fix(core): serialize AI SDK reasoning fragments

refactor(ai): rename evaluation action to run (#50529 )
feat(cli): pair with direct server links (#49971 )
2026-09-22 16:47:34 +00:00 · 2026-09-22 11:37:04 -05:00 · 2026-09-22 09:47:23 -05:00 · 2026-09-22 20:04:52 +05:30 · 2026-09-22 09:49:53 -04:00 · 2026-09-22 13:13:11 +00:00
668 changed files with 16770 additions and 5724 deletions
@@ -112,11 +112,12 @@ jobs:
      - name: Run unit tests
        timeout-minutes: 20
        run: |
+          # The runners have four vCPUs, and each Bun test process performs its own concurrent work.
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            GITHUB_ACTIONS=false bun turbo test
+            GITHUB_ACTIONS=false bun turbo test --concurrency=3
            exit 0
          fi
-          GITHUB_ACTIONS=false bun turbo test --affected
+          GITHUB_ACTIONS=false bun turbo test --affected --concurrency=3
        env:
          OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER: ${{ runner.os == 'Windows' && 'true' || 'false' }}
          TURBO_SCM_BASE: ${{ github.event_name == 'pull_request' && format('{0}^1', github.sha) || github.event.before }}
@@ -32,7 +32,7 @@
    },
    "packages/ai": {
      "name": "@opencode/ai",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@aws-sdk/credential-providers": "3.1057.0",
        "@opencode/schema": "workspace:*",
@@ -54,7 +54,7 @@
    },
    "packages/app": {
      "name": "@opencode/app",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@corvu/drawer": "catalog:",
        "@dnd-kit/abstract": "0.5.0",
@@ -87,12 +87,12 @@
        "effect": "catalog:",
        "fuzzysort": "catalog:",
        "ghostty-web": "github:anomalyco/ghostty-web#83c0a07b8628b748aed073b232cb4b52a6ca11c1",
-        "luxon": "catalog:",
        "qr-scanner": "1.4.2",
        "remeda": "catalog:",
        "solid-js": "catalog:",
        "solid-presence": "0.2.0",
        "tailwindcss": "4.3.3",
+        "uqr": "0.1.3",
      },
      "devDependencies": {
        "@happy-dom/global-registrator": "20.0.11",
@@ -100,7 +100,6 @@
        "@sentry/vite-plugin": "catalog:",
        "@tailwindcss/vite": "4.3.3",
        "@types/bun": "catalog:",
-        "@types/luxon": "catalog:",
        "@types/node": "catalog:",
        "@typescript/native-preview": "catalog:",
        "diff": "catalog:",
@@ -113,7 +112,7 @@
    },
    "packages/cli": {
      "name": "@opencode/cli",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "bin": {
        "opencode2": "./bin/opencode2.cjs",
      },
@@ -177,7 +176,7 @@
    },
    "packages/client": {
      "name": "@opencode/client",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/protocol": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -203,11 +202,10 @@
    },
    "packages/codemode": {
      "name": "@opencode/codemode",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "acorn": "8.15.0",
        "effect": "catalog:",
-        "typescript": "catalog:",
      },
      "devDependencies": {
        "@tsconfig/bun": "catalog:",
@@ -217,7 +215,7 @@
    },
    "packages/console/app": {
      "name": "@opencode/console-app",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@ibm/plex": "6.4.1",
@@ -253,7 +251,7 @@
    },
    "packages/console/core": {
      "name": "@opencode/console-core",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@aws-sdk/client-sts": "3.782.0",
        "@jsx-email/render": "1.1.1",
@@ -280,7 +278,7 @@
    },
    "packages/console/function": {
      "name": "@opencode/console-function",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@openauthjs/openauth": "0.0.0-20250322224806",
        "@opencode/console-core": "workspace:*",
@@ -297,7 +295,7 @@
    },
    "packages/console/mail": {
      "name": "@opencode/console-mail",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@jsx-email/all": "2.2.3",
        "@jsx-email/cli": "1.4.3",
@@ -321,7 +319,7 @@
    },
    "packages/console/support": {
      "name": "@opencode/console-support",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@opencode/console-core": "workspace:*",
@@ -341,7 +339,7 @@
    },
    "packages/core": {
      "name": "@opencode/core",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@ai-sdk/cohere": "3.0.27",
        "@ai-sdk/gateway": "3.0.104",
@@ -409,14 +407,12 @@
    },
    "packages/desktop": {
      "name": "@opencode/desktop",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@zip.js/zip.js": "2.7.62",
-        "electron-context-menu": "4.1.2",
+        "electron-context-menu": "5.0.0",
        "electron-log": "^5",
-        "electron-store": "11.0.2",
        "electron-updater": "6.8.9",
-        "electron-window-state": "^5.0.3",
        "lighthouse": "13.4.1",
      },
      "devDependencies": {
@@ -441,7 +437,7 @@
        "drizzle-kit": "catalog:",
        "drizzle-orm": "catalog:",
        "effect": "catalog:",
-        "electron": "42.10.1",
+        "electron": "44.4.3",
        "electron-builder": "26.15.7",
        "electron-vite": "6.0.0-beta.1",
        "puppeteer-core": "25.9.0",
@@ -460,7 +456,7 @@
    },
    "packages/enterprise": {
      "name": "@opencode/enterprise",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@hono/standard-validator": "catalog:",
        "@opencode-ai/sdk": "1.18.21",
@@ -497,7 +493,7 @@
    },
    "packages/function": {
      "name": "@opencode/function",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@octokit/auth-app": "8.0.1",
        "@octokit/rest": "catalog:",
@@ -513,7 +509,7 @@
    },
    "packages/http-recorder": {
      "name": "@opencode/http-recorder",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@effect/platform-node-shared": "4.0.0-rc.112",
      },
@@ -532,7 +528,7 @@
    },
    "packages/httpapi-codegen": {
      "name": "@opencode/httpapi-codegen",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "effect": "catalog:",
        "prettier": "3.6.2",
@@ -545,7 +541,7 @@
    },
    "packages/latex": {
      "name": "@opencode/latex",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -559,7 +555,7 @@
    },
    "packages/merman": {
      "name": "@opencode/merman",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -574,7 +570,7 @@
    },
    "packages/plugin": {
      "name": "@opencode/plugin",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@ai-sdk/provider": "3.0.8",
        "@opencode/ai": "workspace:*",
@@ -613,7 +609,7 @@
    },
    "packages/plugin-browser": {
      "name": "@opencode/plugin-browser",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -643,7 +639,7 @@
    },
    "packages/protocol": {
      "name": "@opencode/protocol",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/schema": "workspace:*",
        "effect": "catalog:",
@@ -658,7 +654,7 @@
    },
    "packages/schema": {
      "name": "@opencode/schema",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@standard-schema/spec": "catalog:",
        "effect": "catalog:",
@@ -682,7 +678,7 @@
    },
    "packages/sdk": {
      "name": "@opencode/sdk",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -703,7 +699,7 @@
    },
    "packages/server": {
      "name": "@opencode/server",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@effect/platform-node": "catalog:",
        "@effect/platform-node-shared": "catalog:",
@@ -725,7 +721,7 @@
    },
    "packages/session-ui": {
      "name": "@opencode/session-ui",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode/client": "workspace:*",
@@ -760,7 +756,7 @@
    },
    "packages/simulation": {
      "name": "@opencode/simulation",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/ai": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -780,7 +776,7 @@
    },
    "packages/stats/app": {
      "name": "@opencode/stats-app",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@ibm/plex": "6.4.1",
        "@kobalte/core": "catalog:",
@@ -814,7 +810,7 @@
    },
    "packages/stats/core": {
      "name": "@opencode/stats-core",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@aws-sdk/client-athena": "3.933.0",
        "@planetscale/database": "1.19.0",
@@ -833,7 +829,7 @@
    },
    "packages/stats/server": {
      "name": "@opencode/stats-server",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@aws-sdk/client-firehose": "3.933.0",
        "@effect/platform-node": "catalog:",
@@ -879,7 +875,7 @@
    },
    "packages/theme": {
      "name": "@opencode/theme",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opentui/core": "catalog:",
        "effect": "catalog:",
@@ -893,7 +889,7 @@
    },
    "packages/tui": {
      "name": "@opencode/tui",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -928,7 +924,7 @@
    },
    "packages/ui": {
      "name": "@opencode/ui",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@pierre/diffs": "catalog:",
@@ -963,7 +959,7 @@
    },
    "packages/util": {
      "name": "@opencode/util",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@effect/opentelemetry": "catalog:",
        "@effect/platform-node": "catalog:",
@@ -996,7 +992,7 @@
    },
    "packages/web": {
      "name": "@opencode/web",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "@astrojs/cloudflare": "12.6.3",
        "@astrojs/markdown-remark": "6.3.1",
@@ -1037,7 +1033,7 @@
    },
    "services/update": {
      "name": "@opencode/update",
-      "version": "2.0.8",
+      "version": "2.0.14",
      "dependencies": {
        "jose": "6.0.11",
        "semver": "catalog:",
@@ -3343,8 +3339,6 @@

    "ajv-draft-04": ["ajv-draft-04@1.0.0", "", { "peerDependencies": { "ajv": "^8.5.0" }, "optionalPeers": ["ajv"] }, "sha512-mv00Te6nmYbRp5DCwclxtt7yV/joXJPGS7nM+97GdxvuttCOfgI3K4U25zboyeX0O+myI8ERluxQe5wljMmVIw=="],

-    "ajv-formats": ["ajv-formats@3.0.1", "", { "dependencies": { "ajv": "^8.0.0" } }, "sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ=="],
-
    "ajv-i18n": ["ajv-i18n@4.2.0", "", { "peerDependencies": { "ajv": "^8.0.0-beta.0" } }, "sha512-v/ei2UkCEeuKNXh8RToiFsUclmU+G57LO1Oo22OagNMENIw+Yb8eMwvHu7Vn9fmkjJyv6XclhJ8TbuigSglPkg=="],

    "am-i-vibing": ["am-i-vibing@0.4.0", "", { "dependencies": { "process-ancestry": "^0.1.0" }, "bin": { "am-i-vibing": "dist/cli.mjs" } }, "sha512-MxT4XZL7pzLHpuvhDKdMaQHMGGkJDLluKBLsbstn+8wv9sWcFT6h+0ve9qkml95amVTZtZV83gQe2hY+ojgHLg=="],
@@ -3639,8 +3633,6 @@

    "condense-newlines": ["condense-newlines@0.2.1", "", { "dependencies": { "extend-shallow": "^2.0.1", "is-whitespace": "^0.3.0", "kind-of": "^3.0.2" } }, "sha512-P7X+QL9Hb9B/c8HI5BFFKmjgBu2XpQuF98WZ9XkO+dBGgk5XgwiQz7o1SmpglNWId3581UcS0SFAWfoIhMHPfg=="],

-    "conf": ["conf@15.1.0", "", { "dependencies": { "ajv": "^8.17.1", "ajv-formats": "^3.0.1", "atomically": "^2.0.3", "debounce-fn": "^6.0.0", "dot-prop": "^10.0.0", "env-paths": "^3.0.0", "json-schema-typed": "^8.0.1", "semver": "^7.7.2", "uint8array-extras": "^1.5.0" } }, "sha512-Uy5YN9KEu0WWDaZAVJ5FAmZoaJt9rdK6kH+utItPyGsCqCgaTKkrmZx3zoE0/3q6S3bcp3Ihkk+ZqPxWxFK5og=="],
-
    "config-chain": ["config-chain@1.1.13", "", { "dependencies": { "ini": "^1.3.4", "proto-list": "~1.2.1" } }, "sha512-qj+f8APARXHrM0hraqXYb2/bOVSV4PvJQlNZ/DVj0QrmNM2q2euizkeuVckQ57J+W0mRH6Hvi+k50M4Jul2VRQ=="],

    "configstore": ["configstore@7.1.0", "", { "dependencies": { "atomically": "^2.0.3", "dot-prop": "^9.0.0", "graceful-fs": "^4.2.11", "xdg-basedir": "^5.1.0" } }, "sha512-N4oog6YJWbR9kGyXvS7jEykLDXIE2C0ILYqNBZBp9iwiJpoCBWYsuAdW6PPFn6w06jjnC+3JstVvWHO4cZqvRg=="],
@@ -3779,8 +3771,6 @@

    "db0": ["db0@0.3.4", "", { "peerDependencies": { "@electric-sql/pglite": "*", "@libsql/client": "*", "better-sqlite3": "*", "drizzle-orm": "*", "mysql2": "*", "sqlite3": "*" }, "optionalPeers": ["@electric-sql/pglite", "@libsql/client", "better-sqlite3", "drizzle-orm", "mysql2", "sqlite3"] }, "sha512-RiXXi4WaNzPTHEOu8UPQKMooIbqOEyqA1t7Z6MsdxSCeb8iUC9ko3LcmsLmeUt2SM5bctfArZKkRQggKZz7JNw=="],

-    "debounce-fn": ["debounce-fn@6.0.0", "", { "dependencies": { "mimic-function": "^5.0.0" } }, "sha512-rBMW+F2TXryBwB54Q0d8drNEI+TfoS9JpNTAoVpukbWEhjXQq4rySFYLaqXMFXwdv61Zb2OHtj5bviSoimqxRQ=="],
-
    "debug": ["debug@4.4.3", "", { "dependencies": { "ms": "^2.1.3" }, "peerDependencies": { "supports-color": "*" }, "optionalPeers": ["supports-color"] }, "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA=="],

    "decimal.js": ["decimal.js@10.6.0", "", {}, "sha512-YpgQiITW3JXGntzdUmyUR1V812Hn8T1YVXhCu+wO3OpS4eU9l4YdD3qjyiKdV6mvV29zapkMeD390UVEf2lkUg=="],
@@ -3891,13 +3881,13 @@

    "ejs": ["ejs@3.1.10", "", { "dependencies": { "jake": "^10.8.5" }, "bin": { "ejs": "bin/cli.js" } }, "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA=="],

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+    "electron": ["electron@44.4.3", "", { "dependencies": { "@electron-internal/extract-zip": "^1.0.1", "@electron/get": "^5.0.0", "@types/node": "^24.9.0" }, "bin": { "electron": "cli.js", "install-electron": "install.js" } }, "sha512-LTpSFTB40qVCXIX5xMo+cgHI/Jjkbjw7VpB26PccEbroqOn72LBukeaDwPVo1fBYzSzs0c9iPuAucFCO7Tw81Q=="],

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    "electron-builder-squirrel-windows": ["electron-builder-squirrel-windows@26.15.7", "", { "dependencies": { "app-builder-lib": "26.15.7", "builder-util": "26.15.3", "electron-winstaller": "5.4.0" } }, "sha512-B4uvn2NzFSuf084udWqugludFull6CRJiWe2dLzMnZLl6G5hdAGk0fsBMGlBSpKjvQCJn8IPc+S7OnJ+GXqwLA=="],

-    "electron-context-menu": ["electron-context-menu@4.1.2", "", { "dependencies": { "cli-truncate": "^4.0.0", "electron-dl": "^4.0.0", "electron-is-dev": "^3.0.1" } }, "sha512-9xYTUV0oRqKL50N9W71IrXNdVRB0LuBp3R1zkUdUc2wfIa2/QZwYYj5RLuO7Tn7ZSLVIaO3X6u+EIBK+cBvzrQ=="],
+    "electron-context-menu": ["electron-context-menu@5.0.0", "", { "dependencies": { "cli-truncate": "^4.0.0", "electron-dl": "^4.0.0", "electron-is-dev": "^3.0.1" } }, "sha512-rgFpRtwY0/rhsRCoz9rE6VM4WueEsLbIpca7ucOhERVrbGB2dQrxa9xwBNLplU54jRgPuv6nTEbxoplE5bzy2A=="],

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@@ -3907,16 +3897,12 @@

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-    "electron-store": ["electron-store@11.0.2", "", { "dependencies": { "conf": "^15.0.2", "type-fest": "^5.0.1" } }, "sha512-4VkNRdN+BImL2KcCi41WvAYbh6zLX5AUTi4so68yPqiItjbgTjqpEnGAqasgnG+lB6GuAyUltKwVopp6Uv+gwQ=="],
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@@ -7013,8 +6977,6 @@

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@@ -7393,8 +7355,6 @@

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@@ -7419,6 +7379,8 @@

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@@ -7567,8 +7529,6 @@

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    "venice-ai-sdk-provider/@ai-sdk/openai-compatible/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.46", "", { "dependencies": { "@ai-sdk/provider": "3.0.15", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8", "undici": "^6.28.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-tEtld97plCFiYevsJuOkGkeuhQndeMWFBVrJS4AjnbD5AqrNSXRCe0p+BZ3Cju/sxDeeZ9ym3q9YUV8fASA7aQ=="],
@@ -7577,8 +7537,6 @@

    "vscode-languageserver/vscode-languageserver-protocol/vscode-jsonrpc": ["vscode-jsonrpc@8.2.0", "", {}, "sha512-C+r0eKJUIfiDIfwJhria30+TYWPtuHJXHtI7J0YlOmKAo7ogxP20T0zxB7HZQIFhIyvoBPwWskjxrvAtfjyZfA=="],

-    "workbox-build/fs-extra/jsonfile": ["jsonfile@6.2.1", "", { "dependencies": { "universalify": "^2.0.0" }, "optionalDependencies": { "graceful-fs": "^4.1.6" } }, "sha512-zwOTdL3rFQ/lRdBnntKVOX6k5cKJwEc1HdilT71BWEu7J41gXIB2MRp+vxduPSwZJPWBxEzv4yH1wYLJGUHX4Q=="],
-
    "wrangler/esbuild/@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.25.4", "", { "os": "aix", "cpu": "ppc64" }, "sha512-1VCICWypeQKhVbE9oW/sJaAmjLxhVqacdkvPLEjwlttjfwENRSClS8EjBz0KzRyFSCPDIkuXW34Je/vk7zdB7Q=="],

    "wrangler/esbuild/@esbuild/android-arm": ["@esbuild/android-arm@0.25.4", "", { "os": "android", "cpu": "arm" }, "sha512-QNdQEps7DfFwE3hXiU4BZeOV68HHzYwGd0Nthhd3uCkkEKK7/R6MTgM0P7H7FAs5pU/DIWsviMmEGxEoxIZ+ZQ=="],
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-TlCPtuIvTNF01fLI0yHCLzVkx53yF9xxvAObDMGeo8M=",
-    "aarch64-linux": "sha256-aEjyPIXHeA5w1iZXbPKJAOIJQBfXg+LAx/y7C5uFz4g=",
-    "aarch64-darwin": "sha256-lthMTio2qNy+H2tL9cAPmqC41O+wdSADI61cnW4dIb0=",
-    "x86_64-darwin": "sha256-ONFbRQnwzOYHo0Pyh327QfJG2uzqzNEn/SS2vbYYMdM="
+    "x86_64-linux": "sha256-WBGj4wU5PQs+0zbDbScFhJs0GL8qWnswIsJb/Kee5Qc=",
+    "aarch64-linux": "sha256-Z8hkyNMdqCpuv24q50QhO2RECINvENjBhLDY5FKcnFc=",
+    "aarch64-darwin": "sha256-HZHb9HcXMOc7bKR7eADQSyfWxX37GAcoRi/EMSpRiP4=",
+    "x86_64-darwin": "sha256-CcWCOAcW4t9ADs48fMhumSbDcQWdk91LpkG6fe/gWlk="
  }
 }
@@ -2,7 +2,7 @@
  "$schema": "https://json.schemastore.org/package.json",
  "name": "opencode",
  "description": "AI-powered development tool",
-  "version": "2.0.8",
+  "version": "2.0.14",
  "private": true,
  "type": "module",
  "packageManager": "bun@1.4.2",
@@ -12,7 +12,7 @@

 Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `LanguageModel.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, and `LLM.generateObject`. Use `LLMRequest.update(...)` when deriving canonical request data; do not add a duplicate `LLM.updateRequest(...)` path. Two ways to construct the same thing is one too many.

- Keep provider-defined string enums forward-compatible. Expose known values for autocomplete while accepting future values with `Known | (string & {})`; use `Schema.String` at runtime unless rejecting unknown values is required for correctness.
+- Prefer forward compatibility for provider-defined options that OpenCode only passes through. For pass-through string enums, expose known values for autocomplete while accepting future values with `Known | (string & {})`, and accept any string at runtime. Closed literals are appropriate when OpenCode branches on a value, transforms its associated structure, or otherwise cannot correctly handle an unknown variant. New options whose shape or behavior requires implementation remain unsupported until they are handled; do not blindly forward unknown structures.
 - Order reasoning-effort values from lowest to highest: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`, `max`. Provider-specific subsets follow the same relative order in types, schemas, option lists, and tests.

 ## Tests
@@ -29,6 +29,47 @@ await Effect.runPromise(program.pipe(Effect.provide(llmLayer)))

 Run `LLMClient.stream(request)` instead of `generate` when you want incremental `LLMEvent`s. The event stream is provider-neutral — same shape across OpenAI Chat, OpenAI Responses, Anthropic Messages, Gemini, Bedrock Converse, and any OpenAI-compatible deployment.

+## Experimental evaluation
+
+Evaluation models compare shared state with typed choice, score, and boolean questions. The API is
+isolated under an experimental entrypoint and provider namespace while the contract evolves:
+
+```ts
+import { Effect } from "effect"
+import { Evaluation, EvaluationClient } from "@opencode/ai/experimental"
+import { TypeSafeAI } from "@opencode/ai/providers"
+
+const model = TypeSafeAI.configure().experimental.evaluation("jev-latest")
+
+const program = Evaluation.run({
+  model,
+  state: "I was charged twice. Please refund the duplicate payment.",
+  questions: {
+    department: {
+      type: "choice",
+      instructions: "Which team should handle this?",
+      criteria: { billing: "Payments and refunds", technical: "Bugs and outages" },
+    },
+    urgency: {
+      type: "score",
+      instructions: "How urgent is this?",
+      criteria: ["Can wait", "Needs prompt attention", "Blocking revenue"],
+    },
+    refund: { type: "boolean", instructions: "Is the customer asking for a refund?" },
+  },
+})
+
+const response = await Effect.runPromise(program.pipe(Effect.provide(EvaluationClient.fetchLayer)))
+
+console.log(response.answers.department.choice)
+console.log(response.answers.refund.probability)
+```
+
+`TypeSafeAI` reads `TYPESAFE_API_KEY`. `OpenCodeZen` exposes the same selector and reads
+`OPENCODE_API_KEY`. The common API uses `boolean`; System One routes lower it to native `noul`.
+Choice and score confidence plus score legends remain available in provider metadata, and the
+provider's rounded probabilities are returned unchanged.
+
 ## Alibaba Cloud Model Studio

 `Alibaba` provides standard Model Studio inference. Configure a region explicitly, then select
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.8",
+  "version": "2.0.14",
  "name": "@opencode/ai",
  "type": "module",
  "license": "MIT",
@@ -0,0 +1,29 @@
+export { EvaluationClient } from "./experimental/evaluation-client.js"
+export {
+  BooleanAnswer,
+  BooleanQuestion,
+  ChoiceAnswer,
+  ChoiceQuestion,
+  Evaluation,
+  EvaluationAnswer,
+  EvaluationInput,
+  EvaluationModel,
+  EvaluationModelSchema,
+  EvaluationQuestion,
+  EvaluationRequest,
+  EvaluationResponse,
+  EvaluationRounding,
+  ScoreAnswer,
+  ScoreQuestion,
+} from "./experimental/evaluation.js"
+export type {
+  AnswerFor,
+  AnswersFor,
+  EvaluationModelOptions,
+  EvaluationOptions,
+  EvaluationQuestions,
+  EvaluationRequestFor,
+  EvaluationRequestInput,
+  EvaluationResponseFor,
+  EvaluationRoute,
+} from "./experimental/evaluation.js"
@@ -0,0 +1,54 @@
+import { Context, Effect, Layer } from "effect"
+import { RequestExecutor } from "../route/executor.js"
+import { mergeHttpOptions, type AIError } from "../schema/index.js"
+import { sanitizeSurrogates } from "../utils/sanitize.js"
+import {
+  type EvaluationOptions,
+  type EvaluationQuestions,
+  type EvaluationRequestFor,
+  type EvaluationResponseFor,
+} from "./evaluation.js"
+
+export type Execute = RequestExecutor.Interface["execute"]
+
+export interface Interface {
+  readonly evaluate: <Options extends EvaluationOptions, const Questions extends EvaluationQuestions>(
+    request: EvaluationRequestFor<Options, Questions>,
+  ) => Effect.Effect<EvaluationResponseFor<Questions>, AIError>
+}
+
+export class Service extends Context.Service<Service, Interface>()("@opencode/AI/Experimental/EvaluationClient") {}
+
+export const evaluate = <Options extends EvaluationOptions, const Questions extends EvaluationQuestions>(
+  request: EvaluationRequestFor<Options, Questions>,
+): Effect.Effect<EvaluationResponseFor<Questions>, AIError, Service> =>
+  Effect.flatMap(Service, (client) => client.evaluate(request))
+
+export const layer: Layer.Layer<Service, never, RequestExecutor.Service> = Layer.effect(
+  Service,
+  Effect.gen(function* () {
+    const executor = yield* RequestExecutor.Service
+    return Service.of({
+      evaluate: (request) =>
+        request.model.route.evaluate(
+          {
+            ...sanitizeSurrogates({
+              ...request,
+              model: undefined,
+              http: mergeHttpOptions(request.model.http, request.http),
+            }),
+            model: request.model,
+          },
+          executor.execute,
+        ),
+    })
+  }),
+)
+export const fetchLayer = layer.pipe(Layer.provide(RequestExecutor.fetchLayer))
+
+export const EvaluationClient = {
+  Service,
+  layer,
+  fetchLayer,
+  evaluate,
+} as const
@@ -0,0 +1,245 @@
+import { Effect, Schema } from "effect"
+import {
+  AIError,
+  HttpOptions,
+  InvalidRequestError,
+  ModelID,
+  ProviderID,
+  ProviderMetadata,
+  Usage,
+} from "../schema/index.js"
+import { EvaluationClient, Service, type Execute } from "./evaluation-client.js"
+
+export const EvaluationInput = Schema.Union([Schema.String, Schema.JsonObject, Schema.Array(Schema.Json)])
+export type EvaluationInput = Schema.Schema.Type<typeof EvaluationInput>
+
+const EvaluationCriterion = Schema.NullOr(EvaluationInput)
+const ChoiceCriteria = Schema.Record(Schema.String, EvaluationCriterion).pipe(
+  Schema.refine((x): x is typeof x => Object.keys(x).length > 0, {
+    message: "Choice criteria must be a nonempty option map",
+  }),
+)
+
+export const ChoiceQuestion = Schema.Struct({
+  type: Schema.Literal("choice"),
+  instructions: EvaluationInput,
+  criteria: ChoiceCriteria,
+})
+export type ChoiceQuestion = Schema.Schema.Type<typeof ChoiceQuestion>
+
+export const ScoreQuestion = Schema.Struct({
+  type: Schema.Literal("score"),
+  instructions: EvaluationInput,
+  criteria: Schema.Array(EvaluationCriterion).check(Schema.isMinLength(2)),
+})
+export type ScoreQuestion = Schema.Schema.Type<typeof ScoreQuestion>
+
+export const BooleanQuestion = Schema.Struct({
+  type: Schema.Literal("boolean"),
+  instructions: EvaluationInput,
+  criteria: Schema.optional(
+    Schema.Struct({
+      true: Schema.optional(EvaluationCriterion),
+      false: Schema.optional(EvaluationCriterion),
+    }),
+  ),
+})
+export type BooleanQuestion = Schema.Schema.Type<typeof BooleanQuestion>
+
+export const EvaluationQuestion = Schema.Union([ChoiceQuestion, ScoreQuestion, BooleanQuestion]).pipe(
+  Schema.toTaggedUnion("type"),
+)
+export type EvaluationQuestion = Schema.Schema.Type<typeof EvaluationQuestion>
+export type EvaluationQuestions = Readonly<Record<string, EvaluationQuestion>>
+const EvaluationQuestions = Schema.Record(Schema.String, EvaluationQuestion).pipe(
+  Schema.refine((x): x is typeof x => Object.keys(x).length > 0, {
+    message: "Evaluation questions must be a nonempty map",
+  }),
+)
+
+const Probability = Schema.Number.check(Schema.isBetween({ minimum: 0, maximum: 1 }))
+
+export const ChoiceAnswer = Schema.Struct({
+  type: Schema.Literal("choice"),
+  choice: Schema.String,
+  probabilities: Schema.optional(Schema.Record(Schema.String, Probability)),
+})
+export type ChoiceAnswer = Schema.Schema.Type<typeof ChoiceAnswer>
+
+export const ScoreAnswer = Schema.Struct({
+  type: Schema.Literal("score"),
+  score: Schema.Number,
+  probabilities: Schema.optional(Schema.Record(Schema.String, Probability)),
+})
+export type ScoreAnswer = Schema.Schema.Type<typeof ScoreAnswer>
+
+export const BooleanAnswer = Schema.Struct({
+  type: Schema.Literal("boolean"),
+  probability: Probability,
+})
+export type BooleanAnswer = Schema.Schema.Type<typeof BooleanAnswer>
+
+export const EvaluationAnswer = Schema.Union([ChoiceAnswer, ScoreAnswer, BooleanAnswer]).pipe(
+  Schema.toTaggedUnion("type"),
+)
+export type EvaluationAnswer = Schema.Schema.Type<typeof EvaluationAnswer>
+
+export type AnswerFor<Question extends EvaluationQuestion> = Question extends {
+  readonly type: "choice"
+  readonly criteria: infer Criteria
+}
+  ? {
+      readonly type: "choice"
+      readonly choice: Extract<keyof Criteria, string>
+      readonly probabilities?: Readonly<Record<Extract<keyof Criteria, string>, number>>
+    }
+  : Question extends { readonly type: "score" }
+    ? ScoreAnswer
+    : BooleanAnswer
+
+export type AnswersFor<Questions extends EvaluationQuestions> = {
+  readonly [ID in keyof Questions]: AnswerFor<Questions[ID]>
+}
+
+export type EvaluationOptions = Record<string, unknown>
+
+export interface EvaluationRoute<Options extends EvaluationOptions = EvaluationOptions> {
+  readonly id: string
+  readonly evaluate: <const Questions extends EvaluationQuestions>(
+    request: EvaluationRequestFor<Options, Questions>,
+    execute: Execute,
+  ) => Effect.Effect<EvaluationResponseFor<Questions>, AIError>
+}
+
+export class EvaluationModel<Options extends EvaluationOptions = EvaluationOptions> {
+  declare protected readonly _Options: (options: Options) => Options
+  readonly id: ModelID
+  readonly provider: ProviderID
+  readonly route: EvaluationRoute<Options>
+  readonly http?: HttpOptions
+
+  constructor(input: EvaluationModel.Input<Options>) {
+    this.id = input.id
+    this.provider = input.provider
+    this.route = input.route
+    this.http = input.http
+  }
+
+  static make<Options extends EvaluationOptions = EvaluationOptions>(input: EvaluationModel.MakeInput<Options>) {
+    return new EvaluationModel<Options>({
+      id: ModelID.make(input.id),
+      provider: ProviderID.make(input.provider),
+      route: input.route,
+      http: input.http,
+    })
+  }
+}
+
+export namespace EvaluationModel {
+  export interface Input<Options extends EvaluationOptions = EvaluationOptions> {
+    readonly id: ModelID
+    readonly provider: ProviderID
+    readonly route: EvaluationRoute<Options>
+    readonly http?: HttpOptions
+  }
+
+  export interface MakeInput<Options extends EvaluationOptions = EvaluationOptions>
+    extends Omit<Input<Options>, "id" | "provider"> {
+    readonly id: string | ModelID
+    readonly provider: string | ProviderID
+  }
+}
+
+export const EvaluationModelSchema = Schema.declare(
+  (value): value is EvaluationModel => value instanceof EvaluationModel,
+  {
+    expected: "Evaluation.Model",
+  },
+)
+
+export class EvaluationRequest extends Schema.Class<EvaluationRequest>("Evaluation.Request")({
+  model: EvaluationModelSchema,
+  state: EvaluationInput,
+  questions: EvaluationQuestions,
+  options: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
+  http: Schema.optional(HttpOptions),
+}) {
+  declare protected readonly _EvaluationRequest: void
+}
+
+export type EvaluationModelOptions<Model> = Model extends EvaluationModel<infer Options> ? Options : never
+
+export type EvaluationRequestFor<
+  Options extends EvaluationOptions = EvaluationOptions,
+  Questions extends EvaluationQuestions = EvaluationQuestions,
+> = Omit<EvaluationRequest, "model" | "questions" | "options"> & {
+  readonly model: EvaluationModel<Options>
+  readonly questions: Questions
+  readonly options?: Options
+}
+
+export type EvaluationRequestInput<
+  Model extends object = EvaluationModel,
+  Questions extends EvaluationQuestions = EvaluationQuestions,
+> = Omit<ConstructorParameters<typeof EvaluationRequest>[0], "model" | "questions" | "options" | "http"> & {
+  readonly model: Model
+  readonly questions: Questions
+  readonly options?: NoInfer<EvaluationModelOptions<Model>>
+  readonly http?: HttpOptions.Input
+} & (Model extends EvaluationModel<EvaluationModelOptions<Model>> ? unknown : never)
+
+export class EvaluationRounding extends Schema.Class<EvaluationRounding>("Evaluation.Rounding")({
+  probabilityDecimals: Schema.optional(Schema.Int),
+  scoreDecimals: Schema.optional(Schema.Int),
+}) {}
+
+export class EvaluationResponse extends Schema.Class<EvaluationResponse>("Evaluation.Response")({
+  model: ModelID,
+  answers: Schema.Record(Schema.String, EvaluationAnswer),
+  usage: Schema.optional(Usage),
+  rounding: Schema.optional(EvaluationRounding),
+  providerMetadata: Schema.optional(ProviderMetadata),
+}) {}
+
+export type EvaluationResponseFor<Questions extends EvaluationQuestions> = Omit<EvaluationResponse, "answers"> & {
+  readonly answers: AnswersFor<Questions>
+}
+
+export function request<const Model extends object, const Questions extends EvaluationQuestions>(
+  input: EvaluationRequestInput<Model, Questions>,
+): EvaluationRequestFor<EvaluationModelOptions<Model>, Questions>
+export function request(input: EvaluationRequest): EvaluationRequest
+export function request(input: EvaluationRequest | EvaluationRequestInput) {
+  if (input instanceof EvaluationRequest) return input
+  return new EvaluationRequest({
+    ...input,
+    model: input.model as unknown as EvaluationModel,
+    http: input.http === undefined ? undefined : HttpOptions.make(input.http),
+  })
+}
+
+export function run<const Model extends object, const Questions extends EvaluationQuestions>(
+  input: EvaluationRequestInput<Model, Questions>,
+): Effect.Effect<EvaluationResponseFor<Questions>, AIError, Service>
+export function run(input: EvaluationRequest): Effect.Effect<EvaluationResponse, AIError, Service>
+export function run(input: EvaluationRequest | EvaluationRequestInput) {
+  return Effect.try({
+    try: () => (input instanceof EvaluationRequest ? input : request(input)),
+    catch: (cause) =>
+      new AIError({
+        reason: new InvalidRequestError({
+          message: cause instanceof Error ? cause.message : String(cause),
+          cause,
+        }),
+      }),
+  }).pipe(
+    Effect.flatMap((request) =>
+      EvaluationClient.evaluate(request as EvaluationRequestFor<EvaluationOptions, EvaluationQuestions>),
+    ),
+  )
+}
+
+export const Evaluation = {
+  request,
+  run,
+} as const
@@ -0,0 +1,222 @@
+import { Effect, Schema } from "effect"
+import { Headers, HttpClientRequest } from "effect/unstable/http"
+import {
+  BooleanAnswer,
+  ChoiceAnswer,
+  ChoiceQuestion,
+  EvaluationInput,
+  EvaluationModel,
+  EvaluationResponse,
+  EvaluationRounding,
+  ScoreAnswer,
+  ScoreQuestion,
+  type EvaluationResponseFor,
+  type EvaluationRoute,
+} from "./evaluation.js"
+import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
+import {
+  AIError,
+  HttpContext,
+  HttpOptions,
+  InvalidProviderOutputError,
+  InvalidRequestError,
+  ModelID,
+  Usage,
+  mergeJsonRecords,
+} from "../schema/index.js"
+
+const Noul = Schema.Struct({
+  type: Schema.Literal("noul"),
+  instructions: EvaluationInput,
+  criteria: Schema.optional(
+    Schema.Struct({
+      true: Schema.optional(Schema.NullOr(EvaluationInput)),
+      false: Schema.optional(Schema.NullOr(EvaluationInput)),
+    }),
+  ),
+})
+const Question = Schema.Union([
+  ChoiceQuestion.pipe(
+    Schema.refine((x): x is typeof x => Object.keys(x.criteria).length <= 255, {
+      message: "System One Choice questions support at most 255 options",
+    }),
+  ),
+  ScoreQuestion.pipe(
+    Schema.refine((x): x is typeof x => x.criteria.length <= 10, {
+      message: "System One Score questions support at most 10 levels",
+    }),
+  ),
+  Noul,
+])
+const Request = Schema.StructWithRest(
+  Schema.Struct({
+    model: Schema.String,
+    state: EvaluationInput,
+    questions: Schema.Record(Schema.String, Question),
+  }),
+  [Schema.Record(Schema.String, Schema.Any)],
+)
+
+const Probability = Schema.Number.check(Schema.isBetween({ minimum: 0, maximum: 1 }))
+const NoulAnswer = Schema.Struct({ type: Schema.Literal("noul"), noul: Probability })
+const Choice = Schema.Struct({
+  type: Schema.Literal("choice"),
+  choice: Schema.String,
+  probabilities: Schema.Record(Schema.String, Probability),
+  confidence: Schema.optional(Probability),
+})
+const Score = Schema.Struct({
+  type: Schema.Literal("score"),
+  score: Schema.Number,
+  probabilities: Schema.Record(Schema.String, Probability),
+  legend: Schema.optional(Schema.Record(Schema.String, Schema.Json)),
+  confidence: Schema.optional(Probability),
+})
+const NativeUsage = Schema.Struct({
+  input_tokens: Schema.optional(Schema.Number),
+  output_tokens: Schema.optional(Schema.Number),
+})
+
+const encode = Schema.encodeUnknownEffect(Schema.fromJsonString(Request))
+const exact = (x: Readonly<Record<string, unknown>>, keys: ReadonlyArray<string>) =>
+  Object.keys(x).length === keys.length && keys.every((key) => Object.hasOwn(x, key))
+
+export interface ModelInput {
+  readonly id: string | ModelID
+  readonly provider: string
+  readonly providerMetadataKey: string
+  readonly auth: AuthDefinition
+  readonly baseURL: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions
+}
+
+export const model = (cfg: ModelInput) => {
+  const route: EvaluationRoute = {
+    id: "system-one",
+    evaluate: (req, send) =>
+      Effect.gen(function* () {
+        const url = new URL(`${cfg.baseURL.replace(/\/$/, "")}/systemone`)
+        Object.entries(req.http?.query ?? {}).forEach(([key, value]) => url.searchParams.set(key, value))
+        const body = yield* encode({
+          ...mergeJsonRecords(req.options, req.http?.body),
+          model: req.model.id,
+          state: req.state,
+          questions: Object.fromEntries(
+            Object.entries(req.questions).map(([id, x]) => [id, x.type === "boolean" ? { ...x, type: "noul" } : x]),
+          ),
+        }).pipe(
+          Effect.mapError(
+            (cause) => new AIError({ reason: new InvalidRequestError({ message: cause.message, cause }) }),
+          ),
+        )
+        const headers = yield* Auth.toEffect(cfg.auth)({
+          request: req,
+          method: "POST",
+          url: url.toString(),
+          body,
+          headers: Headers.fromInput({ ...cfg.headers, ...req.http?.headers }),
+        })
+        const res = yield* send(
+          HttpClientRequest.post(url).pipe(
+            HttpClientRequest.setHeaders(headers),
+            HttpClientRequest.bodyText(body, "application/json"),
+          ),
+        )
+        const http = new HttpContext({ url: res.request.url, status: res.status, headers: res.headers })
+        const fail = (message: string, cause: unknown, body?: string) =>
+          new AIError({ reason: new InvalidProviderOutputError({ route: route.id, message, body, http, cause }) })
+        const text = yield* res.text.pipe(
+          Effect.mapError((cause) => fail("Failed to read the System One response", cause)),
+        )
+        const entries = Object.entries(req.questions)
+        const output = Schema.Struct({
+          model: Schema.String,
+          answers: Schema.Struct(
+            Object.fromEntries(
+              entries.map(([id, question]) => {
+                if (question.type === "boolean") return [id, NoulAnswer]
+                if (question.type === "choice") {
+                  const keys = Object.keys(question.criteria)
+                  return [
+                    id,
+                    Choice.pipe(
+                      Schema.refine(
+                        (x): x is typeof x =>
+                          Object.hasOwn(question.criteria, x.choice) && exact(x.probabilities, keys),
+                        { message: `Question "${id}" returned an invalid choice answer` },
+                      ),
+                    ),
+                  ]
+                }
+                const keys = question.criteria.map((_, index) => String(index))
+                return [
+                  id,
+                  Score.pipe(
+                    Schema.refine(
+                      (x): x is typeof x =>
+                        x.score >= 0 && x.score <= question.criteria.length - 1 && exact(x.probabilities, keys),
+                      { message: `Question "${id}" returned an invalid score answer` },
+                    ),
+                  ),
+                ]
+              }),
+            ) as Record<string, Schema.Codec<unknown>>,
+          ),
+          usage: Schema.optional(NativeUsage),
+        })
+        const data = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(output))(text).pipe(
+          Effect.mapError((cause) => fail("System One returned an invalid response", cause, text)),
+        )
+
+        const confidence: Record<string, number> = {}
+        const legend: Record<string, Record<string, Schema.Json>> = {}
+        const answers = Object.fromEntries(
+          entries.map(([id, question]) => {
+            const answer = data.answers[id]
+            if (question.type === "boolean")
+              return [
+                id,
+                { type: "boolean", probability: (answer as typeof NoulAnswer.Type).noul } satisfies BooleanAnswer,
+              ]
+            if (question.type === "choice") {
+              const value = answer as typeof Choice.Type
+              if (value.confidence !== undefined) confidence[id] = value.confidence
+              return [
+                id,
+                { type: "choice", choice: value.choice, probabilities: value.probabilities } satisfies ChoiceAnswer,
+              ]
+            }
+            const value = answer as typeof Score.Type
+            if (value.confidence !== undefined) confidence[id] = value.confidence
+            if (value.legend !== undefined) legend[id] = value.legend
+            return [id, { type: "score", score: value.score, probabilities: value.probabilities } satisfies ScoreAnswer]
+          }),
+        )
+        const meta = {
+          ...(Object.keys(confidence).length === 0 ? {} : { confidence }),
+          ...(Object.keys(legend).length === 0 ? {} : { legend }),
+        }
+        return new EvaluationResponse({
+          model: ModelID.make(data.model),
+          answers,
+          usage: data.usage
+            ? new Usage({
+                inputTokens: data.usage.input_tokens,
+                outputTokens: data.usage.output_tokens,
+                totalTokens:
+                  data.usage.input_tokens === undefined && data.usage.output_tokens === undefined
+                    ? undefined
+                    : (data.usage.input_tokens ?? 0) + (data.usage.output_tokens ?? 0),
+                providerMetadata: { [cfg.providerMetadataKey]: data.usage },
+              })
+            : undefined,
+          rounding: new EvaluationRounding({ probabilityDecimals: 2, scoreDecimals: 2 }),
+          providerMetadata: Object.keys(meta).length === 0 ? undefined : { [cfg.providerMetadataKey]: meta },
+        }) as EvaluationResponseFor<typeof req.questions>
+      }),
+  }
+  return EvaluationModel.make({ id: cfg.id, provider: cfg.provider, route, http: cfg.http })
+}
+
+export const SystemOne = { model } as const
@@ -83,7 +83,7 @@ const AnthropicCacheControl = Schema.Struct({
  type: Schema.tag("ephemeral"),
  ttl: Schema.optional(Schema.Literals(["5m", "1h"])),
 })
-const AnthropicServiceTier = Schema.Literals(["auto", "standard_only"])
+const AnthropicServiceTier = knownString<"auto" | "standard_only">()

 const AnthropicTextBlock = Schema.Struct({
  type: Schema.tag("text"),
@@ -276,7 +276,7 @@ const AnthropicThinkingBlockBinding = Schema.Struct({
 })

 const AnthropicThinkingFields = {
-  display: Schema.optional(Schema.Literals(["summarized", "omitted"])),
+  display: Schema.optional(knownString<"summarized" | "omitted">()),
  block_binding: Schema.optional(AnthropicThinkingBlockBinding),
 }
 const AnthropicThinkingEnabled = Schema.Struct({
@@ -73,11 +73,6 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
          )
        if (event.type === "error") {
          terminal = true
-          yield* OpenResponses.decodeKnownErrorEvent(event).pipe(
-            Effect.mapError((cause) =>
-              ProviderShared.eventError(options.id, `${options.name} returned a malformed error event`, frame, cause),
-            ),
-          )
          return {
            type: "provider-failure",
            error: OpenResponses.providerFailure(event, `${options.name} stream error`, frame),
@@ -108,7 +108,7 @@ const incremental = (
  return input.slice(baseline.length)
 }

-const code = (event: OpenResponses.Event) => event.code || event.error?.code || event.response?.error?.code || undefined
+const code = (event: OpenResponses.Event) => OpenResponses.errorDetail(event).code

 const rejected = (
  observation: Extract<ChannelObservation, { readonly type: "provider-failure" }>,
@@ -1,4 +1,4 @@
-import { Effect, Option, Schema, SchemaGetter } from "effect"
+import { Effect, Option, Schema } from "effect"
 import type { Content } from "@opencode/schema/tool"
 import { HttpTransport } from "../route/transport/index.js"
 import { Protocol } from "../route/protocol.js"
@@ -333,53 +333,13 @@ export const StreamItem = Schema.StructWithRest(
 export type StreamItem = Schema.Schema.Type<typeof StreamItem>
 export type OutputItem = StreamItem & { readonly id: string }

-// Responses-compatible providers put streaming error details at the top level or
-// under `error`, and response failures under `response.error`. Accept all three shapes.
+// Responses-compatible providers put error details at the top level, under `error`, or under
+// `response.error`, and gateways reshape them freely: strings, numeric codes, extra fields. Those
+// fields decode as opaque values and `errorDetail` reads them defensively, so an error frame can
+// only fail on invalid JSON and otherwise always classifies with the raw body as the fallback.
 // https://www.openresponses.org/specification
-const OpenResponsesErrorObject = Schema.Struct({
-  type: optionalNull(Schema.String),
-  code: optionalNull(Schema.String),
-  message: optionalNull(Schema.String),
-  param: optionalNull(Schema.String),
-})
-const OpenResponsesErrorPayload = Schema.Union([Schema.String, OpenResponsesErrorObject]).pipe(
-  Schema.decodeTo(OpenResponsesErrorObject, {
-    decode: SchemaGetter.transform((error) => (typeof error === "string" ? { message: error } : error)),
-    encode: SchemaGetter.passthrough(),
-  }),
-)
-type OpenResponsesErrorPayload = Schema.Schema.Type<typeof OpenResponsesErrorPayload>
-
-const WebSocketErrorHeader = Schema.Union([Schema.String, Schema.Number, Schema.Boolean])
-export const WebSocketErrorEvent = Schema.StructWithRest(
-  Schema.Struct({
-    type: Schema.tag("error"),
-    status: Schema.optional(Schema.Number),
-    status_code: Schema.optional(Schema.Number),
-    code: optionalNull(Schema.String),
-    message: Schema.optional(Schema.String),
-    param: optionalNull(Schema.String),
-    error: optionalNull(OpenResponsesErrorPayload),
-    headers: Schema.optional(Schema.Record(Schema.String, WebSocketErrorHeader)),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-const decodeWebSocketErrorEvent = Schema.decodeUnknownEffect(WebSocketErrorEvent)
-
-export const decodeKnownErrorEvent = (event: Event) =>
-  decodeWebSocketErrorEvent({
-    ...event,
-    status: typeof event.status === "number" ? event.status : undefined,
-    status_code: typeof event.status_code === "number" ? event.status_code : undefined,
-    headers: ProviderShared.isRecord(event.headers)
-      ? Object.fromEntries(
-          Object.entries(event.headers).filter(
-            (entry): entry is [string, string | number | boolean] =>
-              typeof entry[1] === "string" || typeof entry[1] === "number" || typeof entry[1] === "boolean",
-          ),
-        )
-      : undefined,
-  })
+const asText = (value: unknown) =>
+  typeof value === "string" && value.length > 0 ? value : typeof value === "number" ? String(value) : undefined

 export const Event = Schema.StructWithRest(
  Schema.Struct({
@@ -400,31 +360,18 @@ export const Event = Schema.StructWithRest(
          incomplete_details: optionalNull(Schema.Struct({ reason: Schema.optional(Schema.String) })),
          output: Schema.optional(Schema.Array(StreamItem)),
          usage: optionalNull(OpenResponsesUsage),
-          error: optionalNull(OpenResponsesErrorPayload),
+          error: Schema.optional(Schema.Unknown),
        }),
        [Schema.Record(Schema.String, Schema.Unknown)],
      ),
    ),
-    code: optionalNull(Schema.String),
-    message: Schema.optional(Schema.String),
-    param: optionalNull(Schema.String),
-    error: optionalNull(OpenResponsesErrorPayload),
+    code: Schema.optional(Schema.Unknown),
+    message: Schema.optional(Schema.Unknown),
+    error: Schema.optional(Schema.Unknown),
    status: Schema.optional(Schema.Unknown),
    status_code: Schema.optional(Schema.Unknown),
-    headers: Schema.optional(Schema.Unknown),
  }),
  [Schema.Record(Schema.String, Schema.Unknown)],
-).pipe(
-  Schema.decode({
-    decode: SchemaGetter.transform((event) => {
-      if (event.type !== "error" || event.error != null) return event
-      const { code, message, param, ...rest } = event
-      if (code === undefined && message === undefined && param === undefined) return event
-      // Flat errors (for example, Meta's) can also arrive through generic Responses endpoints.
-      return { ...rest, error: { code, message, param } }
-    }),
-    encode: SchemaGetter.passthrough(),
-  }),
 )
 export type Event = Schema.Schema.Type<typeof Event>
 export type NormalizedEvent = Event & { readonly item?: OutputItem | null }
@@ -433,16 +380,15 @@ const decodeEventValue = Schema.decodeUnknownEffect(Event)
 const decodeFrame = Schema.decodeUnknownEffect(ProviderShared.Json)

 /**
- * Decodes one WebSocket frame. xAI answers a rejected `response.create` with `{ "error": { "message", "type" } }` and no
- * event type; that envelope reads as an error event so the failure classifies instead of failing decoding.
+ * Decodes one WebSocket frame. Some providers and gateways answer a rejected `response.create` with a bare
+ * `{ "error": ... }` envelope and no event type; that reads as an error event so it classifies instead of
+ * failing decoding.
 */
 export const decodeChannelEvent = (frame: string) =>
  decodeFrame(frame).pipe(
    Effect.flatMap((value) =>
      decodeEventValue(
-        ProviderShared.isRecord(value) &&
-          value.type === undefined &&
-          (typeof value.error === "string" || ProviderShared.isRecord(value.error))
+        ProviderShared.isRecord(value) && value.type === undefined && value.error != null
          ? { ...value, type: "error" }
          : value,
      ),
@@ -1422,22 +1368,21 @@ const onResponseFinish = Effect.fn("OpenResponses.onResponseFinish")(function* (
  return [{ ...current, lifecycle }, events] satisfies StepResult
 })

-// Build the prettiest summary available from whatever the provider supplied.
-// When both code and message are present, prefix the code so consumers see
-// the failure mode (e.g. `rate_limit_exceeded: Slow down`) instead of just
-// the bare message — production rate limits and context-length failures used
-// to be indistinguishable from generic stream drops. Returns undefined when
-// the payload carries no usable summary.
-const providerErrorMessage = (event: Event, nested: OpenResponsesErrorPayload | undefined): string | undefined => {
-  const message = event.message || nested?.message || undefined
-  const code = event.code || nested?.code || undefined
-  if (message && code) return `${code}: ${message}`
-  return message || code
+/** Error code and message from wherever the frame put them; top-level fields win over nested ones. */
+export const errorDetail = (event: Event) => {
+  const raw = event.error ?? event.response?.error
+  const nested = typeof raw === "string" ? { message: raw } : ProviderShared.isRecord(raw) ? raw : undefined
+  return {
+    message: asText(event.message) ?? asText(nested?.message),
+    code: asText(event.code) ?? asText(nested?.code),
+  }
 }

+// Prefix the code when both are present (`rate_limit_exceeded: Slow down`) so the failure mode is
+// visible; fall back to the raw frame rather than a generic message when neither decodes.
 export const providerFailure = (event: Event, fallback: string, body = ProviderShared.encodeJson(event)) => {
-  const nested = event.error ?? event.response?.error ?? undefined
-  const summary = providerErrorMessage(event, nested)
+  const detail = errorDetail(event)
+  const summary = detail.message && detail.code ? `${detail.code}: ${detail.message}` : (detail.message ?? detail.code)
  const message = summary ?? (body === "{}" ? fallback : body)
  const status =
    typeof event.status === "number"
@@ -1520,18 +1465,7 @@ export const step = (state: ParserState, event: NormalizedEvent) => {
  if (event.type === "response.output_item.done") return onOutputItemDone(state, event.item)
  if (event.type === "response.completed" || event.type === "response.incomplete") return onResponseFinish(state, event)
  if (event.type === "response.failed") return providerFailure(event, `${state.name} response failed`)
-  if (event.type === "error")
-    return decodeKnownErrorEvent(event).pipe(
-      Effect.mapError((cause) =>
-        ProviderShared.eventError(
-          state.id,
-          `${state.name} returned a malformed error event`,
-          ProviderShared.encodeJson(event),
-          cause,
-        ),
-      ),
-      Effect.flatMap(() => providerFailure(event, `${state.name} stream error`)),
-    )
+  if (event.type === "error") return providerFailure(event, `${state.name} stream error`)
  return Effect.succeed<StepResult>([state, NO_EVENTS])
 }

@@ -38,23 +38,13 @@ export type Settings = ProviderPackage.Settings &

 const fromRequest = Effect.fn("GoogleVertex.fromRequest")(function* (request: LLMRequest) {
  const { serviceTier: _, ...body } = yield* Gemini.protocol.body.from(request)
-  // Vertex's native REST schema rejects `id` on FunctionCall/FunctionResponse parts with HTTP 400,
-  // unlike AI Studio, so history minted there cannot be lowered verbatim.
-  const contents = body.contents.map((content) => ({
-    ...content,
-    parts: (content.parts ?? []).map((part) => {
-      if ("functionCall" in part) return { ...part, functionCall: { ...part.functionCall, id: undefined } }
-      if ("functionResponse" in part) return { ...part, functionResponse: { ...part.functionResponse, id: undefined } }
-      return part
-    }),
-  }))
  const value = request.providerOptions?.labels
  const labels = ProviderShared.isRecord(value)
    ? Object.fromEntries(
        Object.entries(value).filter((entry): entry is [string, string] => typeof entry[1] === "string"),
      )
    : undefined
-  return { ...body, contents, labels }
+  return { ...body, labels }
 })

 const protocol = {
@@ -24,8 +24,10 @@ export * as Moonshot from "./moonshot.js"
 export * as OpenAI from "./openai.js"
 export * as OpenAICompatible from "./openai-compatible.js"
 export * as OpenAICompatibleResponses from "./openai-compatible-responses.js"
+export * as OpenCodeZen from "./opencode-zen.js"
 export * as OpenRouter from "./openrouter.js"
 export * as TogetherAI from "./togetherai.js"
+export * as TypeSafeAI from "./typesafe-ai.js"
 export * as XAI from "./xai.js"
 export * as ZAI from "./zai.js"
 export * as ZAICodingPlan from "./zai-coding-plan.js"
@@ -0,0 +1,31 @@
+import { HttpOptions, ProviderID, type ModelID } from "../schema/index.js"
+import { AuthOptions, type ProviderAuthOption } from "../route/auth-options.js"
+import { SystemOne } from "../experimental/system-one.js"
+
+export const id = ProviderID.make("opencode")
+const baseURL = "https://opencode.ai/zen/v1"
+
+export type Options = ProviderAuthOption<"optional"> & {
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions.Input
+}
+
+export const configure = (input: Options = {}) => {
+  const evaluation = (modelID: string | ModelID) =>
+    SystemOne.model({
+      id: modelID,
+      provider: id,
+      providerMetadataKey: "opencode",
+      auth: AuthOptions.bearer(input, "OPENCODE_API_KEY"),
+      baseURL: input.baseURL ?? baseURL,
+      headers: input.headers,
+      http: input.http === undefined ? undefined : HttpOptions.make(input.http),
+    })
+  return { id, experimental: { evaluation }, configure }
+}
+
+export const provider = configure()
+export const experimental = provider.experimental
+
+export * as OpenCodeZen from "./opencode-zen.js"
@@ -0,0 +1,31 @@
+import { HttpOptions, ProviderID, type ModelID } from "../schema/index.js"
+import { AuthOptions, type ProviderAuthOption } from "../route/auth-options.js"
+import { SystemOne } from "../experimental/system-one.js"
+
+export const id = ProviderID.make("typesafe-ai")
+const baseURL = "https://api.typesafe.ai/v1"
+
+export type Options = ProviderAuthOption<"optional"> & {
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions.Input
+}
+
+export const configure = (input: Options = {}) => {
+  const evaluation = (modelID: string | ModelID) =>
+    SystemOne.model({
+      id: modelID,
+      provider: id,
+      providerMetadataKey: "typesafe",
+      auth: AuthOptions.bearer(input, "TYPESAFE_API_KEY"),
+      baseURL: input.baseURL ?? baseURL,
+      headers: input.headers,
+      http: input.http === undefined ? undefined : HttpOptions.make(input.http),
+    })
+  return { id, experimental: { evaluation }, configure }
+}
+
+export const provider = configure()
+export const experimental = provider.experimental
+
+export * as TypeSafeAI from "./typesafe-ai.js"
@@ -215,7 +215,9 @@ export const fromWebSocket = (
 ): Effect.Effect<WebSocketConnection, AIError> =>
  Effect.gen(function* () {
    yield* waitOpen(ws, input)
-    const messages = yield* Queue.bounded<string | Uint8Array, AIError | Cause.Done<void>>(128)
+    // The socket pushes frames synchronously and cannot be paused, so the hand-off to the consumer
+    // fiber must absorb whole read buffers. Bun delivers over a thousand small frames in one tick.
+    const messages = yield* Queue.unbounded<string | Uint8Array, AIError | Cause.Done<void>>()

    const oversized = (message: string | Uint8Array) =>
      typeof message === "string" ? new Blob([message]).size > MAX_FRAME_BYTES : message.byteLength > MAX_FRAME_BYTES
@@ -238,19 +240,7 @@ export const fromWebSocket = (
    }
    const offer = (message: string | Uint8Array) => {
      if (rejectOversized(message)) return
-      if (Queue.offerUnsafe(messages, message)) return
-      Queue.failCauseUnsafe(
-        messages,
-        Cause.fail(
-          transportError("WebSocket inbound queue overflow", {
-            body: typeof message === "string" ? message : new TextDecoder().decode(message),
-            url: input.url,
-            operation: "read",
-            code: "queue-overflow",
-            phase: "receive",
-          }),
-        ),
-      )
+      Queue.offerUnsafe(messages, message)
    }

    const onMessage = (event: MessageEvent) => {
@@ -0,0 +1,173 @@
+import { describe, expect } from "bun:test"
+import { Effect, Layer } from "effect"
+import { HttpClientRequest } from "effect/unstable/http"
+import { Evaluation, EvaluationClient } from "../src/experimental.js"
+import { OpenCodeZen, TypeSafeAI } from "../src/providers.js"
+import { it } from "./lib/effect.js"
+import { dynamicResponse } from "./lib/http.js"
+
+describe("experimental Evaluation", () => {
+  it.effect("evaluates typed questions through System One", () =>
+    Effect.gen(function* () {
+      const response = yield* Evaluation.run({
+        model: TypeSafeAI.configure({
+          apiKey: "test",
+          baseURL: "https://typesafe.test/v1/",
+          headers: { "x-default": "yes" },
+          http: { body: { deployment: "test" }, query: { api: "v1" } },
+        }).experimental.evaluation("jev-latest"),
+        state: { ticket: "Please refund the duplicate charge." },
+        questions: {
+          department: {
+            type: "choice",
+            instructions: "Which team should handle this?",
+            criteria: { billing: "Payments and refunds", technical: "Bugs and outages" },
+          },
+          urgency: {
+            type: "score",
+            instructions: "How urgent is this?",
+            criteria: ["Can wait", "Needs attention", "Blocking"],
+          },
+          refund: { type: "boolean", instructions: "Is the customer asking for a refund?" },
+        },
+        options: { trace: { enabled: true } },
+        http: { body: { request_metadata: "value" }, headers: { "x-request": "yes" }, query: { trace: "1" } },
+      })
+
+      expect(response.model).toBe("jev-1.13.0")
+      expect(response.answers.department).toEqual({
+        type: "choice",
+        choice: "billing",
+        probabilities: { billing: 0.9, technical: 0.1 },
+      })
+      expect(response.answers.urgency).toEqual({
+        type: "score",
+        score: 1.2,
+        probabilities: { "0": 0, "1": 0.8, "2": 0.2 },
+      })
+      expect(response.answers.refund).toEqual({ type: "boolean", probability: 0.97 })
+      expect(response.usage?.totalTokens).toBe(36)
+      expect(response.providerMetadata).toEqual({
+        typesafe: {
+          confidence: { department: 0.8, urgency: 0.6 },
+          legend: { urgency: { "0": "Can wait", "1": "Needs attention", "2": "Blocking" } },
+        },
+      })
+    }).pipe(
+      Effect.provide(
+        EvaluationClient.layer.pipe(
+          Layer.provide(
+            dynamicResponse((input) =>
+              Effect.gen(function* () {
+                const request = yield* HttpClientRequest.toWeb(input.request).pipe(Effect.orDie)
+                expect(request.url).toBe("https://typesafe.test/v1/systemone?api=v1&trace=1")
+                expect(request.headers.get("authorization")).toBe("Bearer test")
+                expect(request.headers.get("x-default")).toBe("yes")
+                expect(request.headers.get("x-request")).toBe("yes")
+                expect(JSON.parse(input.text)).toEqual({
+                  deployment: "test",
+                  request_metadata: "value",
+                  trace: { enabled: true },
+                  model: "jev-latest",
+                  state: { ticket: "Please refund the duplicate charge." },
+                  questions: {
+                    department: {
+                      type: "choice",
+                      instructions: "Which team should handle this?",
+                      criteria: { billing: "Payments and refunds", technical: "Bugs and outages" },
+                    },
+                    urgency: {
+                      type: "score",
+                      instructions: "How urgent is this?",
+                      criteria: ["Can wait", "Needs attention", "Blocking"],
+                    },
+                    refund: { type: "noul", instructions: "Is the customer asking for a refund?" },
+                  },
+                })
+                return input.respond(
+                  JSON.stringify({
+                    model: "jev-1.13.0",
+                    answers: {
+                      department: {
+                        type: "choice",
+                        choice: "billing",
+                        probabilities: { billing: 0.9, technical: 0.1 },
+                        confidence: 0.8,
+                      },
+                      urgency: {
+                        type: "score",
+                        score: 1.2,
+                        probabilities: { "0": 0, "1": 0.8, "2": 0.2 },
+                        legend: { "0": "Can wait", "1": "Needs attention", "2": "Blocking" },
+                        confidence: 0.6,
+                      },
+                      refund: { type: "noul", noul: 0.97 },
+                    },
+                    usage: { input_tokens: 30, output_tokens: 6 },
+                  }),
+                  { headers: { "content-type": "application/json" } },
+                )
+              }),
+            ),
+          ),
+        ),
+      ),
+    ),
+  )
+
+  it.effect("configures the OpenCode Zen System One endpoint", () =>
+    Evaluation.run({
+      model: OpenCodeZen.configure({ apiKey: "zen-key", baseURL: "https://zen.test/v1" }).experimental.evaluation(
+        "jev-1.13",
+      ),
+      state: "hello",
+      questions: { greeting: { type: "boolean", instructions: "Is this a greeting?" } },
+    }).pipe(
+      Effect.tap((response) =>
+        Effect.sync(() => {
+          expect(response.answers.greeting.probability).toBe(0.99)
+          expect(response.usage?.providerMetadata).toEqual({
+            opencode: { input_tokens: 10, output_tokens: 2 },
+          })
+        }),
+      ),
+      Effect.provide(
+        EvaluationClient.layer.pipe(
+          Layer.provide(
+            dynamicResponse((input) => {
+              expect(input.request.url).toBe("https://zen.test/v1/systemone")
+              expect(input.request.headers.authorization).toBe("Bearer zen-key")
+              return Effect.succeed(
+                input.respond(
+                  JSON.stringify({
+                    model: "jev-1.13.0",
+                    answers: { greeting: { type: "noul", noul: 0.99 } },
+                    usage: { input_tokens: 10, output_tokens: 2 },
+                  }),
+                  { headers: { "content-type": "application/json" } },
+                ),
+              )
+            }),
+          ),
+        ),
+      ),
+    ),
+  )
+
+  it.effect("rejects malformed questions before network I/O", () =>
+    Effect.gen(function* () {
+      const error = yield* Evaluation.run({
+        model: TypeSafeAI.experimental.evaluation("jev-latest"),
+        state: "hello",
+        questions: { score: { type: "score", instructions: "How much?", criteria: ["only"] } },
+      }).pipe(Effect.flip)
+      expect(error.reason._tag).toBe("InvalidRequest")
+    }).pipe(
+      Effect.provide(
+        EvaluationClient.layer.pipe(
+          Layer.provide(dynamicResponse(() => Effect.die("invalid evaluation reached the network"))),
+        ),
+      ),
+    ),
+  )
+})
@@ -0,0 +1,60 @@
+import { Effect } from "effect"
+import { Evaluation, EvaluationClient, EvaluationModel, type EvaluationRoute } from "../src/experimental.js"
+import type { Service } from "../src/experimental/evaluation-client.js"
+import { OpenCodeZen, TypeSafeAI } from "../src/providers.js"
+
+type Requirements<T> = T extends Effect.Effect<infer _A, infer _E, infer R> ? R : never
+type Success<T> = T extends Effect.Effect<infer A, infer _E, infer _R> ? A : never
+type Equal<A, B> = [A, B] extends [B, A] ? true : false
+type Assert<T extends true> = T
+
+const model = TypeSafeAI.configure({ apiKey: "test" }).experimental.evaluation("jev-latest")
+const request = Evaluation.request({
+  model,
+  state: { ticket: "refund" },
+  questions: {
+    topic: {
+      type: "choice",
+      instructions: "Which team?",
+      criteria: { billing: null, support: { includes: ["help"] } },
+    },
+    severity: { type: "score", instructions: "How severe?", criteria: ["Low", "High"] },
+    refund: { type: "boolean", instructions: "Refund?" },
+  },
+})
+
+const result = EvaluationClient.evaluate(request)
+type Result = Success<typeof result>
+type Choice = Assert<Equal<Result["answers"]["topic"]["choice"], "billing" | "support">>
+type ClientRequirements = Assert<Equal<Requirements<typeof result>, Service>>
+void (true satisfies Choice)
+void (true satisfies ClientRequirements)
+
+Effect.gen(function* () {
+  const response = yield* Evaluation.run({
+    model: OpenCodeZen.experimental.evaluation("jev-1.13"),
+    state: ["hello"],
+    questions: { greeting: { type: "boolean", instructions: "Greeting?" } },
+  })
+  response.answers.greeting.probability satisfies number
+  // @ts-expect-error Boolean answers do not contain a selected choice.
+  response.answers.greeting.choice
+  // @ts-expect-error Unknown question IDs are not exposed.
+  response.answers.missing
+})
+
+declare const route: EvaluationRoute<{ readonly temperature?: number }>
+const custom = EvaluationModel.make({ id: "custom", provider: "custom", route })
+Evaluation.run({
+  model: custom,
+  state: "hello",
+  questions: { ok: { type: "boolean", instructions: "OK?" } },
+  options: { temperature: 0.5 },
+})
+// @ts-expect-error Selected evaluation models retain their request option types.
+Evaluation.run({
+  model: custom,
+  state: "hello",
+  questions: { ok: { type: "boolean", instructions: "OK?" } },
+  options: { temperature: "high" },
+})
@@ -8,9 +8,11 @@ import {
  CloudflareWorkersAI,
  DeepSeek,
  Fireworks,
+  OpenCodeZen,
  OpenAI,
  OpenAICompatible,
  OpenRouter,
+  TypeSafeAI,
  XAI,
 } from "@opencode/ai/providers"
 import {
@@ -23,6 +25,7 @@ import {
 } from "@opencode/ai/protocols"
 import * as AnthropicMessages from "@opencode/ai/protocols/anthropic-messages"
 import { TestLLM } from "@opencode/ai/testing"
+import { Evaluation, EvaluationClient } from "@opencode/ai/experimental"

 describe("public exports", () => {
  test("root exposes app-facing runtime APIs", () => {
@@ -37,6 +40,9 @@ describe("public exports", () => {
    expect(TestLLM.layer).toBeFunction()
    expect(TestLLM.testLayer).toBeFunction()
    expect(TestLLM.Test.of).toBeFunction()
+    expect(Evaluation.run).toBeFunction()
+    expect(EvaluationClient.layer).toBeDefined()
+    expect(EvaluationClient.fetchLayer).toBeDefined()
  })

  test("route barrel exposes route-authoring APIs", () => {
@@ -66,6 +72,8 @@ describe("public exports", () => {
    expect(CloudflareWorkersAI.configure).toBeFunction()
    expect(CloudflareWorkersAI.configure({ accountId: "fixture", apiKey: "fixture" }).model).toBeFunction()
    expect(OpenRouter.model).toBeFunction()
+    expect(TypeSafeAI.experimental.evaluation).toBeFunction()
+    expect(OpenCodeZen.experimental.evaluation).toBeFunction()
    expect(XAI.model).toBeFunction()
    expect(XAI.provider.responses).toBe(XAI.responses)
    expect(XAI.provider.chat).toBe(XAI.chat)
@@ -1,9 +1,13 @@
 {
  "version": 1,
  "metadata": {
-    "tags": ["prefix:google-vertex", "provider:google-vertex", "protocol:gemini"],
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
    "name": "google-vertex/calls-a-tool",
-    "recordedAt": "2026-08-23T17:21:51.036Z"
+    "recordedAt": "2026-09-22T03:46:29.725Z"
  },
  "interactions": [
    {
@@ -21,7 +25,7 @@
        "headers": {
          "content-type": "text/event-stream"
        },
-        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"functionCall\": {\"name\": \"lookup_weather\",\"args\": {\"city\": \"Paris\"},\"id\": \"call_425130\"},\"thoughtSignature\": \"AY89a1+1fXnLgYhHMuN3Ak6LBhT6PcrYOW7iPav4LfsacvG/Z6l1yJ+AsU7vWhFj/JyPIbsJJQ+GjohM9sCIZ6nqUOIg3reo/7osmrCvFrVHedTHQcwiPzoz2Kp3gb+uWjFAXxk1EX4IRAKcu0ox1W/Z9PpuZvHkTerGO2a82e02N6MAF1YhhtbXFvSdqLRih2Os68rdOk5/Bcld7ol8qUgeyIZ3CtI3OJ5jwRcD8LjvK33A7ZFzH5Bxp/peUmXvqnu5iNhnGBxZaJy/vupCtxRZxjaS+ojG0/UhyrnRiKIpbzQ0FBkxePPn8GCX/LOe2y3GUc98co8lN8OOuCd9ZmEdx5AjHmQkPO9fAV9SxG6Bda6SDWVL8o/Uz3WSQYoUEfAdoajEWIBvcisoeCJjb7zgmRRZ9VQSPl3RXj5LFRvX8jn0YKV1CahYbc24jA==\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:50.308576Z\",\"responseId\": \"LiyLauDqErCErb8Pj8aWkAs\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 39,\"candidatesTokenCount\": 16,\"totalTokenCount\": 102,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 39}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 16}],\"thoughtsTokenCount\": 47},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:50.308576Z\",\"responseId\": \"LiyLauDqErCErb8Pj8aWkAs\"}\r\n\r\n"
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"functionCall\": {\"name\": \"lookup_weather\",\"args\": {\"city\": \"Paris\"},\"id\": \"call_28936\"},\"thoughtSignature\": \"AY89a1/MVeBxtwu9l/96clFobOrrd7Q5MTf5o8/A22fc++1EsFYVeCFx9WCGmJ+D3yW3FWlRXKtJECYfprSoxixCSOYBNiV9g8/IkejbAxF26k1vxTsHkoqts0O2s8GqqBSRAavJfKQ/taTRbPuIq+b+RKZ8SDJFoWDnFjXpdS5S164uJTjmgs4ALd8oB1oQRycMsTbAY51TmkcNUnhARpjKQfqiizz4KfSRFjx7xDnza0v4jj73m2GV86eLDhVT7trIT+Dl5DsJt6RBLOE2Amse54mcpIbsYaANlY1YDU6FKuUBqnuwpl0OfhMXwWuYMogv1tH/0rTXsqNwmHyt/b9ZZXqYCdFXpMGt8udmoZ0d\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:28.953809Z\",\"responseId\": \"FPqxatGbOsSorb8PtY2z8Q4\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 39,\"candidatesTokenCount\": 16,\"totalTokenCount\": 93,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 39}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 16}],\"thoughtsTokenCount\": 38},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:28.953809Z\",\"responseId\": \"FPqxatGbOsSorb8PtY2z8Q4\"}\r\n\r\n"
      }
    }
  ]
@@ -1,9 +1,13 @@
 {
  "version": 1,
  "metadata": {
-    "tags": ["prefix:google-vertex", "provider:google-vertex", "protocol:gemini"],
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
    "name": "google-vertex/continues-after-a-tool-result",
-    "recordedAt": "2026-08-23T17:21:51.853Z"
+    "recordedAt": "2026-09-22T03:46:30.691Z"
  },
  "interactions": [
    {
@@ -14,14 +18,14 @@
        "headers": {
          "content-type": "application/json"
        },
-        "body": "{\"contents\":[{\"role\":\"user\",\"parts\":[{\"text\":\"What is the weather in Paris?\"}]},{\"role\":\"model\",\"parts\":[{\"functionCall\":{\"name\":\"lookup_weather\",\"args\":{\"city\":\"Paris\"}},\"thoughtSignature\":\"skip_thought_signature_validator\"}]},{\"role\":\"user\",\"parts\":[{\"functionResponse\":{\"name\":\"lookup_weather\",\"response\":{\"name\":\"lookup_weather\",\"content\":\"18C, light rain\"}}}]}],\"tools\":[{\"functionDeclarations\":[{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"required\":[\"city\"],\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}}}}]}]}"
+        "body": "{\"contents\":[{\"role\":\"user\",\"parts\":[{\"text\":\"What is the weather in Paris?\"}]},{\"role\":\"model\",\"parts\":[{\"functionCall\":{\"id\":\"call_paris_1\",\"name\":\"lookup_weather\",\"args\":{\"city\":\"Paris\"}},\"thoughtSignature\":\"skip_thought_signature_validator\"}]},{\"role\":\"user\",\"parts\":[{\"functionResponse\":{\"id\":\"call_paris_1\",\"name\":\"lookup_weather\",\"response\":{\"name\":\"lookup_weather\",\"content\":\"18C, light rain\"}}}]}],\"tools\":[{\"functionDeclarations\":[{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"required\":[\"city\"],\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}}}}]}]}"
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream"
        },
-        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"The weather in Paris is currently 18°C with light rain.\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:51.220919Z\",\"responseId\": \"LyyLave9DbWnrb8P1IjLmQQ\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"AY89a197c+fpHJftPtcufnqMAyoRQKVEQK+KeG+RVHVx2wKil3L4jP4YWvfVbcuOFr2jio4Kre/hCrDANAoMFSvaZrdaPeo1b5bXQSmJKMH03yM5M6q6ME6JiBvXym143U4exIde4UbOh2tMeyXMvB3aWxcavIHd78g5G5QPLreo6A3LO5871cYYVeRwteY+/zbEdqfaAq1hlk6WYpWkNljYpjMyKwr15YC8rFLh3HYayS9tTN++GGrk/reZn6C3OEPlzPou/pXRATzcEAGVl/TW\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 59,\"candidatesTokenCount\": 15,\"totalTokenCount\": 98,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 59}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 15}],\"thoughtsTokenCount\": 24},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:51.220919Z\",\"responseId\": \"LyyLave9DbWnrb8P1IjLmQQ\"}\r\n\r\n"
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"The weather\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:29.830958Z\",\"responseId\": \"Ffqxau7bMoCOrb8P_Iu5sA0\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \" in Paris is currently 18°C with light rain.\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:29.830958Z\",\"responseId\": \"Ffqxau7bMoCOrb8P_Iu5sA0\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"AY89a18aVI8Uxr2VaOI822u0DyuQdy4B00uhLnjqYb5Qb6Mkscccm018knLtYThB5UX8dRv1VFsORSQ0Qo6Gx9RCng2AK9EPce7p\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 59,\"candidatesTokenCount\": 15,\"totalTokenCount\": 74,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 59}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 15}]},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:29.830958Z\",\"responseId\": \"Ffqxau7bMoCOrb8P_Iu5sA0\"}\r\n\r\n"
      }
    }
  ]
@@ -1,9 +1,13 @@
 {
  "version": 1,
  "metadata": {
-    "tags": ["prefix:google-vertex", "provider:google-vertex", "protocol:gemini"],
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
    "name": "google-vertex/streams-text",
-    "recordedAt": "2026-08-23T17:21:50.112Z"
+    "recordedAt": "2026-09-22T03:46:28.840Z"
  },
  "interactions": [
    {
@@ -21,7 +25,7 @@
        "headers": {
          "content-type": "text/event-stream"
        },
-        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"Hello\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:48.528714Z\",\"responseId\": \"LCyLasqiIO6crb8P1sDboQc\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"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\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 7,\"candidatesTokenCount\": 1,\"totalTokenCount\": 150,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 7}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 1}],\"thoughtsTokenCount\": 142},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:48.528714Z\",\"responseId\": \"LCyLasqiIO6crb8P1sDboQc\"}\r\n\r\n"
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"Hello\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:26.748531Z\",\"responseId\": \"EvqxavPXLbqerb8P1eSViQs\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"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\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 7,\"candidatesTokenCount\": 1,\"totalTokenCount\": 285,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 7}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 1}],\"thoughtsTokenCount\": 277},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-09-22T03:46:26.748531Z\",\"responseId\": \"EvqxavPXLbqerb8P1eSViQs\"}\r\n\r\n"
      }
    }
  ]
@@ -0,0 +1,33 @@
+{
+  "version": 1,
+  "metadata": {
+    "model": "jev-1.13-free",
+    "tags": [
+      "prefix:opencode-zen-evaluation",
+      "provider:opencode",
+      "protocol:system-one"
+    ],
+    "name": "opencode-zen-evaluation/evaluates-choice-score-and-boolean-questions",
+    "recordedAt": "2026-09-22T03:44:57.511Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://opencode.ai/zen/v1/systemone",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"jev-1.13-free\",\"state\":\"I was charged twice for the same invoice. Please refund the duplicate payment today.\",\"questions\":{\"department\":{\"type\":\"choice\",\"instructions\":\"Which team should handle this support request?\",\"criteria\":{\"billing\":\"Payments, invoices, refunds, or failed charges\",\"technical\":\"Bugs, outages, or integrations\",\"sales\":\"Pricing, upgrades, or new accounts\"}},\"urgency\":{\"type\":\"score\",\"instructions\":\"How urgent is this support request?\",\"criteria\":[\"Can wait for normal support\",\"Needs prompt attention\",\"Actively blocking revenue\"]},\"refund\":{\"type\":\"noul\",\"instructions\":\"Is the customer asking for a refund?\"}}}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"jev-1.13-free\",\"answers\":{\"department\":{\"type\":\"choice\",\"choice\":\"billing\",\"confidence\":1,\"probabilities\":{\"technical\":0,\"sales\":0,\"billing\":1}},\"urgency\":{\"type\":\"score\",\"score\":1.02,\"confidence\":0.95,\"legend\":{\"0\":\"Can wait for normal support\",\"1\":\"Needs prompt attention\",\"2\":\"Actively blocking revenue\"},\"probabilities\":{\"0\":0,\"1\":0.97,\"2\":0.03}},\"refund\":{\"type\":\"noul\",\"noul\":0.99}},\"usage\":{\"input_tokens\":422,\"output_tokens\":69}}"
+      }
+    }
+  ]
+}
@@ -0,0 +1,33 @@
+{
+  "version": 1,
+  "metadata": {
+    "model": "jev-latest",
+    "tags": [
+      "prefix:typesafe-evaluation",
+      "provider:typesafe-ai",
+      "protocol:system-one"
+    ],
+    "name": "typesafe-evaluation/evaluates-choice-score-and-boolean-questions",
+    "recordedAt": "2026-09-22T03:44:28.626Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.typesafe.ai/v1/systemone",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"jev-latest\",\"state\":\"I was charged twice for the same invoice. Please refund the duplicate payment today.\",\"questions\":{\"department\":{\"type\":\"choice\",\"instructions\":\"Which team should handle this support request?\",\"criteria\":{\"billing\":\"Payments, invoices, refunds, or failed charges\",\"technical\":\"Bugs, outages, or integrations\",\"sales\":\"Pricing, upgrades, or new accounts\"}},\"urgency\":{\"type\":\"score\",\"instructions\":\"How urgent is this support request?\",\"criteria\":[\"Can wait for normal support\",\"Needs prompt attention\",\"Actively blocking revenue\"]},\"refund\":{\"type\":\"noul\",\"instructions\":\"Is the customer asking for a refund?\"}}}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"jev-1.13.0\",\"answers\":{\"department\":{\"type\":\"choice\",\"choice\":\"billing\",\"confidence\":1.0,\"probabilities\":{\"billing\":1.0,\"sales\":0.0,\"technical\":0.0}},\"urgency\":{\"type\":\"score\",\"score\":1.01,\"confidence\":0.97,\"legend\":{\"0\":\"Can wait for normal support\",\"1\":\"Needs prompt attention\",\"2\":\"Actively blocking revenue\"},\"probabilities\":{\"0\":0.0,\"1\":0.98,\"2\":0.02}},\"refund\":{\"type\":\"noul\",\"noul\":0.99}},\"usage\":{\"input_tokens\":422,\"output_tokens\":69}}"
+      }
+    }
+  ]
+}
@@ -4,6 +4,22 @@ import { Anthropic } from "../../src/providers.js"
 const model = Anthropic.provider.model("claude-sonnet-4-5")

 LLM.request({ model, prompt: "Hello", providerOptions: { thinking: { type: "adaptive" } } })
+LLM.request({
+  model,
+  prompt: "Hello",
+  providerOptions: {
+    serviceTier: "future-tier",
+    thinking: { type: "adaptive", display: "future-display" },
+  },
+})
+LLM.request({
+  model,
+  prompt: "Hello",
+  providerOptions: {
+    // @ts-expect-error Anthropic cache TTL values are protocol constraints.
+    cacheControl: { type: "ephemeral", ttl: "future-ttl" },
+  },
+})

 LLM.request({
  model,
@@ -215,13 +215,31 @@ describe("Anthropic Messages route", () => {
    }),
  )

+  it.effect("forwards unknown values for pass-through string enums", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLMRequest.update(request, {
+          providerOptions: {
+            service_tier: "future-tier",
+            thinking: { type: "adaptive", display: "future-display" },
+          },
+        }),
+      )
+
+      expect(prepared.body).toMatchObject({
+        service_tier: "future-tier",
+        thinking: { type: "adaptive", display: "future-display" },
+      })
+    }),
+  )
+
  it.effect("ignores unknown provider options and rejects malformed known ones", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(LLMRequest.update(request, { providerOptions: { unknownOption: true } }))
      const malformed = [
-        { service_tier: "fast" },
+        { service_tier: 1 },
        { metadata: { user_id: 42 } },
-        { cache_control: { type: "ephemeral", ttl: "2h" } },
+        { cache_control: { type: "ephemeral", ttl: "future-ttl" } },
        { output_config: { format: { type: "text" } } },
        { thinking: { type: "automatic" } },
      ]
@@ -0,0 +1,79 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { Evaluation } from "../../src/experimental.js"
+import { OpenCodeZen, TypeSafeAI } from "../../src/providers.js"
+import { recordedTests } from "../recorded-test.js"
+
+const questions = {
+  department: {
+    type: "choice",
+    instructions: "Which team should handle this support request?",
+    criteria: {
+      billing: "Payments, invoices, refunds, or failed charges",
+      technical: "Bugs, outages, or integrations",
+      sales: "Pricing, upgrades, or new accounts",
+    },
+  },
+  urgency: {
+    type: "score",
+    instructions: "How urgent is this support request?",
+    criteria: ["Can wait for normal support", "Needs prompt attention", "Actively blocking revenue"],
+  },
+  refund: { type: "boolean", instructions: "Is the customer asking for a refund?" },
+} as const
+
+const state = "I was charged twice for the same invoice. Please refund the duplicate payment today."
+
+const typesafe = recordedTests({
+  prefix: "typesafe-evaluation",
+  provider: "typesafe-ai",
+  protocol: "system-one",
+  requires: ["TYPESAFE_API_KEY"],
+  metadata: { model: "jev-latest" },
+})
+
+const zen = recordedTests({
+  prefix: "opencode-zen-evaluation",
+  provider: "opencode",
+  protocol: "system-one",
+  requires: ["OPENCODE_API_KEY"],
+  metadata: { model: "jev-1.13-free" },
+})
+
+describe("experimental Evaluation recorded", () => {
+  typesafe.effect("evaluates choice score and boolean questions", () =>
+    assertEvaluation(
+      TypeSafeAI.configure({ apiKey: process.env.TYPESAFE_API_KEY ?? "fixture" }).experimental.evaluation("jev-latest"),
+      "typesafe",
+    ),
+  )
+
+  zen.effect("evaluates choice score and boolean questions", () =>
+    assertEvaluation(
+      OpenCodeZen.configure({ apiKey: process.env.OPENCODE_API_KEY ?? "fixture" }).experimental.evaluation(
+        "jev-1.13-free",
+      ),
+      "opencode",
+    ),
+  )
+})
+
+const assertEvaluation = (
+  model: ReturnType<typeof TypeSafeAI.experimental.evaluation>,
+  metadataKey: "typesafe" | "opencode",
+) =>
+  Effect.gen(function* () {
+    const response = yield* Evaluation.run({ model, state, questions })
+    expect(response.model).toStartWith("jev-")
+    expect(response.answers.department.type).toBe("choice")
+    expect(response.answers.department.choice).toBe("billing")
+    expect(response.answers.department.probabilities?.billing).toBeGreaterThan(0.5)
+    expect(response.answers.urgency.type).toBe("score")
+    expect(response.answers.urgency.score).toBeGreaterThanOrEqual(0)
+    expect(response.answers.urgency.score).toBeLessThanOrEqual(2)
+    expect(response.answers.refund.type).toBe("boolean")
+    expect(response.answers.refund.probability).toBeGreaterThan(0.5)
+    expect(response.usage?.inputTokens).toBeGreaterThan(0)
+    expect(response.usage?.outputTokens).toBeGreaterThan(0)
+    expect(response.providerMetadata?.[metadataKey]?.confidence).toBeDefined()
+  })
@@ -114,7 +114,7 @@ describe("Google Vertex providers", () => {
    }),
  )

-  it.effect("strips function call ids Vertex does not accept from lowered bodies", () =>
+  it.effect("preserves function call ids in lowered Vertex bodies", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
        LLM.request({
@@ -142,15 +142,14 @@ describe("Google Vertex providers", () => {
        }),
      )

-      expect(JSON.stringify(prepared.body.contents)).not.toContain('"id"')
      expect(prepared.body.contents).toMatchObject([
-        { role: "model", parts: [{ functionCall: { id: undefined, name: "lookup", args: { query: "weather" } } }] },
+        { role: "model", parts: [{ functionCall: { id: "call_1", name: "lookup", args: { query: "weather" } } }] },
        {
          role: "user",
          parts: [
            {
              functionResponse: {
-                id: undefined,
+                id: "call_1",
                name: "lookup",
                response: { name: "lookup", content: "sunny" },
              },
@@ -235,12 +234,23 @@ describe("Google Vertex providers", () => {
          parts: [
            { text: "Thinking.", thought: true, thoughtSignature: "reasoning_sig" },
            { text: "Checking.", thoughtSignature: "text_sig" },
-            { functionCall: { name: "lookup", args: { query: "weather" } }, thoughtSignature: "tool_sig" },
+            {
+              functionCall: { id: "provider_call_1", name: "lookup", args: { query: "weather" } },
+              thoughtSignature: "tool_sig",
+            },
          ],
        },
        {
          role: "user",
-          parts: [{ functionResponse: { name: "lookup", response: { name: "lookup", content: "sunny" } } }],
+          parts: [
+            {
+              functionResponse: {
+                id: "provider_call_1",
+                name: "lookup",
+                response: { name: "lookup", content: "sunny" },
+              },
+            },
+          ],
        },
      ])
    }),
@@ -11,66 +11,78 @@ import { sseEvents } from "../lib/sse.js"

 const decodeEvent = Schema.decodeUnknownEffect(OpenResponses.protocol.stream.event)

-it.effect("normalizes flat errors in shared SSE and WebSocket decoding", () =>
+it.effect("decodes error frames verbatim in shared SSE and WebSocket decoding", () =>
  Effect.gen(function* () {
-    const frame = {
-      type: "error",
-      sequence_number: 4,
-      code: "server_shutting_down",
-      message: "Server is shutting down. Please retry your request.",
-      param: null,
-    }
    for (const decode of [decodeEvent, OpenResponses.decodeChannelEvent]) {
-      const event = yield* decode(JSON.stringify(frame))
-      expect(event).toEqual({
-        type: "error",
-        sequence_number: 4,
-        error: { code: frame.code, message: frame.message, param: null },
-      })
-
-      for (const unchanged of [
-        event,
+      for (const frame of [
+        { type: "error", sequence_number: 4, code: "server_shutting_down", message: "Shutting down", param: null },
        { type: "error" },
+        { type: "error", error: "Gateway failed" },
+        { type: "error", error: { code: 429, message: "slow down" } },
+        { type: "error", error: 42 },
+        { type: "error", code: 500, message: ["not", "a", "string"] },
+        { type: "response.failed", response: { id: "resp_failed", error: "Gateway failed" } },
+        { type: "response.failed", response: { id: "resp_failed", error: ["weird"] } },
        {
          type: "response.failed",
          response: { id: "resp_failed", error: { code: "server_error", message: "Internal server error" } },
        },
        { type: "response.output_text.delta", item_id: "msg_text", delta: "Hello" },
      ]) {
-        expect(yield* decode(JSON.stringify(unchanged))).toEqual(unchanged)
+        expect(yield* decode(JSON.stringify(frame))).toEqual(frame)
      }
    }
  }),
 )

-it.effect("continues to normalize untyped xAI WebSocket errors", () =>
+it.effect("reads bare WebSocket error envelopes as error events", () =>
  Effect.gen(function* () {
    const message = "gRPC error: Response with id=resp_missing not found"
-    for (const error of [{ type: "api_error", message }, message]) {
-      expect(yield* OpenResponses.decodeChannelEvent(JSON.stringify({ error }))).toEqual({
-        type: "error",
-        error: typeof error === "string" ? { message } : error,
-      })
+    for (const error of [{ type: "api_error", message }, message, 42]) {
+      expect(yield* OpenResponses.decodeChannelEvent(JSON.stringify({ error }))).toEqual({ type: "error", error })
+    }
+    for (const frame of [{ error: null }, { message }]) {
+      expect(yield* OpenResponses.decodeChannelEvent(JSON.stringify(frame)).pipe(Effect.flip)).toBeDefined()
    }
  }),
 )

-it.effect("normalizes string errors in shared SSE and WebSocket decoding", () =>
+it.effect("extracts error details from every shape and falls back to the raw frame", () =>
  Effect.gen(function* () {
-    for (const decode of [decodeEvent, OpenResponses.decodeChannelEvent]) {
-      expect(yield* decode(JSON.stringify({ type: "error", error: "Gateway failed" }))).toEqual({
-        type: "error",
-        error: { message: "Gateway failed" },
-      })
-      expect(
-        yield* decode(
-          JSON.stringify({ type: "response.failed", response: { id: "resp_failed", error: "Gateway failed" } }),
-        ),
-      ).toEqual({
-        type: "response.failed",
-        response: { id: "resp_failed", error: { message: "Gateway failed" } },
-      })
+    const cases: Array<[frame: Record<string, unknown>, message: string, tag: string]> = [
+      [
+        { type: "error", code: "server_shutting_down", message: "Shutting down" },
+        "server_shutting_down: Shutting down",
+        "UnknownProvider",
+      ],
+      [{ type: "error", error: "Gateway failed" }, "Gateway failed", "UnknownProvider"],
+      [{ type: "error", error: { code: 429, message: "slow down" } }, "429: slow down", "UnknownProvider"],
+      [{ type: "error", error: { message: "slow down" }, status: 429 }, "slow down", "RateLimit"],
+      [{ type: "error", code: 500, message: ["not", "a", "string"] }, "500", "UnknownProvider"],
+      [
+        { type: "response.failed", response: { id: "resp_failed", error: "Gateway failed" } },
+        "Gateway failed",
+        "UnknownProvider",
+      ],
+    ]
+    for (const [frame, message, tag] of cases) {
+      const event = yield* OpenResponses.decodeChannelEvent(JSON.stringify(frame))
+      const error = OpenResponses.providerFailure(event, "fallback", JSON.stringify(frame))
+      expect(error.message).toBe(message)
+      expect(error.reason._tag).toBe(tag)
+      expect(error.reason.body).toBe(JSON.stringify(frame))
    }
+    for (const frame of [
+      { type: "error", error: 42 },
+      { type: "response.failed", response: { id: "resp_failed", error: ["weird"] } },
+    ]) {
+      const event = yield* OpenResponses.decodeChannelEvent(JSON.stringify(frame))
+      const error = OpenResponses.providerFailure(event, "fallback", JSON.stringify(frame))
+      expect(error.message).toBe(JSON.stringify(frame))
+      expect(error.reason._tag).toBe("UnknownProvider")
+    }
+    expect(OpenResponses.providerFailure({ type: "error" }, "fallback", "{}").message).toBe("fallback")
+    expect(OpenResponses.providerFailure({ type: "error" }, "fallback", "{}").reason._tag).toBe("ProviderInternal")
  }),
 )

@@ -6,6 +6,8 @@ import * as path from "node:path"
 import { fileURLToPath } from "node:url"
 import { LLMClient, RequestExecutor } from "../src/route.js"
 import { ImageClient } from "../src/image-client.js"
+import { EvaluationClient } from "../src/experimental/evaluation-client.js"
+import type { Service as EvaluationClientService } from "../src/experimental/evaluation-client.js"
 import type { Service as ImageClientService } from "../src/image-client.js"
 import type { Service as LLMClientService } from "../src/route/client.js"
 import type { Service as RequestExecutorService } from "../src/route/executor.js"
@@ -18,7 +20,12 @@ import {
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
 const FIXTURES_DIR = path.resolve(__dirname, "fixtures", "recordings")

-type RecordedEnv = RequestExecutorService | LLMClientService | ImageClientService | Socket.WebSocketConstructor
+type RecordedEnv =
+  | RequestExecutorService
+  | LLMClientService
+  | ImageClientService
+  | EvaluationClientService
+  | Socket.WebSocketConstructor

 type RecordedTestsOptions = RecordedGroupOptions & {
  readonly options?: HttpRecorder.RecorderOptions
@@ -92,6 +99,7 @@ export const recordedTests = (options: RecordedTestsOptions) =>
        requestExecutor,
        LLMClient.layer.pipe(Layer.provide(requestExecutor)),
        ImageClient.layer.pipe(Layer.provide(requestExecutor)),
+        EvaluationClient.layer.pipe(Layer.provide(requestExecutor)),
        webSocket,
      )
    },
@@ -95,7 +95,7 @@ In Vite development mode, `origin` uses `VITE_OPENCODE_SERVER_HOST` / `VITE_OPEN
 from storage. Desktop provides the local server it discovers or starts through native initialization.

 With no configured servers, the app shows a full-screen connection form. Enter a server address and password,
-or choose **Scan QR code** to open the camera and read the JSON pairing code from `opencode pair`.
+or choose **Scan QR code** to open the camera and read the pairing code from `opencode pair`.
 Scanning fills the form and immediately attempts to connect. Failed connections leave the details available
 to edit and retry with **Connect**. Credentials are checked before saving the server. Camera access requires
 HTTPS (or localhost) and browser permission. Saved offline servers continue to use the normal app UI.
@@ -103,7 +103,7 @@ HTTPS (or localhost) and browser permission. Saved offline servers continue to u
 When the service is exposed through an HTTPS reverse proxy, advertise its external address at runtime:

 ```bash
-opencode pair --url https://your-machine.your-tailnet.ts.net
+opencode pair --url https://opencode.example.com
 ```

 This replaces the addresses printed and encoded in the QR code while retaining the local service password.
@@ -19,6 +19,13 @@ export function mountBrowserPane() {
      session: "Alpha",
      mounted: true,
      visible: true,
+      url: undefined as string | undefined,
+      loading: false,
+      generation: 0,
+      delayNavigation: false,
+      pendingURL: undefined as string | undefined,
+      loadErrors: {} as Record<string, string | undefined>,
+      error: undefined as string | undefined,
      layouts: {} as Record<string, BrowserPaneLayout | undefined>,
    })
    const tabs = ["Alpha", "Beta"].map((name) => ({
@@ -47,13 +54,33 @@ export function mountBrowserPane() {
      opened: () => !!registrations.get(store.session),
      state: () => ({ tabs: tabs.filter((tab) => tab.title === store.session), focusedTabID: null }),
      tabs: () => tabs.filter((tab) => tab.title === store.session),
-      active: () => tabs.find((tab) => tab.title === store.session) ?? tabs[0],
+      active: () => {
+        const tab = tabs.find((tab) => tab.title === store.session) ?? tabs[0]
+        return {
+          ...tab,
+          url: store.url ?? tab.url,
+          loading: store.loading,
+          generation: store.generation,
+          loadError: store.loadErrors[store.session],
+        }
+      },
      registration: () => registrations.get(store.session),
-      error: () => undefined,
+      error: () => store.error ?? (store.loadErrors[store.session] ? "Request failed" : undefined),
      suspended: () => false,
      close: () => undefined,
      open: () => undefined,
-      command: () => undefined,
+      command: (command) => {
+        setStore("error", undefined)
+        if (command.type === "navigate" || command.type === "reload") setStore("loadErrors", store.session, undefined)
+        if (command.type === "navigate") {
+          if (store.delayNavigation) {
+            setStore("pendingURL", command.url)
+            return
+          }
+          setStore({ url: command.url, loading: false, generation: store.generation + 1 })
+        }
+        if (command.type === "stop") setStore("loading", false)
+      },
    }
    return (
      <>
@@ -64,6 +91,32 @@ export function mountBrowserPane() {
            {(name) => <button onClick={() => setStore({ session: name, mounted: name !== "Empty" })}>{name}</button>}
          </For>
          <button onClick={() => setStore("mounted", false)}>Unmount pane</button>
+          <button onClick={() => setStore({ url: "about:blank", loading: false })}>Blank page</button>
+          <button onClick={() => setStore({ url: "about:blank", loading: true })}>Loading page</button>
+          <button
+            onClick={() =>
+              setStore({ loading: true, generation: store.generation + 1, loadErrors: { [store.session]: undefined } })
+            }
+          >
+            Load current page
+          </button>
+          <button onClick={() => setStore("loadErrors", store.session, "ERR_CONNECTION_REFUSED")}>Failed page</button>
+          <button onClick={() => setStore("delayNavigation", true)}>Delay navigation</button>
+          <button onClick={() => setStore({ error: "ERR_BLOCKED_BY_CLIENT", pendingURL: undefined })}>
+            Block navigation
+          </button>
+          <button
+            onClick={() =>
+              setStore({
+                url: store.pendingURL,
+                pendingURL: undefined,
+                loading: false,
+                generation: store.generation + 1,
+              })
+            }
+          >
+            Complete navigation
+          </button>
          <button onClick={() => setStore("visible", (visible) => !visible)}>Toggle Review tab</button>
        </nav>
        <div style={{ width: "640px", height: "360px", border: "1px solid #555" }}>
@@ -57,3 +57,153 @@ story("hides the native view immediately while the pane stays mounted", async ({
  await toggle.click()
  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
 })
+
+story("shows the empty state over a blank native page and restores navigation", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Blank page", exact: true }).click()
+  await expect(root.getByText("Enter URL", { exact: true })).toBeVisible()
+  await expect(root.getByText('Or prompt "Open in the app browser"', { exact: true })).toBeVisible()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+  await expect(root.getByRole("button", { name: "Reload", exact: true })).toBeDisabled()
+
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("https://example.com/")
+  await expect(root.getByText("Enter URL", { exact: true })).toBeVisible()
+  await address.press("Enter")
+  await expect(address).not.toBeFocused()
+  await expect(root.getByText("Enter URL", { exact: true })).toBeHidden()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(root.getByRole("button", { name: "Reload", exact: true })).toBeEnabled()
+})
+
+story("keeps Stop available and hides the empty state while a blank page loads", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Loading page", exact: true }).click()
+  await expect(root.getByText("Enter URL", { exact: true })).toBeHidden()
+  await root.getByRole("button", { name: "Stop", exact: true }).click()
+  await expect(root.getByText("Enter URL", { exact: true })).toBeVisible()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+})
+
+story("keeps the submitted URL visible until the browser reports navigation", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Blank page", exact: true }).click()
+  await root.getByRole("button", { name: "Delay navigation", exact: true }).click()
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("https://example.com/")
+  await address.press("Enter")
+  await expect(address).not.toBeFocused()
+  await expect(address).toHaveValue("https://example.com/")
+  await expect(root.getByText("Enter URL", { exact: true })).toBeHidden()
+
+  await root.getByRole("button", { name: "Complete navigation", exact: true }).click()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(address).toHaveValue("https://example.com/")
+
+  await address.fill("https://unsubmitted.example/")
+  await root.getByRole("button", { name: "Delay navigation", exact: true }).click()
+  await expect(address).toHaveValue("https://example.com/")
+})
+
+story("restores the current URL when a submitted navigation is blocked", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Delay navigation", exact: true }).click()
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("https://blocked.example/")
+  await address.press("Enter")
+  await expect(address).toHaveValue("https://blocked.example/")
+  await root.getByRole("button", { name: "Block navigation", exact: true }).click()
+  await expect(root.getByText("ERR_BLOCKED_BY_CLIENT", { exact: true })).toBeVisible()
+  await expect(address).toHaveValue("https://alpha.example/")
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+})
+
+story("shows a themed failure state for only the failed tab and allows retry", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Failed page", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeVisible()
+  await expect(root.getByText("Check the URL and your connection, then try again.", { exact: true })).toBeVisible()
+  await expect(root.getByText("Request failed", { exact: true })).toBeHidden()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+  await expect(root.getByRole("textbox", { name: "Browser address", exact: true })).toHaveValue(
+    "https://alpha.example/",
+  )
+
+  await root.getByRole("button", { name: "Beta", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeHidden()
+  await expect(root.getByTestId("native-Beta")).toHaveAttribute("data-visible", "true")
+  await root.getByRole("button", { name: "Alpha", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeVisible()
+
+  await root.getByRole("button", { name: "Reload", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeHidden()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+})
+
+story("returns a failed tab to the empty state when an empty URL is submitted", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Failed page", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeVisible()
+  await root.getByRole("button", { name: "Delay navigation", exact: true }).click()
+
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("")
+  await address.press("Enter")
+  await expect(address).not.toBeFocused()
+  await expect(address).toHaveValue("")
+  await root.getByRole("button", { name: "Load current page", exact: true }).click()
+  await expect(root.getByRole("button", { name: "Stop", exact: true })).toBeEnabled()
+  await root.getByRole("button", { name: "Complete navigation", exact: true }).click()
+  await expect(root.getByText("URL can't be reached", { exact: true })).toBeHidden()
+  await expect(root.getByText("Enter URL", { exact: true })).toBeVisible()
+  await expect(root.getByRole("button", { name: "Reload", exact: true })).toBeDisabled()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+})
+
+story("selects the full URL when the address field gains focus", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.click()
+  await expect(address).toHaveJSProperty("selectionStart", 0)
+  await expect(address).toHaveJSProperty("selectionEnd", "https://alpha.example/".length)
+  await address.pressSequentially("https://example.com/")
+  await expect(address).toHaveValue("https://example.com/")
+  await address.press("Enter")
+  await expect(address).not.toBeFocused()
+  await address.focus()
+  await expect(address).toHaveJSProperty("selectionStart", 0)
+  await expect(address).toHaveJSProperty("selectionEnd", "https://example.com/".length)
+  await address.press("ArrowRight")
+  await address.click()
+  await expect(address).toHaveJSProperty("selectionStart", 0)
+  await expect(address).toHaveJSProperty("selectionEnd", "https://example.com/".length)
+})
+
+story("keeps the current page visible while a submitted URL loads", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Delay navigation", exact: true }).click()
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("https://example.com/")
+  await address.press("Enter")
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(address).toHaveValue("https://example.com/")
+
+  await root.getByRole("button", { name: "Load current page", exact: true }).click()
+  await expect(root.getByRole("button", { name: "Stop", exact: true })).toBeEnabled()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await root.getByRole("button", { name: "Complete navigation", exact: true }).click()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(address).toHaveValue("https://example.com/")
+})
+
+story("keeps the current page and restores its URL when an empty address is submitted", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  const address = root.getByRole("textbox", { name: "Browser address", exact: true })
+  await address.fill("")
+  await address.press("Enter")
+  await expect(address).not.toBeFocused()
+  await expect(address).toHaveValue("https://alpha.example/")
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(root.getByText("Enter URL", { exact: true })).toBeHidden()
+  await expect(root.getByRole("button", { name: "Reload", exact: true })).toBeEnabled()
+})
@@ -17,14 +17,12 @@ const milestones = [
  "electronSpawnStarted",
  "debugEndpointReady",
  "electronStarted",
+  "layersReady",
+  "windowVisible",
  "serviceEnsureStarted",
  "serviceSpawnRequested",
  "serviceReady",
-  "backgroundLoadingReady",
  "rendererViteConnected",
-  "rendererInitializationStarted",
-  "rendererInitializationReady",
-  "windowVisible",
  "homeReady",
 ] as const
 const phases = [
@@ -128,14 +126,12 @@ const milestonePatterns: ReadonlyArray<{ name: Milestone; text: string }> = [
  { name: "electronSpawnStarted", text: "starting electron app..." },
  { name: "debugEndpointReady", text: "DevTools listening on ws://" },
  { name: "electronStarted", text: "app starting" },
+  { name: "layersReady", text: "layers ready" },
+  { name: "windowVisible", text: "main window visible" },
  { name: "serviceEnsureStarted", text: "starting v2 background service" },
  { name: "serviceSpawnRequested", text: "v2 CLI background service starting" },
  { name: "serviceReady", text: "v2 CLI background service ready" },
-  { name: "backgroundLoadingReady", text: "loading task finished" },
  { name: "rendererViteConnected", text: "[vite] connected." },
-  { name: "rendererInitializationStarted", text: "awaiting server ready" },
-  { name: "rendererInitializationReady", text: "server ready" },
-  { name: "windowVisible", text: "main window visible" },
 ]

 async function createColdProfile() {
@@ -404,14 +400,12 @@ function requireMilestones(observed: Partial<Record<Milestone, number>>) {
    electronSpawnStarted: get("electronSpawnStarted"),
    debugEndpointReady: get("debugEndpointReady"),
    electronStarted: get("electronStarted"),
+    layersReady: get("layersReady"),
+    windowVisible: get("windowVisible"),
    serviceEnsureStarted: get("serviceEnsureStarted"),
    serviceSpawnRequested: get("serviceSpawnRequested"),
    serviceReady: get("serviceReady"),
-    backgroundLoadingReady: get("backgroundLoadingReady"),
    rendererViteConnected: get("rendererViteConnected"),
-    rendererInitializationStarted: get("rendererInitializationStarted"),
-    rendererInitializationReady: get("rendererInitializationReady"),
-    windowVisible: get("windowVisible"),
    homeReady: get("homeReady"),
  }
 }
@@ -20,14 +20,12 @@ describe("desktop startup benchmark", () => {
      ["electronSpawnStarted", "starting electron app..."],
      ["debugEndpointReady", "DevTools listening on ws://"],
      ["electronStarted", "app starting"],
+      ["layersReady", "layers ready"],
+      ["windowVisible", "main window visible"],
      ["serviceEnsureStarted", "starting v2 background service"],
      ["serviceSpawnRequested", "v2 CLI background service starting"],
      ["serviceReady", "v2 CLI background service ready"],
-      ["backgroundLoadingReady", "loading task finished"],
      ["rendererViteConnected", "[vite] connected."],
-      ["rendererInitializationStarted", "awaiting server ready"],
-      ["rendererInitializationReady", "server ready"],
-      ["windowVisible", "main window visible"],
    ] as const
    cases.forEach(([milestone, line]) => {
      expect(milestoneForLine(`\u001b[32m${line}\u001b[39m`)).toBe(milestone)
@@ -58,14 +56,12 @@ function sample(run: number, commandToHomeReadyMs: number): DesktopStartupSample
    electronSpawnStarted: 7,
    debugEndpointReady: 8,
    electronStarted: 9,
-    serviceEnsureStarted: 10,
-    serviceSpawnRequested: 11,
-    serviceReady: 12,
-    backgroundLoadingReady: 13,
-    rendererViteConnected: 14,
-    rendererInitializationStarted: 15,
-    rendererInitializationReady: 16,
-    windowVisible: 17,
+    layersReady: 10,
+    windowVisible: 11,
+    serviceEnsureStarted: 12,
+    serviceSpawnRequested: 13,
+    serviceReady: 14,
+    rendererViteConnected: 15,
    homeReady: commandToHomeReadyMs,
  }
  return {
@@ -80,8 +76,8 @@ function sample(run: number, commandToHomeReadyMs: number): DesktopStartupSample
      electronStartup: 2,
      serviceSpawnWait: 1,
      serviceProcessStartup: 1,
-      rendererStartup: commandToHomeReadyMs - 14,
-      visibleWindowToHome: commandToHomeReadyMs - 17,
+      rendererStartup: commandToHomeReadyMs - 15,
+      visibleWindowToHome: commandToHomeReadyMs - 11,
    },
    service: { version: "2.0.0-local-test", url: "http://127.0.0.1:3000", pid: run },
  }
@@ -0,0 +1,145 @@
+import { base64Encode } from "@opencode/util/encode"
+import { expect, test } from "@playwright/test"
+import { mockOpenCodeServer } from "../utils/mock-server"
+import { expectSessionTitle } from "../utils/waits"
+
+const directory = "C:/OpenCode/BtwSidebar"
+const projectID = "proj_btw_sidebar"
+const sessionID = "ses_btw_sidebar"
+const otherSessionID = "ses_btw_sidebar_other"
+const title = "Side question session"
+const otherTitle = "Other side question session"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+const sessionHref = (id: string) => `/server/${base64Encode(server)}/session/${id}`
+
+test.use({ viewport: { width: 1440, height: 900 } })
+
+test("answers /btw in the side panel without admitting a prompt", async ({ page }) => {
+  const generations: { sessionID: string; prompt: string }[] = []
+  const prompts: unknown[] = []
+  const generated = Promise.withResolvers<void>()
+  await mockOpenCodeServer(page, {
+    directory,
+    project: {
+      id: projectID,
+      worktree: directory,
+      vcs: "git",
+      name: "btw-sidebar",
+      time: { created: 1700000000000, updated: 1700000000000 },
+      sandboxes: [],
+    },
+    provider: {
+      all: [
+        {
+          id: "opencode",
+          name: "OpenCode",
+          models: { test: { id: "test", name: "Test", limit: { context: 200_000 } } },
+        },
+      ],
+      connected: ["opencode"],
+      default: { providerID: "opencode", modelID: "test" },
+    },
+    sessions: [
+      {
+        id: sessionID,
+        slug: sessionID,
+        projectID,
+        directory,
+        title,
+        version: "dev",
+        time: { created: 1700000000000, updated: 1700000000000 },
+      },
+      {
+        id: otherSessionID,
+        slug: otherSessionID,
+        projectID,
+        directory,
+        title: otherTitle,
+        version: "dev",
+        time: { created: 1700000001000, updated: 1700000001000 },
+      },
+    ],
+    pageMessages: () => ({ items: [] }),
+    vcsDiff: [],
+    onPrompt: (input) => prompts.push(input),
+    generate: async (input) => {
+      generations.push(input)
+      if (input.sessionID === otherSessionID) return { text: "This answer belongs to the **other session**." }
+      await generated.promise
+      return {
+        text: "The retry loop uses **exponential backoff** and stops after three attempts.\n\n```ts\nconst delay = 2 ** attempt\n```",
+      }
+    },
+  })
+  await page.addInitScript(
+    ({ directory, server, sessionID, otherSessionID }) => {
+      localStorage.setItem(
+        "opencode.global.dat:server",
+        JSON.stringify({
+          projects: { local: [{ worktree: directory, expanded: true }] },
+          lastProject: { local: directory },
+        }),
+      )
+      localStorage.setItem(
+        "opencode.window.browser.dat:tabs",
+        JSON.stringify([
+          { type: "session", server, sessionId: sessionID },
+          { type: "session", server, sessionId: otherSessionID },
+        ]),
+      )
+    },
+    { directory, server, sessionID, otherSessionID },
+  )
+
+  await page.goto(sessionHref(sessionID))
+  await expectSessionTitle(page, title)
+  const editor = page.locator('[data-component="composer-editor"]')
+  await expect(editor).toBeEditable()
+
+  await editor.fill("/btw")
+  const suggestion = page.locator('[data-suggestion-id="session.btw"]')
+  await expect(suggestion).toBeVisible()
+  await suggestion.click()
+  await expect(editor).toHaveText("/btw ")
+  await editor.press("Enter")
+
+  const panel = page.locator('[data-slot="session-btw-panel"]')
+  await expect(panel).toBeHidden()
+  await expect(page.getByText("Add a question after /btw", { exact: true })).toBeVisible()
+  expect(generations).toEqual([])
+  expect(prompts).toEqual([])
+
+  await editor.fill("/btw how does the retry loop work?")
+  await editor.press("Enter")
+
+  const tab = page.getByRole("tab", { name: "/btw" })
+  await expect(panel).toBeVisible()
+  await expect(panel.getByRole("textbox")).toHaveCount(0)
+  await expect(panel.getByRole("status")).toContainText("Working")
+  await expect(tab).toHaveAttribute("data-selected", "")
+  generated.resolve()
+  await expect(panel.getByText("how does the retry loop work?", { exact: true })).toBeVisible()
+  await expect(panel.getByText("exponential backoff", { exact: false })).toBeVisible()
+  await expect(panel.getByText("const delay = 2 ** attempt", { exact: true })).toBeVisible()
+  expect(generations).toHaveLength(1)
+  expect(generations[0]?.sessionID).toBe(sessionID)
+  expect(generations[0]?.prompt).toContain("how does the retry loop work?")
+  expect(prompts).toEqual([])
+  await expect(editor).toHaveText("")
+
+  await page.locator(`[data-titlebar-tab-link][href="${sessionHref(otherSessionID)}"]`).click()
+  await expectSessionTitle(page, otherTitle)
+  await editor.fill("/btw what belongs here?")
+  await editor.press("Enter")
+  await expect(panel.getByText("other session", { exact: false })).toBeVisible()
+
+  await page.locator(`[data-titlebar-tab-link][href="${sessionHref(sessionID)}"]`).click()
+  await expectSessionTitle(page, title)
+  await expect(panel.getByText("exponential backoff", { exact: false })).toBeVisible()
+  await expect(panel.getByText("other session", { exact: false })).toHaveCount(0)
+
+  await page.reload()
+  await expectSessionTitle(page, title)
+  await expect(page.getByRole("tab", { name: "/btw" })).toHaveCount(0)
+  await expect(page.locator('[data-slot="session-btw-panel"]')).toHaveCount(0)
+})
@@ -0,0 +1,110 @@
+import { expect, test, type Locator, type Page } from "@playwright/test"
+import { fixture, pageMessages } from "../smoke/session-timeline.fixture"
+import { mockOpenCodeServer } from "../utils/mock-server"
+
+test.use({ viewport: { width: 390, height: 844 }, hasTouch: true, isMobile: true })
+
+test.beforeEach(async ({ page }) => {
+  await mockOpenCodeServer(page, {
+    sessions: fixture.sessions,
+    provider: fixture.provider,
+    directory: fixture.directory,
+    project: fixture.project,
+    pageMessages,
+  })
+  await page.addInitScript(
+    ({ directory, server, sessions }) => {
+      localStorage.setItem(
+        "opencode.global.dat:server",
+        JSON.stringify({ projects: { local: [{ worktree: directory, expanded: true }] } }),
+      )
+      localStorage.setItem(
+        "opencode.window.browser.dat:tabs",
+        JSON.stringify(sessions.map((session) => ({ type: "session", server, sessionId: session.id }))),
+      )
+    },
+    { directory: fixture.directory, server: fixture.serverKey, sessions: fixture.sessions },
+  )
+  await page.goto("/")
+  await page.locator('[data-slot="mobile-tabs-trigger"]').click()
+  await expect(page.locator('[data-slot="mobile-tabs-drawer"]')).toBeVisible()
+  const drawer = page.locator('[data-slot="mobile-drawer-content"]')
+  await expect
+    .poll(() => drawer.evaluate((element) => new DOMMatrixReadOnly(getComputedStyle(element).transform).m42))
+    .toBe(0)
+  await expect(drawer).not.toHaveAttribute("data-transitioning")
+})
+
+test("reorders session tabs with touch", async ({ page }) => {
+  const tabs = page.locator('[data-slot="vertical-tabs"] a')
+  await expect(tabs).toContainText([fixture.expected.sourceTitle, fixture.expected.targetTitle])
+
+  const target = tabs.filter({ hasText: fixture.expected.targetTitle })
+  const source = tabs.filter({ hasText: fixture.expected.sourceTitle })
+  const targetBox = await target.boundingBox()
+  const sourceBox = await source.boundingBox()
+  expect(targetBox).not.toBeNull()
+  expect(sourceBox).not.toBeNull()
+
+  await touchDrag(page, source, {
+    from: { x: sourceBox!.x + sourceBox!.width / 2, y: sourceBox!.y + sourceBox!.height / 2 },
+    to: { x: targetBox!.x + targetBox!.width / 2, y: targetBox!.y + targetBox!.height / 2 },
+  })
+
+  await expect(tabs).toContainText([fixture.expected.targetTitle, fixture.expected.sourceTitle])
+})
+
+test("dismisses a touch context menu by tapping outside", async ({ page }) => {
+  const drawer = page.locator('[data-slot="mobile-tabs-drawer"]')
+  const tab = drawer.locator('[data-slot="tab-link"]').filter({ hasText: fixture.expected.sourceTitle })
+  const home = drawer.getByRole("button", { name: "Home", exact: true })
+  const homeBox = await home.boundingBox()
+  const box = await tab.boundingBox()
+  expect(homeBox).not.toBeNull()
+  expect(box).not.toBeNull()
+  const point = { x: box!.x + box!.width / 2, y: box!.y + box!.height / 2 }
+
+  await tab.dispatchEvent("pointerdown", {
+    pointerType: "touch",
+    pointerId: 1,
+    isPrimary: true,
+    clientX: point.x,
+    clientY: point.y,
+  })
+  const rename = page.getByRole("menuitem", { name: "Rename", exact: true })
+  await expect(rename).toBeVisible()
+  await expect(drawer).toBeVisible()
+  await tab.filter({ visible: true }).dispatchEvent("pointerup", {
+    pointerType: "touch",
+    pointerId: 1,
+    isPrimary: true,
+    clientX: point.x,
+    clientY: point.y,
+  })
+
+  await page.touchscreen.tap(homeBox!.x + homeBox!.width / 2, homeBox!.y + homeBox!.height / 2)
+  await expect(rename).toBeHidden()
+  await expect(drawer).toBeVisible()
+})
+
+async function touchDrag(
+  page: Page,
+  source: Locator,
+  input: { from: { x: number; y: number }; to: { x: number; y: number } },
+) {
+  const client = await page.context().newCDPSession(page)
+  await client.send("Input.dispatchTouchEvent", {
+    type: "touchStart",
+    touchPoints: [{ ...input.from, id: 1 }],
+  })
+  await client.send("Input.dispatchTouchEvent", {
+    type: "touchMove",
+    touchPoints: [{ x: (input.from.x + input.to.x) / 2, y: (input.from.y + input.to.y) / 2, id: 1 }],
+  })
+  await expect(source).toHaveCount(2)
+  await client.send("Input.dispatchTouchEvent", {
+    type: "touchMove",
+    touchPoints: [{ ...input.to, id: 1 }],
+  })
+  await client.send("Input.dispatchTouchEvent", { type: "touchEnd", touchPoints: [] })
+}
@@ -0,0 +1,54 @@
+import { expect, test } from "@playwright/test"
+
+test("pairs locally without checking the server and authenticates subsequent requests", async ({ page, baseURL }) => {
+  const origin = new URL(baseURL ?? "http://127.0.0.1:3000").origin
+  const password = "pairing-secret"
+  const authorization = `Basic ${Buffer.from(`opencode:${password}`).toString("base64")}`
+  const requests: { origin: string; authorization: string | undefined }[] = []
+  await page.addInitScript((origin) => {
+    if (localStorage.getItem("opencode.global.dat:server")) return
+    localStorage.setItem(
+      "opencode.global.dat:server",
+      JSON.stringify({ list: [{ type: "http", http: { url: origin, password: "old-password" } }] }),
+    )
+  }, origin)
+  await page.route("**/api/**", async (route) => {
+    requests.push({
+      origin: new URL(route.request().url()).origin,
+      authorization: route.request().headers().authorization,
+    })
+    // Pairing must succeed even when the API is unavailable.
+    await route.fulfill({ status: 503, contentType: "application/json", body: "{}" })
+  })
+
+  await page.goto(`/connect#${Buffer.from(JSON.stringify({ username: "opencode", password })).toString("base64url")}`)
+  await expect(page).toHaveURL(`${origin}/`)
+  await expect(page.getByRole("button", { name: "Home", exact: true })).toBeVisible()
+  await expect
+    .poll(() => page.evaluate(() => JSON.parse(localStorage.getItem("opencode.global.dat:server") ?? "{}").list))
+    .toEqual([{ type: "http", http: { url: origin, password } }])
+  await expect.poll(() => requests.filter((request) => request.origin === origin).length).toBeGreaterThan(0)
+  expect(
+    requests.filter((request) => request.origin === origin).every((request) => request.authorization === authorization),
+  ).toBe(true)
+
+  requests.length = 0
+  await page.reload()
+  await expect(page.getByRole("button", { name: "Home", exact: true })).toBeVisible()
+  await expect.poll(() => requests.filter((request) => request.origin === origin).length).toBeGreaterThan(0)
+  expect(
+    requests.filter((request) => request.origin === origin).every((request) => request.authorization === authorization),
+  ).toBe(true)
+})
+
+test("the unpaired page loads without starting server requests", async ({ page }) => {
+  const requests: string[] = []
+  await page.route("**/api/**", async (route) => {
+    requests.push(route.request().url())
+    await route.abort()
+  })
+  await page.goto("/connect")
+  await expect(page.getByRole("heading", { name: "Connect to a server" })).toBeVisible()
+  await expect(page.getByLabel("Password", { exact: true })).toBeEditable()
+  expect(requests).toEqual([])
+})
@@ -71,7 +71,7 @@ for (const direction of ["ltr", "rtl"] as const) {
    const shifted = await content.evaluate((element) => getComputedStyle(element).translate)
    await content.evaluate((element) => element.setAttribute("data-summary-motion", ""))
    // Keep issuing resize events before the idle timer expires, including crossing the width cutoff.
-    for (const width of [1520, 1280, 1600]) {
+    for (const width of [1520, 1280, 1800]) {
      await page.setViewportSize({ width, height: 900 })
      await expect(panel).toHaveAttribute("data-summary-resizing", "true")
      await page.clock.runFor(100)
@@ -84,6 +84,7 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect(content).toHaveAttribute("data-summary-motion", "transitionrun,transitionend,")
    await expect(content).not.toHaveCSS("translate", shifted)
    await page.setViewportSize({ width: 1440, height: 900 })
+    await expect(panel).toHaveAttribute("data-summary-resizing", "false")
    await expect(content).toHaveCSS("translate", shifted)

    await content.evaluate((element) => element.setAttribute("data-summary-motion", ""))
@@ -112,7 +113,8 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect(summary).toBeVisible()

    await page.setViewportSize({ width: 1800, height: 900 })
-    await expect(content).toHaveCSS("translate", "0px")
+    await expect(panel).toHaveAttribute("data-summary-resizing", "false")
+    await expect(content).toHaveCSS("translate", "none")
    await expect(summary).toBeVisible()

    await page.emulateMedia({ reducedMotion: "reduce" })
@@ -166,6 +166,45 @@ test.describe("session timeline projection", () => {
    await expect(longNotice.locator("[title]")).toHaveAttribute("title", `Switched to ${longName}`)
    await expect.poll(() => longNotice.evaluate((element) => element.scrollWidth <= element.clientWidth)).toBe(true)
  })
+
+  test("does not repeat a review comment file as an attachment", async ({ page }) => {
+    const message = userMessage([
+      userText("what's goin on here", { id: "prt_user_review_comment" }),
+      {
+        id: "prt_user_review_file",
+        type: "file",
+        mime: "text/plain",
+        filename: "LiveRuntime.ts",
+        url: "file:///repo/LiveRuntime.ts?start=14&end=32",
+      },
+      {
+        id: "prt_user_unrelated_file",
+        type: "file",
+        mime: "text/plain",
+        filename: "notes.txt",
+        url: "data:text/plain;base64,bm90ZXM=",
+      },
+    ])
+    message.metadata = {
+      displayText: "what's goin on here",
+      comments: [
+        {
+          path: "LiveRuntime.ts",
+          comment: "what's goin on here",
+          selection: { startLine: 14, startChar: 0, endLine: 32, endChar: 0 },
+          origin: "review",
+        },
+      ],
+    }
+
+    await setupTimeline(page, { messages: [message, assistantMessage()] })
+
+    const user = page.locator('[data-component="user-message"]')
+    await expect(user.getByText("LiveRuntime.ts:14-32", { exact: true })).toBeVisible()
+    const attachments = user.locator('[data-slot="user-message-attachments"]')
+    await expect(attachments.getByText("LiveRuntime.ts", { exact: true })).toHaveCount(0)
+    await expect(attachments.getByText("notes.txt", { exact: true })).toBeVisible()
+  })
 })

 function patchFile(file: string, status: "added" | "modified" | "deleted") {
@@ -116,7 +116,7 @@ test("single-server settings expose scoped pages without a server picker", async
  await expect(connection.getByRole("heading", { name: "Connection", exact: true })).toBeVisible()
  await expect(connection.locator('[data-component="settings-list"]')).toHaveCSS("padding-left", "16px")
  await expect(connection.locator(".settings-servers-row")).toHaveCSS("padding-top", "20px")
-  await expect(connection.locator(".settings-servers-lead")).toHaveCSS("column-gap", "4px")
+  await expect(connection.locator(".settings-servers-lead")).toHaveCSS("column-gap", "10px")
  await expect(connection.locator(".settings-servers-copy")).toHaveCSS("row-gap", "6px")
  await expect(settings.getByRole("heading", { name: "Preferences", exact: true })).toBeVisible()
  await expect(settings.getByText("Terminal shell", { exact: true })).toBeVisible()
@@ -197,6 +197,13 @@ const Group = HttpApiGroup.make("mock")
      success: Json,
    }),
  )
+  .add(
+    HttpApiEndpoint.post("sessionGenerate", "/api/session/:sessionID/generate", {
+      params: SessionParams,
+      payload: Schema.Struct({ prompt: Schema.String }),
+      success: Json,
+    }),
+  )
  .add(
    HttpApiEndpoint.post("sessionSwitchAgent", "/api/session/:sessionID/agent", {
      params: SessionParams,
@@ -42,6 +42,7 @@ export interface MockServerConfig {
  sessionStatus?: Record<string, unknown> | (() => Record<string, unknown>)
  inbox?: unknown[] | (() => unknown[])
  onPrompt?: (input: { sessionID: string; body: Record<string, unknown> }) => void
+  generate?: (input: { sessionID: string; prompt: string }) => { text: string } | Promise<{ text: string }>
  onInboxChange?: (input: { sessionID: string; inboxID: string; action: "cancel" | "steer" | "queue" }) => void
 }

@@ -456,6 +457,12 @@ function mockHandlers(config: MockServerConfig, state: { cursors: Map<string, st
              },
            }
          }),
+        sessionGenerate: (ctx) =>
+          Effect.promise(async () => ({
+            data: (await config.generate?.({ sessionID: ctx.params.sessionID, prompt: ctx.payload.prompt })) ?? {
+              text: "Side-question answer",
+            },
+          })),
        sessionInboxCancel: (ctx) =>
          Effect.sync(() =>
            config.onInboxChange?.({ sessionID: ctx.params.sessionID, inboxID: ctx.params.inboxID, action: "cancel" }),
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/app",
-  "version": "2.0.8",
+  "version": "2.0.14",
  "description": "",
  "type": "module",
  "exports": {
@@ -46,7 +46,6 @@
    "@sentry/vite-plugin": "catalog:",
    "@tailwindcss/vite": "4.3.3",
    "@types/bun": "catalog:",
-    "@types/luxon": "catalog:",
    "@types/node": "catalog:",
    "@typescript/native-preview": "catalog:",
    "diff": "catalog:",
@@ -88,11 +87,11 @@
    "effect": "catalog:",
    "fuzzysort": "catalog:",
    "ghostty-web": "github:anomalyco/ghostty-web#83c0a07b8628b748aed073b232cb4b52a6ca11c1",
-    "luxon": "catalog:",
    "qr-scanner": "1.4.2",
    "remeda": "catalog:",
    "solid-js": "catalog:",
    "solid-presence": "0.2.0",
-    "tailwindcss": "4.3.3"
+    "tailwindcss": "4.3.3",
+    "uqr": "0.1.3"
  }
 }
@@ -4,9 +4,9 @@ import { FileComponentProvider } from "@opencode/ui/context/file"
 import { Font } from "@opencode/ui/font"
 import { ThemeProvider } from "@opencode/ui/theme/context"
 import { MetaProvider } from "@solidjs/meta"
-import { type BaseRouterProps, Router } from "@solidjs/router"
+import { type BaseRouterProps, Router, useLocation } from "@solidjs/router"
 import { QueryClient, QueryClientProvider } from "@tanstack/solid-query"
-import { type Component, createRenderEffect, ErrorBoundary, type JSX, type ParentProps } from "solid-js"
+import { type Component, createRenderEffect, ErrorBoundary, type JSX, type ParentProps, Show } from "solid-js"
 import { Dynamic } from "solid-js/web"
 import { CommandProvider } from "@/shell/commands/command"
 import { DesktopCommands } from "@/shell/commands/desktop"
@@ -107,21 +107,29 @@ export function AppInterface(props: {
  // The visual layout lives in the router root so it remains mounted across
  // route changes. Draft and session routes override only their server-bound data
  // providers beneath it.
-  const Root = (rootProps: ParentProps) => (
-    <TabsProvider>
-      <GlobalProvider>
+  const Root = (rootProps: ParentProps) => {
+    const location = useLocation()
+    // Pairing saves credentials before mounting any server connections or health checks.
+    return (
+      <>
        <BodyTypography />
-        <CommandProvider>
-          <DesktopCommands />
-          <SshRestore />
-          <HighlightsProvider>
-            {props.children}
-            {rootProps.children}
-          </HighlightsProvider>
-        </CommandProvider>
-      </GlobalProvider>
-    </TabsProvider>
-  )
+        <Show when={location.pathname !== "/connect"} fallback={rootProps.children}>
+          <TabsProvider>
+            <GlobalProvider>
+              <CommandProvider>
+                <DesktopCommands />
+                <SshRestore />
+                <HighlightsProvider>
+                  {props.children}
+                  {rootProps.children}
+                </HighlightsProvider>
+              </CommandProvider>
+            </GlobalProvider>
+          </TabsProvider>
+        </Show>
+      </>
+    )
+  }

  return (
    <ServersProvider
@@ -0,0 +1,32 @@
+import { describe, expect, test } from "bun:test"
+import { parseClientSlashCommand } from "./client-slash-command"
+
+const options = [
+  { id: "session.btw", trigger: "btw", arguments: true, type: "builtin" as const },
+  { id: "custom.btw", trigger: "custom", type: "custom" as const },
+  { id: "model.choose", trigger: "model", type: "builtin" as const },
+]
+
+describe("parseClientSlashCommand", () => {
+  test("parses inline and multiline arguments", () => {
+    expect(parseClientSlashCommand(options, "/btw why this approach?")).toEqual({
+      id: "session.btw",
+      input: "why this approach?",
+    })
+    expect(parseClientSlashCommand(options, "/btw\nwhy this approach?")).toEqual({
+      id: "session.btw",
+      input: "why this approach?",
+    })
+  })
+
+  test("accepts a bare argument command", () => {
+    expect(parseClientSlashCommand(options, "/btw")).toEqual({ id: "session.btw", input: "" })
+  })
+
+  test("rejects prefixes, custom commands, and ordinary slash commands", () => {
+    expect(parseClientSlashCommand(options, "/btwx nope")).toBeUndefined()
+    expect(parseClientSlashCommand(options, "/custom nope")).toBeUndefined()
+    expect(parseClientSlashCommand(options, "/model opus")).toBeUndefined()
+    expect(parseClientSlashCommand(options, "ask /btw later")).toBeUndefined()
+  })
+})
@@ -0,0 +1,24 @@
+type ClientSlashCommand = {
+  id: string
+  trigger: string
+  arguments?: boolean
+  type: "builtin" | "custom"
+}
+
+export function parseSlashCommand(text: string) {
+  if (!text.startsWith("/")) return
+  const separator = text.search(/\s/)
+  const name = text.slice(1, separator === -1 ? undefined : separator)
+  return { name, input: separator === -1 ? "" : text.slice(separator).trim() }
+}
+
+export function parseClientSlashCommand(options: readonly ClientSlashCommand[], text: string) {
+  const command = parseSlashCommand(text)
+  if (!command) return
+  const option = options.find((item) => item.type === "builtin" && item.arguments && item.trigger === command.name)
+  if (!option) return
+  return {
+    id: option.id,
+    input: command.input,
+  }
+}
@@ -5,6 +5,7 @@ import { useDialog } from "@opencode/ui/context/dialog"
 import { getCursorPosition, setCursorPosition } from "./editor/dom"
 import { useSessionLayout } from "@/session/session-layout"
 import { createSessionOwnership } from "@/session/session-ownership"
+import { useWorkspaceLocation } from "@/workspaces/location"

 const withCategory = (category: string) => {
  return (option: Omit<CommandOption, "category">): CommandOption => ({
@@ -18,11 +19,19 @@ export const useComposerCommands = (input: { model?: ModelSelection } = {}) => {
  const dialog = useDialog()
  const language = useLanguage()
  const local = useLocal()
+  const workspace = useWorkspaceLocation()
  const { sessionKey } = useSessionLayout()
  const sessionOwnership = createSessionOwnership(sessionKey)
  const model = input.model ?? local.model
  const modelCommand = withCategory(language.t("command.category.model"))
  const agentCommand = withCategory(language.t("command.category.agent"))
+  const providerCommand = withCategory(language.t("command.category.provider"))
+
+  // Mirrors the TUI's `/connect`, which the Console's setup steps tell people to run.
+  const connectProvider = async () => {
+    const { DialogConnectProvider } = await import("@/providers/connect/dialog")
+    void dialog.show(() => <DialogConnectProvider directory={workspace().directory} />)
+  }

  const chooseModel = async () => {
    const owner = sessionOwnership.capture()
@@ -62,6 +71,13 @@ export const useComposerCommands = (input: { model?: ModelSelection } = {}) => {
      keybind: "shift+mod+d",
      onSelect: () => model.variant.cycle(),
    }),
+    providerCommand({
+      id: "provider.connect",
+      title: language.t("command.provider.connect"),
+      description: language.t("command.provider.connect.description"),
+      slash: "connect",
+      onSelect: connectProvider,
+    }),
    agentCommand({
      id: "agent.cycle",
      title: language.t("command.agent.cycle"),
@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { Prompt } from "@/composer/state"
-import { prependHistoryEntry, type PromptHistoryComment } from "./entry"
+import { prependHistoryEntry, removeHistoryEntry, type PromptHistoryComment } from "./entry"
 import { Schema } from "effect"
 import { PromptHistoryState } from "../schema"
 import { Persistence } from "@/runtime/persistence/schema"
@@ -36,6 +36,24 @@ describe("Composer history", () => {
    expect(dedupedComments).toBe(commentsOnly)
  })

+  test("removeHistoryEntry drops the entry recorded for a prompt and leaves others alone", () => {
+    const image: Prompt = [
+      { type: "text", content: "look", start: 0, end: 4 },
+      { type: "image", id: "img", filename: "big.png", mime: "image/png", blob: { id: "hash", url: "" } },
+    ]
+    const entries = prependHistoryEntry(prependHistoryEntry([], text("earlier")), image, [comment("c1")])
+    expect(entries).toHaveLength(2)
+
+    const untouched = removeHistoryEntry(entries, text("never sent"))
+    expect(untouched).toBe(entries)
+
+    const withoutComments = removeHistoryEntry(entries, image)
+    expect(withoutComments).toBe(entries)
+
+    const removed = removeHistoryEntry(entries, image, [comment("c1")])
+    expect(removed).toEqual(prependHistoryEntry([], text("earlier")))
+  })
+
  test("insertion isolates canonical entries from source mutations", () => {
    const prompt: Prompt = [
      {
@@ -48,6 +48,18 @@ export function prependHistoryEntry(
  return [entry, ...entries].slice(0, max)
 }

+// A send that failed puts its prompt back in the composer, so the entry recorded for it would
+// only duplicate the draft and keep its attachments referenced for as long as history holds it.
+export function removeHistoryEntry(
+  entries: PromptHistoryStoredEntry[],
+  prompt: Prompt,
+  comments: PromptHistoryComment[] = [],
+) {
+  const entry = { prompt, comments } satisfies PromptHistoryEntry
+  const next = entries.filter((item) => !isPromptEqual(item, entry))
+  return next.length === entries.length ? entries : next
+}
+
 function isCommentEqual(commentA: PromptHistoryComment, commentB: PromptHistoryComment) {
  return (
    commentA.path === commentB.path &&
@@ -4,6 +4,7 @@ import { Persist, persisted } from "@/runtime/persistence/storage"
 import {
  clonePromptHistoryComments,
  prependHistoryEntry,
+  removeHistoryEntry,
  type PromptHistoryComment,
  type PromptHistoryStoredEntry,
 } from "./entry"
@@ -13,6 +14,7 @@ import { PromptHistoryState } from "../schema"
 export type ComposerHistoryStore = {
  entries: (mode: "normal" | "shell") => PromptHistoryStoredEntry[]
  add: (prompt: Prompt, mode: "normal" | "shell", comments: PromptHistoryComment[]) => void
+  remove: (prompt: Prompt, mode: "normal" | "shell", comments: PromptHistoryComment[]) => void
 }

 type PromptHistoryState = typeof PromptHistoryState.Type
@@ -32,6 +34,13 @@ function createComposerHistoryStore(
      if (next === current.entries) return
      setCurrent("entries", next)
    },
+    remove(prompt, mode, comments) {
+      const current = mode === "shell" ? shell : normal
+      const setCurrent = mode === "shell" ? setShell : setNormal
+      const next = removeHistoryEntry(current.entries, prompt, comments)
+      if (next === current.entries) return
+      setCurrent("entries", next)
+    },
  }
 }

@@ -56,5 +65,12 @@ export function createComposerHistory() {
      const metadata = clonePromptHistoryComments(comments)
      void ready.then(() => history.add(saved, mode, metadata))
    },
+    remove(prompt: Prompt, mode: "normal" | "shell", comments: PromptHistoryComment[]) {
+      const ready = mode === "shell" ? shellInit : normalInit
+      if (!(ready instanceof Promise)) return history.remove(prompt, mode, comments)
+      const saved = clonePrompt(prompt)
+      const metadata = clonePromptHistoryComments(comments)
+      void ready.then(() => history.remove(saved, mode, metadata))
+    },
  }
 }
@@ -24,6 +24,7 @@ import { createComposerHistory } from "./history/store"
 import { composerPlaceholder } from "./placeholder"
 import { createComposerSubmit } from "./submit"
 import { useAttachmentDestination } from "./attachments/destination"
+import { parseClientSlashCommand } from "./client-slash-command"

 export type ComposerModel = ComposerEditorModel & {
  readonly model: ComposerControls["model"]
@@ -73,9 +74,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
      return [...result, path]
    }, [])
  })
-  const attachments = createMemo(() =>
-    prompt.current().filter(isAttachment),
-  )
+  const attachments = createMemo(() => prompt.current().filter(isAttachment))
  const commentCount = createMemo(() => {
    if (mode() === "shell") return 0
    return prompt.context.items().filter((item) => !!item.comment?.trim()).length
@@ -242,6 +241,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
        trigger: item.slash!,
        title: item.title,
        description: item.description,
+        arguments: item.slashArguments,
        type: "builtin" as const,
      })),
  ])
@@ -264,6 +264,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
    editor: () => editor,
    queueScroll: () => requestAnimationFrame(() => editor?.scrollIntoView({ block: "nearest" })),
    addToHistory: (value, mode) => controller.addHistory(value, mode),
+    removeFromHistory: (value, mode, comments) => history.remove(value, mode, mode === "shell" ? [] : comments),
    resetHistory: () => controller.resetHistory(),
    setMode: (next) => controller.dispatch({ type: next === "shell" ? "mode.shell" : "mode.normal" }),
    closePopover: () => controller.dispatch({ type: "popover.close" }),
@@ -298,6 +299,11 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
      clear: comments.clear,
      restore: restoreHistoryComments,
    },
+    clientCommand: (text) => {
+      const selected = parseClientSlashCommand(slashCommands(), text)
+      if (!selected) return
+      return () => command.trigger(selected.id, "slash", selected.input)
+    },
  })
  const controller = createComposerEditor({
    store: prompt.store,
@@ -339,6 +345,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
      if (item.kind !== "command") return
      const selected = slashCommands().find((entry) => entry.id === item.id)
      if (!selected || selected.type === "custom") return
+      if (selected.arguments) return
      return () => command.trigger(selected.id, "slash")
    },
    attachments: {
@@ -53,14 +53,20 @@ function submitInput(
  notify = { missingSelection() {}, failed(_kind: "shell" | "command" | "prompt", _error: unknown) {} },
  mode: "normal" | "shell" = "normal",
  commands: () => readonly { name: string }[] | undefined = () => [],
+  history: string[] = [],
+  clientCommand?: (text: string) => (() => void | Promise<void>) | undefined,
 ) {
  return createComposerSubmit({
    adapter,
    mode: () => mode,
    commands,
+    clientCommand,
    editor: () => undefined,
    queueScroll() {},
-    addToHistory() {},
+    addToHistory: (prompt) =>
+      history.push(`add:${prompt.map((part) => ("content" in part ? part.content : part.type)).join("")}`),
+    removeFromHistory: (prompt) =>
+      history.push(`remove:${prompt.map((part) => ("content" in part ? part.content : part.type)).join("")}`),
    resetHistory() {},
    setMode() {},
    closePopover() {},
@@ -115,6 +121,61 @@ function session(input: {
 }

 describe("Composer submission", () => {
+  test("runs a client argument command without admitting it to the session", async () => {
+    const state = createMemoryComposerState().capture()
+    state.set([
+      { type: "text", content: "/btw why this approach?", start: 0, end: 23 },
+      {
+        type: "image",
+        id: "attachment",
+        filename: "diagram.png",
+        mime: "image/png",
+        blob: { id: "attachment", url: "data:image/png;base64,YQ==" },
+      },
+    ])
+    state.context.add({ type: "file", path: "src/retry.ts" })
+    const calls: string[] = []
+    const target = session({
+      calls,
+      prompt: async () => {
+        throw new Error("client command must not call prompt")
+      },
+    })
+    const adapter: ActiveComposerAdapter = {
+      kind: "active-session",
+      state,
+      ready: () => true,
+      controls,
+      working: () => false,
+      session: () => target,
+      interrupt: async () => undefined,
+      submitted() {},
+      setEditor() {},
+    }
+
+    const history: string[] = []
+    await submitInput(adapter, undefined, "normal", undefined, history, (text) => {
+      expect(text).toBe("/btw why this approach?")
+      return () => {
+        calls.push("btw")
+      }
+    }).submit(new Event("submit"))
+
+    expect(calls).toEqual(["btw"])
+    expect(history).toEqual([])
+    expect(state.current()).toEqual([
+      { type: "text", content: "", start: 0, end: 0 },
+      {
+        type: "image",
+        id: "attachment",
+        filename: "diagram.png",
+        mime: "image/png",
+        blob: { id: "attachment", url: "data:image/png;base64,YQ==" },
+      },
+    ])
+    expect(state.context.items()).toHaveLength(1)
+  })
+
  test("applies the captured agent and model before a custom command without passing over its overrides", async () => {
    const state = createMemoryComposerState({ prompt: "/review changes" }).capture()
    const calls: string[] = []
@@ -533,12 +594,8 @@ describe("Composer submission", () => {
      missingSelection() {},
      failed: () => (attempts.length === 2 ? first.resolve() : second.resolve()),
    }
-    const submission = submitInput(
-      adapter,
-      notify,
-      "normal",
-      () => [],
-    )
+    const history: string[] = []
+    const submission = submitInput(adapter, notify, "normal", () => [], history)

    await submission.submit(new Event("submit"))
    await first.promise
@@ -549,6 +606,8 @@ describe("Composer submission", () => {
    expect(new Set(attempts).size).toBe(1)
    expect(statuses).toEqual(["running", "idle", "running", "idle"])
    expect(state.current()).toMatchObject([{ type: "text", content: text }])
+    // The restored prompt is the draft again, so history does not also keep it (and its attachments).
+    expect(history).toEqual([`add:${text}`, `remove:${text}`, `add:${text}`, `remove:${text}`])
  })

  test("forwards structured mentions to custom commands", async () => {
@@ -624,12 +683,7 @@ describe("Composer submission", () => {
      },
    }

-    await submitInput(
-      adapter,
-      undefined,
-      "normal",
-      () => catalog,
-    ).submit(new Event("submit"))
+    await submitInput(adapter, undefined, "normal", () => catalog).submit(new Event("submit"))

    expect(await sent.promise).toBe("command")
    expect(requests).toEqual([
@@ -11,6 +11,7 @@ import { setCursorPosition } from "./editor/dom"
 import { blobDataUrl, resolveBlobUrl } from "@/runtime/persistence/drafts"
 import { isAttachment } from "./prompt-parts"
 import type { ModelSelection } from "@/providers/models/selection"
+import { parseSlashCommand } from "./client-slash-command"

 const submitting = new WeakSet<object>()

@@ -32,10 +33,12 @@ type ComposerSubmitInput = {
  editor: () => HTMLDivElement | undefined
  queueScroll: () => void
  addToHistory: (prompt: Prompt, mode: "normal" | "shell") => void
+  removeFromHistory: (prompt: Prompt, mode: "normal" | "shell", comments: PromptHistoryComment[]) => void
  resetHistory: () => void
  setMode: (mode: "normal" | "shell") => void
  closePopover: () => void
  delivery?: (alternate: boolean) => ComposerDelivery
+  clientCommand?: (text: string) => (() => void | Promise<void>) | undefined
  notify: {
    missingSelection: () => void
    failed: (kind: "shell" | "command" | "prompt", error: unknown) => void
@@ -51,15 +54,31 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
  const submit = async (event: globalThis.Event, options?: { alternate?: boolean }) => {
    event.preventDefault()

+    const prompt = clonePrompt(input.adapter.state.current())
+    const text = submissionText(prompt)
+    const clientCommand = input.mode() === "normal" ? input.clientCommand?.(text) : undefined
+    if (clientCommand) {
+      if (submitting.has(input.adapter.state)) return
+      submitting.add(input.adapter.state)
+      try {
+        clearClientCommand(input, prompt)
+        await clientCommand()
+      } catch (error) {
+        input.notify.failed("command", error)
+      } finally {
+        submitting.delete(input.adapter.state)
+      }
+      return
+    }
    const submission = createComposerSubmission({
      target: input.adapter.state,
-      prompt: clonePrompt(input.adapter.state.current()),
+      prompt,
      context: input.adapter.state.context.items().map((item) => ({
        ...item,
        selection: item.selection ? { ...item.selection } : undefined,
      })),
    })
-    const read = readSubmission(input, submission.prompt, submission.context, options?.alternate ?? false)
+    const read = readSubmission(input, submission.prompt, submission.context, text, options?.alternate ?? false)
    if (!read) {
      if (input.adapter.working() && input.adapter.kind === "active-session") void input.adapter.interrupt()
      return
@@ -149,6 +168,17 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
  }
 }

+function clearClientCommand(input: ComposerSubmitInput, prompt: Prompt) {
+  input.adapter.state.set([{ type: "text", content: "", start: 0, end: 0 }, ...prompt.filter(isAttachment)], 0)
+  input.adapter.state.mode.set("normal")
+  input.setMode("normal")
+  input.closePopover()
+}
+
+function submissionText(prompt: Prompt) {
+  return prompt.map((part) => ("content" in part ? part.content : "")).join("")
+}
+
 function handoffMessage(value: ComposerSubmission): SessionMessageUser {
  return {
    id: value.id,
@@ -192,9 +222,9 @@ function readSubmission(
  input: ComposerSubmitInput,
  prompt: Prompt,
  context: ComposerSubmission["context"],
+  text: string,
  alternate: boolean,
 ): ComposerSubmission | undefined {
-  const text = prompt.map((part) => ("content" in part ? part.content : "")).join("")
  const mode = input.mode()
  if (mode === "shell" && !text.trim()) return
  const images = prompt.filter((part): part is ImageAttachmentPart => part.type === "image")
@@ -250,6 +280,8 @@ function restoreSubmission(
 ) {
  const restored = submission.restore()
  if (!restored) return false
+  // The prompt is back in the composer; its history entry would only keep attachments referenced.
+  input.removeFromHistory(value.prompt, value.mode, comments)
  restored.target.set(restored.prompt, promptLength(restored.prompt))
  restored.target.mode.set(value.mode)
  restored.target.context.replaceComments(
@@ -295,14 +327,11 @@ async function sendShell(session: ComposerSession, value: ComposerSubmission) {
 }

 function findCommand(commands: ReturnType<ComposerSubmitInput["commands"]>, text: string) {
-  if (!text.startsWith("/")) return
-  const [name, ...arguments_] = text.split(" ")
-  const command = name.slice(1)
-  if (!commands?.some((item) => item.name === command)) return
-  return { command, arguments: arguments_.join(" ") }
+  const parsed = parseSlashCommand(text)
+  if (!parsed || !commands?.some((item) => item.name === parsed.name)) return
+  return { command: parsed.name, arguments: parsed.input }
 }

-
 async function sendCommand(
  session: ComposerSession,
  value: ComposerSubmission,
@@ -387,7 +416,10 @@ async function sendPrompt(

 async function buildSubmissionRequest(session: ComposerSession, value: ComposerSubmission) {
  const images = await Promise.all(
-    value.images.map(async (attachment) => ({ ...attachment, dataUrl: await blobDataUrl(attachment.blob, attachment.mime) })),
+    value.images.map(async (attachment) => ({
+      ...attachment,
+      dataUrl: await blobDataUrl(attachment.blob, attachment.mime),
+    })),
  )
  return buildPromptRequest({
    prompt: value.prompt,
@@ -47,7 +47,7 @@ export function HomeCommandPalette(props: {
    state.cleanup = undefined
    dialog.close()
    if (item.type === "command") {
-      item.option?.onSelect?.("palette")
+      void item.option?.onSelect?.("palette")
      return
    }
    if (item.type === "session") props.onSelectSession(item)
@@ -3,7 +3,6 @@ import { useDialog } from "@opencode/ui/context/dialog"
 import { Button } from "@opencode/ui/button"
 import { DialogFooter, DialogHeader, DialogTitleGroup, Dialog } from "@opencode/ui/dialog"
 import { skipToken, useQuery, useQueryClient } from "@tanstack/solid-query"
-import { DateTime } from "luxon"
 import { type Accessor, createEffect, createMemo, type JSX, startTransition, untrack } from "solid-js"
 import { notifySessionTabsRemoved } from "@/shell/titlebar/session-events"
 import { useCommand } from "@/shell/commands/command"
@@ -327,19 +326,19 @@ export function homeSessionSearchKey(record: HomeSessionRecord) {
  return `${pathKey(record.session.location.directory)}:${record.session.id}`
 }

+// Calendar day in the local time zone, comparable as a number.
+function localDay(date: Date) {
+  return date.getFullYear() * 10_000 + date.getMonth() * 100 + date.getDate()
+}
+
 function groupSessions(records: HomeSessionRecord[], language: ReturnType<typeof useLanguage>): HomeSessionGroup[] {
-  const now = DateTime.local()
-  const yesterday = now.minus({ days: 1 })
-  const todaySessions = records.filter((record) =>
-    DateTime.fromMillis(record.session.time.updated ?? record.session.time.created).hasSame(now, "day"),
-  )
-  const yesterdaySessions = records.filter((record) =>
-    DateTime.fromMillis(record.session.time.updated ?? record.session.time.created).hasSame(yesterday, "day"),
-  )
-  const olderSessions = records.filter((record) => {
-    const time = DateTime.fromMillis(record.session.time.updated ?? record.session.time.created)
-    return !time.hasSame(now, "day") && !time.hasSame(yesterday, "day")
-  })
+  const now = new Date()
+  const today = localDay(now)
+  const yesterday = localDay(new Date(now.getFullYear(), now.getMonth(), now.getDate() - 1))
+  const day = (record: HomeSessionRecord) => localDay(new Date(record.session.time.updated ?? record.session.time.created))
+  const todaySessions = records.filter((record) => day(record) === today)
+  const yesterdaySessions = records.filter((record) => day(record) === yesterday)
+  const olderSessions = records.filter((record) => day(record) !== today && day(record) !== yesterday)
  const olderTitle =
    todaySessions.length === 0 && yesterdaySessions.length === 0
      ? language.t("sidebar.project.recentSessions")
@@ -65,14 +65,14 @@
  }

  /* Keep the 1000px conversation intact, with 320px for the summary and its gutters.
-     Move only as far as needed; wider panels already have enough space in the margin. */
-  @container session-chat (min-width: 1320px) {
+     When they overlap, center the conversation in the space that remains beside the summary. */
+  @container session-chat (min-width: 1320px) and (width < 1640px) {
    [data-slot="session-chat-panel"][data-summary-open="true"]
      :is([data-timeline-virtual-content], [data-component="session-composer-dock"] > div) {
-      --session-summary-translate: min(0px, calc(50cqi - 820px));
+      --session-summary-translate: -160px;

      &:dir(rtl) {
-        --session-summary-translate: max(0px, calc(820px - 50cqi));
+        --session-summary-translate: 160px;
      }
    }
  }
@@ -1,18 +1,44 @@
-import type { FormAnswer, IntegrationMethod, IntegrationOauthConnectOutput } from "@opencode/client/promise"
+import type {
+  FormAnswer,
+  IntegrationInfo,
+  IntegrationMethod,
+  IntegrationOauthConnectOutput,
+} from "@opencode/client/promise"
 import { useLanguage } from "@/runtime/i18n/language"
 import { usePlatform } from "@/runtime/platform/platform"
 import { useServerSDK } from "@/runtime/server/client"
 import { useData } from "@/runtime/server/current"
-import { createEffect, createMemo, createResource, onCleanup } from "solid-js"
+import { createEffect, createMemo, on, onCleanup } from "solid-js"
 import { createStore, produce } from "solid-js/store"

 export type ProviderConnectMethod = Extract<IntegrationMethod, { type: "key" | "oauth" }>
 type Authorization = IntegrationOauthConnectOutput["data"]

+// OpenCode Go and OpenCode Zen both bill through the OpenCode Console, so the
+// Console sign-in is the connection method for both providers.
+export const CONSOLE_INTEGRATION = "opencode"
+export const CONSOLE_PROVIDERS = new Set(["opencode", "opencode-go"])
+
+export function consoleIntegration(provider: string) {
+  return CONSOLE_PROVIDERS.has(provider) ? CONSOLE_INTEGRATION : provider
+}
+
+function hiddenDefaults(method: ProviderConnectMethod | undefined) {
+  return Object.fromEntries(
+    (method?.form ?? []).flatMap((field) =>
+      field.type !== "external" && field.hidden && field.default !== undefined ? [[field.key, field.default]] : [],
+    ),
+  ) as FormAnswer
+}
+
 export function createProviderConnectionController(options: {
  provider: () => string
+  /** Integration that stores API keys when it differs from the one that lists methods and runs OAuth. */
+  keyProvider?: () => string
  directory: () => string | undefined
  onComplete: () => void
+  /** Picks the method to start without asking when the integration exposes several. */
+  autoSelect?: (methods: ProviderConnectMethod[]) => number | undefined
  pollInterval?: number
 }) {
  const language = useLanguage()
@@ -23,12 +49,28 @@ export function createProviderConnectionController(options: {
    const directory = options.directory()
    return directory ? { directory } : undefined
  }
-  const [integration] = createResource(
-    () => ({ provider: options.provider(), directory: options.directory() }),
-    (input) =>
-      serverSDK.api.integration
-        .get({ integrationID: input.provider, location: location() })
-        .then((result) => result.data),
+  // Not createResource: the dialog is owned by whichever page opened it, so reading a pending
+  // resource here would suspend that page's <Suspense> and blank the screen behind the dialog.
+  const [integration, setIntegration] = createStore({
+    loading: true,
+    latest: undefined as IntegrationInfo | undefined,
+  })
+  createEffect(
+    on(
+      () => ({ provider: options.provider(), directory: options.directory() }),
+      (input) => {
+        setIntegration({ loading: true, latest: undefined })
+        serverSDK.api.integration
+          .get({ integrationID: input.provider, location: location() })
+          .then((result) => result.data)
+          .catch(() => undefined)
+          .then((latest) => {
+            if (polling.disposed) return
+            if (input.provider !== options.provider() || input.directory !== options.directory()) return
+            setIntegration({ loading: false, latest })
+          })
+      },
+    ),
  )
  const methods = createMemo<ProviderConnectMethod[]>(() => {
    const values = integration.latest?.methods.filter(
@@ -41,17 +83,28 @@ export function createProviderConnectionController(options: {
    methodIndex: undefined as number | undefined,
    authorization: undefined as Authorization | undefined,
    formAnswer: undefined as FormAnswer | undefined,
-    state: "pending" as "pending" | "complete" | "error" | "form" | undefined,
+    // Nothing is in flight until a method is selected; `busy()` reads this, so a truthy initial
+    // value would keep multi-method providers on the spinner instead of the method list.
+    state: undefined as "pending" | "complete" | "error" | "form" | undefined,
    error: undefined as string | undefined,
+    auto: false,
  })
  const polling = {
    generation: 0,
    timer: undefined as ReturnType<typeof setTimeout> | undefined,
    disposed: false,
+    // An attempt the server still considers open; cancelled when the dialog goes away.
+    attempt: undefined as Authorization | undefined,
  }
  const currentMethod = createMemo(() =>
    store.methodIndex === undefined ? undefined : methods().at(store.methodIndex),
  )
+  const autoIndex = createMemo(() => {
+    if (integration.loading) return undefined
+    const values = methods()
+    if (values.length === 1) return 0
+    return options.autoSelect?.(values)
+  })

  type Action =
    | { type: "method.select"; index: number }
@@ -109,6 +162,14 @@ export function createProviderConnectionController(options: {
    )
  }

+  const cancelAttempt = () => {
+    const attempt = polling.attempt
+    polling.attempt = undefined
+    if (!attempt) return
+    void serverSDK.api.integration.oauth
+      .cancel({ integrationID: options.provider(), attemptID: attempt.attemptID, location: location() })
+      .catch(() => undefined)
+  }
  const cancelPolling = () => {
    polling.generation++
    if (polling.timer === undefined) return
@@ -117,6 +178,7 @@ export function createProviderConnectionController(options: {
  }
  const finish = async () => {
    cancelPolling()
+    polling.attempt = undefined
    const ref = location()
    data.location.integration.invalidate(ref)
    data.location.provider.invalidate(ref)
@@ -140,6 +202,7 @@ export function createProviderConnectionController(options: {
      .catch((error) => ({ ok: false as const, error }))
    if (polling.disposed || generation !== polling.generation) return
    if (!result.ok) {
+      polling.attempt = undefined
      dispatch({
        type: "auth.error",
        error: result.error instanceof Error ? result.error.message : String(result.error),
@@ -151,26 +214,35 @@ export function createProviderConnectionController(options: {
      return
    }
    if (result.status.status === "failed") {
+      polling.attempt = undefined
      dispatch({ type: "auth.error", error: result.status.message })
      return
    }
    if (result.status.status === "expired") {
-      dispatch({ type: "auth.error", error: language.t("common.requestFailed") })
+      polling.attempt = undefined
+      dispatch({ type: "auth.error", error: language.t("provider.connect.oauth.expired") })
      return
    }
    polling.timer = setTimeout(() => void poll(authorization, generation), options.pollInterval ?? 1_000)
  }
+  const open = () => {
+    const url = store.authorization?.url
+    if (url) platform.openExternal(url)
+  }
  const select = async (index: number, answer?: FormAnswer) => {
    cancelPolling()
+    cancelAttempt()
    const generation = polling.generation
    const selected = methods()[index]
    dispatch({ type: "method.select", index })
-    if (selected.form?.length && !answer) {
+    const visible = (selected.form ?? []).some((field) => field.type === "external" || !field.hidden)
+    if (visible && !answer) {
      dispatch({ type: "auth.form" })
      return
    }
+    const merged = { ...hiddenDefaults(selected), ...answer }
    if (selected.type === "key") {
-      dispatch({ type: "auth.answer", answer })
+      dispatch({ type: "auth.answer", answer: Object.keys(merged).length ? merged : undefined })
      return
    }
    if (selected.type !== "oauth") return
@@ -183,11 +255,11 @@ export function createProviderConnectionController(options: {
      .connect({
        integrationID: options.provider(),
        methodID: selected.id,
-        ...(answer ? { answer } : {}),
+        ...(Object.keys(merged).length ? { answer: merged } : {}),
        location: location(),
      })
      .then((response) => {
-        if (options.provider() === "opencode" && platform.platform === "desktop") {
+        if (options.provider() === CONSOLE_INTEGRATION && platform.platform === "desktop") {
          const url = new URL(response.data.url)
          url.searchParams.set("client_id", "opencode-desktop")
          response.data.url = url.href
@@ -195,21 +267,44 @@ export function createProviderConnectionController(options: {
        return { ok: true as const, authorization: response.data }
      })
      .catch((error) => ({ ok: false as const, error }))
-    if (polling.disposed || generation !== polling.generation) return
-    if (!result.ok) {
-      dispatch({ type: "auth.error", error: String(result.error) })
+    if (polling.disposed || generation !== polling.generation) {
+      if (result.ok)
+        void serverSDK.api.integration.oauth
+          .cancel({
+            integrationID: options.provider(),
+            attemptID: result.authorization.attemptID,
+            location: location(),
+          })
+          .catch(() => undefined)
      return
    }
+    if (!result.ok) {
+      dispatch({
+        type: "auth.error",
+        error: result.error instanceof Error ? result.error.message : String(result.error),
+      })
+      return
+    }
+    polling.attempt = result.authorization
    dispatch({ type: "auth.complete", authorization: result.authorization })
+    // Same as `opencode auth login`: hand the user straight to the browser instead of
+    // asking them to click a link and retype a code.
+    platform.openExternal(result.authorization.url)
    if (result.authorization.mode === "auto") void poll(result.authorization, generation)
  }
+  const retry = () => {
+    const index = store.methodIndex
+    if (index === undefined) return
+    void select(index, store.formAnswer)
+  }
  const reset = () => {
    cancelPolling()
+    cancelAttempt()
    dispatch({ type: "method.reset" })
  }
  const connectKey = async (key: string) => {
    await serverSDK.api.integration.connect.key({
-      integrationID: options.provider(),
+      integrationID: options.keyProvider?.() ?? options.provider(),
      location: location(),
      key,
      ...(store.formAnswer ? { answer: store.formAnswer } : {}),
@@ -236,15 +331,16 @@ export function createProviderConnectionController(options: {
    return undefined
  }

-  let auto = false
  createEffect(() => {
-    if (auto || integration.loading || methods().length !== 1) return
-    auto = true
-    void select(0)
+    const index = autoIndex()
+    if (store.auto || index === undefined) return
+    setStore("auto", true)
+    void select(index)
  })
  onCleanup(() => {
    polling.disposed = true
    cancelPolling()
+    cancelAttempt()
  })

  return {
@@ -254,11 +350,19 @@ export function createProviderConnectionController(options: {
    currentMethod,
    methodIndex: () => store.methodIndex,
    authorization: () => store.authorization,
+    // True while nothing useful can be shown yet: the integration is loading, a method is
+    // about to be picked automatically, or the authorization request is in flight.
+    busy: () =>
+      integration.loading ||
+      (store.methodIndex === undefined && !store.auto && autoIndex() !== undefined) ||
+      store.state === "pending",
    auth: {
      state: () => store.state,
      error: () => store.error,
      select,
      reset,
+      retry,
+      open,
      connectKey,
      completeCode,
    },
@@ -8,16 +8,23 @@ import { TextField } from "@opencode/ui/text-field"
 import { DialogBody, DialogHeader, DialogTitle, Dialog } from "@opencode/ui/dialog"
 import { TextInput } from "@opencode/ui/text-input"
 import { showToast } from "@/shell/notifications/toast"
-import { type Component, createMemo, createUniqueId, For, Match, onMount, Show, Switch } from "solid-js"
+import { type Component, createMemo, createUniqueId, For, type JSX, Match, onMount, Show, Switch } from "solid-js"
 import { createStore } from "solid-js/store"
 import { useParams } from "@solidjs/router"
 import { ExternalLink } from "@/runtime/platform/external-link"
 import { useLanguage } from "@/runtime/i18n/language"
+import { useData } from "@/runtime/server/current"
+import { useGlobal } from "@/runtime/server/runtime"
 import { useProviders } from "@/providers/catalog/providers"
 import { useIntegrations } from "@/providers/catalog/integrations"
 import { CustomProviderForm } from "@/providers/credentials/dialog"
 import { decode64 } from "@/runtime/persistence/base64"
-import { createProviderConnectionController, type ProviderConnectMethod } from "./controller"
+import {
+  CONSOLE_PROVIDERS,
+  consoleIntegration,
+  createProviderConnectionController,
+  type ProviderConnectMethod,
+} from "./controller"

 const CUSTOM_ID = "_custom"
 type IntegrationForm = NonNullable<ProviderConnectMethod["form"]>[number]
@@ -258,13 +265,42 @@ function ProviderConnection(props: {
  const dialog = useDialog()
  const params = useParams()
  const language = useLanguage()
+  const data = useData()
+  const global = useGlobal()
  const providers = useProviders(() => props.directory)
+  const integrations = useIntegrations(() => props.directory)
  const directory = () => props.directory ?? decode64(params.dir)
+  const location = () => {
+    const value = directory()
+    return value ? { directory: value } : undefined
+  }
+  const integrationID = () => consoleIntegration(props.provider)
+  const isConsole = () => CONSOLE_PROVIDERS.has(props.provider)

  const controller = createProviderConnectionController({
-    provider: () => props.provider,
+    provider: integrationID,
+    // A Go service-account key still belongs to the `opencode-go` integration (zen/go/v1),
+    // exactly as before; only the sign-in is shared with the Console.
+    keyProvider: () => props.provider,
    directory,
+    autoSelect: (methods) => {
+      if (!isConsole()) return undefined
+      const index = methods.findIndex((method) => method.type === "oauth")
+      return index === -1 ? undefined : index
+    },
    onComplete: () => {
+      // The picker only lists the newest model per family by default, which hides most of
+      // what a new connection just unlocked. Show everything the connected integration offers.
+      // Console sign-in returns Go models inside the `opencode` provider, so this covers Go too.
+      const linked = (data.location.provider.list(location()) ?? []).filter(
+        (item) => item.id === props.provider || item.integrationID === integrationID(),
+      )
+      const ids = new Set(linked.map((item) => item.id))
+      global.models.show(
+        (data.location.model.list(location()) ?? [])
+          .filter((model) => ids.has(model.providerID) && model.status !== "deprecated")
+          .map((model) => ({ providerID: model.providerID, modelID: model.id })),
+      )
      dialog.close()
      showToast({
        variant: "success",
@@ -276,7 +312,11 @@ function ProviderConnection(props: {
  })
  const provider = createMemo(() => ({
    id: props.provider,
-    name: providers.all().get(props.provider)?.name ?? controller.integration()?.name ?? props.provider,
+    name:
+      integrations.list().find((item) => item.id === props.provider)?.name ??
+      providers.all().get(props.provider)?.name ??
+      controller.integration()?.name ??
+      props.provider,
  }))
  const methodLabel = (value?: { type?: string; label?: string }) => {
    if (!value) return ""
@@ -298,6 +338,13 @@ function ProviderConnection(props: {
            : undefined,
    }
  }
+  const code = createMemo(() => {
+    const instructions = controller.authorization()?.instructions
+    if (instructions?.includes(":")) return instructions.split(":").pop()?.trim()
+    return instructions
+  })
+  const keyIndex = () => controller.methods().findIndex((method) => method.type === "key")
+  const oauthIndex = () => controller.methods().findIndex((method) => method.type === "oauth")

  function AuthFormView() {
    const [formStore, setFormStore] = createStore({
@@ -307,7 +354,7 @@ function ProviderConnection(props: {

    const fields = createMemo<StringForm[]>(() => {
      const value = controller.currentMethod()
-      return (value?.form ?? []).flatMap((field) => (field.type === "string" ? [field] : []))
+      return (value?.form ?? []).flatMap((field) => (field.type === "string" && !field.hidden ? [field] : []))
    })
    const matches = (field: StringForm, value: Record<string, string>) => {
      return (field.when ?? []).every((condition) => {
@@ -364,7 +411,7 @@ function ProviderConnection(props: {
    })

    return (
-      <form onSubmit={handleSubmit} class="flex flex-col items-start gap-4">
+      <form onSubmit={handleSubmit} class="flex flex-col items-start gap-4 px-3">
        <Switch>
          <Match when={item()?.field.options === undefined}>
            <TextField
@@ -422,7 +469,13 @@ function ProviderConnection(props: {
  }

  function goBack() {
-    if (controller.methods().length > 1 && controller.methodIndex() !== undefined) {
+    // The API key path for the Console is an escape hatch below the sign-in flow, so
+    // "back" returns to the sign-in rather than leaving the provider.
+    if (isConsole() && controller.currentMethod()?.type === "key" && oauthIndex() !== -1) {
+      void controller.auth.select(oauthIndex())
+      return
+    }
+    if (!isConsole() && controller.methods().length > 1 && controller.methodIndex() !== undefined) {
      controller.auth.reset()
      return
    }
@@ -463,6 +516,31 @@ function ProviderConnection(props: {
    )
  }

+  function StatusRow(input: { children: JSX.Element }) {
+    return (
+      <div class="flex items-center gap-2 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
+        <Spinner class="size-4 shrink-0 text-v2-icon-icon-muted" />
+        <span>{input.children}</span>
+      </div>
+    )
+  }
+
+  function ErrorRow() {
+    return (
+      <div class="flex flex-col items-start gap-3">
+        <div class="flex items-start gap-2 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base">
+          <Icon name="circle-ban-sign" size="small" class="mt-0.5 shrink-0 text-v2-state-fg-danger" />
+          <span role="alert">
+            {language.t("provider.connect.status.failed", { error: controller.auth.error() ?? "" })}
+          </span>
+        </div>
+        <Button variant="neutral" onClick={() => controller.auth.retry()}>
+          {language.t("common.retry")}
+        </Button>
+      </div>
+    )
+  }
+
  function ApiAuthView() {
    let apiKey: HTMLInputElement | undefined
    const errorID = createUniqueId()
@@ -494,22 +572,17 @@ function ProviderConnection(props: {
    return (
      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
        <Show
-          when={provider().id === "opencode"}
+          when={isConsole()}
          fallback={language.t("provider.connect.apiKey.description", { provider: provider().name })}
        >
-          <div class="flex flex-col gap-5">
-            <div>{language.t("provider.connect.opencodeZen.line1")}</div>
-            <div>{language.t("provider.connect.opencodeZen.line2")}</div>
-            <div>
-              {language.t("provider.connect.opencodeZen.visit.prefix")}
-              <ExternalLink
-                href="https://opencode.ai/zen"
-                class="text-v2-text-text-base focus-visible:rounded-xs focus-visible:outline-2 focus-visible:outline-v2-border-border-focus"
-              >
-                {language.t("provider.connect.opencodeZen.visit.link")}
-              </ExternalLink>
-              {language.t("provider.connect.opencodeZen.visit.suffix")}
-            </div>
+          <div>
+            {language.t("provider.connect.console.apiKey.description")}{" "}
+            <ExternalLink
+              href="https://opencode.ai/console"
+              class="text-v2-text-text-base focus-visible:rounded-xs focus-visible:outline-2 focus-visible:outline-v2-border-border-focus"
+            >
+              {language.t("provider.connect.console.apiKey.link")}
+            </ExternalLink>
          </div>
        </Show>
        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
@@ -574,13 +647,10 @@ function ProviderConnection(props: {

    return (
      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
-        <div>
-          {language.t("provider.connect.oauth.code.visit.prefix")}
-          <ExternalLink href={controller.authorization()!.url} class="text-v2-text-text-base">
-            {language.t("provider.connect.oauth.code.visit.link")}
-          </ExternalLink>
-          {language.t("provider.connect.oauth.code.visit.suffix", { provider: provider().name })}
-        </div>
+        <div>{language.t("provider.connect.oauth.code.description", { provider: provider().name })}</div>
+        <Button variant="neutral" icon="arrow-up-right" onClick={() => controller.auth.open()}>
+          {language.t("provider.connect.oauth.openBrowser")}
+        </Button>
        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
          <label class="flex w-full flex-col gap-1 font-[530] leading-4 text-v2-text-text-base">
            {language.t("provider.connect.oauth.code.label", { method: controller.currentMethod()?.label ?? "" })}
@@ -613,34 +683,71 @@ function ProviderConnection(props: {
  }

  function OAuthAutoView() {
-    const code = createMemo(() => {
-      const instructions = controller.authorization()?.instructions
-      if (instructions?.includes(":")) {
-        return instructions.split(":").pop()?.trim()
-      }
-      return instructions
-    })
-
    return (
-      <div class="flex flex-col gap-6">
-        <div class="text-14-regular text-text-base">
-          {language.t("provider.connect.oauth.auto.visit.prefix")}
-          <ExternalLink href={controller.authorization()!.url}>
-            {language.t("provider.connect.oauth.auto.visit.link")}
-          </ExternalLink>
-          {language.t("provider.connect.oauth.auto.visit.suffix", { provider: provider().name })}
+      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
+        <div>{language.t("provider.connect.oauth.auto.description", { provider: provider().name })}</div>
+        <StatusRow>{language.t("provider.connect.status.waiting")}</StatusRow>
+        <div class="flex flex-wrap items-center gap-2">
+          <Button variant="neutral" icon="arrow-up-right" onClick={() => controller.auth.open()}>
+            {language.t("provider.connect.oauth.openBrowser")}
+          </Button>
+        </div>
+        <Show when={code()}>
+          {(value) => (
+            <TextField
+              label={language.t("provider.connect.oauth.auto.confirmationCode")}
+              description={language.t("provider.connect.oauth.auto.confirmationCode.description")}
+              class="font-mono"
+              value={value()}
+              readOnly
+              copyable
+            />
+          )}
+        </Show>
+      </div>
+    )
+  }
+
+  // Rendered from the first frame of the Console sign-in, before the attempt exists. Only the
+  // status line changes once the browser opens, so nothing around it moves.
+  function ConsoleSignInView() {
+    const ready = () => controller.authorization()?.url !== undefined
+    return (
+      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
+        <div>{language.t("provider.connect.console.description", { provider: provider().name })}</div>
+        <StatusRow>
+          {language.t(ready() ? "provider.connect.status.waiting" : "provider.connect.console.opening")}
+        </StatusRow>
+        <div class="flex flex-wrap items-center gap-2">
+          <Button variant="neutral" icon="arrow-up-right" disabled={!ready()} onClick={() => controller.auth.open()}>
+            {language.t("provider.connect.oauth.openBrowser")}
+          </Button>
        </div>
        <TextField
          label={language.t("provider.connect.oauth.auto.confirmationCode")}
+          description={language.t("provider.connect.oauth.auto.confirmationCode.description")}
          class="font-mono"
-          value={code()}
+          value={code() ?? ""}
+          placeholder={language.t("provider.connect.console.code.placeholder")}
          readOnly
-          copyable
+          copyable={code() !== undefined}
        />
-        <div class="text-14-regular text-text-base flex items-center gap-4">
-          <Spinner />
-          <span>{language.t("provider.connect.status.waiting")}</span>
-        </div>
+      </div>
+    )
+  }
+
+  // Deliberately quiet: most people should never need a key, so this stays small and at the bottom.
+  function ConsoleApiKeySwitch() {
+    return (
+      <div class="mt-auto flex justify-end px-3 pt-4 text-[11px] leading-4 text-v2-text-text-muted">
+        <button
+          type="button"
+          data-action="provider-connect-api-key"
+          class="rounded-xs px-1 underline decoration-v2-border-border-base underline-offset-2 hover:text-v2-text-text-base focus-visible:outline-2 focus-visible:outline-v2-border-border-focus"
+          onClick={() => void controller.auth.select(keyIndex())}
+        >
+          {language.t("provider.connect.console.apiKey.switch")}
+        </button>
      </div>
    )
  }
@@ -661,53 +768,48 @@ function ProviderConnection(props: {
        </div>
      </div>
      <div class="flex min-h-0 flex-1 flex-col">
-        <div>
-          <Switch>
-            <Match when={controller.loading()}>
-              <div class="text-14-regular text-text-base">
-                <div class="flex items-center gap-x-2">
-                  <Spinner />
-                  <span>{language.t("provider.connect.status.inProgress")}</span>
-                </div>
-              </div>
-            </Match>
-            <Match when={controller.methodIndex() === undefined}>
-              <MethodSelection />
-            </Match>
-            <Match when={controller.auth.state() === "pending"}>
-              <div class="text-14-regular text-text-base">
-                <div class="flex items-center gap-x-2">
-                  <Spinner />
-                  <span>{language.t("provider.connect.status.inProgress")}</span>
-                </div>
-              </div>
-            </Match>
-            <Match when={controller.auth.state() === "form"}>
-              <AuthFormView />
-            </Match>
-            <Match when={controller.auth.state() === "error"}>
-              <div class="text-14-regular text-text-base">
-                <div class="flex items-center gap-x-2">
-                  <Icon name="circle-ban-sign" class="text-icon-critical-base" />
-                  <span>{language.t("provider.connect.status.failed", { error: controller.auth.error() ?? "" })}</span>
-                </div>
-              </div>
-            </Match>
-            <Match when={controller.currentMethod()?.type === "key"}>
-              <ApiAuthView />
-            </Match>
-            <Match when={controller.currentMethod()?.type === "oauth"}>
-              <Switch>
-                <Match when={controller.authorization()?.mode === "code"}>
-                  <OAuthCodeView />
-                </Match>
-                <Match when={controller.authorization()?.mode === "auto"}>
-                  <OAuthAutoView />
-                </Match>
-              </Switch>
-            </Match>
-          </Switch>
-        </div>
+        <Switch>
+          <Match
+            when={
+              isConsole() &&
+              controller.currentMethod()?.type !== "key" &&
+              controller.auth.state() !== "error" &&
+              (controller.busy() || controller.authorization()?.mode === "auto")
+            }
+          >
+            <ConsoleSignInView />
+          </Match>
+          <Match when={controller.busy()}>
+            <div class="px-3">
+              <StatusRow>{language.t("provider.connect.status.inProgress")}</StatusRow>
+            </div>
+          </Match>
+          <Match when={controller.methodIndex() === undefined}>
+            <MethodSelection />
+          </Match>
+          <Match when={controller.auth.state() === "form"}>
+            <AuthFormView />
+          </Match>
+          <Match when={controller.auth.state() === "error"}>
+            <div class="px-3">
+              <ErrorRow />
+            </div>
+          </Match>
+          <Match when={controller.currentMethod()?.type === "key"}>
+            <ApiAuthView />
+          </Match>
+          <Match when={controller.authorization()?.mode === "code"}>
+            <OAuthCodeView />
+          </Match>
+          <Match when={controller.authorization()?.mode === "auto"}>
+            <OAuthAutoView />
+          </Match>
+        </Switch>
+        <Show
+          when={isConsole() && !controller.loading() && controller.currentMethod()?.type !== "key" && keyIndex() !== -1}
+        >
+          <ConsoleApiKeySwitch />
+        </Show>
      </div>
    </div>
  )
@@ -1,5 +1,4 @@
 import { type Accessor, createMemo } from "solid-js"
-import { DateTime } from "luxon"
 import { filter, firstBy, flat, groupBy, mapValues, pipe, uniqueBy, values } from "remeda"
 import { createSimpleContext } from "@opencode/ui/context"
 import { useProviders } from "@/providers/catalog/providers"
@@ -9,6 +8,8 @@ export type ModelKey = { providerID: string; modelID: string }

 type Visibility = "show" | "hide"
 const RECENT_LIMIT = 5
+// luxon's diffNow().as("months") used an average month; keep the same window.
+const sixMonths = 6 * 30.436875 * 24 * 60 * 60 * 1000

 function modelKey(model: ModelKey) {
  return `${model.providerID}:${model.modelID}`
@@ -29,27 +30,23 @@ const createModelsController = (directory: Accessor<string | undefined>) => {
    ),
  )

+  // Release dates as epoch ms; an unparseable date is NaN and never counts as recent.
  const release = createMemo(
    () =>
      new Map(
-        available().map((model) => {
-          const parsed = DateTime.fromISO(model.release_date)
-          return [modelKey({ providerID: model.provider.id, modelID: model.id }), parsed] as const
-        }),
+        available().map(
+          (model) => [modelKey({ providerID: model.provider.id, modelID: model.id }), Date.parse(model.release_date)] as const,
+        ),
      ),
  )

  const latest = createMemo(() =>
    pipe(
      available(),
-      filter(
-        (x) =>
-          Math.abs(
-            (release().get(modelKey({ providerID: x.provider.id, modelID: x.id })) ?? DateTime.invalid("invalid"))
-              .diffNow()
-              .as("months"),
-          ) < 6,
-      ),
+      filter((x) => {
+        const released = release().get(modelKey({ providerID: x.provider.id, modelID: x.id })) ?? NaN
+        return Math.abs(Date.now() - released) < sixMonths
+      }),
      groupBy((x) => x.provider.id),
      mapValues((models) =>
        pipe(
@@ -101,9 +98,8 @@ const createModelsController = (directory: Accessor<string | undefined>) => {
    if (state === "hide") return false
    if (state === "show") return true
    if (latestSet().has(key)) return true
-    const date = release().get(key)
-    if (!date?.isValid) return true
-    return false
+    // Models without a parseable release date stay visible.
+    return !Number.isFinite(release().get(key) ?? NaN)
  }

  const setVisibility = (model: ModelKey, state: boolean) => {
@@ -87,6 +87,7 @@ export const dict = {
  "command.project.index": "Switch to project {{index}}",
  "command.project.copyID": "Copy Project ID",
  "command.provider.connect": "Connect provider",
+  "command.provider.connect.description": "Sign in to OpenCode Go, OpenCode Console, or another model provider",
  "command.server.switch": "Switch server",
  "command.settings.open": "Open settings",
  "command.session.previous": "Previous session",
@@ -151,6 +152,8 @@ export const dict = {
  "command.session.compact.description": "Summarize the session to reduce context size",
  "command.session.fork": "Fork from message",
  "command.session.fork.description": "Create a new session from a previous message",
+  "command.session.btw": "Ask a side question",
+  "command.session.btw.description": "Get a one-shot answer without adding to the conversation",
  "command.session.export": "Export session",
  "command.session.export.description": "Export the full session transcript as JSON",
  "command.session.import": "Import session",
@@ -225,6 +228,22 @@ export const dict = {
  "provider.connect.oauth.auto.visit.suffix":
    " and enter the code below to connect your account and use {{provider}} models in OpenCode.",
  "provider.connect.oauth.auto.confirmationCode": "Confirmation code",
+  "provider.connect.oauth.auto.confirmationCode.description":
+    "Check that your browser shows the same code before you authorize.",
+  "provider.connect.oauth.auto.description":
+    "Your browser opens so you can sign in to {{provider}}. Come back here when you are done.",
+  "provider.connect.oauth.code.description":
+    "Your browser opens so you can sign in to {{provider}}. Paste the authorization code it gives you below.",
+  "provider.connect.oauth.openBrowser": "Open browser",
+  "provider.connect.oauth.expired": "Authorization expired",
+  "provider.connect.console.description":
+    "Sign in with your OpenCode Console account. Your browser opens to the Console, where you pick a workspace and select Authorize.",
+  "provider.connect.console.opening": "Opening your browser…",
+  "provider.connect.console.code.placeholder": "Requesting a code…",
+  "provider.connect.console.apiKey.switch": "Connect with an API key or service account instead",
+  "provider.connect.console.apiKey.description":
+    "Paste an API key for a service account. You create service accounts in the OpenCode Console under Keys.",
+  "provider.connect.console.apiKey.link": "Open the Console",
  "provider.connect.toast.connected.title": "{{provider}} connected",
  "provider.connect.toast.connected.description": "{{provider}} models are now available to use.",

@@ -302,6 +321,7 @@ export const dict = {
  "common.connect": "Connect",
  "common.disconnect": "Disconnect",
  "common.continue": "Continue",
+  "common.retry": "Try again",
  "common.submit": "Submit",
  "common.save": "Save",
  "common.saving": "Saving…",
@@ -440,6 +460,19 @@ export const dict = {
    "No camera is available to this browser. Enter your connection details manually.",
  "server.connect.camera.error":
    "Could not open the camera. Allow camera access or enter your connection details manually.",
+  "command.server.pair": "Pair device",
+  "settings.pairing.title": "Pairing",
+  "settings.pairing.connection": "Local Network",
+  "pair.local.description": "View connection details and a QR code to connect a device on the same network.",
+  "pair.local.open": "Show details",
+  "pair.screenActive.title": "Keep screen active",
+  "pair.screenActive.description": "Prevent this computer’s display from sleeping while OpenCode is running.",
+  "pair.screenActive.error": "Could not update the screen activity setting. Try again.",
+  "pair.description": "Connect another device to this machine's OpenCode server.",
+  "pair.qr": "Pairing QR code",
+  "pair.copy": "Copy details",
+  "pair.copy.error": "Could not copy pairing details. Try again.",
+  "pair.error": "Could not update pairing details. Try again.",
  "dialog.server.edit.title": "Edit server",
  "dialog.server.default.title": "Default server",
  "dialog.server.default.description":
@@ -625,6 +658,16 @@ export const dict = {
  "toast.file.loadFailed.title": "Failed to load file",
  "file.error.notFound": "File not found: {{name}}",
  "toast.file.listFailed.title": "Failed to list files",
+  "file.view.preview": "Preview",
+  "file.view.source": "Source",
+  "file.view.openInBrowser": "Open in browser",
+  "file.view.binary": "Binary file · {{size}}",
+  "file.view.table.rows.one": "{{count}} row",
+  "file.view.table.rows.other": "{{count}} rows",
+  "file.view.table.columns.one": "{{count}} column",
+  "file.view.table.columns.other": "{{count}} columns",
+  "file.view.table.truncated": "Showing the first {{shown}} of {{total}} rows.",
+  "file.view.fontSample": "Sphinx of black quartz, judge my vow.",

  "toast.context.noLineSelection.title": "No line selection",
  "toast.context.noLineSelection.description": "Select a line range in a file tab first.",
@@ -746,6 +789,7 @@ export const dict = {
  "session.tab.browser": "Browser",
  "session.tab.add": "Add tab",
  "session.tab.context": "Context",
+  "session.tab.btw": "/btw",
  "session.tab.unknown": "Unknown Session",
  "session.panel.reviewAndFiles": "Review and files",
  "session.error.notFound": "This session cannot be found",
@@ -906,6 +950,10 @@ export const dict = {
  "session.browser.replaced": "Browser control moved to another desktop window.",
  "session.browser.suspended": "Browser suspended. Interact with this session to reconnect.",
  "session.browser.address.placeholder": "Enter URL",
+  "session.browser.empty.title": "Enter URL",
+  "session.browser.empty.description": 'Or prompt "Open in the app browser"',
+  "session.browser.failed.title": "URL can't be reached",
+  "session.browser.failed.description": "Check the URL and your connection, then try again.",

  "titlebar.update": "Update",
  "titlebar.tabs": "Tabs",
@@ -919,6 +967,10 @@ export const dict = {
  "common.dismiss": "Dismiss",
  "common.moreCountSuffix": " (+{{count}} more)",
  "common.requestFailed": "Request failed",
+  "session.btw.questionRequired": "Add a question after /btw",
+  "session.btw.error": "Couldn’t answer that question",
+  "session.btw.retry": "Retry",
+  "session.btw.copy": "Copy answer",
  "common.moreOptions": "More options",
  "common.learnMore": "Learn more",
  "common.rename": "Rename",
@@ -1335,6 +1387,7 @@ export const dict = {
  "settings.providers.tag.environment": "Environment",
  "settings.providers.tag.config": "Config",
  "settings.providers.tag.custom": "Custom",
+  "settings.providers.tag.account": "Account",
  "settings.providers.tag.other": "Other",
  "settings.models.title": "Models",
  "settings.models.description": "Choose which models appear in model picker",
@@ -19,6 +19,7 @@ export type BrowserPaneCommand = Browser.Action
 export type BrowserPaneState = Browser.State | null
 export type BrowserPaneEvent =
  | { type: "focus"; tabID: Browser.TabID }
+  | { type: "preview"; path: string }
  | { type: "state"; state: BrowserPaneState; error?: string }

 export type BrowserPaneRegistration = {
@@ -22,6 +22,12 @@ type SaveFilePickerOptions = { title?: string; defaultPath?: string }
 type PlatformName = "web" | "desktop"
 type DesktopOS = "macos" | "windows" | "linux"

+export type PairingInfo = {
+  readonly urls: readonly string[]
+  readonly username: "opencode"
+  readonly password: string
+}
+
 export type FatalRendererErrorLog = {
  error: string
  url: string
@@ -101,6 +107,10 @@ type PlatformBase = {
  /** Allow native pinch/Ctrl-scroll zoom gestures (desktop only) */
  setPinchZoomEnabled?(enabled: boolean): Promise<void> | void

+  /** Prevent the local display from sleeping while the desktop app is running. */
+  getKeepScreenActive?(): Promise<boolean>
+  setKeepScreenActive?(enabled: boolean): Promise<void>
+
  /** Run a desktop-only menu action from the app chrome */
  runDesktopMenuAction?(action: DesktopMenuAction): Promise<void> | void

@@ -124,6 +134,11 @@ type PlatformBase = {

  /** Native browser pane hosted by the platform (desktop only). */
  browserPane?: BrowserPanePlatform
+
+  /** Pair another device with the local desktop server. */
+  pair?: {
+    info(): Promise<PairingInfo>
+  }
 }

 export type Platform = PlatformBase &
@@ -51,6 +51,7 @@ export function normalizeProviderList(
  for (const provider of providers) {
    all.set(provider.id, {
      id: provider.id,
+      integrationID: provider.integrationID,
      name: provider.name,
      source: "custom",
      env: [],
@@ -1,5 +1,5 @@
 import { createSimpleContext } from "@opencode/ui/context"
-import { Accessor, createEffect, createMemo, createResource, createRoot, getOwner } from "solid-js"
+import { Accessor, batch, createEffect, createMemo, createResource, createRoot, getOwner } from "solid-js"
 import { createServerProjects, RECENTLY_CLOSED_DISPLAY_LIMIT, ServerConnection, useServers } from "./registry"
 import { pathKey } from "@/workspaces/path-key"
 import { useServerHealth } from "@/runtime/server/health"
@@ -98,6 +98,25 @@ function createGlobalModels() {
    set: setStore,
    ready,
    recent: () => recent()!,
+    // Marks models visible in the picker regardless of the "latest per family" default.
+    show(models: ReadonlyArray<{ providerID: string; modelID: string }>) {
+      const seen = new Map(store.user.map((item, index) => [`${item.providerID}:${item.modelID}`, index]))
+      batch(() => {
+        for (const model of models) {
+          const index = seen.get(`${model.providerID}:${model.modelID}`)
+          if (index !== undefined) {
+            setStore("user", index, "visibility", "show")
+            continue
+          }
+          seen.set(`${model.providerID}:${model.modelID}`, store.user.length)
+          setStore("user", store.user.length, {
+            providerID: model.providerID,
+            modelID: model.modelID,
+            visibility: "show",
+          })
+        }
+      })
+    },
  }
 }

@@ -33,6 +33,8 @@ export type FileContent = {
  }
  encoding?: "base64"
  mimeType?: string
+  /** On-disk size when the bytes themselves are not retained. */
+  size?: number
 }

 export type Path = {
@@ -127,6 +129,8 @@ export type Model = {

 export type Provider = {
  id: string
+  /** Integration that connects this provider; differs from `id` for Console-managed providers. */
+  integrationID?: string
  name: string
  source: "env" | "config" | "custom" | "api"
  env: string[]
@@ -0,0 +1,95 @@
+import { describe, expect, test } from "bun:test"
+import { decodePairingCode, decodePairingScan, decodePairingUrl, pairingUrl } from "./pairing"
+
+describe("pairing URL", () => {
+  test("pairs with the current origin using credentials without server URLs", () => {
+    const info = { username: "opencode" as const, password: "a+b & café" }
+    const origin = "https://opencode.example.com:49709"
+    const url = new URL(pairingUrl(info, origin))
+
+    expect(url.origin).toBe(origin)
+    expect(url.pathname).toBe("/connect")
+    expect(url.search).toBe("")
+    expect(url.hash).not.toBe("")
+    expect(decodePairingUrl(url.hash, origin)).toEqual({ urls: [origin], password: info.password })
+    expect(decodePairingCode(JSON.stringify(info))).toBeUndefined()
+  })
+
+  test("keeps accepting query pairing data", () => {
+    const info = { urls: ["http://192.168.1.2:4096"], username: "opencode", password: "a+b & café" }
+    expect(decodePairingUrl(`?data=${encodeURIComponent(JSON.stringify(info))}`)).toEqual({
+      urls: info.urls,
+      password: info.password,
+    })
+  })
+
+  test("accepts CLI base64url fragments", () => {
+    const value = { urls: ["http://localhost:4096"], username: "opencode", password: "a+b & café" }
+    expect(decodePairingUrl(`#${Buffer.from(JSON.stringify(value)).toString("base64url")}`)).toEqual({
+      urls: value.urls,
+      password: value.password,
+    })
+  })
+
+  test("rejects invalid query data", () => {
+    expect(decodePairingUrl("?data=invalid")).toBeUndefined()
+    expect(decodePairingUrl("?other=value")).toBeUndefined()
+  })
+
+  test("accepts legacy JSON fragments", () => {
+    const value = { urls: ["http://localhost:4096"], username: "opencode", password: "secret" }
+    expect(decodePairingUrl(`#${encodeURIComponent(JSON.stringify(value))}`)).toEqual({
+      urls: value.urls,
+      password: value.password,
+    })
+  })
+
+  test("rejects an invalid fragment", () => {
+    expect(decodePairingUrl("#not-a-pairing-code")).toBeUndefined()
+  })
+})
+
+describe("pairing scan", () => {
+  const info = {
+    urls: ["http://192.168.1.2:49374", "http://127.0.0.1:49374"],
+    username: "opencode" as const,
+    password: "a+b & café",
+  }
+
+  test("decodes the raw JSON code", () => {
+    expect(decodePairingScan(JSON.stringify(info))).toEqual({ urls: info.urls, password: info.password })
+  })
+
+  test("decodes a direct /connect URL", () => {
+    expect(
+      decodePairingScan(pairingUrl({ username: info.username, password: info.password }, "http://192.168.1.2:49374")),
+    ).toEqual({
+      urls: ["http://192.168.1.2:49374"],
+      password: info.password,
+    })
+  })
+
+  test("keeps accepting /connect URLs with query data", () => {
+    expect(
+      decodePairingScan(`http://192.168.1.2:49374/connect?data=${encodeURIComponent(JSON.stringify(info))}`),
+    ).toEqual({
+      urls: info.urls,
+      password: info.password,
+    })
+  })
+
+  test("falls back to the URL origin when the payload omits server URLs", () => {
+    const origin = "https://opencode.example.com:49709"
+    expect(decodePairingScan(pairingUrl({ username: "opencode", password: "secret" }, origin))).toEqual({
+      urls: [origin],
+      password: "secret",
+    })
+  })
+
+  test("rejects URLs without pairing data and non-http schemes", () => {
+    expect(decodePairingScan("http://192.168.1.2:49374/connect")).toBeUndefined()
+    expect(decodePairingScan("https://example.com/?data=invalid")).toBeUndefined()
+    expect(decodePairingScan("opencode-ios://connect?password=secret")).toBeUndefined()
+    expect(decodePairingScan("not a code")).toBeUndefined()
+  })
+})
@@ -1,9 +1,10 @@
 import { Option, Schema } from "effect"
+import { base64Encode } from "@opencode/util/encode"
 import { normalizeServerUrl } from "@/runtime/server/registry"

 const pairing = Schema.fromJsonString(
  Schema.Struct({
-    urls: Schema.Array(Schema.String),
+    urls: Schema.optional(Schema.Array(Schema.String)),
    username: Schema.Literal("opencode"),
    password: Schema.String,
  }),
@@ -19,10 +20,42 @@ export function serverAddress(value: string) {
  return normalized
 }

-export function decodePairingCode(value: string) {
+export function decodePairingCode(value: string, origin?: string) {
  const result = Schema.decodeUnknownOption(pairing)(value)
  if (Option.isNone(result)) return
-  const urls = [...new Set(result.value.urls.map(serverAddress).filter((url) => url !== undefined))]
+  const urls = [
+    ...new Set((result.value.urls ?? (origin ? [origin] : [])).map(serverAddress).filter((url) => url !== undefined)),
+  ]
  if (!urls.length) return
  return { urls, password: result.value.password }
 }
+
+export function pairingUrl(value: { username: "opencode"; password: string }, host: string) {
+  return `${new URL("/connect", host)}#${base64Encode(JSON.stringify(value))}`
+}
+
+// Scanned codes are either the raw pairing JSON or a full /connect URL from `opencode pair` or desktop.
+export function decodePairingScan(value: string) {
+  const url = URL.parse(value.trim())
+  if (!url || (url.protocol !== "http:" && url.protocol !== "https:")) return decodePairingCode(value)
+  return decodePairingUrl(url.search, url.origin) ?? decodePairingUrl(url.hash, url.origin)
+}
+
+export function decodePairingUrl(value: string, origin?: string) {
+  if (value.startsWith("?")) {
+    const data = new URLSearchParams(value).get("data")
+    return data === null ? undefined : decodePairingCode(data, origin)
+  }
+  const encoded = value.startsWith("#") ? value.slice(1) : value
+  if (!encoded) return
+  const legacy = new URLSearchParams(`value=${encoded}`).get("value") ?? ""
+  if (legacy.startsWith("{")) return decodePairingCode(legacy)
+  if (!/^[A-Za-z0-9_-]+$/.test(encoded) || encoded.length % 4 === 1) return
+  const binary = atob(
+    encoded
+      .replaceAll("-", "+")
+      .replaceAll("_", "/")
+      .padEnd(Math.ceil(encoded.length / 4) * 4, "="),
+  )
+  return decodePairingCode(new TextDecoder().decode(Uint8Array.from(binary, (char) => char.charCodeAt(0))), origin)
+}
@@ -3,11 +3,11 @@ import { onCleanup, onMount, Show } from "solid-js"
 import { createStore } from "solid-js/store"
 import { Button } from "@opencode/ui/button"
 import { useLanguage } from "@/runtime/i18n/language"
-import { decodePairingCode } from "./pairing"
+import { decodePairingScan } from "./pairing"
 import "./scanner.css"

 export function PairingScanner(props: {
-  onScan: (value: NonNullable<ReturnType<typeof decodePairingCode>>) => void
+  onScan: (value: NonNullable<ReturnType<typeof decodePairingScan>>) => void
  onCancel: () => void
 }) {
  const language = useLanguage()
@@ -22,7 +22,7 @@ export function PairingScanner(props: {
    const scanner = new QrScanner(
      video,
      (result) => {
-        const pairing = decodePairingCode(result.data)
+        const pairing = decodePairingScan(result.data)
        if (!pairing) {
          setState("error", language.t("server.connect.scan.invalid"))
          return
@@ -9,19 +9,28 @@ import { usePlatform } from "@/runtime/platform/platform"
 import { useCheckServerHealth } from "@/runtime/server/health"
 import { useServers } from "@/runtime/server/registry"
 import { serverAddress } from "./pairing"
+import type { decodePairingCode } from "./pairing"
 import { isMixedContent } from "./browser"
 import { createCameraAvailability } from "./camera"
 import "./screen.css"

 const PairingScanner = lazy(() => import("./scanner").then((module) => ({ default: module.PairingScanner })))

-export function ConnectServerScreen() {
+export function ConnectServerScreen(
+  props: { pairing?: NonNullable<ReturnType<typeof decodePairingCode>>; onConnect?: () => void } = {},
+) {
  const language = useLanguage()
  const platform = usePlatform()
  const servers = useServers()
  const check = useCheckServerHealth()
  const camera = createCameraAvailability()
-  const [state, setState] = createStore({ url: "", password: "", urls: [] as string[], error: "", scanning: false })
+  const [state, setState] = createStore({
+    url: props.pairing?.urls[0] ?? "",
+    password: props.pairing?.password ?? "",
+    urls: props.pairing?.urls ?? ([] as string[]),
+    error: "",
+    scanning: false,
+  })
  const connectionError = () =>
    language.t(
      platform.platform === "web" && isMixedContent(location.href, state.url)
@@ -42,6 +51,7 @@ export function ConnectServerScreen() {
        return
      }
      servers.add({ type: "http", http })
+      props.onConnect?.()
    },
    onError: () => setState("error", connectionError()),
  }))
@@ -1,14 +1,15 @@
-import { createEffect, createMemo, getOwner, on, onCleanup, runWithOwner } from "solid-js"
+import { batch, createEffect, createMemo, createRoot, getOwner, on, onCleanup, runWithOwner } from "solid-js"
 import { createStore, reconcile } from "solid-js/store"
 import { createSimpleContext } from "@opencode/ui/context"
-import type { Browser } from "@opencode/plugin-browser/rpc"
 import { useLanguage } from "@/runtime/i18n/language"
 import type { BrowserPaneCommand } from "@/runtime/platform/browser-pane"
 import { usePlatform } from "@/runtime/platform/platform"
 import type { useServer } from "@/runtime/server/current"
+import type { SessionStateKey } from "@/runtime/server/scope"
 import { useSettings } from "@/settings/model"
 import { findSessionTab, tabKey, useTabs } from "@/shell/tabs/tabs"
-import { useCurrentRoute } from "@/shell/state/layout"
+import { useCurrentRoute, useLayout } from "@/shell/state/layout"
+import { sessionBrowserTab } from "@/shell/state/session-tabs"
 import { createEventListener } from "@solid-primitives/event-listener"
 import { createBrowserConnection, type BrowserConnectionState } from "./connection"

@@ -35,13 +36,14 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
    const settings = useSettings()
    const language = useLanguage()
    const shellTabs = useTabs()
+    const layout = useLayout()
    const route = useCurrentRoute()
    const owner = getOwner()
    const [store, setStore] = createStore<Record<string, BrowserAttachment | undefined>>({})
    // Servers whose plugin lacks the browser RPC; sessions on them stop retrying.
    const [unsupported, setUnsupported] = createStore<Record<string, true | undefined>>({})
    const live = new Map<string, Live>()
-    const focus = new Map<string, Set<(tabID: Browser.TabID) => void>>()
+    const preview = new Map<string, Set<(path: string) => void>>()
    const key = (server: Server, sessionID: string) => `${server.key}\n${sessionID}`
    const enabled = createMemo(
      () => !!platform.browserPane && settings.ready() && settings.general.experimentalBrowser(),
@@ -87,11 +89,14 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
      enabled,
      supported: (server: Server) => !unsupported[server.key],
      state: (server: Server, sessionID: string) => store[key(server, sessionID)],
-      attach(server: Server, sessionID: string) {
+      attach(server: Server, sessionID: string, sessionKey: SessionStateKey) {
        const id = key(server, sessionID)
        if (live.has(id)) return
        const pane = platform.browserPane
        if (!pane || !enabled() || unsupported[server.key] || server.health?.incompatible) return
+        // Focus requests write to the owning session's layout even while another shell tab is routed,
+        // so the Review pane and browser tab are already selected when the user returns to it.
+        const tabs = createRoot((dispose) => ({ dispose, layout: layout.tabs(sessionKey) }), owner)
        const connection = createBrowserConnection({
          pane,
          // Resolve the current port at every wake, including after sidecar replacement.
@@ -100,7 +105,15 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
            sessionID,
            endpoint: { ...server.conn.http, url: server.ctx.sdk.url },
          }),
-          focus: (tabID) => focus.get(id)?.forEach((listener) => listener(tabID)),
+          focus: (tabID) => {
+            const tab = sessionBrowserTab(tabID)
+            batch(() => {
+              shellTabs.setPane(findSessionTab(shellTabs.store, server.key, sessionID), "review", true)
+              if (!tabs.layout.all().includes(tab)) tabs.layout.setAll([...tabs.layout.all(), tab])
+              tabs.layout.setActive(tab)
+            })
+          },
+          preview: (path) => preview.get(id)?.forEach((listener) => listener(path)),
          change: (state) => {
            if (state.error === "browser.pane.unsupported") {
              setUnsupported(server.key, true)
@@ -138,17 +151,18 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
        entry.dispose = () => {
          unsubscribe?.forEach((dispose) => dispose())
          connection.dispose()
+          tabs.dispose()
        }
      },
-      /** Desktop focus requests for a mounted session route; nothing is replayed to routes mounted later. */
-      onFocus(server: Server, sessionID: string, listener: (tabID: Browser.TabID) => void) {
+      /** Agent requests to show a file in this session's Review pane. */
+      onPreview(server: Server, sessionID: string, listener: (path: string) => void) {
        const id = key(server, sessionID)
-        const listeners = focus.get(id) ?? new Set()
+        const listeners = preview.get(id) ?? new Set()
        listeners.add(listener)
-        focus.set(id, listeners)
+        preview.set(id, listeners)
        return () => {
          listeners.delete(listener)
-          if (!listeners.size) focus.delete(id)
+          if (!listeners.size) preview.delete(id)
        }
      },
      command(server: Server, sessionID: string, command: BrowserPaneCommand) {
@@ -28,10 +28,12 @@ function fixture() {
    commands: Browser.Action[]
  }[] = []
  const endpoint = { url: "http://localhost:4096" }
+  const previews: string[] = []
  const connection = createBrowserConnection({
    target: () => ({ serverKey: "browser-test", sessionID: "ses_browser", endpoint: { ...endpoint } }),
    change: (state) => states.push(state),
    focus: () => {},
+    preview: (path) => previews.push(path),
    pane: {
      register(target, emit) {
        const call = { target, emit, closed: false, commands: [] as Browser.Action[] }
@@ -50,9 +52,21 @@ function fixture() {
  })
  connection.wake()
  calls[0].emit({ type: "state", state: browser })
-  return { connection, calls, states, endpoint }
+  return { connection, calls, states, endpoint, previews }
 }

+test("preview requests reach the session without touching connection state", () => {
+  const app = fixture()
+  try {
+    const before = app.states.length
+    app.calls[0].emit({ type: "preview", path: "docs/report.pdf" })
+    expect(app.previews).toEqual(["docs/report.pdf"])
+    expect(app.states).toHaveLength(before)
+  } finally {
+    app.connection.dispose()
+  }
+})
+
 test("suspension retains tabs and reconnects once on demand using the current endpoint", async () => {
  const app = fixture()
  try {
@@ -19,6 +19,7 @@ export function createBrowserConnection(input: {
  target: () => BrowserPaneTarget
  change: (state: BrowserConnectionState) => void
  focus: (tabID: Browser.TabID) => void
+  preview: (path: string) => void
 }) {
  const state: BrowserConnectionState = { browser: null, suspended: false }
  let disposed = false
@@ -33,6 +34,7 @@ export function createBrowserConnection(input: {
      (event) => {
        if (disposed || state.registration !== registration) return
        if (event.type === "focus") return input.focus(event.tabID)
+        if (event.type === "preview") return input.preview(event.path)
        if (event.error === "browser.pane.unsupported" || event.error === "browser.pane.replaced") {
          blocked = true
          registration.close()
@@ -1,4 +1,4 @@
-import { batch, createEffect, createMemo, on, onCleanup } from "solid-js"
+import { batch, createEffect, createMemo, on } from "solid-js"
 import type { Browser } from "@opencode/plugin-browser/rpc"
 import { createStore } from "solid-js/store"
 import { useLanguage } from "@/runtime/i18n/language"
@@ -33,13 +33,6 @@ export function createSessionBrowser(session: SessionModel) {
      attachment()?.browser?.tabs.filter((tab) => session.layout.tabs().all().includes(sessionBrowserTab(tab.id))) ??
      [],
  )
-  const focus = (tabID: Browser.TabID) => {
-    session.layout.view().reviewPanel.open()
-    const tabs = session.layout.tabs()
-    const key = sessionBrowserTab(tabID)
-    if (!tabs.all().includes(key)) tabs.setAll([...tabs.all(), key])
-    tabs.setActive(key)
-  }
  const command = (command: BrowserPaneCommand) => {
    const sessionID = session.identity.sessionID()
    if (!sessionID) return
@@ -66,8 +59,7 @@ export function createSessionBrowser(session: SessionModel) {
  createEffect(() => {
    const sessionID = session.identity.sessionID()
    if (!sessionID) return
-    if (attachments.enabled()) attachments.attach(server, sessionID)
-    onCleanup(attachments.onFocus(server, sessionID, focus))
+    if (attachments.enabled()) attachments.attach(server, sessionID, session.layout.sessionKey())
  })
  createEffect(
    on(
@@ -20,13 +20,18 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
  const command = useCommand()
  const state = props.browser.active
  const address = () => (state()?.url === "about:blank" ? "" : (state()?.url ?? ""))
+  const failed = () => !!state()?.loadError
  const registration = props.browser.registration
  const button = { variant: "ghost", size: "large" } as const
  const [store, setStore] = createStore({
    address: "",
    editing: false,
+    submitted: false,
+    // A submitted navigation the browser has not reported yet; keeps the empty state hidden meanwhile.
+    navigating: false,
    visible: typeof document === "undefined" || document.visibilityState === "visible",
  })
+  const empty = () => !address() && !state()?.loading && !store.navigating
  let surface: HTMLDivElement | undefined
  let addressDisplay: HTMLDivElement | undefined
  let frame: number | undefined
@@ -43,7 +48,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
      title: language.t("command.browser.reload"),
      category: language.t("command.category.view"),
      keybind: "f5",
-      disabled: !props.visible || !state(),
+      disabled: !props.visible || !address(),
      onSelect: () => {
        const tab = state()
        if (tab) props.browser.command({ type: "reload", tabID: tab.id })
@@ -71,7 +76,9 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
    const top = Math.round(rect.top * zoom)
    const right = Math.round(rect.right * zoom)
    const bottom = Math.round(rect.bottom * zoom)
-    const visible = props.visible && store.visible && !dialog.active && !covered(rect)
+    // The desktop page hides blank and loading documents itself; only hide here
+    // while the pane shows its own empty or failed state over the surface.
+    const visible = props.visible && store.visible && !empty() && !failed() && !dialog.active && !covered(rect)
    // The cutout exposes the app backdrop outside the rounded Review card,
    // not the browser surface inside it.
    const color = getComputedStyle(
@@ -107,7 +114,25 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
    if (frame === undefined) frame = requestAnimationFrame(tick)
  }

-  createEffect(() => !store.editing && setStore("address", address()))
+  createEffect(on([() => state()?.id, address], () => !store.editing && setStore("address", address())))
+  // Any reported movement, including a rejected or blocked request, ends the submitted navigation.
+  createEffect(
+    on(
+      [() => state()?.id, () => state()?.generation, () => state()?.loading, () => props.browser.error()],
+      () => setStore("navigating", false),
+      { defer: true },
+    ),
+  )
+  // A blocked or rejected submission leaves the page where it was; show that page's URL again.
+  createEffect(
+    on(
+      () => props.browser.error(),
+      (error) => {
+        if (error && !store.editing) setStore("address", address())
+      },
+      { defer: true },
+    ),
+  )
  createEffect(
    on(registration, (current) => {
      // Session routes can change before this pane unmounts. Hide the registration
@@ -123,6 +148,8 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
        () => store.visible,
        () => props.visible,
        () => state()?.id,
+        empty,
+        failed,
        registration,
      ],
      () => {
@@ -157,7 +184,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes

  return (
    <aside id="browser-panel" class="relative size-full min-w-0 overflow-hidden bg-v2-background-bg-base flex flex-col">
-      <div class="h-10 shrink-0 flex items-center gap-1 px-2 border-b border-v2-border-border-muted">
+      <div class="h-10 shrink-0 flex items-center gap-1 px-3 border-b border-v2-border-border-muted">
        <For each={["back", "forward"] as const}>
          {(direction) => (
            <Tooltip placement="top" value={language.t(direction === "back" ? "common.goBack" : "common.goForward")}>
@@ -193,7 +220,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
        >
          <IconButton
            {...button}
-            disabled={!state()}
+            disabled={!state()?.loading && !address()}
            aria-label={language.t(state()?.loading ? "prompt.action.stop" : "error.page.action.reload")}
            onClick={() => {
              const tab = state()
@@ -212,8 +239,13 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
          onSubmit={(event) => {
            event.preventDefault()
            const tab = state()
-            if (tab && store.address.trim())
-              props.browser.command({ type: "navigate", tabID: tab.id, url: store.address })
+            const url = store.address.trim()
+            if (!tab) return
+            if (url || failed()) {
+              setStore({ submitted: true, address: url, navigating: true })
+              props.browser.command({ type: "navigate", tabID: tab.id, url: url || "about:blank" })
+            }
+            event.currentTarget.querySelector("input")?.blur()
          }}
        >
          <input
@@ -224,8 +256,14 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
            disabled={!state()}
            placeholder={language.t("session.browser.address.placeholder")}
            aria-label={language.t("session.browser.address")}
-            onFocus={() => setStore("editing", true)}
-            onBlur={() => setStore({ editing: false, address: address() })}
+            onFocus={(event) => {
+              setStore("editing", true)
+              event.currentTarget.select()
+            }}
+            onClick={(event) => event.currentTarget.select()}
+            onBlur={() =>
+              setStore({ editing: false, address: store.submitted ? store.address : address(), submitted: false })
+            }
            onInput={(event) => setStore("address", event.currentTarget.value)}
            onScroll={(event) => {
              if (addressDisplay) addressDisplay.scrollLeft = event.currentTarget.scrollLeft
@@ -243,12 +281,27 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
          </div>
        </form>
      </div>
-      <Show when={props.browser.error()}>
+      <Show when={props.browser.error() && !failed()}>
        <div class="shrink-0 px-3 py-1.5 text-12-regular text-text-danger-base border-b border-v2-border-border-muted">
          {props.browser.error()}
        </div>
      </Show>
      <div ref={surface} class="min-h-0 flex-1 bg-v2-background-bg-base flex items-center justify-center">
+        <Show when={(empty() || failed()) && !props.browser.suspended()}>
+          {/* Add the 40px toolbar to the file empty state's 160px bottom padding to align their centers. */}
+          <div
+            dir="auto"
+            class="flex size-full flex-col items-center justify-center gap-2 p-6 pb-[200px] text-center text-text-weak"
+          >
+            <Icon name="globe" size="large" class="mb-2 shrink-0" />
+            <div class="text-[13px] font-medium leading-[var(--line-height-compact)] text-text-strong">
+              {language.t(failed() ? "session.browser.failed.title" : "session.browser.empty.title")}
+            </div>
+            <div class="text-13-regular leading-[var(--line-height-base)]">
+              {language.t(failed() ? "session.browser.failed.description" : "session.browser.empty.description")}
+            </div>
+          </div>
+        </Show>
        <Show when={props.browser.suspended()}>
          <p class="px-6 text-center text-13-regular text-v2-text-text-subtle" role="status">
            {language.t("session.browser.suspended")}
@@ -0,0 +1,114 @@
+import { createEffect, onCleanup } from "solid-js"
+import { createStore } from "solid-js/store"
+import { useLanguage } from "@/runtime/i18n/language"
+import { useServerSDK } from "@/runtime/server/client"
+import { useCommand } from "@/shell/commands/command"
+import { showToast } from "@/shell/notifications/toast"
+import { SESSION_BTW_TAB } from "@/session/helpers"
+import type { SessionModel } from "../model"
+
+const instructions = [
+  "The user is asking a quick side question about the conversation so far.",
+  "Answer directly and concisely in markdown from what you already know.",
+  "Do not call any tools and do not take any actions.",
+].join(" ")
+
+const empty = {
+  question: "",
+  answer: "",
+  error: false,
+  pending: false,
+}
+
+export function createSessionBtw(session: SessionModel) {
+  const command = useCommand()
+  const language = useLanguage()
+  const server = useServerSDK()
+  const [states, setStates] = createStore<Record<string, typeof empty>>({})
+  const requests = new Map<string, number>()
+  const controllers = new Map<string, AbortController>()
+  const state = () => states[session.identity.sessionKey()] ?? empty
+
+  createEffect(() => {
+    const key = session.identity.sessionKey()
+    onCleanup(() => {
+      const controller = controllers.get(key)
+      if (!controller) return
+      controller.abort()
+      controllers.delete(key)
+      if (states[key]?.pending) setStates(key, { pending: false, error: true })
+    })
+  })
+
+  const open = () => {
+    session.layout.view().reviewPanel.open()
+    const tabs = session.layout.tabs()
+    if (tabs.active() !== SESSION_BTW_TAB) tabs.open(SESSION_BTW_TAB)
+  }
+  const ask = (value?: string) => {
+    const question = value?.trim()
+    if (!question) {
+      showToast({ title: language.t("session.btw.questionRequired") })
+      return
+    }
+    open()
+    const sessionID = session.identity.sessionID()
+    if (!sessionID) return
+
+    const key = session.identity.sessionKey()
+    const request = (requests.get(key) ?? 0) + 1
+    requests.set(key, request)
+    controllers.get(key)?.abort()
+    const controller = new AbortController()
+    controllers.set(key, controller)
+    const owner = session.ownership.capture()
+    setStates(key, { question, answer: "", error: false, pending: true })
+    return server.api.session
+      .generate(
+        {
+          sessionID,
+          prompt: [instructions, question].join("\n\n"),
+        },
+        { signal: controller.signal },
+      )
+      .then((result) => {
+        owner.run(() => {
+          if (requests.get(key) !== request) return
+          setStates(key, { answer: result.text.trim(), pending: false })
+        })
+      })
+      .catch(() => {
+        owner.run(() => {
+          if (controller.signal.aborted || requests.get(key) !== request) return
+          setStates(key, { error: true, pending: false })
+        })
+      })
+      .finally(() => {
+        if (controllers.get(key) === controller) controllers.delete(key)
+      })
+  }
+
+  command.register("session.btw", () => [
+    {
+      id: "session.btw",
+      title: language.t("command.session.btw"),
+      description: language.t("command.session.btw.description"),
+      category: language.t("command.category.session"),
+      slash: "btw",
+      slashArguments: true,
+      hidden: true,
+      disabled: !session.isDesktop(),
+      onSelect: (_source, input) => ask(input),
+    },
+  ])
+
+  return {
+    answer: () => state().answer,
+    error: () => state().error,
+    pending: () => state().pending,
+    question: () => state().question,
+    retry: () => ask(state().question),
+  }
+}
+
+export type SessionBtwModel = ReturnType<typeof createSessionBtw>
@@ -0,0 +1,80 @@
+import { createEffect, createSignal, Match, Show, Switch } from "solid-js"
+import { Button } from "@opencode/ui/button"
+import { Icon } from "@opencode/ui/icon"
+import { IconButton } from "@opencode/ui/icon-button"
+import { ScrollView } from "@opencode/ui/scroll-view"
+import { TextShimmer } from "@opencode/ui/text-shimmer"
+import { Tooltip } from "@opencode/ui/tooltip"
+import { Markdown } from "@opencode/session-ui/markdown"
+import { useLanguage } from "@/runtime/i18n/language"
+import { usePlatform } from "@/runtime/platform/platform"
+import { showToast } from "@/shell/notifications/toast"
+import type { SessionBtwModel } from "./model"
+
+export function SessionBtwPanel(props: { btw: SessionBtwModel }) {
+  const language = useLanguage()
+  const platform = usePlatform()
+  const [copied, setCopied] = createSignal(false)
+
+  createEffect(() => {
+    props.btw.answer()
+    setCopied(false)
+  })
+
+  const copy = () => {
+    const answer = props.btw.answer()
+    if (!answer) return
+    void (platform.writeClipboardText?.(answer) ?? navigator.clipboard.writeText(answer)).then(
+      () => setCopied(true),
+      () => showToast({ title: language.t("common.requestFailed") }),
+    )
+  }
+
+  return (
+    <div class="flex h-full min-h-0 flex-col bg-v2-background-bg-base" data-slot="session-btw-panel">
+      <div class="flex shrink-0 items-start justify-between gap-3 border-b border-v2-border-border-base px-5 py-4">
+        <div class="min-w-0 text-13-regular text-text-weak">{props.btw.question()}</div>
+        <Show when={props.btw.answer()}>
+          <Tooltip value={copied() ? language.t("common.copied") : language.t("session.btw.copy")}>
+            <IconButton
+              size="small"
+              variant="ghost-muted"
+              icon={<Icon name={copied() ? "check" : "outline-copy"} />}
+              aria-label={copied() ? language.t("common.copied") : language.t("session.btw.copy")}
+              onClick={copy}
+            />
+          </Tooltip>
+        </Show>
+      </div>
+
+      <div class="relative min-h-0 flex-1">
+        <Switch>
+          <Match when={props.btw.pending()}>
+            <div
+              data-component="session-working"
+              role="status"
+              class="flex h-9 items-center px-5 pt-3 text-[13px] font-[530] leading-text-compact"
+            >
+              <TextShimmer text={language.t("session.timeline.working")} active />
+            </div>
+          </Match>
+          <Match when={props.btw.error()}>
+            <div class="flex h-full flex-col items-center justify-center gap-3 px-8 pb-24 text-center">
+              <div class="text-13-regular text-text-weak">{language.t("session.btw.error")}</div>
+              <Button size="small" variant="outline" onClick={props.btw.retry}>
+                {language.t("session.btw.retry")}
+              </Button>
+            </div>
+          </Match>
+          <Match when={props.btw.answer()}>
+            <ScrollView class="absolute inset-0">
+              <div class="px-5 py-4 pb-8">
+                <Markdown text={props.btw.answer()} class="text-14-regular" />
+              </div>
+            </ScrollView>
+          </Match>
+        </Switch>
+      </div>
+    </div>
+  )
+}
@@ -0,0 +1,94 @@
+/* The control defaults to a fixed 232px with equal segments; here it hugs its two labels. */
+[data-slot="artifact-toolbar"] [data-slot="segmented-control-v2"] {
+  width: auto;
+}
+
+[data-slot="artifact-toolbar"] [data-slot="segmented-control-v2-item"] {
+  flex: 0 0 auto;
+  padding: 0 14px;
+}
+
+/* Shrink-wrapped segments round the label box down a fraction; the ellipsis overflow then clips glyph edges. */
+[data-slot="artifact-toolbar"] [data-slot="segmented-control-v2-item-label"] {
+  overflow: visible;
+  max-width: none;
+}
+
+[data-slot="artifact-stage"] {
+  --artifact-check: color-mix(in oklch, var(--v2-text-text-base) 5%, transparent);
+  background-color: var(--v2-background-bg-deep);
+}
+
+[data-slot="artifact-stage"][data-checker] {
+  background-image:
+    linear-gradient(45deg, var(--artifact-check) 25%, transparent 25%),
+    linear-gradient(-45deg, var(--artifact-check) 25%, transparent 25%),
+    linear-gradient(45deg, transparent 75%, var(--artifact-check) 75%),
+    linear-gradient(-45deg, transparent 75%, var(--artifact-check) 75%);
+  background-size: 16px 16px;
+  background-position:
+    0 0,
+    0 8px,
+    8px -8px,
+    -8px 0;
+}
+
+[data-slot="artifact-media"] {
+  display: block;
+  border-radius: 4px;
+  box-shadow:
+    0 0 0 0.5px var(--v2-border-border-base),
+    0 12px 32px -12px color-mix(in oklch, var(--v2-text-text-base) 25%, transparent);
+}
+
+[data-slot="artifact-stage"][data-zoom="fit"] [data-slot="artifact-media"] {
+  max-width: 100%;
+  max-height: 100%;
+  object-fit: contain;
+}
+
+[data-slot="artifact-stage"][data-zoom="fit"][data-overflow] [data-slot="artifact-media"] {
+  cursor: zoom-in;
+}
+
+[data-slot="artifact-stage"][data-zoom="actual"] [data-slot="artifact-media"] {
+  cursor: zoom-out;
+}
+
+[data-slot="artifact-table"] {
+  border-collapse: separate;
+  border-spacing: 0;
+  font-variant-numeric: tabular-nums;
+}
+
+[data-slot="artifact-table"] th,
+[data-slot="artifact-table"] td {
+  padding: 5px 12px;
+  border-bottom: 1px solid var(--v2-border-border-muted);
+  border-inline-end: 1px solid var(--v2-border-border-muted);
+  white-space: pre;
+  max-width: 40ch;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  text-align: start;
+  line-height: var(--line-height-compact);
+}
+
+[data-slot="artifact-table"] th {
+  position: sticky;
+  top: 0;
+  z-index: 1;
+  background: var(--v2-background-bg-layer-01);
+  font-weight: var(--font-weight-medium);
+  color: var(--v2-text-text-muted);
+}
+
+[data-slot="artifact-table"] tbody tr:hover td {
+  background: color-mix(in oklch, var(--v2-text-text-base) 3%, transparent);
+}
+
+[data-slot="artifact-table"] td[data-index] {
+  color: var(--v2-text-text-faint);
+  text-align: end;
+  user-select: none;
+}
@@ -0,0 +1,454 @@
+import { createEffect, createMemo, For, Match, on, onCleanup, Show, Switch, type JSX } from "solid-js"
+import { createStore } from "solid-js/store"
+import { createResizeObserver } from "@solid-primitives/resize-observer"
+import { Button } from "@opencode/ui/button"
+import { FileIcon } from "@opencode/ui/file-icon"
+import { SegmentedControl, SegmentedControlItem } from "@opencode/ui/segmented-control"
+import { ScrollView } from "@opencode/ui/scroll-view"
+import { Markdown } from "@opencode/session-ui/markdown"
+import { MarkdownProvider, useMarkdown } from "@opencode/session-ui/context/markdown"
+import { getDirectory, getFilename } from "@opencode/util/path"
+import type { FileContent } from "@/runtime/server/types"
+import { useLanguage } from "@/runtime/i18n/language"
+import {
+  artifactKind,
+  blobUrlFromContent,
+  contentBytes,
+  parseDelimited,
+  resolveArtifactPath,
+  type ArtifactKind,
+} from "@/workspaces/files/artifact"
+import { useArtifactOpener } from "@/session/files/open-artifact"
+import "./artifact-view.css"
+
+type ArtifactMode = "preview" | "source"
+
+/** Facts a viewer learns from the decoded media, shown in the toolbar. */
+type ArtifactInfo = { width?: number; height?: number; duration?: number; rows?: number; columns?: number }
+
+type MediaProps = {
+  path: string
+  content: FileContent
+  onInfo: (info: ArtifactInfo) => void
+  /** The browser could not decode the bytes; the host falls back to the binary placeholder. */
+  onError: () => void
+}
+
+/** Kinds that render a preview from their text and can toggle back to highlighted source. */
+const previewableKinds = new Set<ArtifactKind>(["svg", "html", "markdown", "mermaid", "table"])
+
+/**
+ * Renders a loaded non-text file: media, documents, and data get a dedicated viewer with a toolbar;
+ * previewable text kinds can switch to `source`, which the host supplies (its code view).
+ */
+export function ArtifactView(props: { path: string; content: FileContent; cacheKey?: string; source: JSX.Element }) {
+  const language = useLanguage()
+  const [state, setState] = createStore({
+    mode: "preview" as ArtifactMode,
+    info: {} as ArtifactInfo,
+    // Media the browser could not decode falls back to the binary placeholder.
+    undecodable: false,
+  })
+  createEffect(
+    on(
+      () => props.content,
+      () => setState({ mode: "preview", info: {}, undecodable: false }),
+      { defer: true },
+    ),
+  )
+
+  const kind = createMemo<ArtifactKind | "binary">(() => {
+    if (props.content.type === "binary" && !props.content.mimeType) return "binary"
+    if (state.undecodable) return "binary"
+    return artifactKind(props.path)
+  })
+  const previewable = createMemo(() => {
+    const value = kind()
+    return value !== "binary" && previewableKinds.has(value)
+  })
+  const meta = createMemo(() => {
+    const info = state.info
+    return [
+      info.width && info.height ? `${info.width} × ${info.height}` : undefined,
+      info.duration ? formatDuration(info.duration) : undefined,
+      info.rows !== undefined ? language.plural("file.view.table.rows", Math.max(0, info.rows - 1)) : undefined,
+      info.columns !== undefined ? language.plural("file.view.table.columns", info.columns) : undefined,
+      formatBytes(language.intl(), contentBytes(props.content)),
+    ].filter((item): item is string => !!item)
+  })
+
+  const media = { onInfo: (info: ArtifactInfo) => setState("info", info), onError: () => setState("undecodable", true) }
+  const rendered = () => (
+    <ScrollView class="min-h-0 flex-1">
+      <Show
+        when={kind() === "markdown"}
+        fallback={<ArtifactMermaid text={props.content.content} cacheKey={props.cacheKey} />}
+      >
+        <ArtifactMarkdown path={props.path} text={props.content.content} cacheKey={props.cacheKey} />
+      </Show>
+    </ScrollView>
+  )
+
+  return (
+    <>
+      <ArtifactToolbar
+        mode={state.mode}
+        onModeChange={previewable() ? (mode) => setState("mode", mode) : undefined}
+        meta={meta()}
+        actions={
+          <Show when={kind() === "html"}>
+            <OpenInBrowserButton path={props.path} />
+          </Show>
+        }
+      />
+      <Show when={!previewable() || state.mode === "preview"} fallback={props.source}>
+        <Switch>
+          <Match when={kind() === "image" || kind() === "svg"}>
+            <ArtifactImage path={props.path} content={props.content} {...media} />
+          </Match>
+          <Match when={kind() === "video"}>
+            <ArtifactVideo path={props.path} content={props.content} {...media} />
+          </Match>
+          <Match when={kind() === "audio"}>
+            <ArtifactAudio path={props.path} content={props.content} {...media} />
+          </Match>
+          <Match when={kind() === "pdf" || kind() === "html"}>
+            <ArtifactFrame path={props.path} content={props.content} kind={kind() === "pdf" ? "pdf" : "html"} />
+          </Match>
+          <Match when={kind() === "font"}>
+            <ArtifactFont path={props.path} content={props.content} />
+          </Match>
+          <Match when={kind() === "table"}>
+            <ArtifactTable path={props.path} text={props.content.content} onInfo={media.onInfo} />
+          </Match>
+          <Match when={kind() === "markdown" || kind() === "mermaid"}>{rendered()}</Match>
+          <Match when={kind() === "binary"}>
+            <ArtifactBinary path={props.path} size={formatBytes(language.intl(), contentBytes(props.content))} />
+          </Match>
+        </Switch>
+      </Show>
+    </>
+  )
+}
+
+function formatBytes(locale: string, bytes: number) {
+  const units = ["byte", "kilobyte", "megabyte", "gigabyte"] as const
+  const index = Math.min(units.length - 1, bytes > 0 ? Math.floor(Math.log10(bytes) / 3) : 0)
+  const value = bytes / 1000 ** index
+  return new Intl.NumberFormat(locale, {
+    style: "unit",
+    unit: units[index],
+    // "short" bytes render as the singular "byte"; the long form pluralizes correctly.
+    unitDisplay: index === 0 ? "long" : "short",
+    maximumFractionDigits: value >= 100 || index === 0 ? 0 : 1,
+  }).format(value)
+}
+
+function formatDuration(seconds: number) {
+  const total = Math.round(seconds)
+  const minutes = Math.floor(total / 60)
+  return `${minutes}:${String(total % 60).padStart(2, "0")}`
+}
+
+function ArtifactToolbar(props: {
+  mode?: ArtifactMode
+  onModeChange?: (mode: ArtifactMode) => void
+  meta: string[]
+  actions?: JSX.Element
+}) {
+  const language = useLanguage()
+  return (
+    <div data-slot="artifact-toolbar" class="flex h-10 shrink-0 items-center gap-3 px-4">
+      <Show when={props.onModeChange}>
+        <SegmentedControl
+          value={props.mode ?? "preview"}
+          onChange={(value) => {
+            if (value === "preview" || value === "source") props.onModeChange?.(value)
+          }}
+        >
+          <SegmentedControlItem value="preview">{language.t("file.view.preview")}</SegmentedControlItem>
+          <SegmentedControlItem value="source">{language.t("file.view.source")}</SegmentedControlItem>
+        </SegmentedControl>
+      </Show>
+      <div class="ms-auto flex min-w-0 items-center gap-3">
+        <div class="flex min-w-0 items-center gap-2 text-12-regular text-text-weak">
+          <For each={props.meta}>
+            {(item, index) => (
+              <>
+                <Show when={index() > 0}>
+                  <span aria-hidden class="text-text-faint">
+                    ·
+                  </span>
+                </Show>
+                <span class="truncate tabular-nums">{item}</span>
+              </>
+            )}
+          </For>
+        </div>
+        {props.actions}
+      </div>
+    </div>
+  )
+}
+
+function OpenInBrowserButton(props: { path: string }) {
+  const language = useLanguage()
+  const artifacts = useArtifactOpener()
+  return (
+    <Show when={artifacts.canOpenInBrowser(props.path)}>
+      <Button size="small" variant="ghost" icon="globe" onClick={() => artifacts.openInBrowser(props.path)}>
+        {language.t("file.view.openInBrowser")}
+      </Button>
+    </Show>
+  )
+}
+
+function createBlobUrl(content: () => FileContent) {
+  return createMemo(() => {
+    const value = blobUrlFromContent(content())
+    onCleanup(() => URL.revokeObjectURL(value))
+    return value
+  })
+}
+
+/** Images and SVG previews: fit the pane, click to inspect at 1:1 when the image is larger. */
+function ArtifactImage(props: MediaProps) {
+  const url = createBlobUrl(() => props.content)
+  const [state, setState] = createStore({ zoom: "fit" as "fit" | "actual", overflow: false, width: 0, height: 0 })
+  let stage: HTMLDivElement | undefined
+  const measure = () => {
+    if (!stage) return
+    setState("overflow", state.width > stage.clientWidth - 48 || state.height > stage.clientHeight - 48)
+  }
+  createResizeObserver(
+    () => stage,
+    () => measure(),
+  )
+  createEffect(() => {
+    url()
+    setState({ zoom: "fit", overflow: false })
+  })
+  return (
+    <div
+      ref={stage}
+      data-slot="artifact-stage"
+      data-checker
+      data-zoom={state.zoom}
+      data-overflow={state.overflow || undefined}
+      class="relative min-h-0 flex-1 overflow-auto"
+    >
+      <div
+        classList={{
+          "absolute inset-0 flex items-center justify-center p-6": state.zoom === "fit",
+          "flex min-h-full min-w-full w-max items-center justify-center p-6": state.zoom === "actual",
+        }}
+      >
+        <img
+          data-slot="artifact-media"
+          src={url()}
+          alt={getFilename(props.path)}
+          draggable={false}
+          onError={() => props.onError()}
+          onLoad={(event) => {
+            const image = event.currentTarget
+            setState({ width: image.naturalWidth, height: image.naturalHeight })
+            props.onInfo({ width: image.naturalWidth, height: image.naturalHeight })
+            measure()
+          }}
+          onClick={() => {
+            if (!state.overflow && state.zoom === "fit") return
+            setState("zoom", state.zoom === "fit" ? "actual" : "fit")
+          }}
+        />
+      </div>
+    </div>
+  )
+}
+
+function ArtifactVideo(props: MediaProps) {
+  const url = createBlobUrl(() => props.content)
+  return (
+    <div data-slot="artifact-stage" data-zoom="fit" class="relative min-h-0 flex-1 overflow-hidden">
+      <div class="absolute inset-0 flex items-center justify-center p-6">
+        <video
+          data-slot="artifact-media"
+          class="w-full bg-black"
+          controls
+          preload="metadata"
+          playsinline
+          onError={() => props.onError()}
+          src={url()}
+          onLoadedMetadata={(event) => {
+            const video = event.currentTarget
+            props.onInfo({ width: video.videoWidth, height: video.videoHeight, duration: video.duration })
+          }}
+        />
+      </div>
+    </div>
+  )
+}
+
+function ArtifactAudio(props: MediaProps) {
+  const url = createBlobUrl(() => props.content)
+  return (
+    <div data-slot="artifact-stage" class="relative min-h-0 flex-1 overflow-auto">
+      <div class="absolute inset-0 flex items-center justify-center p-6">
+        <div class="flex w-full max-w-lg flex-col items-center gap-5 rounded-xl border border-v2-border-border-muted bg-v2-background-bg-base px-8 py-8 shadow-[var(--v2-elevation-raised)]">
+          <div class="flex size-14 items-center justify-center rounded-full bg-v2-background-bg-layer-02">
+            <FileIcon node={{ path: props.path, type: "file" }} class="size-7" />
+          </div>
+          <div class="max-w-full truncate text-14-medium text-text-strong">{getFilename(props.path)}</div>
+          <audio
+            class="w-full"
+            onError={() => props.onError()}
+            controls
+            preload="metadata"
+            src={url()}
+            onLoadedMetadata={(event) => props.onInfo({ duration: event.currentTarget.duration })}
+          />
+        </div>
+      </div>
+    </div>
+  )
+}
+
+function ArtifactFrame(props: { path: string; content: FileContent; kind: "pdf" | "html" }) {
+  const url = createBlobUrl(() => props.content)
+  // PDF Open Parameters: start with the thumbnail pane closed and the page fitted to the pane width.
+  const src = () => (props.kind === "pdf" ? `${url()}#navpanes=0&view=FitH` : url())
+  return (
+    <iframe
+      class="block h-full w-full flex-1 border-0 bg-white"
+      title={getFilename(props.path)}
+      src={src()}
+      // The PDF viewer is Chromium's own and does not run in a sandboxed frame. HTML runs as an
+      // opaque origin: no app storage, cookies, or credentialed requests reach it.
+      sandbox={props.kind === "html" ? "allow-scripts allow-popups allow-forms allow-modals" : undefined}
+      referrerPolicy="no-referrer"
+    />
+  )
+}
+
+function ArtifactMarkdown(props: { path: string; text: string; cacheKey?: string }) {
+  const parent = useMarkdown()
+  const artifacts = useArtifactOpener()
+  // getDirectory yields "/" for a root-level file, which would make relative links absolute.
+  const dir = createMemo(() => (props.path.includes("/") || props.path.includes("\\") ? getDirectory(props.path) : ""))
+  // Absolute references bypass the file's directory; relative ones resolve against it.
+  const resolve = (href: string) => (/^([a-z]:)?\//i.test(href) ? href : (resolveArtifactPath(dir(), href) ?? href))
+  return (
+    <MarkdownProvider
+      readImage={(src, signal) => parent?.readImage?.(resolve(src), signal) ?? Promise.resolve(undefined)}
+      openLocalFile={(href) => artifacts.open(href, dir())}
+    >
+      <div class="mx-auto w-full max-w-3xl px-8 py-6">
+        <Markdown text={props.text} cacheKey={props.cacheKey} class="select-text" />
+      </div>
+    </MarkdownProvider>
+  )
+}
+
+/** Mermaid sources render through the same fenced-block pipeline the timeline uses. */
+function ArtifactMermaid(props: { text: string; cacheKey?: string }) {
+  return (
+    <div class="mx-auto w-full max-w-4xl px-8 py-6">
+      <Markdown text={`\`\`\`mermaid\n${props.text}\n\`\`\``} cacheKey={props.cacheKey} class="select-text" />
+    </div>
+  )
+}
+
+function ArtifactTable(props: { path: string; text: string; onInfo: (info: ArtifactInfo) => void }) {
+  const language = useLanguage()
+  const parsed = createMemo(() => parseDelimited(props.text, props.path.toLowerCase().endsWith(".tsv") ? "\t" : ","))
+  createEffect(() => props.onInfo({ rows: parsed().total, columns: parsed().columns }))
+  // Pad the header to the widest row so no data column is dropped.
+  const header = () => Array.from({ length: parsed().columns }, (_, index) => parsed().rows[0]?.[index] ?? "")
+  const body = () => parsed().rows.slice(1)
+  return (
+    <div class="min-h-0 flex-1 overflow-auto">
+      <table data-slot="artifact-table" class="min-w-full text-13-regular text-text-base">
+        <thead>
+          <tr>
+            <th data-index />
+            <For each={header()}>{(cell) => <th>{cell}</th>}</For>
+          </tr>
+        </thead>
+        <tbody>
+          <For each={body()}>
+            {(row, index) => (
+              <tr>
+                <td data-index>{index() + 1}</td>
+                <For each={header()}>{(_, column) => <td>{row[column()] ?? ""}</td>}</For>
+              </tr>
+            )}
+          </For>
+        </tbody>
+      </table>
+      <Show when={parsed().total > parsed().rows.length}>
+        <div class="px-4 py-3 text-12-regular text-text-weak">
+          {language.t("file.view.table.truncated", { shown: parsed().rows.length - 1, total: parsed().total - 1 })}
+        </div>
+      </Show>
+    </div>
+  )
+}
+
+const specimenSizes = [12, 16, 24, 40, 64]
+
+function ArtifactFont(props: { path: string; content: FileContent }) {
+  const language = useLanguage()
+  const url = createBlobUrl(() => props.content)
+  const family = createMemo(() => `artifact-${Math.random().toString(36).slice(2)}`)
+  createEffect(() => {
+    const face = new FontFace(family(), `url(${url()})`)
+    document.fonts.add(face)
+    void face.load().catch(() => undefined)
+    onCleanup(() => document.fonts.delete(face))
+  })
+  return (
+    <div class="min-h-0 flex-1 overflow-auto">
+      <div class="mx-auto flex w-full max-w-3xl flex-col gap-6 px-8 py-8" style={{ "font-family": `"${family()}"` }}>
+        <div class="text-text-strong" style={{ "font-size": "56px", "line-height": "1.1" }}>
+          {getFilename(props.path).replace(/\.[^.]+$/, "")}
+        </div>
+        <div class="break-all text-text-base" style={{ "font-size": "22px", "line-height": "1.4" }}>
+          ABCDEFGHIJKLMNOPQRSTUVWXYZ
+          <br />
+          abcdefghijklmnopqrstuvwxyz
+          <br />
+          0123456789 !?&@#%(){}[]
+        </div>
+        <div class="flex flex-col gap-3 border-t border-v2-border-border-muted pt-6">
+          <For each={specimenSizes}>
+            {(size) => (
+              <div class="flex items-baseline gap-4">
+                <span
+                  class="w-8 shrink-0 text-12-regular text-text-faint tabular-nums"
+                  style={{ "font-family": "var(--font-family-mono)" }}
+                >
+                  {size}
+                </span>
+                <span class="text-text-base" style={{ "font-size": `${size}px`, "line-height": "1.25" }}>
+                  {language.t("file.view.fontSample")}
+                </span>
+              </div>
+            )}
+          </For>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+function ArtifactBinary(props: { path: string; size: string }) {
+  const language = useLanguage()
+  return (
+    <div data-slot="artifact-stage" class="relative min-h-0 flex-1">
+      <div class="absolute inset-0 flex flex-col items-center justify-center gap-3 p-6 text-center">
+        <FileIcon node={{ path: props.path, type: "file" }} class="size-8 text-text-weak" />
+        <div class="text-14-medium text-text-strong">{getFilename(props.path)}</div>
+        <div class="text-13-regular text-text-weak">{language.t("file.view.binary", { size: props.size })}</div>
+      </div>
+    </div>
+  )
+}
@@ -1,4 +1,4 @@
-import { createEffect, createMemo, createSignal, Match, on, onCleanup, Switch } from "solid-js"
+import { createEffect, createMemo, createSignal, Match, on, onCleanup, Show, Switch } from "solid-js"
 import { createStore } from "solid-js/store"
 import { Dynamic } from "solid-js/web"
 import { makeEventListener } from "@solid-primitives/event-listener"
@@ -11,8 +11,9 @@ import { LineCommentOverflowIcon } from "@opencode/ui/line-comment"
 import { Menu } from "@opencode/ui/menu"
 import { Tabs } from "@opencode/ui/tabs"
 import { ScrollView } from "@opencode/ui/scroll-view"
-import { showToast } from "@/shell/notifications/toast"
 import { selectionFromLines, useFile, type FileSelection, type SelectedLineRange } from "@/workspaces/files/model"
+import { artifactKind } from "@/workspaces/files/artifact"
+import { ArtifactView } from "@/session/files/artifact-view"
 import { useComments } from "@/composer/comments"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useComposerState } from "@/composer/persistence"
@@ -205,6 +206,11 @@ export function SessionFileView(props: SessionFileViewProps) {
  })
  const contents = createMemo(() => state()?.content?.content ?? "")
  const cacheKey = createMemo(() => sampledChecksum(contents()))
+  // Plain text keeps the code view; every other kind is rendered by ArtifactView.
+  const artifact = createMemo(() => {
+    const content = state()?.content
+    return content?.type === "binary" || artifactKind(path() ?? "") !== "text"
+  })
  const selectedLines = createMemo<SelectedLineRange | null>(() => {
    const p = path()
    if (!p) return null
@@ -433,39 +439,42 @@ export function SessionFileView(props: SessionFileViewProps) {
        }}
        search={search}
        class="select-text"
-        media={{
-          mode: "auto",
-          path: path(),
-          current: state()?.content,
-          onLoad: scrollSync.queueRestore,
-          onError: (args: { kind: "image" | "audio" | "svg" }) => {
-            if (args.kind !== "svg") return
-            showToast({
-              variant: "error",
-              title: language.t("toast.file.loadFailed.title"),
-            })
-          },
-        }}
+        // Media and previews have their own viewers below; the code view only ever shows text.
+        media={{ mode: "off" }}
      />
    </div>
  )

+  // The code view scrolls inside ScrollView so line state and scroll position persist per tab.
+  const codeView = (source: string) => (
+    <ScrollView class="min-h-0 flex-1" viewportRef={scrollSync.setViewport} onScroll={scrollSync.handleScroll}>
+      {renderFile(source)}
+    </ScrollView>
+  )
+
  const content = () => (
-    <div class="mt-3 relative h-full min-h-0">
-      <ScrollView class="h-full" viewportRef={scrollSync.setViewport} onScroll={scrollSync.handleScroll}>
-        <Switch>
-          <Match when={state()?.loaded}>{renderFile(contents())}</Match>
-          <Match when={state()?.loading}>
-            <div class="px-6 py-4 text-text-weak">{language.t("common.loading")}…</div>
-          </Match>
-          <Match when={state()?.notFound ? state()?.name : undefined}>
-            {(name) => (
-              <div class="px-6 py-4 text-text-weak">{language.t("file.error.notFound", { name: name() })}</div>
-            )}
-          </Match>
-          <Match when={state()?.error}>{(err) => <div class="px-6 py-4 text-text-weak">{err()}</div>}</Match>
-        </Switch>
-      </ScrollView>
+    <div class="mt-3 relative h-full min-h-0 flex flex-col">
+      <Switch>
+        <Match when={state()?.loaded ? state()?.content : undefined}>
+          {(value) => (
+            <Show when={artifact()} fallback={codeView(value().content)}>
+              <ArtifactView
+                path={path() ?? ""}
+                content={value()}
+                cacheKey={cacheKey()}
+                source={codeView(value().content)}
+              />
+            </Show>
+          )}
+        </Match>
+        <Match when={state()?.loading}>
+          <div class="px-6 py-4 text-text-weak">{language.t("common.loading")}…</div>
+        </Match>
+        <Match when={state()?.notFound ? state()?.name : undefined}>
+          {(name) => <div class="px-6 py-4 text-text-weak">{language.t("file.error.notFound", { name: name() })}</div>}
+        </Match>
+        <Match when={state()?.error}>{(err) => <div class="px-6 py-4 text-text-weak">{err()}</div>}</Match>
+      </Switch>
    </div>
  )

@@ -0,0 +1,105 @@
+import { createEffect, onCleanup, type ParentProps } from "solid-js"
+import { createSimpleContext } from "@opencode/ui/context"
+import { MarkdownProvider, useMarkdown } from "@opencode/session-ui/context/markdown"
+import { useBrowserAttachments } from "@/session/browser/attachments"
+import type { SessionModel } from "@/session/model"
+import { useFile } from "@/workspaces/files/model"
+import { artifactKind, resolveArtifactPath } from "@/workspaces/files/artifact"
+import { encodeFilePath } from "@/workspaces/files/path"
+import { useWorkspaceLocation } from "@/workspaces/location"
+import { useServer } from "@/runtime/server/current"
+import { ServerConnection } from "@/runtime/server/registry"
+import { useSessionLayout } from "@/session/session-layout"
+import { createOpenSessionFileTab } from "@/session/helpers"
+import type { createSessionBrowser } from "@/session/browser/model"
+
+/** Routes local links in timeline markdown to the artifact opener while keeping image loading. */
+export function ArtifactMarkdownProvider(props: ParentProps) {
+  const markdown = useMarkdown()
+  const artifacts = useArtifactOpener()
+  return (
+    <MarkdownProvider readImage={markdown?.readImage} openLocalFile={(path) => artifacts.open(path)}>
+      {props.children}
+    </MarkdownProvider>
+  )
+}
+
+/**
+ * Opens files the agent references as side-panel tabs, inside or outside the workspace, or as
+ * a browser tab for HTML when the desktop can load the file directly.
+ */
+export const { use: useArtifactOpener, provider: ArtifactOpenerProvider } = createSimpleContext({
+  name: "ArtifactOpener",
+  init: (props: { session: SessionModel; browser: ReturnType<typeof createSessionBrowser> }) => {
+    const file = useFile()
+    const server = useServer()
+    const location = useWorkspaceLocation()
+    const attachments = useBrowserAttachments()
+    const { tabs, view } = useSessionLayout()
+
+    const root = () => location().directory.replaceAll("\\", "/").replace(/\/+$/, "")
+
+    /**
+     * Turn a link into a path `useFile` can load: workspace-relative when it is under the root,
+     * otherwise absolute. Relative links resolve against `base`; ones that climb past the root
+     * become absolute too, so a `../../shared/report.pdf` still opens.
+     */
+    const resolve = (href: string, base?: string) => {
+      // Agents cite locations as path:line or path:line:col; the file is what opens.
+      const value = href.replaceAll("\\", "/").replace(/:\d+(?::\d+)?$/, "")
+      if (/^[a-z]:\//i.test(value) || value.startsWith("/")) return file.normalize(value)
+      const relative = resolveArtifactPath(base ?? "", value)
+      if (relative !== undefined) return file.normalize(relative)
+      // Climbing past the workspace root: resolve from the referencing folder's absolute location.
+      const dir = base ? `${root()}/${base.replace(/\/+$/, "")}` : root()
+      return file.normalize(resolveArtifactPath(dir, value) ?? value)
+    }
+
+    const showTab = createOpenSessionFileTab({
+      normalizeTab: (tab) => tab,
+      openTab: (tab) => tabs().open(tab),
+      pathFromTab: file.pathFromTab,
+      loadFile: () => undefined,
+      openReviewPanel: () => {
+        if (!view().reviewPanel.opened()) view().reviewPanel.open()
+      },
+      setActive: (tab) => tabs().setActive(tab),
+    })
+
+    // Inline paths are guessed from text, so confirm the file exists before a tab appears for it.
+    const openTab = (path: string) => {
+      void file.load(path).then(() => {
+        if (file.get(path)?.loaded) showTab(file.tab(path))
+      })
+    }
+
+    // The desktop's own sidecar shares this disk, and its browser pane accepts file:// URLs inside the
+    // session workspace only. Forwarded loopback servers do not qualify, matching the desktop policy.
+    const canOpenInBrowser = (path?: string) =>
+      ServerConnection.builtin(server.conn) &&
+      props.browser.available() &&
+      props.browser.attached() &&
+      (path === undefined || !file.absolute(path))
+
+    const openInBrowser = (path: string) => {
+      props.browser.command({ type: "tabs.open", url: `file://${encodeFilePath(`${root()}/${path}`)}` })
+    }
+
+    /** Open `href` as referenced from `base` (a workspace-relative directory, "" for the root). */
+    const open = (href: string, base?: string) => {
+      const path = resolve(href, base)
+      if (!path) return
+      if (artifactKind(path) === "html" && canOpenInBrowser(path)) return openInBrowser(path)
+      openTab(path)
+    }
+
+    // The agent's browser.preview tool arrives through the desktop browser pane attachment.
+    createEffect(() => {
+      const sessionID = props.session.identity.sessionID()
+      if (!sessionID) return
+      onCleanup(attachments.onPreview(server, sessionID, (path) => open(path)))
+    })
+
+    return { canOpenInBrowser, openInBrowser, open }
+  },
+})
@@ -1,6 +1,12 @@
-import { DateTime } from "luxon"
-
 export function createSessionContextFormatter(locale: string) {
+  // The fields luxon's DATETIME_MED preset passed to Intl; output is identical.
+  const dateTime = new Intl.DateTimeFormat(locale, {
+    year: "numeric",
+    month: "short",
+    day: "numeric",
+    hour: "numeric",
+    minute: "numeric",
+  })
  return {
    number(value: number | null | undefined) {
      if (value === undefined) return "—"
@@ -14,7 +20,7 @@ export function createSessionContextFormatter(locale: string) {
    },
    time(value: number | undefined) {
      if (!value) return "—"
-      return DateTime.fromMillis(value).setLocale(locale).toLocaleString(DateTime.DATETIME_MED)
+      return dateTime.format(value)
    },
  }
 }
@@ -173,7 +173,9 @@ export function SessionFileBrowserTab(props: {
          <SessionFilePanelV2Empty>
            <div class="flex flex-col items-center gap-2 text-center text-text-weak">
              <Icon name="file-tree" size="large" class="mb-2" />
-              <div class="text-[13px] font-medium leading-[13px] text-text-strong">{language.t("command.file.open")}</div>
+              <div class="text-[13px] font-medium leading-[13px] text-text-strong">
+                {language.t("command.file.open")}
+              </div>
              <div class="h-5 text-13-regular leading-5">{language.t("session.files.selectToOpen")}</div>
            </div>
          </SessionFilePanelV2Empty>
@@ -37,6 +37,7 @@ import { useSettings } from "@/settings/model"
 import { createFileTabListSync } from "@/session/files/file-tab-scroll"
 import {
  SESSION_OPEN_FILE_TAB,
+  SESSION_BTW_TAB,
  isSessionBrowserTab,
  sessionBrowserTab,
  createOpenSessionFileTab,
@@ -74,6 +75,7 @@ export function SessionSidePanel(props: {
  size: Sizing
  stacked?: boolean
  browser: ReturnType<typeof createSessionBrowser>
+  btwPanel: () => JSX.Element
 }) {
  const layout = useLayout()
  const settings = useSettings()
@@ -227,7 +229,7 @@ export function SessionSidePanel(props: {
  })
  const fileBrowserVisible = createMemo(() => {
    const active = activeTab()
-    return active !== "review" && active !== "context" && active !== "empty" && !isSessionBrowserTab(active)
+    return active === SESSION_OPEN_FILE_TAB || active === activeFileTab()
  })
  const openFileKeybind = createMemo(() => command.keybindParts("file.open"))
  const openBrowserKeybind = createMemo(() => command.keybindParts("browser.open"))
@@ -385,6 +387,14 @@ export function SessionSidePanel(props: {
                                  />
                                }
                              >
+                                <Match when={tab === SESSION_BTW_TAB}>
+                                  <SortableTab tab={tab} index={tabs().all().indexOf(tab)} onTabClose={tabs().close}>
+                                    <div class="flex items-center gap-1.5">
+                                      <Icon name="bubble-5" size="small" />
+                                      <span>{language.t("session.tab.btw")}</span>
+                                    </div>
+                                  </SortableTab>
+                                </Match>
                                <Match when={isSessionBrowserTab(tab)}>
                                  <Show when={props.browser.tabs().find((item) => sessionBrowserTab(item.id) === tab)}>
                                    {(item) => (
@@ -583,6 +593,12 @@ export function SessionSidePanel(props: {
                        </Tabs.Content>
                      </Show>

+                      <Show when={activeTab() === SESSION_BTW_TAB}>
+                        <Tabs.Content value={SESSION_BTW_TAB} class="flex h-full min-h-0 flex-col overflow-hidden">
+                          {props.btwPanel()}
+                        </Tabs.Content>
+                      </Show>
+
                      <Show when={props.browser.opened()}>
                        <div
                          id={browserTabPanelID}
@@ -1,6 +1,8 @@
 import { children, createMemo, Show } from "solid-js"
 import type { JSX } from "solid-js"
 import { useSortable } from "@dnd-kit/solid/sortable"
+import { Icon } from "@opencode/ui/icon"
+import { IconButton } from "@opencode/ui/icon-button"
 import { Keybind } from "@opencode/ui/keybind"
 import { Tooltip } from "@opencode/ui/tooltip"
 import { Tabs } from "@opencode/ui/tabs"
@@ -69,9 +71,19 @@ export function SortableTab(props: {
              placement="bottom"
              gutter={10}
            >
-              <Tabs.CloseButton
-                class="h-5 w-5"
-                onClick={() => props.onTabClose(props.tab)}
+              <IconButton
+                size="small"
+                variant="ghost-muted"
+                onPointerDown={(event) => {
+                  event.preventDefault()
+                  event.stopPropagation()
+                }}
+                onClick={(event) => {
+                  event.preventDefault()
+                  event.stopPropagation()
+                  props.onTabClose(props.tab)
+                }}
+                icon={<Icon name="xmark-small" />}
                aria-label={language.t("common.closeTab")}
              />
            </Tooltip>
@@ -2,6 +2,7 @@ import { describe, expect, test } from "bun:test"
 import { createMemo, createRoot } from "solid-js"
 import { createStore } from "solid-js/store"
 import {
+  SESSION_BTW_TAB,
  SESSION_BROWSER_TAB,
  sessionBrowserTab,
  SESSION_OPEN_FILE_TAB,
@@ -236,6 +237,24 @@ describe("createSessionTabs", () => {
    })
  })

+  test("exposes the BTW tab without treating it as a file tab", () => {
+    createRoot((dispose) => {
+      const tabs = createMemo(() => ({ active: () => SESSION_BTW_TAB, all: () => [SESSION_BTW_TAB] }))
+      const result = createSessionTabs({
+        tabs,
+        pathFromTab: () => undefined,
+        normalizeTab: (tab) => tab,
+      })
+
+      expect(result.panelTabs()).toEqual([SESSION_BTW_TAB])
+      expect(result.openedTabs()).toEqual([])
+      expect(result.activeTab()).toBe(SESSION_BTW_TAB)
+      expect(result.activeFileTab()).toBeUndefined()
+      expect(result.closableTab()).toBe(SESSION_BTW_TAB)
+      dispose()
+    })
+  })
+
  test("exposes one browser tab without treating it as a file tab", () => {
    createRoot((dispose) => {
      const tabs = createMemo(() => ({ active: () => SESSION_BROWSER_TAB, all: () => [SESSION_BROWSER_TAB] }))
@@ -2,10 +2,11 @@ import { batch, createMemo, onCleanup, onMount, type Accessor } from "solid-js"
 import { createStore } from "solid-js/store"
 import { makeEventListener } from "@solid-primitives/event-listener"
 import { same } from "@/runtime/persistence/equality"
-import { isSessionBrowserTab, SESSION_OPEN_FILE_TAB } from "@/shell/state/session-tabs"
+import { isSessionBrowserTab, SESSION_BTW_TAB, SESSION_OPEN_FILE_TAB } from "@/shell/state/session-tabs"

 export {
  SESSION_BROWSER_TAB,
+  SESSION_BTW_TAB,
  SESSION_OPEN_FILE_TAB,
  sessionBrowserTab,
  isSessionBrowserTab,
@@ -63,13 +64,17 @@ export const createSessionTabs = (input: TabsInput) => {
    { equals: same },
  )
  const openedTabs = createMemo(
-    () => panelTabs().filter((tab) => tab !== SESSION_OPEN_FILE_TAB && !isSessionBrowserTab(tab)),
+    () =>
+      panelTabs().filter(
+        (tab) => tab !== SESSION_OPEN_FILE_TAB && tab !== SESSION_BTW_TAB && !isSessionBrowserTab(tab),
+      ),
    emptyTabs,
    { equals: same },
  )
  const activeTab = createMemo(() => {
    const active = input.tabs().active()
    if (active === "context") return active
+    if (active === SESSION_BTW_TAB) return active
    if (active === SESSION_OPEN_FILE_TAB && openFileOpen()) return active
    if (active && isSessionBrowserTab(active) && browser()) return active
    if (active === "review" && review()) return active
@@ -89,6 +94,7 @@ export const createSessionTabs = (input: TabsInput) => {
  const closableTab = createMemo<string | undefined>(() => {
    const active = activeTab()
    if (active === "context") return active
+    if (active === SESSION_BTW_TAB) return active
    if (active === SESSION_OPEN_FILE_TAB && openFileOpen()) return active
    if (active && isSessionBrowserTab(active) && browser()) return active
    if (!openedTabs().includes(active)) return
@@ -137,6 +137,7 @@ export function useSessionModel() {
      tabs: layout.tabs,
      view: layout.view,
      tabKey: layout.tabKey,
+      sessionKey: layout.sessionKey,
    },
    ownership: createSessionOwnership(layout.sessionKey),
    tabs: {
@@ -155,6 +155,9 @@ export function createSessionReview(input: {
  const count = () => diffs().length
  const hasChanges = () => count() > 0
  const ready = () => {
+    // A project without VCS never enables vcsQuery, so its status stays "pending" forever.
+    const project = input.session.project()
+    if (project && !project.vcs) return true
    if (mode() === "git" || mode() === "branch") return !vcsQuery.isPending
    return true
  }
@@ -14,6 +14,8 @@ import { ReviewPanel } from "./panel"
 import { SessionReviewTab } from "./review-tab"
 import type { ChangeMode, SessionReviewModel } from "./model"
 import type { createSessionBrowser } from "../browser/model"
+import type { SessionBtwModel } from "../btw/model"
+import { SessionBtwPanel } from "../btw/panel"

 const MobilePanelDrawer = lazy(async () => {
  const { MobilePanelDrawer } = await import("@/shell/mobile-panel-drawer")
@@ -127,6 +129,7 @@ export function SessionMobileReview(props: { review: SessionReviewModel }) {
 export function SessionDesktopReview(props: {
  review: SessionReviewModel
  browser: ReturnType<typeof createSessionBrowser>
+  btw: SessionBtwModel
  present?: boolean
 }) {
  return (
@@ -153,6 +156,7 @@ export function SessionDesktopReview(props: {
        size={props.review.screen.size}
        stacked={props.review.screen.side.layout().stacked}
        browser={props.browser}
+        btwPanel={() => <SessionBtwPanel btw={props.btw} />}
      />
    </Suspense>
  )
@@ -249,7 +253,7 @@ function ReviewTitle(props: { review: SessionReviewModel }) {
 function ReviewEmpty(props: { review: SessionReviewModel; loadingClass: string }) {
  const language = useLanguage()
  const loading = () => (props.review.mode() === "git" || props.review.mode() === "branch") && !props.review.ready()
-  const noGit = () => props.review.mode() === "turn" && props.review.noGit()
+  const noGit = () => props.review.noGit()
  const text = () => {
    if (props.review.mode() === "git") return language.t("session.review.noUncommittedChanges")
    if (props.review.mode() === "branch") return language.t("session.review.noBranchChanges")
@@ -282,7 +286,7 @@ function ReviewEmpty(props: { review: SessionReviewModel; loadingClass: string }
 function ReviewPanelEmpty(props: { review: SessionReviewModel }) {
  const language = useLanguage()
  const loading = () => (props.review.mode() === "git" || props.review.mode() === "branch") && !props.review.ready()
-  const noGit = () => props.review.mode() === "turn" && props.review.noGit()
+  const noGit = () => props.review.noGit()
  return (
    <Switch>
      <Match when={loading()}>
@@ -38,6 +38,8 @@ import { SessionReviewToggle } from "./header/session-header-actions"
 import { createAnimatedPresence } from "@/runtime/animated-presence"
 import { createSessionBrowser } from "./browser/model"
 import { createTimelineCache } from "./timeline/cache"
+import { ArtifactMarkdownProvider, ArtifactOpenerProvider } from "./files/open-artifact"
+import { createSessionBtw } from "./btw/model"

 const SessionMobileFiles = lazy(async () => {
  const { SessionMobileFiles } = await import("./files/session-mobile-files")
@@ -50,14 +52,27 @@ const SessionSummaryPanel = lazy(async () => {
 })

 export function SessionScreen(props: { session: SessionModel }) {
+  // The timeline cache captures its owner when created, so link handling must be provided above it.
+  const browser = createSessionBrowser(props.session)
+  return (
+    <ArtifactOpenerProvider session={props.session} browser={browser}>
+      <ArtifactMarkdownProvider>
+        <SessionScreenContent session={props.session} browser={browser} />
+      </ArtifactMarkdownProvider>
+    </ArtifactOpenerProvider>
+  )
+}
+
+function SessionScreenContent(props: { session: SessionModel; browser: ReturnType<typeof createSessionBrowser> }) {
  const session = props.session
+  const browser = props.browser
  const server = useServer()
  const detailsProject = createMemo(() => {
    const info = session.data.info()
    return info ? projectForSession(info, server.ctx.sync.data.project) : undefined
  })
  const isDesktop = session.isDesktop
-  const browser = createSessionBrowser(session)
+  const btw = createSessionBtw(session)
  const screen = createSessionScreenLayout(session)
  const timeline = createSessionTimelineInteraction(session)
  const timelineSearch = createTimelineSearchController({
@@ -438,7 +453,12 @@ export function SessionScreen(props: { session: SessionModel }) {
                        setStore("sideReviewPresent", false)
                      }}
                    >
-                      <SessionDesktopReview review={review} browser={browser} present={store.sideReviewPresent} />
+                      <SessionDesktopReview
+                        review={review}
+                        browser={browser}
+                        btw={btw}
+                        present={store.sideReviewPresent}
+                      />
                    </div>
                  </Show>
                </div>
@@ -1,7 +1,8 @@
-import { For, Show, createEffect, createMemo, lazy, on, onCleanup } from "solid-js"
+import { For, Show, createEffect, createMemo, on, onCleanup } from "solid-js"
 import { createStore } from "solid-js/store"
 import { makeEventListener } from "@solid-primitives/event-listener"
 import { Button } from "@opencode/ui/button"
+import { Icon } from "@opencode/ui/icon"
 import { IconButton } from "@opencode/ui/icon-button"
 import { TextInput } from "@opencode/ui/text-input"
 import { showToast } from "@/shell/notifications/toast"
@@ -17,8 +18,6 @@ import { useLanguage } from "@/runtime/i18n/language"
 import { useSettings } from "@/settings/model"
 import { SettingsList } from "@/settings/list"

-const Icon = lazy(() => import("@opencode/ui/icon").then((module) => ({ default: module.Icon })))
-
 const IS_MAC = typeof navigator === "object" && /(Mac|iPod|iPhone|iPad)/.test(navigator.platform)
 const PALETTE_ID = "command.palette"

@@ -7,6 +7,7 @@ export const pageIcons = {
  appearance: "appearance",
  notifications: "notifications",
  shortcuts: "keyboard",
+  pairing: "server",
  projects: "folder",
  workspaces: "outline-worktree",
  providers: "providers",
@@ -22,6 +23,7 @@ export const pageLabels = {
  appearance: "settings.general.section.appearance",
  notifications: "settings.tab.notifications",
  shortcuts: "settings.shortcuts.title",
+  pairing: "settings.pairing.title",
  projects: "settings.tab.projects",
  workspaces: "settings.tab.workspaces",
  providers: "settings.providers.title",
@@ -0,0 +1,193 @@
+import { Button } from "@opencode/ui/button"
+import { useDialog } from "@opencode/ui/context/dialog"
+import { Dialog, DialogBody, DialogHeader, DialogTitleGroup } from "@opencode/ui/dialog"
+import { Icon } from "@opencode/ui/icon"
+import { Switch } from "@opencode/ui/switch"
+import { Tooltip } from "@opencode/ui/tooltip"
+import { useMutation, useQuery, useQueryClient } from "@tanstack/solid-query"
+import { createEffect, createMemo, onCleanup, Show } from "solid-js"
+import { renderSVG } from "uqr"
+import { useLanguage } from "@/runtime/i18n/language"
+import { usePlatform, type PairingInfo } from "@/runtime/platform/platform"
+import { pairingUrl } from "@/servers/connect/pairing"
+import { SettingsList } from "@/settings/list"
+import { SettingsRow } from "@/settings/row"
+
+export function SettingsPairing() {
+  const language = useLanguage()
+  const dialog = useDialog()
+  const platform = usePlatform()
+  const queryClient = useQueryClient()
+  const pair = platform.pair
+  if (!pair) return null
+  const local = useQuery(() => ({
+    queryKey: ["pairing", "local"],
+    queryFn: pair.info,
+  }))
+  // Reading pending query data would suspend the entire settings surface.
+  const localInfo = () => (local.isSuccess ? local.data : undefined)
+  const localHost = createMemo(() =>
+    localInfo()?.urls.find((value) => {
+      const host = new URL(value).hostname
+      return (
+        host !== "localhost" &&
+        !host.endsWith(".localhost") &&
+        !host.startsWith("127.") &&
+        host !== "[::1]" &&
+        host !== "0.0.0.0" &&
+        host !== "[::]"
+      )
+    }),
+  )
+  const screenActive = useQuery(() => ({
+    queryKey: ["pairing", "screen-active"],
+    queryFn: () => platform.getKeepScreenActive!(),
+    enabled: !!platform.getKeepScreenActive,
+  }))
+  const screenActivity = useMutation(() => ({
+    mutationFn: async (enabled: boolean) => platform.setKeepScreenActive?.(enabled),
+    onSuccess: (_, enabled) => queryClient.setQueryData(["pairing", "screen-active"], enabled),
+  }))
+
+  return (
+    <>
+      <div class="settings-tab-header">
+        <div class="settings-tab-header-row">
+          <div class="flex flex-col gap-1">
+            <h2 class="settings-tab-title">{language.t("settings.pairing.title")}</h2>
+            <span class="text-11-regular text-v2-text-text-muted">{language.t("pair.description")}</span>
+          </div>
+        </div>
+      </div>
+
+      <div class="settings-tab-body settings-tab-body--sectioned">
+        <section class="settings-section" aria-label={language.t("settings.pairing.connection")}>
+          <SettingsList>
+            <SettingsRow
+              title={language.t("settings.pairing.connection")}
+              description={language.t("pair.local.description")}
+            >
+              <Button
+                variant="neutral"
+                disabled={!localHost()}
+                onClick={() =>
+                  dialog.push(() => (
+                    <DialogPairing
+                      title={language.t("settings.pairing.connection")}
+                      info={localInfo()}
+                      host={localHost()!}
+                    />
+                  ))
+                }
+              >
+                {language.t("pair.local.open")}
+              </Button>
+            </SettingsRow>
+            <Show when={platform.getKeepScreenActive && platform.setKeepScreenActive}>
+              <div data-action="settings-keep-screen-active">
+                <SettingsRow
+                  title={language.t("pair.screenActive.title")}
+                  description={language.t("pair.screenActive.description")}
+                >
+                  <Switch
+                    hideLabel
+                    checked={screenActive.isSuccess && screenActive.data}
+                    disabled={screenActive.isPending || !!screenActive.error || screenActivity.isPending}
+                    onChange={(enabled) => screenActivity.mutate(enabled)}
+                  >
+                    {language.t("pair.screenActive.title")}
+                  </Switch>
+                </SettingsRow>
+              </div>
+            </Show>
+          </SettingsList>
+          <Show when={screenActive.error || screenActivity.error}>
+            <p class="text-text-danger-base" role="alert">
+              {language.t("pair.screenActive.error")}
+            </p>
+          </Show>
+          <Show when={local.error}>
+            <p class="text-text-danger-base" role="alert">
+              {language.t("pair.error")}
+            </p>
+          </Show>
+        </section>
+      </div>
+    </>
+  )
+}
+
+function DialogPairing(props: { title: string; info: PairingInfo | null | undefined; host: string }) {
+  const language = useLanguage()
+  const platform = usePlatform()
+  const url = createMemo(() => {
+    if (!props.info) return
+    return pairingUrl({ username: props.info.username, password: props.info.password }, props.host)
+  })
+  const origin = createMemo(() => {
+    const value = url()
+    if (!value) return
+    return new URL(value).origin
+  })
+  const copy = useMutation(() => ({
+    mutationFn: async () => {
+      const value = url()
+      if (!value) return
+      await (platform.writeClipboardText?.(value) ?? navigator.clipboard.writeText(value))
+    },
+  }))
+  createEffect(() => {
+    if (!copy.isSuccess) return
+    const timeout = setTimeout(() => copy.reset(), 2000)
+    onCleanup(() => clearTimeout(timeout))
+  })
+  const qr = createMemo(() => {
+    const value = url()
+    if (!value) return
+    return renderSVG(value, { border: 4, blackColor: "currentColor", whiteColor: "transparent" })
+  })
+
+  return (
+    <Dialog fit containerClass="max-w-[min(400px,calc(100vw-32px),calc(100dvh-180px))]">
+      <DialogHeader>
+        <DialogTitleGroup title={props.title} description={language.t("pair.description")} />
+      </DialogHeader>
+      <DialogBody class="flex flex-col gap-4 px-4 pb-4">
+        <Show when={props.info}>
+          <div
+            class="aspect-square w-full shrink-0 rounded-[6px] bg-v2-background-bg-base p-6 text-v2-text-text-base [&>svg]:size-full"
+            role="img"
+            aria-label={language.t("pair.qr")}
+            innerHTML={qr()}
+          />
+          <div class="flex min-w-0 justify-center pb-2">
+            <Tooltip
+              class="min-w-0 max-w-full"
+              value={language.t(copy.isSuccess ? "common.copied" : "pair.copy")}
+              placement="top"
+              forceOpen={copy.isSuccess ? true : undefined}
+            >
+              <button
+                type="button"
+                class="inline-flex min-h-8 max-w-full select-none items-center justify-center gap-2 rounded-[6px] px-2 py-1 text-[13px] font-[440] leading-text-compact tracking-[-0.04px] text-v2-text-text-muted transition-colors hover:bg-v2-background-bg-layer-02 hover:text-v2-text-text-base focus-visible:bg-v2-background-bg-layer-02 focus-visible:outline-none disabled:opacity-50"
+                disabled={copy.isPending}
+                aria-label={language.t("pair.copy")}
+                onClick={() => copy.mutate()}
+              >
+                <Icon name={copy.isSuccess ? "check" : "copy"} size="small" class="shrink-0" />
+                <bdi dir="ltr" class="min-w-0 break-all text-start">
+                  {origin()}
+                </bdi>
+              </button>
+            </Tooltip>
+          </div>
+        </Show>
+        <Show when={copy.error}>
+          <p class="text-text-danger-base" role="alert">
+            {language.t("pair.copy.error")}
+          </p>
+        </Show>
+      </DialogBody>
+    </Dialog>
+  )
+}
@@ -12,7 +12,7 @@ import { DialogConnectProvider, useProviderConnectController } from "@/providers
 import { SettingsList } from "@/settings/list"
 import "@/settings/settings.css"

-type ProviderSource = "env" | "api" | "config" | "custom"
+type ProviderSource = "env" | "api" | "account" | "config" | "custom"
 type ProviderItem = ReturnType<ReturnType<typeof useProviders>["connected"]>[number]

 const PROVIDER_NOTES = [
@@ -38,7 +38,12 @@ export const SettingsProviders: Component<{
  const providers = useProviders(() => props.directory)
  const integrations = useIntegrations(() => props.directory)
  const providerConnect = useProviderConnectController({ onBack: props.onBack })
-  const integration = (providerID: string) => integrations.list().find((item) => item.id === providerID)
+  // Console-managed providers (`opencode-go`, `console-*`) connect through the `opencode`
+  // integration, so the lookup must follow `integrationID` rather than the provider id.
+  const integration = (item: ProviderItem) => {
+    const id = item.integrationID ?? item.id
+    return integrations.list().find((entry) => entry.id === id)
+  }

  const connect = (provider?: string) => {
    providerConnect.select(provider)
@@ -69,8 +74,9 @@ export const SettingsProviders: Component<{
  // connections mean an API key or OAuth grant, env connections mean detected
  // environment variables, and a connectionless integration is config-provided.
  const source = (item: ProviderItem): ProviderSource | undefined => {
-    const current = integration(item.id)
-    if (current?.connections.some((connection) => connection.type === "credential")) return "api"
+    const current = integration(item)
+    const credential = current?.connections.find((connection) => connection.type === "credential")
+    if (credential) return credential.method === "oauth" ? "account" : "api"
    if (current?.connections.some((connection) => connection.type === "env")) return "env"
    if (current) return "config"
    if (!("source" in item)) return
@@ -83,13 +89,14 @@ export const SettingsProviders: Component<{
    const current = source(item)
    if (current === "env") return language.t("settings.providers.tag.environment")
    if (current === "api") return language.t("provider.connect.method.apiKey")
+    if (current === "account") return language.t("settings.providers.tag.account")
    if (current === "config") return language.t("settings.providers.tag.config")
    if (current === "custom") return language.t("settings.providers.tag.custom")
    return language.t("settings.providers.tag.other")
  }

  const canDisconnect = (item: ProviderItem) => {
-    const current = integration(item.id)
+    const current = integration(item)
    if (current) return current.connections.some((connection) => connection.type === "credential")
    const currentSource = source(item)
    return currentSource !== "env" && currentSource !== "config"
@@ -97,10 +104,11 @@ export const SettingsProviders: Component<{

  const note = (id: string) => PROVIDER_NOTES.find((item) => item.match(id))?.key

-  const disconnect = async (providerID: string, name: string) => {
+  const disconnect = async (item: ProviderItem) => {
+    const name = item.name
    const location = props.directory ? { directory: props.directory } : undefined
    await serverSdk.api.integration
-      .get({ integrationID: providerID, location })
+      .get({ integrationID: item.integrationID ?? item.id, location })
      .then(async (integration) => {
        const credentials = integration.data?.connections.filter((item) => item.type === "credential") ?? []
        if (credentials.length === 0) throw new Error(`No removable credentials found for ${name}`)
@@ -162,7 +170,7 @@ export const SettingsProviders: Component<{
                        </span>
                      }
                    >
-                      <Button size="normal" variant="ghost-muted" onClick={() => void disconnect(item.id, item.name)}>
+                      <Button size="normal" variant="ghost-muted" onClick={() => void disconnect(item)}>
                        {language.t("common.disconnect")}
                      </Button>
                    </Show>
@@ -20,6 +20,20 @@ export const clientSettings: Entry<SettingsRootTab>[] = [
  { tab: "appearance", label: "settings.general.section.appearance" },
  { tab: "notifications", label: "settings.tab.notifications" },
  { tab: "shortcuts", label: "settings.shortcuts.title", keywords: "keybind keyboard hotkey" },
+  {
+    tab: "pairing",
+    label: "settings.pairing.title",
+    keywords: "pair device qr local",
+    available: "desktop",
+  },
+  {
+    tab: "pairing",
+    label: "pair.screenActive.title",
+    description: "pair.screenActive.description",
+    target: "settings-keep-screen-active",
+    keywords: "display sleep awake local",
+    available: "desktop",
+  },
  { tab: "experimental", label: "settings.tab.experimental" },
  { tab: "about", label: "settings.tab.about", keywords: "version license credits" },
  { tab: "general", label: "settings.general.row.language.title", target: "settings-language" },
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Aiden Cline	41baa4112b	fix(core): serialize AI SDK reasoning fragments	2026-09-22 11:37:04 -05:00
Aiden Cline	067a528b1d	refactor(ai): rename evaluation action to run (#50529 )	2026-09-22 09:47:23 -05:00
Shoubhit DashandBrendonovich	788f0affcb	feat(cli): pair with direct server links (#49971 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-09-22 20:04:52 +05:30
opencode-agent[bot]andjlongster	18eeb3201d	refactor(tui): break composer import cycle (#50637 ) Co-authored-by: jlongster <17031+jlongster@users.noreply.github.com>	2026-09-22 09:49:53 -04:00
opencode	8864eb507e	sync release versions for v2.0.14	2026-09-22 13:13:11 +00:00
opencode-agent[bot]	e0ddc47aa4	chore(core): refresh bundled models.dev snapshot	2026-09-22 12:20:10 +00:00
Shoubhit Dash	2f06f9d58b	fix(tui): keep worktrees out of projects (#50612 )	2026-09-22 17:35:00 +05:30
Luke Parker	8e62ad7adc	fix(desktop): omit undefined fields from renderer IPC payloads (#50599 )	2026-09-22 20:52:35 +10:00
Victor Navarro	956de96d8b	docs(console): add API reference for inference, BYOK, usage, and budgets (#50582 )	2026-09-22 10:10:47 +00:00
opencode	be4e5a6d06	sync release versions for v2.0.13	2026-09-22 10:08:00 +00:00
Luke Parker	fbacf6a126	feat(app): sign in to OpenCode Go and Console through the browser (#50267 )	2026-09-22 19:34:30 +10:00
opencode-agent[bot]	9c18abce47	chore: update nix node_modules hashes	2026-09-22 08:47:57 +00:00
Brendan AllanandBrendonovich	080b7671de	feat(desktop): add local device pairing (#49291 ) Co-authored-by: Brendonovich <Brendonovich@users.noreply.github.com>	2026-09-22 16:24:56 +08:00
opencode-agent[bot]andBrendonovich	dcfe1ec7bd	feat(app): add /btw side question panel (#49750 ) Co-authored-by: Brendonovich <Brendonovich@users.noreply.github.com>	2026-09-22 15:20:09 +08:00
opencode-agent[bot]	ceace24a3e	chore: update nix node_modules hashes	2026-09-22 05:45:49 +00:00
Aiden Cline	19e1357a06	fix(core): stop forcing a consent prompt on MCP OAuth login (#50519 )	2026-09-22 00:25:06 -05:00
opencode-agent[bot]	4b381ac6a1	fix(tui): clear the active session tab (#50524 )	2026-09-22 00:53:42 -04:00
Aiden Cline	07d48e1ffb	feat(ai): add experimental evaluation API (#50506 )	2026-09-21 23:30:38 -05:00
Aiden Cline	9fdcb8da41	fix(codemode): coerce built-in arguments as in JS instead of requiring numbers and strings (#50492 )	2026-09-21 23:04:04 -05:00
Aiden Cline	ba61ac6730	fix(ai): preserve Vertex function call ids (#50504 )	2026-09-21 23:03:24 -05:00
Aiden Cline	94b9133910	fix(core): share child prompt cache affinity (#50495 )	2026-09-21 22:44:43 -05:00
Aiden Cline	6f8c5ae0aa	fix(codemode): bind generator parameters at the call, not the first next() (#50489 )	2026-09-21 22:42:10 -05:00
Aiden Cline	60673aaef3	fix(core): run session HTTP hooks on the AI SDK route (#50487 )	2026-09-21 22:41:06 -05:00
Aiden Cline	651529d64e	fix(codemode): coerce any value to a property key (#50479 )	2026-09-21 21:35:20 -05:00
opencode-agent[bot]	532f25d0d4	feat(tui): restore sidebar onboarding (#50475 )	2026-09-21 22:17:22 -04:00
opencode-agent[bot]andjlongster	643c4c3500	fix: remove first-month Go pricing (#50473 ) Co-authored-by: jlongster <17031+jlongster@users.noreply.github.com>	2026-09-21 21:55:12 -04:00
opencode-agent[bot]andBrendonovich	9d531435b4	fix(desktop): stop signing macOS DMGs (#50469 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-09-22 01:35:21 +00:00
opencode-agent[bot]	5b9dc35eec	feat(tui): add automatic tabs mode (#50456 )	2026-09-22 01:00:26 +00:00
Aiden Cline	1814dd9799	test: stabilize Windows CI without longer timeouts (#50454 )	2026-09-21 18:30:30 -05:00
Aiden Cline	1e1cd042ea	feat(codemode): name the closest tool in unknown-tool errors (#50455 )	2026-09-21 18:14:31 -05:00
Aiden Cline	02566f6219	fix(codemode): live Map/Set forEach, generator prototypes, repeated function declarations, delete on non-references (#50450 )	2026-09-21 18:09:45 -05:00
opencode-agent[bot]andrekram1-node	f488aa3f79	fix(tui): persist MCP sidebar state (#50447 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-21 17:28:23 -05:00
Aiden Cline	97457ec7a3	feat(codemode): accept tools.-prefixed namespaces in search (#50438 )	2026-09-21 16:59:31 -05:00
James Long	d62049aab4	fix(tui): set renderer listener budget to 15 (#50442 )	2026-09-21 17:55:27 -04:00
Aiden Cline	096ac95773	fix(codemode): drop the parameter name from rendered signatures (#50435 )	2026-09-21 16:44:46 -05:00
Aiden Cline	4cc9b90f27	fix(codemode): add Promise.try and surface a failing iterator close on generator return (#50419 )	2026-09-21 15:35:11 -05:00
James Long	990463aa9f	refactor(tui): favor dark theme base (#50412 )	2026-09-21 16:23:38 -04:00
opencode-agent[bot]andrekram1-node	cd39063622	test(core): stabilize browser idle attachment (#50418 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-21 14:45:33 -05:00
Aiden Cline	4c944a86d7	fix(core): tell the model search is synchronous (#50417 )	2026-09-21 14:35:46 -05:00
Aiden Cline	97e833a297	feat(codemode): add Iterator helpers and Iterator.from (#50410 )	2026-09-21 14:14:24 -05:00
xin zhuangandSimon Klee	b8aa08f260	fix(tui): complete Mini exit aliases (#50388 ) Co-authored-by: Simon Klee <hello@simonklee.dk>	2026-09-21 17:04:58 +00:00
Aiden Cline	3f0118022b	feat(codemode): add Promise.withResolvers, print errors in console, name values in iterable errors (#50389 )	2026-09-21 11:56:15 -05:00
Simon Klee	6f76c31ca7	tui: resize /btw dialog to terminal (#50392 )	2026-09-21 16:44:18 +00:00
Aiden Cline	f90beeb9b8	fix(core): say plainly that catalog tools and search only work inside execute (#50384 )	2026-09-21 11:13:33 -05:00
Adam	4b9a3d80fc	feat(core): enforce Console-managed policies (#49729 )	2026-09-21 11:10:57 -05:00
Aiden Cline	1316576720	refactor(codemode): type program values and let built-ins answer for themselves (#50191 )	2026-09-21 11:03:16 -05:00
opencode-agent[bot]andnexxeln	2f0c861af0	fix(cli): show actionable upgrade errors (#50346 ) Co-authored-by: nexxeln <95541290+nexxeln@users.noreply.github.com>	2026-09-21 19:09:56 +05:30
opencode-agent[bot]	4d94777d4d	chore(core): refresh bundled models.dev snapshot	2026-09-21 12:19:57 +00:00
opencode-agent[bot]	46ebde65e9	chore: update nix node_modules hashes	2026-09-21 11:58:21 +00:00
Luke Parker	932c12ad1d	chore(desktop): upgrade Electron to 44.4.3 (#50327 )	2026-09-21 21:33:49 +10:00
opencode	6f655dcbab	sync release versions for v2.0.12	2026-09-21 09:57:01 +00:00
Luke Parker	ab60f08c69	fix(app): open Review pane for browser focus in background sessions (#50284 )	2026-09-21 06:08:36 +00:00
Luke Parker	60ed84ecd1	feat(app): open agent-referenced files as rich artifact tabs (#49882 )	2026-09-21 15:20:15 +10:00
Luke Parker	8aebed170a	fix(app): show empty review state for projects without VCS (#50265 )	2026-09-21 14:54:47 +10:00
opencode-agent[bot]Brendonovich Kit Langton	14148a0ea4	fix(app): restore server status spacing (#50273 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com> Co-authored-by: Kit Langton <kit.langton@gmail.com>	2026-09-21 12:37:19 +08:00
Aiden Cline	7f51fbd878	feat(codemode): rank whole-word path matches above substring matches in search (#50275 )	2026-09-20 22:59:01 -05:00
Aiden Cline	cbdd1f66da	fix(codemode): locate failures in the submitted source (#50197 )	2026-09-20 20:47:54 -05:00
Luke Parker	788eb0fa29	fix(cli): report fatal startup causes on stderr (#50240 )	2026-09-20 22:57:20 +00:00
opencode-agent[bot]andkitlangton	58fcad77a8	feat(tui): copy session ID from tab menu (#50181 ) Co-authored-by: kitlangton <7587245+kitlangton@users.noreply.github.com>	2026-09-20 19:15:37 +00:00
Aiden Cline	c555559ac1	refactor(plugin): name tool execution context (#50195 )	2026-09-20 11:36:19 -05:00
Aiden Cline	e3a3fa7108	fix(plugin): forward Promise tool cancellation (#50190 )	2026-09-20 11:22:49 -05:00
opencode-agent[bot]	6238af397e	chore(core): refresh bundled models.dev snapshot	2026-09-20 16:17:29 +00:00
Aiden Cline	7ffd75faf6	fix(core): restore anthropic budget variants (#50182 )	2026-09-20 10:50:21 -05:00
opencode-agent[bot]	1f8ab95695	chore(core): refresh bundled models.dev snapshot	2026-09-20 15:37:06 +00:00
Aiden Cline	62dc1f7696	feat(codemode): add toLocaleString, Error.isError, and Map.getOrInsert (#50098 )	2026-09-20 10:23:23 -05:00
opencode-agent[bot]	66f10ab7bf	chore(core): refresh bundled models.dev snapshot	2026-09-20 14:37:06 +00:00
opencode-agent[bot]	1ca8f63a79	chore(core): refresh bundled models.dev snapshot	2026-09-20 13:36:51 +00:00
opencode-agent[bot]	03bcdd580d	chore(core): refresh bundled models.dev snapshot	2026-09-20 12:43:39 +00:00
opencode-agent[bot]	cc502f7e5f	chore(core): refresh bundled models.dev snapshot	2026-09-20 11:37:37 +00:00
opencode-agent[bot]	64ce8771c0	chore(core): refresh bundled models.dev snapshot	2026-09-20 10:37:01 +00:00
opencode-agent[bot]	702a73d91a	chore(core): refresh bundled models.dev snapshot	2026-09-20 09:37:50 +00:00
opencode	991b727eb8	sync release versions for v2.0.11	2026-09-20 08:57:41 +00:00
opencode-agent[bot]	ba342ce227	chore(core): refresh bundled models.dev snapshot	2026-09-20 08:42:13 +00:00
David Hill	1464545665	fix(app): center timeline beside summary (#49620 )	2026-09-20 18:06:32 +10:00
David Hill	fecacc9e68	fix(app): match vertical nav tab states (#49619 )	2026-09-20 18:03:49 +10:00
David HillandLukeParkerDev	1f73b4806b	fix(desktop): polish browser panel states and navigation (#49432 ) Co-authored-by: LukeParkerDev <10430890+Hona@users.noreply.github.com>	2026-09-20 07:54:25 +00:00
opencode-agent[bot]	da2ce02596	chore(core): refresh bundled models.dev snapshot	2026-09-20 07:38:48 +00:00
opencode-agent[bot]	25f35dcfb8	chore(core): refresh bundled models.dev snapshot	2026-09-20 06:49:40 +00:00
Luke Parker	717f81ce08	chore(desktop): attribute renderer CPU profiles to source files (#50114 )	2026-09-20 16:30:35 +10:00
Luke Parker	5fdfcc7a80	perf(desktop): hand the window its persisted stores before the first render (#50113 )	2026-09-20 16:29:02 +10:00
Luke Parker	0530c8e512	perf(desktop): talk to the main process without the Effect runtime in the renderer (#50112 )	2026-09-20 16:26:08 +10:00
Luke Parker	1d8cf4564b	perf(desktop): move startup work that the first window does not need off its path (#50111 )	2026-09-20 16:23:37 +10:00
Luke Parker	7e88f6bb18	perf(desktop): bundle the renderer's initial module graph as one chunk (#50110 )	2026-09-20 16:19:28 +10:00
Luke Parker	af592fb779	perf(desktop): serve the renderer's first assets before evaluating the main bundle (#50109 )	2026-09-20 16:18:50 +10:00
Luke Parker	7fc3f68007	perf(desktop): boot the renderer alongside the main bundle (#50108 )	2026-09-20 16:15:58 +10:00
opencode-agent[bot]	cdcbb0047e	chore(core): refresh bundled models.dev snapshot	2026-09-20 05:38:29 +00:00
opencode-agent[bot]	a1956a7522	chore(core): refresh bundled models.dev snapshot	2026-09-20 04:42:05 +00:00
opencode-agent[bot]	55bc7fd403	chore(core): refresh bundled models.dev snapshot	2026-09-20 03:43:32 +00:00
opencode-agent[bot]	3049b1e684	chore(core): refresh bundled models.dev snapshot	2026-09-20 02:45:23 +00:00
opencode-agent[bot]	1f36a7aff8	chore(core): refresh bundled models.dev snapshot	2026-09-20 01:31:11 +00:00
Aiden Cline	eb0e26b974	feat(codemode): return live iterators from keys, values, and entries (#50061 )	2026-09-19 18:46:35 -05:00
opencode-agent[bot]	6f2b0e7833	chore(core): refresh bundled models.dev snapshot	2026-09-19 23:38:19 +00:00
opencode-agent[bot]	f153255942	chore(core): refresh bundled models.dev snapshot	2026-09-19 22:37:11 +00:00
opencode-agent[bot]	fef2fad76f	chore(core): refresh bundled models.dev snapshot	2026-09-19 22:15:20 +00:00
Aiden Cline	f30d06ea34	fix(core): pin the session to http after repeated websocket stream losses (#50031 )	2026-09-19 16:45:54 -05:00
Kit Langton	dfa44e94e8	fix(tui): use focused action token for question form border (#50037 )	2026-09-19 19:07:10 +00:00
Aiden Cline	b81e10a461	fix(core): re-read models.dev catalog after subscribing to Refreshed (#50012 )	2026-09-19 13:31:38 -05:00
Aiden Cline	65c93b69ed	fix(ai): never fail decoding on Responses error frames (#49402 )	2026-09-19 13:27:05 -05:00
Aiden Cline	b073b052d3	fix(ai): remove bounded websocket inbound queues (#50026 )	2026-09-19 13:26:37 -05:00
Aiden Cline	728b2b6052	fix(core): honor session permissions in skill and MCP discovery (#50015 )	2026-09-19 12:59:09 -05:00
Aiden Cline	cc3ce20ab4	feat(codemode): add the Headers built-in (#49280 )	2026-09-19 12:35:14 -05:00
Aiden Cline	4ad5001be2	chore(core): refresh bundled models.dev snapshot (#50009 )	2026-09-19 12:24:10 -05:00
Matt SimpsonandAiden Cline	14b3c2ea4b	feat(cli): support Vite+ installations (#49624 ) Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>	2026-09-19 12:16:47 -05:00
opencode-agent[bot]andrekram1-node	558bd54c9b	fix(tui): use muted autocomplete label text (#50008 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-19 12:16:41 -05:00
Filip	7e70f7e1ab	feat(tui): label mention autocomplete options (#48551 )	2026-09-19 16:05:03 +02:00
opencode	cb6d95b7ef	sync release versions for v2.0.10	2026-09-19 13:40:59 +00:00
opencode-agent[bot]andBrendonovich	7020944359	fix(app): restore mobile tab interactions (#49964 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-09-19 21:00:45 +08:00
Shoubhit Dash	4b00dd2713	feat(tui): session-scoped plugin toasts (#49962 )	2026-09-19 18:24:38 +05:30
Chris YangandBrendan Allan	b447627f5f	fix(app): keep shortcuts search field focused while typing (#49779 ) Co-authored-by: Brendan Allan <14191578+Brendonovich@users.noreply.github.com>	2026-09-19 20:43:58 +08:00
opencode-agent[bot]andBrendonovich	5848ee0d24	fix(app): restore attachment classification (#49932 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-09-19 09:13:29 +00:00
Dax Raad	839aa25c3e	feat(cli): publish Homebrew formula	2026-09-19 04:37:36 -04:00
Dax Raad	c42f1c9232	Revert "feat(web): add v2 announcement banner to legacy docs" This reverts commit `7b7a67080e`.	2026-09-19 03:24:40 -04:00
Kit Langton	417f6d234d	fix(tui): restore running and unread status hue aliases (#49907 )	2026-09-19 02:05:53 -04:00
opencode	45a13af0ee	sync release versions for v2.0.9	2026-09-19 05:13:01 +00:00
Luke Parker	e50d845451	fix(desktop): run WSL commands with --exec so inline scripts are not pre-expanded (#49902 )	2026-09-19 14:36:04 +10:00
Kit Langton	56816621f8	fix(tui): restore foreground hue step for tab status colors (#49899 )	2026-09-19 04:33:23 +00:00
Luke Parker	7125f5f8b5	chore(desktop): measure the startup bench from the screen (#49894 )	2026-09-19 14:06:58 +10:00
opencode-agent[bot]	01a6ed8d97	chore: update nix node_modules hashes	2026-09-19 02:49:44 +00:00
opencode-agent[bot]rekram1-node Aiden Cline	004583d598	refactor(codemode): remove TypeScript stripping (#49870 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com> Co-authored-by: Aiden Cline <aidenpcline@gmail.com>	2026-09-18 21:24:11 -05:00
Aiden Cline	cbd911368e	refactor(schema): separate provider and model settings (#49850 )	2026-09-18 21:20:08 -05:00
opencode-agent[bot]	8bfb247854	chore: update nix node_modules hashes	2026-09-19 02:20:04 +00:00
Luke Parker	dd71cdbd84	fix(app): stop retaining failed sends in history and oversized toast text (#49717 )	2026-09-19 12:00:55 +10:00
Luke Parker	1c90e8f01c	perf(app): drop luxon for the three date operations that used it (#49876 )	2026-09-19 12:00:32 +10:00
Luke Parker	9843d13c29	chore(desktop): record startup marks for the benchmark (#49872 )	2026-09-19 12:00:03 +10:00
Luke Parker	871db0025e	fix(browser): describe tabs.open focus as an explicit opt-out (#49877 )	2026-09-19 11:55:49 +10:00
Dax Raad	7b7a67080e	feat(web): add v2 announcement banner to legacy docs	2026-09-18 21:35:13 -04:00
Aiden Cline	3361953fe1	fix(core): explain user-invoked skills in skill guidance (#49871 )	2026-09-18 20:32:36 -05:00
opencode-agent[bot]andrekram1-node	e9201ce933	fix(core): retain console config after refresh errors (#49873 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-18 20:22:23 -05:00
Dax Raad	b38d72e174	docs: link v1 docs from header	2026-09-18 20:54:48 -04:00
Luke Parker	e1e2efe8ec	perf(desktop): show the first window the moment Electron is ready (#49869 )	2026-09-19 10:41:27 +10:00
Luke Parker	c2b171d7c4	perf(client): poll for a starting service every 25 ms (#49780 )	2026-09-19 10:40:32 +10:00
Luke Parker	c3bf8864b9	perf(ui): let the resize observer take the first scrollbar measurement (#49778 )	2026-09-19 10:38:33 +10:00
Luke Parker	3693f56374	perf(desktop): enable the V8 code cache for the renderer scheme (#49767 )	2026-09-19 10:35:07 +10:00
Luke Parker	971f4e558e	perf(desktop): load node-pty when an interactive WSL install starts (#49789 )	2026-09-19 10:34:44 +10:00
Luke Parker	dd95e3f2ed	perf(desktop): collect orphaned draft blobs after the window is up (#49797 )	2026-09-19 10:34:25 +10:00
Luke Parker	dfde4628e3	perf(desktop): only persist the background colour when it changes (#49770 )	2026-09-19 10:34:04 +10:00
Luke Parker	e755fce13d	perf(desktop): leave declarations and source maps out of the asar (#49772 )	2026-09-19 10:33:48 +10:00
Luke Parker	5b565e8923	perf(desktop): create windows before the background service connects (#49763 )	2026-09-19 10:33:39 +10:00
Kit Langton	ec8d95f1f2	fix(simulation): include images in UI captures (#49868 )	2026-09-18 17:21:44 -07:00
opencode-agent[bot]	ea52d18ec5	chore: update nix node_modules hashes	2026-09-18 23:57:47 +00:00
Aiden Clineandrekram1-node	0f9504d6c5	feat(plugin): add list to the tool domain (#49838 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-18 18:51:37 -05:00
Luke Parker	f6353a48b5	perf(desktop): replace electron-store with a plain JSON settings store (#49791 )	2026-09-19 09:41:44 +10:00
Luke Parker	4facc03371	perf(desktop): remember window bounds without electron-window-state (#49792 )	2026-09-19 09:41:15 +10:00
Luke Parker	485a027c1a	perf(desktop): load the browser pane on first use (#49774 )	2026-09-19 09:39:36 +10:00
Luke Parker	988a66ca4f	perf(desktop): ship the bundled CLI version instead of spawning for it (#49762 )	2026-09-19 09:36:55 +10:00
Luke Parker	98c6b41573	chore(desktop): add a packaged startup benchmark (#49758 )	2026-09-19 09:23:09 +10:00
opencode-agent[bot]andthdxr	4ee9bf0213	revert(core): remove autonomous goal command (#49866 ) Co-authored-by: thdxr <826656+thdxr@users.noreply.github.com>	2026-09-18 23:14:36 +00:00
James Long	681338c533	refactor(theme): detect theme format by fields (#49853 )	2026-09-18 17:19:21 -04:00
Dax	5464aa4a74	feat(core): add autonomous goal command (#45379 )	2026-09-18 20:59:08 +00:00
James Long	36083c9520	docs(www): document theme format and workflow (#49855 )	2026-09-18 16:46:32 -04:00
James Long	168aba6183	feat(theme): register native V2 opencode theme (#49846 )	2026-09-18 16:33:59 -04:00
Kit Langton	ec19dc09c7	fix(sdk): support Node package imports (#49810 )	2026-09-18 13:10:59 -07:00
Aiden Cline	fca4701688	fix(ai): allow future Anthropic option values (#49835 )	2026-09-18 14:24:11 -05:00
James Long	c720ca20ed	refactor(theme): rename default tokens to base (#49837 )	2026-09-18 15:20:15 -04:00
James Long	dae1e8abbd	docs(www): finalize background color (#49203 )	2026-09-18 15:07:49 -04:00
James Long	ffe4d1522c	refactor(theme): derive V1 hue angles from swatches (#49839 )	2026-09-18 15:00:09 -04:00
James Long	b1860465cd	refactor(theme): split base and mode overrides (#49826 )	2026-09-18 14:48:27 -04:00
CestercianandAiden Cline	cab11795e5	fix(tui): pass markdown renderer into /btw answer dialog (#49804 ) Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>	2026-09-18 13:32:11 -05:00
James Long	810e79a6d4	refactor(theme): align hue direction with mode (#49820 )	2026-09-18 13:29:19 -04:00