feat(session): allow metadata updates

2026-09-22 16:47:34 +00:00 · 2026-09-19 18:05:37 +00:00
202 changed files with 1413 additions and 2879 deletions
@@ -32,7 +32,7 @@
    },
    "packages/ai": {
      "name": "@opencode/ai",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@aws-sdk/credential-providers": "3.1057.0",
        "@opencode/schema": "workspace:*",
@@ -54,7 +54,7 @@
    },
    "packages/app": {
      "name": "@opencode/app",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@corvu/drawer": "catalog:",
        "@dnd-kit/abstract": "0.5.0",
@@ -111,7 +111,7 @@
    },
    "packages/cli": {
      "name": "@opencode/cli",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "bin": {
        "opencode2": "./bin/opencode2.cjs",
      },
@@ -175,7 +175,7 @@
    },
    "packages/client": {
      "name": "@opencode/client",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/protocol": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -191,7 +191,7 @@
        "zod": "catalog:",
      },
      "peerDependencies": {
-        "effect": "4.0.0-rc.115",
+        "effect": "4.0.0-rc.112",
        "solid-js": ">=1.9.0",
      },
      "optionalPeers": [
@@ -201,7 +201,7 @@
    },
    "packages/codemode": {
      "name": "@opencode/codemode",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "acorn": "8.15.0",
        "effect": "catalog:",
@@ -214,7 +214,7 @@
    },
    "packages/console/app": {
      "name": "@opencode/console-app",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@ibm/plex": "6.4.1",
@@ -250,7 +250,7 @@
    },
    "packages/console/core": {
      "name": "@opencode/console-core",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@aws-sdk/client-sts": "3.782.0",
        "@jsx-email/render": "1.1.1",
@@ -277,7 +277,7 @@
    },
    "packages/console/function": {
      "name": "@opencode/console-function",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@openauthjs/openauth": "0.0.0-20250322224806",
        "@opencode/console-core": "workspace:*",
@@ -294,7 +294,7 @@
    },
    "packages/console/mail": {
      "name": "@opencode/console-mail",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@jsx-email/all": "2.2.3",
        "@jsx-email/cli": "1.4.3",
@@ -318,7 +318,7 @@
    },
    "packages/console/support": {
      "name": "@opencode/console-support",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@opencode/console-core": "workspace:*",
@@ -338,7 +338,7 @@
    },
    "packages/core": {
      "name": "@opencode/core",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@ai-sdk/cohere": "3.0.27",
        "@ai-sdk/gateway": "3.0.104",
@@ -402,12 +402,11 @@
        "@types/node": "catalog:",
        "@types/which": "3.0.4",
        "drizzle-kit": "catalog:",
-        "fast-check": "catalog:",
      },
    },
    "packages/desktop": {
      "name": "@opencode/desktop",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@zip.js/zip.js": "2.7.62",
        "electron-context-menu": "4.1.2",
@@ -456,7 +455,7 @@
    },
    "packages/enterprise": {
      "name": "@opencode/enterprise",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@hono/standard-validator": "catalog:",
        "@opencode-ai/sdk": "1.18.21",
@@ -493,7 +492,7 @@
    },
    "packages/function": {
      "name": "@opencode/function",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@octokit/auth-app": "8.0.1",
        "@octokit/rest": "catalog:",
@@ -509,9 +508,9 @@
    },
    "packages/http-recorder": {
      "name": "@opencode/http-recorder",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
-        "@effect/platform-node-shared": "4.0.0-rc.115",
+        "@effect/platform-node-shared": "4.0.0-rc.112",
      },
      "devDependencies": {
        "@effect/platform-node": "catalog:",
@@ -528,7 +527,7 @@
    },
    "packages/httpapi-codegen": {
      "name": "@opencode/httpapi-codegen",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "effect": "catalog:",
        "prettier": "3.6.2",
@@ -541,7 +540,7 @@
    },
    "packages/latex": {
      "name": "@opencode/latex",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -555,7 +554,7 @@
    },
    "packages/merman": {
      "name": "@opencode/merman",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -570,7 +569,7 @@
    },
    "packages/plugin": {
      "name": "@opencode/plugin",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@ai-sdk/provider": "3.0.8",
        "@opencode/ai": "workspace:*",
@@ -609,7 +608,7 @@
    },
    "packages/plugin-browser": {
      "name": "@opencode/plugin-browser",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -639,7 +638,7 @@
    },
    "packages/protocol": {
      "name": "@opencode/protocol",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/schema": "workspace:*",
        "effect": "catalog:",
@@ -654,7 +653,7 @@
    },
    "packages/schema": {
      "name": "@opencode/schema",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@standard-schema/spec": "catalog:",
        "effect": "catalog:",
@@ -678,7 +677,7 @@
    },
    "packages/sdk": {
      "name": "@opencode/sdk",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -699,7 +698,7 @@
    },
    "packages/server": {
      "name": "@opencode/server",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@effect/platform-node": "catalog:",
        "@effect/platform-node-shared": "catalog:",
@@ -721,7 +720,7 @@
    },
    "packages/session-ui": {
      "name": "@opencode/session-ui",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode/client": "workspace:*",
@@ -756,7 +755,7 @@
    },
    "packages/simulation": {
      "name": "@opencode/simulation",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/ai": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -776,7 +775,7 @@
    },
    "packages/stats/app": {
      "name": "@opencode/stats-app",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@ibm/plex": "6.4.1",
        "@kobalte/core": "catalog:",
@@ -810,7 +809,7 @@
    },
    "packages/stats/core": {
      "name": "@opencode/stats-core",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@aws-sdk/client-athena": "3.933.0",
        "@planetscale/database": "1.19.0",
@@ -829,7 +828,7 @@
    },
    "packages/stats/server": {
      "name": "@opencode/stats-server",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@aws-sdk/client-firehose": "3.933.0",
        "@effect/platform-node": "catalog:",
@@ -875,7 +874,7 @@
    },
    "packages/theme": {
      "name": "@opencode/theme",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opentui/core": "catalog:",
        "effect": "catalog:",
@@ -889,7 +888,7 @@
    },
    "packages/tui": {
      "name": "@opencode/tui",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -924,7 +923,7 @@
    },
    "packages/ui": {
      "name": "@opencode/ui",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@pierre/diffs": "catalog:",
@@ -959,7 +958,7 @@
    },
    "packages/util": {
      "name": "@opencode/util",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@effect/opentelemetry": "catalog:",
        "@effect/platform-node": "catalog:",
@@ -992,7 +991,7 @@
    },
    "packages/web": {
      "name": "@opencode/web",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "@astrojs/cloudflare": "12.6.3",
        "@astrojs/markdown-remark": "6.3.1",
@@ -1033,7 +1032,7 @@
    },
    "services/update": {
      "name": "@opencode/update",
-      "version": "2.0.11",
+      "version": "2.0.10",
      "dependencies": {
        "jose": "6.0.11",
        "semver": "catalog:",
@@ -1098,10 +1097,10 @@
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    "@hono/standard-validator": "0.2.0",
    "@hono/zod-validator": "0.4.2",
    "@kobalte/core": "0.13.13",
@@ -1141,8 +1140,7 @@
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    "drizzle-kit": "1.0.0-rc.5-ab785fc",
    "drizzle-orm": "1.0.0-rc.5-169397b",
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-    "fast-check": "4.9.0",
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    "hono": "4.10.7",
@@ -1674,13 +1672,13 @@

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-    "effect": ["effect@4.0.0-rc.115", "", {}, "sha512-ogYulZ5ffeOzrJqQrG0XOkDO5lKn2s9KNHhoxJy/6wKUkF0i12dlVXWA9TgsgQ+zV/JzizyG0+XMPepZEQX6vw=="],
+    "effect": ["effect@4.0.0-rc.112", "", { "dependencies": { "fast-check": "^4.9.0", "msgpackr": "^2.0.5" } }, "sha512-wXxwuh1Ywnv4cPRM3Wfa0vDwuOHnZ1TsTgHJkG9XgzND6inhBH9n1vBxhg3iIXOia/OrpmvVmd3lrD4vq6bF3A=="],

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

@@ -4702,7 +4712,7 @@

    "micromatch": ["micromatch@4.0.8", "", { "dependencies": { "braces": "^3.0.3", "picomatch": "^2.3.1" } }, "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA=="],

-    "mime": ["mime@3.0.0", "", { "bin": { "mime": "cli.js" } }, "sha512-jSCU7/VB1loIWBZe14aEYHU/+1UMEHoaO7qxCOVJOw9GgH72VAWppxNcjU+x9a2k3GSIBXNKxXQFqRvvZ7vr3A=="],
+    "mime": ["mime@4.1.0", "", { "bin": { "mime": "bin/cli.js" } }, "sha512-X5ju04+cAzsojXKes0B/S4tcYtFAJ6tTMuSPBEn9CPGlrWr8Fiw7qYeLT0XyH80HSoAoqWCaz+MWKh22P7G1cw=="],

    "mime-db": ["mime-db@1.54.0", "", {}, "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ=="],

@@ -4750,6 +4760,10 @@

    "ms": ["ms@2.1.3", "", {}, "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="],

+    "msgpackr": ["msgpackr@2.0.5", "", { "optionalDependencies": { "msgpackr-extract": "^3.0.4" } }, "sha512-cef05H/dSYpLpqp3sj/qyZh5vhUYCalnaLO7j1yOmpsR0y/XwLVtK7r5gn+U/F7CTEfMowcGhlUQJDLcLf7jcA=="],
+
+    "msgpackr-extract": ["msgpackr-extract@3.0.4", "", { "dependencies": { "node-gyp-build-optional-packages": "5.2.2" }, "optionalDependencies": { "@msgpackr-extract/msgpackr-extract-darwin-arm64": "3.0.4", "@msgpackr-extract/msgpackr-extract-darwin-x64": "3.0.4", "@msgpackr-extract/msgpackr-extract-linux-arm": "3.0.4", "@msgpackr-extract/msgpackr-extract-linux-arm64": "3.0.4", "@msgpackr-extract/msgpackr-extract-linux-x64": "3.0.4", "@msgpackr-extract/msgpackr-extract-win32-x64": "3.0.4" }, "bin": { "download-msgpackr-prebuilds": "bin/download-prebuilds.js" } }, "sha512-4kmO/MdyUIkLIvTPr8VHLil4AtoKIoniWPIEk5+CDy0xnWC84azhSFmuJ7PxZdsYtiP5kEeQsORAVIeMgxT+Hw=="],
+
    "muggle-string": ["muggle-string@0.4.1", "", {}, "sha512-VNTrAak/KhO2i8dqqnqnAHOa3cYBwXEZe9h+D5h/1ZqFSTEFHdM65lR7RoIqq3tBBYavsOXV84NoHXZ0AkPyqQ=="],

    "mustache": ["mustache@4.2.0", "", { "bin": { "mustache": "bin/mustache" } }, "sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ=="],
@@ -4792,6 +4806,8 @@

    "node-gyp-build": ["node-gyp-build@4.8.4", "", { "bin": { "node-gyp-build": "bin.js", "node-gyp-build-optional": "optional.js", "node-gyp-build-test": "build-test.js" } }, "sha512-LA4ZjwlnUblHVgq0oBF3Jl/6h/Nvs5fzBLwdEF4nuxnFdsfajde4WfxtJr3CaiH+F6ewcIB/q4jQ4UzPyid+CQ=="],

+    "node-gyp-build-optional-packages": ["node-gyp-build-optional-packages@5.2.2", "", { "dependencies": { "detect-libc": "^2.0.1" }, "bin": { "node-gyp-build-optional-packages": "bin.js", "node-gyp-build-optional-packages-optional": "optional.js", "node-gyp-build-optional-packages-test": "build-test.js" } }, "sha512-s+w+rBWnpTMwSFbaE0UXsRlg7hU4FjekKU4eyAih5T8nJuNZT1nNsskXpxmeqSK9UzkBl6UgRlnKc8hz8IEqOw=="],
+
    "node-html-parser": ["node-html-parser@7.1.0", "", { "dependencies": { "css-select": "^5.1.0", "he": "1.2.0" } }, "sha512-iJo8b2uYGT40Y8BTyy5ufL6IVbN8rbm/1QK2xffXU/1a/v3AAa0d1YAoqBNYqaS4R/HajkWIpIfdE6KcyFh1AQ=="],

    "node-int64": ["node-int64@0.4.0", "", {}, "sha512-O5lz91xSOeoXP6DulyHfllpq+Eg00MWitZIbtPfoSEvqIHdl5gfcY6hYzDWnj0qD5tz52PI08u9qUvSVeUBeHw=="],
@@ -5588,7 +5604,7 @@

    "uncrypto": ["uncrypto@0.1.3", "", {}, "sha512-Ql87qFHB3s/De2ClA9e0gsnS6zXG27SkTiSJwjCc9MebbfapQfuPzumMIUMi38ezPZVNFcHI9sUIepeQfw8J8Q=="],

-    "undici": ["undici@8.10.2", "", {}, "sha512-/y4/bH9YNU5hi9NIrpOuvGXFcxrj3CMrV+/AYpowAYTpHn8gX/XPFjNy766FPoYY0miQhdW977JFWKGNhBdwyQ=="],
+    "undici": ["undici@8.10.0", "", {}, "sha512-HvltHd7avK13QIw/oLe4qoOLyoVSoafqJ2jYOrtMRBkbYT31eiBQ8O0ehRKZiEZCMEyLFQNIADpgCWC5fALvYQ=="],

    "undici-types": ["undici-types@7.16.0", "", {}, "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="],

@@ -6042,6 +6058,8 @@

    "@bufbuild/protoplugin/typescript": ["typescript@5.4.5", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ=="],

+    "@cloudflare/kv-asset-handler/mime": ["mime@3.0.0", "", { "bin": { "mime": "cli.js" } }, "sha512-jSCU7/VB1loIWBZe14aEYHU/+1UMEHoaO7qxCOVJOw9GgH72VAWppxNcjU+x9a2k3GSIBXNKxXQFqRvvZ7vr3A=="],
+
    "@cloudflare/vite-plugin/vite": ["vite@7.3.6", "", { "dependencies": { "esbuild": "^0.27.0 || ^0.28.0", "fdir": "^6.5.0", "picomatch": "^4.0.3", "postcss": "^8.5.6", "rollup": "^4.43.0", "tinyglobby": "^0.2.15" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^20.19.0 || >=22.12.0", "jiti": ">=1.21.0", "less": "^4.0.0", "lightningcss": "^1.21.0", "sass": "^1.70.0", "sass-embedded": "^1.70.0", "stylus": ">=0.54.8", "sugarss": "^5.0.0", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "jiti", "less", "lightningcss", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-4XP60spRGjSZFf1qYH+dJIkK2znL3zQfl9KkOV9MkkRR/3Dls0dxaBsQPTloEc5BLXWPL9vsOxopxyKoMmDueg=="],

    "@cloudflare/vite-plugin/ws": ["ws@8.18.0", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": ">=5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw=="],
@@ -6642,8 +6660,6 @@

    "tw-to-css/tailwindcss": ["tailwindcss@3.3.2", "", { "dependencies": { "@alloc/quick-lru": "^5.2.0", "arg": "^5.0.2", "chokidar": "^3.5.3", "didyoumean": "^1.2.2", "dlv": "^1.1.3", "fast-glob": "^3.2.12", "glob-parent": "^6.0.2", "is-glob": "^4.0.3", "jiti": "^1.18.2", "lilconfig": "^2.1.0", "micromatch": "^4.0.5", "normalize-path": "^3.0.0", "object-hash": "^3.0.0", "picocolors": "^1.0.0", "postcss": "^8.4.23", "postcss-import": "^15.1.0", "postcss-js": "^4.0.1", "postcss-load-config": "^4.0.1", "postcss-nested": "^6.0.1", "postcss-selector-parser": "^6.0.11", "postcss-value-parser": "^4.2.0", "resolve": "^1.22.2", "sucrase": "^3.32.0" }, "bin": { "tailwind": "lib/cli.js", "tailwindcss": "lib/cli.js" } }, "sha512-9jPkMiIBXvPc2KywkraqsUfbfj+dHDb+JPWtSJa9MLFdrPyazI7q6WX2sUrm7R9eVR7qqv3Pas7EvQFzxKnI6w=="],

-    "unifont/undici": ["undici@8.10.0", "", {}, "sha512-HvltHd7avK13QIw/oLe4qoOLyoVSoafqJ2jYOrtMRBkbYT31eiBQ8O0ehRKZiEZCMEyLFQNIADpgCWC5fALvYQ=="],
-
    "unplugin/acorn": ["acorn@8.18.0", "", { "bin": { "acorn": "bin/acorn" } }, "sha512-lGq+9yr1/GuAWaVYIHRjvvySG5/4VfKIvC8EWxStPdcDh/Ka7FG3twP6v4d5BkravUilhIAsG4Qj83t02LWUPQ=="],

    "unused-filename/escape-string-regexp": ["escape-string-regexp@5.0.0", "", {}, "sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw=="],
@@ -2,7 +2,7 @@
  "$schema": "https://json.schemastore.org/package.json",
  "name": "opencode",
  "description": "AI-powered development tool",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "private": true,
  "type": "module",
  "packageManager": "bun@1.4.2",
@@ -42,10 +42,10 @@
      "packages/stats/*"
    ],
    "catalog": {
-      "@effect/opentelemetry": "4.0.0-rc.115",
-      "@effect/platform-node": "4.0.0-rc.115",
-      "@effect/platform-node-shared": "4.0.0-rc.115",
-      "@effect/sql-sqlite-bun": "4.0.0-rc.115",
+      "@effect/opentelemetry": "4.0.0-rc.112",
+      "@effect/platform-node": "4.0.0-rc.112",
+      "@effect/platform-node-shared": "4.0.0-rc.112",
+      "@effect/sql-sqlite-bun": "4.0.0-rc.112",
      "@npmcli/arborist": "9.4.0",
      "@types/bun": "1.4.0",
      "@types/cross-spawn": "6.0.6",
@@ -79,8 +79,7 @@
      "dompurify": "3.4.14",
      "drizzle-kit": "1.0.0-rc.5-ab785fc",
      "drizzle-orm": "1.0.0-rc.5-169397b",
-      "effect": "4.0.0-rc.115",
-      "fast-check": "4.9.0",
+      "effect": "4.0.0-rc.112",
      "ai": "6.0.168",
      "cross-spawn": "7.0.6",
      "hono": "4.10.7",
@@ -14,7 +14,7 @@ import { OpenAI } from "@opencode/ai/providers"
 * hover imports and local values to see how the public API is typed.
 */

-const apiKey = Config.Redacted("OPENAI_API_KEY")
+const apiKey = Config.redacted("OPENAI_API_KEY")

 // 1. Pick a model. The provider helper records provider identity, protocol
 // choice, capabilities, deployment options, authentication, and defaults.
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "name": "@opencode/ai",
  "type": "module",
  "license": "MIT",
@@ -278,7 +278,7 @@ const readEnvFile = Effect.fn("RecordingEnv.readFile")(function* () {
 })

 const readConfigString = (provider: ConfigProvider.ConfigProvider, name: string) =>
-  Config.String(name)
+  Config.string(name)
    .parse(provider)
    .pipe(
      Effect.match({
@@ -73,6 +73,11 @@ 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) => OpenResponses.errorDetail(event).code
+const code = (event: OpenResponses.Event) => event.code || event.error?.code || event.response?.error?.code || undefined

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

-// 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.
+// Responses-compatible providers put streaming error details at the top level or
+// under `error`, and response failures under `response.error`. Accept all three shapes.
 // https://www.openresponses.org/specification
-const asText = (value: unknown) =>
-  typeof value === "string" && value.length > 0 ? value : typeof value === "number" ? String(value) : undefined
+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,
+  })

 export const Event = Schema.StructWithRest(
  Schema.Struct({
@@ -360,18 +400,31 @@ 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: Schema.optional(Schema.Unknown),
+          error: optionalNull(OpenResponsesErrorPayload),
        }),
        [Schema.Record(Schema.String, Schema.Unknown)],
      ),
    ),
-    code: Schema.optional(Schema.Unknown),
-    message: Schema.optional(Schema.Unknown),
-    error: Schema.optional(Schema.Unknown),
+    code: optionalNull(Schema.String),
+    message: Schema.optional(Schema.String),
+    param: optionalNull(Schema.String),
+    error: optionalNull(OpenResponsesErrorPayload),
    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 }
@@ -380,15 +433,16 @@ const decodeEventValue = Schema.decodeUnknownEffect(Event)
 const decodeFrame = Schema.decodeUnknownEffect(ProviderShared.Json)

 /**
- * 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.
+ * 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.
 */
 export const decodeChannelEvent = (frame: string) =>
  decodeFrame(frame).pipe(
    Effect.flatMap((value) =>
      decodeEventValue(
-        ProviderShared.isRecord(value) && value.type === undefined && value.error != null
+        ProviderShared.isRecord(value) &&
+          value.type === undefined &&
+          (typeof value.error === "string" || ProviderShared.isRecord(value.error))
          ? { ...value, type: "error" }
          : value,
      ),
@@ -1368,21 +1422,22 @@ const onResponseFinish = Effect.fn("OpenResponses.onResponseFinish")(function* (
  return [{ ...current, lifecycle }, events] satisfies StepResult
 })

-/** 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),
-  }
+// 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
 }

-// 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 detail = errorDetail(event)
-  const summary = detail.message && detail.code ? `${detail.code}: ${detail.message}` : (detail.message ?? detail.code)
+  const nested = event.error ?? event.response?.error ?? undefined
+  const summary = providerErrorMessage(event, nested)
  const message = summary ?? (body === "{}" ? fallback : body)
  const status =
    typeof event.status === "number"
@@ -1465,7 +1520,18 @@ export const step = (state: ParserState, event: NormalizedEvent) => {
  if (event.type === "response.output_item.done") return onOutputItemDone(state, event.item)
  if (event.type === "response.completed" || event.type === "response.incomplete") return onResponseFinish(state, event)
  if (event.type === "response.failed") return providerFailure(event, `${state.name} response failed`)
-  if (event.type === "error") return providerFailure(event, `${state.name} stream error`)
+  if (event.type === "error")
+    return decodeKnownErrorEvent(event).pipe(
+      Effect.mapError((cause) =>
+        ProviderShared.eventError(
+          state.id,
+          `${state.name} returned a malformed error event`,
+          ProviderShared.encodeJson(event),
+          cause,
+        ),
+      ),
+      Effect.flatMap(() => providerFailure(event, `${state.name} stream error`)),
+    )
  return Effect.succeed<StepResult>([state, NO_EVENTS])
 }

@@ -89,7 +89,7 @@ export const optional = (secret: Secret | undefined, source = "optional value")
    ? credential(Effect.fail(new MissingCredentialError(source)))
    : credentialFromSecret(secret, source)

-export const config = (name: string) => credentialFromSecret(Config.Redacted(name), name)
+export const config = (name: string) => credentialFromSecret(Config.redacted(name), name)

 export const effect = (load: Effect.Effect<Redacted.Redacted, CredentialError>) => credential(load)

@@ -215,9 +215,7 @@ export const fromWebSocket = (
 ): Effect.Effect<WebSocketConnection, AIError> =>
  Effect.gen(function* () {
    yield* waitOpen(ws, input)
-    // 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 messages = yield* Queue.bounded<string | Uint8Array, AIError | Cause.Done<void>>(128)

    const oversized = (message: string | Uint8Array) =>
      typeof message === "string" ? new Blob([message]).size > MAX_FRAME_BYTES : message.byteLength > MAX_FRAME_BYTES
@@ -240,7 +238,19 @@ export const fromWebSocket = (
    }
    const offer = (message: string | Uint8Array) => {
      if (rejectOversized(message)) return
-      Queue.offerUnsafe(messages, message)
+      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",
+          }),
+        ),
+      )
    }

    const onMessage = (event: MessageEvent) => {
@@ -231,7 +231,7 @@ export const toDefinitions = (tools: Tools): ReadonlyArray<ToolDefinitionClass>
  )

 const toJsonSchema = (schema: Schema.Top): JsonSchema.JsonSchema => {
-  const document = Schema.toJsonSchemaDocument(schema, { onExcessProperty: "error" })
+  const document = Schema.toJsonSchemaDocument(schema)
  if (Object.keys(document.definitions).length === 0) return document.schema
  return { ...document.schema, $defs: document.definitions }
 }
@@ -30,7 +30,7 @@ type LanguageModel = {
 declare const auth: Auth.Definition
 declare const optionalAuthModel: LanguageModelFactory<BaseOptions, "optional", LanguageModel>
 declare const requiredAuthModel: LanguageModelFactory<BaseOptions, "required", LanguageModel>
-const configApiKey = Config.Redacted("OPENAI_API_KEY")
+const configApiKey = Config.redacted("OPENAI_API_KEY")

 OpenAIChat.route.model({ id: "gpt-4.1-mini" })

@@ -11,78 +11,66 @@ import { sseEvents } from "../lib/sse.js"

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

-it.effect("decodes error frames verbatim in shared SSE and WebSocket decoding", () =>
+it.effect("normalizes flat errors 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]) {
-      for (const frame of [
-        { type: "error", sequence_number: 4, code: "server_shutting_down", message: "Shutting down", param: null },
+      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,
        { 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(frame))).toEqual(frame)
+        expect(yield* decode(JSON.stringify(unchanged))).toEqual(unchanged)
      }
    }
  }),
 )

-it.effect("reads bare WebSocket error envelopes as error events", () =>
+it.effect("continues to normalize untyped xAI WebSocket errors", () =>
  Effect.gen(function* () {
    const message = "gRPC error: Response with id=resp_missing not found"
-    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()
+    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,
+      })
    }
  }),
 )

-it.effect("extracts error details from every shape and falls back to the raw frame", () =>
+it.effect("normalizes string errors in shared SSE and WebSocket decoding", () =>
  Effect.gen(function* () {
-    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 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" } },
+      })
    }
-    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")
  }),
 )

@@ -19,13 +19,6 @@ 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) => ({
@@ -54,33 +47,13 @@ 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: () => {
-        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],
-        }
-      },
+      active: () => tabs.find((tab) => tab.title === store.session) ?? tabs[0],
      registration: () => registrations.get(store.session),
-      error: () => store.error ?? (store.loadErrors[store.session] ? "Request failed" : undefined),
+      error: () => undefined,
      suspended: () => false,
      close: () => undefined,
      open: () => 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)
-      },
+      command: () => undefined,
    }
    return (
      <>
@@ -91,32 +64,6 @@ 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" }}>
@@ -57,153 +57,3 @@ 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()
-})
@@ -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, 1800]) {
+    for (const width of [1520, 1280, 1600]) {
      await page.setViewportSize({ width, height: 900 })
      await expect(panel).toHaveAttribute("data-summary-resizing", "true")
      await page.clock.runFor(100)
@@ -84,7 +84,6 @@ 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", ""))
@@ -113,8 +112,7 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect(summary).toBeVisible()

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

    await page.emulateMedia({ reducedMotion: "reduce" })
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/app",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "description": "",
  "type": "module",
  "exports": {
@@ -65,14 +65,14 @@
  }

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

      &:dir(rtl) {
-        --session-summary-translate: 160px;
+        --session-summary-translate: max(0px, calc(820px - 50cqi));
      }
    }
  }
@@ -45,7 +45,7 @@ const Current = Persistence.struct({ session: SessionsSchema })

 export const ModelSelectionSchema = Persistence.migrate(
  Current,
-  Persistence.legacy({
+  Schema.Struct({
    session: Persistence.optional(Schema.Record(Schema.String, Schema.Unknown)),
    pick: Persistence.optional(Schema.Record(Schema.String, Schema.Unknown)),
  }).pipe(
@@ -906,10 +906,6 @@ 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",
@@ -32,7 +32,7 @@ describe("persistence schemas", () => {

  test("legacy migration observes missing fields before initial defaults are applied", () => {
    const current = Persistence.struct({ mode: Schema.Literals(["compact", "full"]), enabled: Schema.Boolean })
-    const stored = Persistence.legacy({
+    const stored = Schema.Struct({
      mode: Schema.optional(Schema.Unknown),
      expanded: Schema.optional(Schema.Boolean),
    }).pipe(
@@ -53,38 +53,6 @@ describe("persistence schemas", () => {
    expect(Schema.encodeSync(schema)(decode({ expanded: true }))).toEqual({ mode: "full", enabled: true })
  })

-  test("legacy read shapes carry unknown nested fields through to the current schema", () => {
-    const current = Persistence.struct({
-      general: Persistence.struct({
-        mode: Schema.Literals(["compact", "full"]),
-        theme: Schema.String,
-        nested: Persistence.struct({ keep: Schema.Boolean }),
-      }),
-      other: Persistence.struct({ flag: Schema.Boolean }),
-    })
-    const stored = Persistence.legacy({
-      general: Persistence.optional(Persistence.legacy({ expanded: Persistence.optional(Schema.Boolean) })),
-    }).pipe(
-      Schema.decode({
-        decode: SchemaGetter.transform((value) => {
-          const general = value.general
-          if (!general || general.expanded === undefined) return value
-          return { ...value, general: { ...general, mode: general.expanded ? "full" : "compact" } }
-        }),
-        encode: SchemaGetter.passthrough(),
-      }),
-    )
-    const schema = Persistence.withInitial(Persistence.migrate(current, stored), {
-      general: { mode: "compact", theme: "light", nested: { keep: false } },
-      other: { flag: false },
-    })
-    const decode = Schema.decodeUnknownSync(schema)
-    expect(decode({ general: { expanded: true, theme: "dark", nested: { keep: true } }, other: { flag: true } })).toEqual({
-      general: { mode: "full", theme: "dark", nested: { keep: true } },
-      other: { flag: true },
-    })
-  })
-
  test("initial merging preserves field codecs and replaces arrays rather than merging indexes", () => {
    const current = Persistence.struct({
      amount: Schema.NumberFromString.check(Schema.isFinite()),
@@ -23,11 +23,13 @@ export function withInitial<S extends Schema.ConstraintCodec<object, unknown>>(
  initial: NoInfer<S["Type"]>,
 ) {
  const schema = isMigrated(definition) ? definition.current : definition
-  const read = isMigrated(definition) ? SchemaParser.decodeUnknownResult(definition.read) : Result.succeed<unknown>
+  const read = isMigrated(definition)
+    ? SchemaParser.decodeUnknownResult(definition.read, { onExcessProperty: "preserve" })
+    : Result.succeed<unknown>
  const encode = Schema.encodeUnknownSync(schema)
  return Schema.Unknown.pipe(
    Schema.decode<Schema.Unknown>({
-      decode: SchemaGetter.transformEffect((value) =>
+      decode: SchemaGetter.transformOrFail((value) =>
        Effect.fromResult(Result.map(read(value), (stored) => merge(initial, recover(schema.ast, stored, initial)))),
      ),
      encode: SchemaGetter.transform((value) => encode(value)),
@@ -36,12 +38,6 @@ export function withInitial<S extends Schema.ConstraintCodec<object, unknown>>(
  )
 }

-// A legacy read shape declares only the fields it migrates. Decoding strips unknown keys, so every
-// struct level in a `migrate` read schema must stay open for the current fields it does not name.
-export function legacy<const Fields extends Schema.Struct.Fields>(fields: Fields) {
-  return Schema.StructWithRest(Schema.Struct(fields), [Schema.Record(Schema.String, Schema.Unknown)])
-}
-
 // Object-level codecs own their recovery. Plain structs can recover fields independently.
 function recover(ast: SchemaAST.AST, value: unknown, initial: unknown): unknown {
  if (value === undefined) return initial
@@ -53,7 +53,7 @@ const State = Persistence.struct({
 export function serverState(canonicalLocalServer: () => string | undefined = () => undefined) {
  return Persistence.migrate(
    State,
-    Persistence.legacy({ projects: Projects, lastProject: LastProject }).pipe(
+    Schema.Struct({ projects: Projects, lastProject: LastProject }).pipe(
      Schema.decode({
        decode: SchemaGetter.transform((value) => {
          const canonical = canonicalLocalServer()
@@ -20,18 +20,13 @@ 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
@@ -48,7 +43,7 @@ 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 || !address(),
+      disabled: !props.visible || !state(),
      onSelect: () => {
        const tab = state()
        if (tab) props.browser.command({ type: "reload", tabID: tab.id })
@@ -76,9 +71,7 @@ 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)
-    // 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)
+    const visible = props.visible && store.visible && !dialog.active && !covered(rect)
    // The cutout exposes the app backdrop outside the rounded Review card,
    // not the browser surface inside it.
    const color = getComputedStyle(
@@ -114,25 +107,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
    if (frame === undefined) frame = requestAnimationFrame(tick)
  }

-  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(() => !store.editing && setStore("address", address()))
  createEffect(
    on(registration, (current) => {
      // Session routes can change before this pane unmounts. Hide the registration
@@ -148,8 +123,6 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
        () => store.visible,
        () => props.visible,
        () => state()?.id,
-        empty,
-        failed,
        registration,
      ],
      () => {
@@ -184,7 +157,7 @@ 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-3 border-b border-v2-border-border-muted">
+      <div class="h-10 shrink-0 flex items-center gap-1 px-2 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")}>
@@ -220,7 +193,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
        >
          <IconButton
            {...button}
-            disabled={!state()?.loading && !address()}
+            disabled={!state()}
            aria-label={language.t(state()?.loading ? "prompt.action.stop" : "error.page.action.reload")}
            onClick={() => {
              const tab = state()
@@ -239,13 +212,8 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
          onSubmit={(event) => {
            event.preventDefault()
            const tab = state()
-            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()
+            if (tab && store.address.trim())
+              props.browser.command({ type: "navigate", tabID: tab.id, url: store.address })
          }}
        >
          <input
@@ -256,14 +224,8 @@ 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={(event) => {
-              setStore("editing", true)
-              event.currentTarget.select()
-            }}
-            onClick={(event) => event.currentTarget.select()}
-            onBlur={() =>
-              setStore({ editing: false, address: store.submitted ? store.address : address(), submitted: false })
-            }
+            onFocus={() => setStore("editing", true)}
+            onBlur={() => setStore({ editing: false, address: address() })}
            onInput={(event) => setStore("address", event.currentTarget.value)}
            onScroll={(event) => {
              if (addressDisplay) addressDisplay.scrollLeft = event.currentTarget.scrollLeft
@@ -281,27 +243,12 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
          </div>
        </form>
      </div>
-      <Show when={props.browser.error() && !failed()}>
+      <Show when={props.browser.error()}>
        <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")}
@@ -1,8 +1,6 @@
 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"
@@ -71,19 +69,9 @@ export function SortableTab(props: {
              placement="bottom"
              gutter={10}
            >
-              <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" />}
+              <Tabs.CloseButton
+                class="h-5 w-5"
+                onClick={() => props.onTabClose(props.tab)}
                aria-label={language.t("common.closeTab")}
              />
            </Tooltip>
@@ -188,9 +188,9 @@ function legacyTimelineActivity(value: boolean | "hidden" | "compact" | "full" |

 export const settingsPersistence = Persistence.migrate(
  settingsSchema,
-  Persistence.legacy({
+  Schema.Struct({
    general: Persistence.optional(
-      Persistence.legacy({
+      Schema.Struct({
        // Keep invalid explicit values distinct from absent values so legacy preferences cannot replace them.
        timelineDetail: Schema.optional(
          Schema.NullOr(
@@ -173,16 +173,16 @@ export const layoutSchema = Persistence.struct({

 export const layoutPersistence = Persistence.migrate(
  layoutSchema,
-  Persistence.legacy({
+  Schema.Struct({
    sidebar: Persistence.optional(
-      Persistence.legacy({
+      Schema.Struct({
        workspaces: Persistence.optional(Schema.Union([Schema.Boolean, Schema.Record(Schema.String, Schema.Boolean)])),
        workspacesDefault: Persistence.optional(Schema.Boolean),
      }),
    ),
-    review: Persistence.optional(Persistence.legacy({ panelOpened: Persistence.optional(Schema.Boolean) })),
+    review: Persistence.optional(Schema.Struct({ panelOpened: Persistence.optional(Schema.Boolean) })),
    fileTree: Persistence.optional(
-      Persistence.legacy({
+      Schema.Struct({
        opened: Persistence.optional(Schema.Boolean),
        width: Persistence.optional(Schema.Finite),
        tab: Persistence.optional(Schema.Literals(["changes", "all"])),
@@ -9,8 +9,7 @@
  justify-content: center;
 }

-[data-titlebar-tab],
-[data-titlebar-tab-action] {
+[data-titlebar-tab] {
  --tab-base: var(--v2-background-bg-deep);
  --tab-overlay: transparent;
  background: linear-gradient(var(--tab-overlay), var(--tab-overlay)), var(--tab-base);
@@ -69,14 +68,6 @@
  --tab-overlay: var(--v2-overlay-simple-overlay-pressed);
 }

-[data-titlebar-tab-action]:is(:hover, :focus-visible) {
-  --tab-overlay: var(--v2-overlay-simple-overlay-hover);
-}
-
-[data-titlebar-tab-action]:is(:active, [data-state="pressed"]) {
-  --tab-overlay: var(--v2-overlay-simple-overlay-pressed);
-}
-
 [data-titlebar-tab]:is(:hover, [data-state="pressed"]) [data-slot="tab-close"] {
  background: linear-gradient(var(--tab-overlay), var(--tab-overlay)), var(--tab-base);
 }
@@ -351,10 +351,9 @@ export function Titlebar(props: {
              >
                <button
                  type="button"
-                  data-titlebar-tab-action
                  data-action="vertical-tabs-home"
                  data-state={layout.route().type === "home" ? "pressed" : undefined}
-                  class="group mb-1 flex h-7 w-full shrink-0 items-center gap-1.5 rounded-[6px] ps-1.5 pe-2 text-[13px] leading-4 text-v2-text-text-faint hover:text-v2-text-text-base data-[state=pressed]:text-v2-text-text-base"
+                  class="group mb-1 flex h-7 w-full shrink-0 items-center gap-1.5 rounded-[6px] ps-1.5 pe-2 text-[13px] leading-4 text-v2-text-text-faint hover:bg-v2-background-bg-layer-02 hover:text-v2-text-text-base data-[state=pressed]:bg-v2-background-bg-layer-02 data-[state=pressed]:text-v2-text-text-base"
                  onClick={toggleHome}
                  aria-label={language.t("home.title")}
                  aria-pressed={layout.route().type === "home"}
@@ -651,9 +650,8 @@ export function Titlebar(props: {
                            {homeButton(true)}
                            <button
                              type="button"
-                              data-titlebar-tab-action
                              data-action="vertical-tabs-new-session"
-                              class="group flex h-7 w-full shrink-0 items-center gap-1.5 rounded-[6px] ps-1.5 pe-2 text-[13px] leading-4 text-v2-text-text-faint hover:text-v2-text-text-base"
+                              class="group flex h-7 w-full shrink-0 items-center gap-1.5 rounded-[6px] ps-1.5 pe-2 text-[13px] leading-4 text-v2-text-text-faint hover:bg-v2-background-bg-layer-02 hover:text-v2-text-text-base"
                              onClick={openNewTab}
                              aria-label={language.t("command.session.new")}
                            >
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/cli",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "type": "module",
  "license": "MIT",
  "bin": {
@@ -3,8 +3,8 @@ import { Schema } from "effect"
 import { Spec } from "../framework/spec"
 import { Updater } from "../services/updater"

-export const PrintLogs = GlobalFlag.Setting("print-logs")({
-  flag: Flag.Boolean("print-logs").pipe(
+export const PrintLogs = GlobalFlag.setting("print-logs")({
+  flag: Flag.boolean("print-logs").pipe(
    Flag.withDescription("Print logs to stderr (server logs require --standalone)"),
    Flag.withDefault(false),
  ),
@@ -13,23 +13,23 @@ export const PrintLogs = GlobalFlag.Setting("print-logs")({
 declare const OPENCODE_CLI_NAME: string | undefined

 const ServerParams = {
-  standalone: Flag.Boolean("standalone").pipe(
+  standalone: Flag.boolean("standalone").pipe(
    Flag.withDescription("Run with a private server instead of the background service"),
    Flag.withDefault(false),
  ),
-  server: Flag.String("server").pipe(
+  server: Flag.string("server").pipe(
    Flag.withDescription("Connect to a server URL instead of the background service"),
    Flag.optional,
  ),
 }

 const PermissionParams = {
-  auto: Flag.Boolean("auto").pipe(
+  auto: Flag.boolean("auto").pipe(
    Flag.withDescription("Auto-approve permissions that are not explicitly denied"),
    Flag.withDefault(false),
  ),
-  yolo: Flag.Boolean("yolo").pipe(Flag.withDefault(false), Flag.withHidden),
-  dangerouslySkipPermissions: Flag.Boolean("dangerously-skip-permissions").pipe(
+  yolo: Flag.boolean("yolo").pipe(Flag.withDefault(false), Flag.withHidden),
+  dangerouslySkipPermissions: Flag.boolean("dangerously-skip-permissions").pipe(
    Flag.withDefault(false),
    Flag.withHidden,
  ),
@@ -40,32 +40,32 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
  params: {
    ...ServerParams,
    ...PermissionParams,
-    directory: Argument.String("directory").pipe(
+    directory: Argument.string("directory").pipe(
      Argument.withDescription("Directory to start OpenCode in"),
      Argument.optional,
    ),
-    continue: Flag.Boolean("continue").pipe(
+    continue: Flag.boolean("continue").pipe(
      Flag.withAlias("c"),
      Flag.withDescription("Continue the last session"),
      Flag.withDefault(false),
    ),
-    session: Flag.String("session").pipe(
+    session: Flag.string("session").pipe(
      Flag.withAlias("s"),
      Flag.withDescription("Session ID to continue"),
      Flag.optional,
    ),
-    prompt: Flag.String("prompt").pipe(Flag.withDescription("Prompt to use"), Flag.optional),
+    prompt: Flag.string("prompt").pipe(Flag.withDescription("Prompt to use"), Flag.optional),
  },
  commands: [
    Spec.make("upgrade", {
      description: "Upgrade OpenCode to the latest or a specific version",
      aliases: ["update"],
      params: {
-        target: Argument.String("target").pipe(
+        target: Argument.string("target").pipe(
          Argument.withDescription("Version to upgrade to (with or without a leading v)"),
          Argument.optional,
        ),
-        method: Flag.Literals("method", Updater.methods).pipe(
+        method: Flag.choice("method", Updater.methods).pipe(
          Flag.withAlias("m"),
          Flag.withDescription("Installation method to use"),
          Flag.optional,
@@ -75,21 +75,21 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
    Spec.make("uninstall", {
      description: "Uninstall OpenCode and remove all related files",
      params: {
-        keepConfig: Flag.Boolean("keep-config").pipe(
+        keepConfig: Flag.boolean("keep-config").pipe(
          Flag.withAlias("c"),
          Flag.withDescription("Keep configuration files"),
          Flag.withDefault(false),
        ),
-        keepData: Flag.Boolean("keep-data").pipe(
+        keepData: Flag.boolean("keep-data").pipe(
          Flag.withAlias("d"),
          Flag.withDescription("Keep session data and snapshots"),
          Flag.withDefault(false),
        ),
-        dryRun: Flag.Boolean("dry-run").pipe(
+        dryRun: Flag.boolean("dry-run").pipe(
          Flag.withDescription("Show what would be removed without removing"),
          Flag.withDefault(false),
        ),
-        force: Flag.Boolean("force").pipe(
+        force: Flag.boolean("force").pipe(
          Flag.withAlias("f"),
          Flag.withDescription("Skip confirmation prompts"),
          Flag.withDefault(false),
@@ -101,17 +101,17 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
      description: "Make a request to the running server",
      params: {
        ...ServerParams,
-        request: Argument.String("operation | method path").pipe(
+        request: Argument.string("operation | method path").pipe(
          Argument.withDescription("OpenAPI operation ID, or an HTTP method followed by a path"),
          Argument.variadic({ min: 1, max: 2 }),
        ),
-        data: Flag.String("data").pipe(Flag.withAlias("d"), Flag.withDescription("Request body"), Flag.optional),
-        header: Flag.String("header").pipe(
+        data: Flag.string("data").pipe(Flag.withAlias("d"), Flag.withDescription("Request body"), Flag.optional),
+        header: Flag.string("header").pipe(
          Flag.withAlias("H"),
          Flag.withDescription("Request header in name:value form"),
          Flag.atMost(100),
        ),
-        param: Flag.KeyValuePair("param").pipe(Flag.withDescription("OpenAPI path or query parameter"), Flag.optional),
+        param: Flag.keyValuePair("param").pipe(Flag.withDescription("OpenAPI path or query parameter"), Flag.optional),
      },
    }),
    Spec.make("debug", {
@@ -122,7 +122,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("paths", {
          description: "Show global paths (data, config, cache, state)",
          params: {
-            name: Argument.Literals("name", [
+            name: Argument.choice("name", [
              "db",
              "home",
              "data",
@@ -134,9 +134,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
              "log",
              "repos",
            ]).pipe(
-              Argument.withDescription(
-                "Print only one path: db, home, data, config, cache, state, tmp, bin, log, repos",
-              ),
+              Argument.withDescription("Print only one path: db, home, data, config, cache, state, tmp, bin, log, repos"),
              Argument.optional,
            ),
          },
@@ -150,7 +148,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "list providers and credentials",
          params: {
            ...ServerParams,
-            format: Flag.Literals("format", ["default", "json"]).pipe(
+            format: Flag.choice("format", ["default", "json"]).pipe(
              Flag.withDescription("Output format"),
              Flag.withDefault("default"),
            ),
@@ -160,12 +158,12 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "log in to a provider",
          params: {
            ...ServerParams,
-            target: Argument.String("target").pipe(
+            target: Argument.string("target").pipe(
              Argument.withDescription("Integration ID, name, or well-known provider URL"),
              Argument.optional,
            ),
-            method: Flag.String("method").pipe(Flag.withDescription("Authentication method ID"), Flag.optional),
-            answer: Flag.String("answer").pipe(
+            method: Flag.string("method").pipe(Flag.withDescription("Authentication method ID"), Flag.optional),
+            answer: Flag.string("answer").pipe(
              Flag.withDescription("Provider form answer (key=value; repeat for multiple fields)"),
              Flag.atMost(100),
            ),
@@ -175,11 +173,11 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "log out of a saved account",
          params: {
            ...ServerParams,
-            target: Argument.String("target").pipe(
+            target: Argument.string("target").pipe(
              Argument.withDescription("Integration ID or name"),
              Argument.optional,
            ),
-            credential: Argument.String("credential").pipe(
+            credential: Argument.string("credential").pipe(
              Argument.withDescription("Credential ID or label (opens an account picker when omitted)"),
              Argument.optional,
            ),
@@ -189,11 +187,11 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "switch the active account for an integration",
          params: {
            ...ServerParams,
-            target: Argument.String("target").pipe(
+            target: Argument.string("target").pipe(
              Argument.withDescription("Integration ID or name"),
              Argument.optional,
            ),
-            credential: Argument.String("credential").pipe(
+            credential: Argument.string("credential").pipe(
              Argument.withDescription("Credential ID or label (opens an account picker when omitted)"),
              Argument.optional,
            ),
@@ -208,21 +206,21 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("add", {
          description: "Add an MCP server to your configuration",
          params: {
-            name: Argument.String("name").pipe(Argument.withDescription("Name of the MCP server")),
-            command: Argument.String("command").pipe(
+            name: Argument.string("name").pipe(Argument.withDescription("Name of the MCP server")),
+            command: Argument.string("command").pipe(
              Argument.withDescription("Command and arguments for a local server, passed after --"),
              Argument.variadic({ min: 0 }),
            ),
-            url: Flag.String("url").pipe(Flag.withDescription("URL for a remote MCP server"), Flag.optional),
-            header: Flag.KeyValuePair("header").pipe(
+            url: Flag.string("url").pipe(Flag.withDescription("URL for a remote MCP server"), Flag.optional),
+            header: Flag.keyValuePair("header").pipe(
              Flag.withDescription("HTTP header for a remote server, as name=value"),
              Flag.optional,
            ),
-            env: Flag.KeyValuePair("env").pipe(
+            env: Flag.keyValuePair("env").pipe(
              Flag.withDescription("Environment variable for a local server, as name=value"),
              Flag.optional,
            ),
-            global: Flag.Boolean("global").pipe(
+            global: Flag.boolean("global").pipe(
              Flag.withDescription("Write to the global config instead of the project config"),
              Flag.withDefault(false),
            ),
@@ -230,11 +228,11 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        }),
        Spec.make("auth", {
          description: "Authenticate with an OAuth-capable remote MCP server",
-          params: { name: Argument.String("name").pipe(Argument.withDescription("Name of the MCP server")) },
+          params: { name: Argument.string("name").pipe(Argument.withDescription("Name of the MCP server")) },
        }),
        Spec.make("logout", {
          description: "Remove stored OAuth credentials for an MCP server",
-          params: { name: Argument.String("name").pipe(Argument.withDescription("Name of the MCP server")) },
+          params: { name: Argument.string("name").pipe(Argument.withDescription("Name of the MCP server")) },
        }),
      ],
    }),
@@ -244,7 +242,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("list", {
          description: "List plugins",
          params: {
-            builtin: Flag.Boolean("builtin").pipe(
+            builtin: Flag.boolean("builtin").pipe(
              Flag.withDescription("Include built-in server plugins"),
              Flag.withDefault(false),
            ),
@@ -253,13 +251,13 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("add", {
          description: "Install a plugin and add it to the global configuration",
          params: {
-            package: Argument.String("package").pipe(Argument.withDescription("npm registry or Git package specifier")),
+            package: Argument.string("package").pipe(Argument.withDescription("npm registry or Git package specifier")),
          },
        }),
        Spec.make("check", {
          description: "Check package plugins for updates",
          params: {
-            target: Argument.String("target").pipe(
+            target: Argument.string("target").pipe(
              Argument.withDescription("Configured package target"),
              Argument.optional,
            ),
@@ -268,7 +266,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("update", {
          description: "Update package plugins",
          params: {
-            target: Argument.String("target").pipe(
+            target: Argument.string("target").pipe(
              Argument.withDescription("Configured package target; omit to update all outdated plugins"),
              Argument.optional,
            ),
@@ -277,7 +275,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("remove", {
          description: "Remove a plugin from global configuration",
          params: {
-            package: Argument.String("package").pipe(Argument.withDescription("configured package specifier")),
+            package: Argument.string("package").pipe(Argument.withDescription("configured package specifier")),
          },
        }),
      ],
@@ -290,108 +288,108 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
      description: "Show shareable usage statistics",
      params: {
        ...ServerParams,
-        days: Flag.Int("days").pipe(
+        days: Flag.integer("days").pipe(
          Flag.withSchema(Schema.Int.check(Schema.isGreaterThanOrEqualTo(0))),
          Flag.withDescription("Show the last N days; 0 means today"),
          Flag.optional,
        ),
-        year: Flag.Int("year").pipe(
+        year: Flag.integer("year").pipe(
          Flag.withSchema(Schema.Int.check(Schema.isBetween({ minimum: 1970, maximum: 9_999 }))),
          Flag.withDescription("Show a calendar year"),
          Flag.optional,
        ),
-        all: Flag.Boolean("all").pipe(Flag.withDescription("Show lifetime statistics"), Flag.withDefault(false)),
-        project: Flag.String("project").pipe(
+        all: Flag.boolean("all").pipe(Flag.withDescription("Show lifetime statistics"), Flag.withDefault(false)),
+        project: Flag.string("project").pipe(
          Flag.withDescription('Filter by project ID, or use "." for the current project'),
          Flag.optional,
        ),
-        models: Flag.Boolean("models").pipe(Flag.withDescription("Show model usage"), Flag.withDefault(false)),
-        tools: Flag.Boolean("tools").pipe(Flag.withDescription("Show tool reliability"), Flag.withDefault(false)),
-        cost: Flag.Boolean("cost").pipe(Flag.withDescription("Show cost and token details"), Flag.withDefault(false)),
-        full: Flag.Boolean("full").pipe(Flag.withDescription("Show every detailed section"), Flag.withDefault(false)),
-        limit: Flag.Int("limit").pipe(
+        models: Flag.boolean("models").pipe(Flag.withDescription("Show model usage"), Flag.withDefault(false)),
+        tools: Flag.boolean("tools").pipe(Flag.withDescription("Show tool reliability"), Flag.withDefault(false)),
+        cost: Flag.boolean("cost").pipe(Flag.withDescription("Show cost and token details"), Flag.withDefault(false)),
+        full: Flag.boolean("full").pipe(Flag.withDescription("Show every detailed section"), Flag.withDefault(false)),
+        limit: Flag.integer("limit").pipe(
          Flag.withSchema(Schema.Int.check(Schema.isGreaterThanOrEqualTo(1))),
          Flag.withDescription("Number of rows in detailed sections"),
          Flag.withDefault(5),
        ),
-        json: Flag.Boolean("json").pipe(Flag.withDescription("Output statistics as JSON"), Flag.withDefault(false)),
+        json: Flag.boolean("json").pipe(Flag.withDescription("Output statistics as JSON"), Flag.withDefault(false)),
      },
    }),
    Spec.make("mini", {
      description: "Start the minimal interactive interface",
      params: {
        ...ServerParams,
-        continue: Flag.Boolean("continue").pipe(
+        continue: Flag.boolean("continue").pipe(
          Flag.withAlias("c"),
          Flag.withDescription("Continue the last session"),
          Flag.withDefault(false),
        ),
-        session: Flag.String("session").pipe(
+        session: Flag.string("session").pipe(
          Flag.withAlias("s"),
          Flag.withDescription("Session ID to continue"),
          Flag.optional,
        ),
-        fork: Flag.Boolean("fork").pipe(
+        fork: Flag.boolean("fork").pipe(
          Flag.withDescription("Fork the session when continuing"),
          Flag.withDefault(false),
        ),
-        replay: Flag.Boolean("replay").pipe(
+        replay: Flag.boolean("replay").pipe(
          Flag.withDescription("Restore session history on resume and resize (disable with --no-replay)"),
          Flag.optional,
        ),
-        replayLimit: Flag.Int("replay-limit").pipe(
+        replayLimit: Flag.integer("replay-limit").pipe(
          Flag.withDescription("Limit replay to the newest N messages (default: 200)"),
          Flag.optional,
        ),
-        model: Flag.String("model").pipe(
+        model: Flag.string("model").pipe(
          Flag.withAlias("m"),
          Flag.withDescription("Model to use in the format provider/model"),
          Flag.optional,
        ),
-        agent: Flag.String("agent").pipe(Flag.withDescription("Agent to use"), Flag.optional),
-        prompt: Flag.String("prompt").pipe(Flag.withDescription("Prompt to use"), Flag.optional),
-        demo: Flag.Boolean("demo").pipe(Flag.withDefault(false), Flag.withHidden),
+        agent: Flag.string("agent").pipe(Flag.withDescription("Agent to use"), Flag.optional),
+        prompt: Flag.string("prompt").pipe(Flag.withDescription("Prompt to use"), Flag.optional),
+        demo: Flag.boolean("demo").pipe(Flag.withDefault(false), Flag.withHidden),
      },
    }),
    Spec.make("run", {
      description: "Run OpenCode with a message",
      params: {
        ...ServerParams,
-        message: Argument.String("message").pipe(
+        message: Argument.string("message").pipe(
          Argument.withDescription("Message to send"),
          Argument.variadic({ min: 0 }),
        ),
-        continue: Flag.Boolean("continue").pipe(
+        continue: Flag.boolean("continue").pipe(
          Flag.withAlias("c"),
          Flag.withDescription("Continue the last session"),
          Flag.withDefault(false),
        ),
-        session: Flag.String("session").pipe(
+        session: Flag.string("session").pipe(
          Flag.withAlias("s"),
          Flag.withDescription("Session ID to continue"),
          Flag.optional,
        ),
-        fork: Flag.Boolean("fork").pipe(
+        fork: Flag.boolean("fork").pipe(
          Flag.withDescription("Fork the session before continuing"),
          Flag.withDefault(false),
        ),
-        model: Flag.String("model").pipe(
+        model: Flag.string("model").pipe(
          Flag.withAlias("m"),
          Flag.withDescription("Model to use in the format provider/model#variant"),
          Flag.optional,
        ),
-        agent: Flag.String("agent").pipe(Flag.withDescription("Agent to use"), Flag.optional),
-        format: Flag.Literals("format", ["default", "json"]).pipe(
+        agent: Flag.string("agent").pipe(Flag.withDescription("Agent to use"), Flag.optional),
+        format: Flag.choice("format", ["default", "json"]).pipe(
          Flag.withDescription("Output format"),
          Flag.withDefault("default"),
        ),
-        file: Flag.String("file").pipe(
+        file: Flag.string("file").pipe(
          Flag.withAlias("f"),
          Flag.withDescription("File to attach to the message"),
          Flag.atMost(100),
        ),
-        title: Flag.String("title").pipe(Flag.withDescription("Session title"), Flag.optional),
-        thinking: Flag.Boolean("thinking").pipe(Flag.withDescription("Show thinking blocks"), Flag.withDefault(false)),
+        title: Flag.string("title").pipe(Flag.withDescription("Session title"), Flag.optional),
+        thinking: Flag.boolean("thinking").pipe(Flag.withDescription("Show thinking blocks"), Flag.withDefault(false)),
        ...PermissionParams,
      },
    }),
@@ -402,13 +400,13 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "List top-level sessions in the current project, newest first",
          params: {
            ...ServerParams,
-            maxCount: Flag.Int("max-count").pipe(
+            maxCount: Flag.integer("max-count").pipe(
              Flag.withAlias("n"),
              Flag.withSchema(Schema.Int.check(Schema.isGreaterThanOrEqualTo(1))),
              Flag.withDescription("Limit to N most recent sessions (default: 100)"),
              Flag.optional,
            ),
-            format: Flag.Literals("format", ["table", "json"]).pipe(
+            format: Flag.choice("format", ["table", "json"]).pipe(
              Flag.withDescription("Output format"),
              Flag.withDefault("table"),
            ),
@@ -418,18 +416,18 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "Delete a session and its child sessions",
          params: {
            ...ServerParams,
-            sessionID: Argument.String("sessionID").pipe(Argument.withDescription("Session ID to delete")),
+            sessionID: Argument.string("sessionID").pipe(Argument.withDescription("Session ID to delete")),
          },
        }),
        Spec.make("export", {
          description: "Export session data as JSON",
          params: {
            ...ServerParams,
-            session: Argument.String("session").pipe(
+            session: Argument.string("session").pipe(
              Argument.withDescription("Session ID to export"),
              Argument.optional,
            ),
-            sanitize: Flag.Boolean("sanitize").pipe(
+            sanitize: Flag.boolean("sanitize").pipe(
              Flag.withDescription("Redact sensitive transcript and file data"),
              Flag.withDefault(false),
            ),
@@ -439,8 +437,8 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
          description: "Import session data from a JSON file or URL",
          params: {
            ...ServerParams,
-            file: Argument.String("file").pipe(Argument.withDescription("JSON file or URL to import")),
-            directory: Flag.String("directory").pipe(
+            file: Argument.string("file").pipe(Argument.withDescription("JSON file or URL to import")),
+            directory: Flag.string("directory").pipe(
              Flag.withDescription("Directory in which to import the session"),
              Flag.optional,
            ),
@@ -458,8 +456,8 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("get", {
          description: "Get service configuration",
          params: {
-            key: Argument.String("key").pipe(Argument.withDescription("Service setting or env"), Argument.optional),
-            name: Argument.String("name").pipe(
+            key: Argument.string("key").pipe(Argument.withDescription("Service setting or env"), Argument.optional),
+            name: Argument.string("name").pipe(
              Argument.withDescription("Environment variable name"),
              Argument.optional,
            ),
@@ -468,11 +466,11 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("set", {
          description: "Set service configuration",
          params: {
-            key: Argument.String("key").pipe(Argument.withDescription("Service setting or env")),
-            value: Argument.String("value").pipe(
+            key: Argument.string("key").pipe(Argument.withDescription("Service setting or env")),
+            value: Argument.string("value").pipe(
              Argument.withDescription("Setting value or environment variable name"),
            ),
-            nestedValue: Argument.String("env-value").pipe(
+            nestedValue: Argument.string("env-value").pipe(
              Argument.withDescription("Environment variable value"),
              Argument.optional,
            ),
@@ -481,8 +479,8 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
        Spec.make("unset", {
          description: "Unset service configuration",
          params: {
-            key: Argument.String("key").pipe(Argument.withDescription("Service setting or env")),
-            name: Argument.String("name").pipe(
+            key: Argument.string("key").pipe(Argument.withDescription("Service setting or env")),
+            name: Argument.string("name").pipe(
              Argument.withDescription("Environment variable name"),
              Argument.optional,
            ),
@@ -499,7 +497,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
    Spec.make("pair", {
      description: "Show server pairing information",
      params: {
-        url: Flag.String("url").pipe(
+        url: Flag.string("url").pipe(
          Flag.withDescription("Advertise an external HTTP(S) server URL in the pairing QR code"),
          Flag.mapTryCatch(
            (value) => {
@@ -517,15 +515,15 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
    Spec.make("serve", {
      description: "Start the v2 API and web server",
      params: {
-        hostname: Flag.String("hostname").pipe(Flag.optional),
-        port: Flag.Int("port").pipe(Flag.optional),
-        cors: Flag.String("cors").pipe(
+        hostname: Flag.string("hostname").pipe(Flag.optional),
+        port: Flag.integer("port").pipe(Flag.optional),
+        cors: Flag.string("cors").pipe(
          Flag.withSchema(Schema.NonEmptyString),
          Flag.withDescription("Additional allowed CORS origin (repeat for multiple origins)"),
          Flag.atLeast(0),
        ),
-        service: Flag.Boolean("service").pipe(Flag.withDefault(false)),
-        stdio: Flag.Boolean("stdio").pipe(Flag.withDefault(false)),
+        service: Flag.boolean("service").pipe(Flag.withDefault(false)),
+        stdio: Flag.boolean("stdio").pipe(Flag.withDefault(false)),
      },
    }),
  ],
@@ -7,8 +7,8 @@ import { Config } from "effect"
 // The opencode server password: sent by clients connecting to an explicit
 // --server, and adopted by a manually run or standalone server. The legacy
 // name is still honored.
-export const password = Config.Redacted("OPENCODE_PASSWORD").pipe(
-  Config.orElse(() => Config.Redacted("OPENCODE_SERVER_PASSWORD")),
+export const password = Config.redacted("OPENCODE_PASSWORD").pipe(
+  Config.orElse(() => Config.redacted("OPENCODE_SERVER_PASSWORD")),
  Config.withDefault(undefined),
 )

@@ -1,8 +1,7 @@
 #!/usr/bin/env bun

 import { NodeRuntime, NodeServices } from "@effect/platform-node"
-import { Cause, Effect } from "effect"
-import { getErrorReported } from "effect/Runtime"
+import { Effect } from "effect"
 import { Commands } from "./commands/commands"
 import { Runtime } from "./framework/runtime"
 import { Observability } from "@opencode/util/observability"
@@ -131,15 +130,5 @@ Effect.gen(function* () {
  Effect.provide(NodeServices.layer),
  Effect.scoped,
  Effect.tap(() => Effect.sync(() => process.exit(process.exitCode ?? 0))),
-  // runMain's default reporter logs the fatal cause to stdout. Write it to stderr instead: the
-  // desktop and `Service.ensure` only capture stderr from `serve --service`, so this is the only
-  // channel through which a startup failure's reason reaches the user.
-  Effect.tapCause((cause) =>
-    Effect.sync(() => {
-      if (Cause.hasInterruptsOnly(cause)) return
-      if (!getErrorReported(Cause.squash(cause))) return
-      process.stderr.write(Cause.pretty(cause) + "\n")
-    }),
-  ),
-  NodeRuntime.runMain({ disableErrorReporting: true }),
+  NodeRuntime.runMain,
 )
@@ -4,7 +4,6 @@ import { Service, type Info } from "@opencode/client/effect/service"
 import path from "node:path"
 import { Effect, FileSystem, Schedule, Schema } from "effect"
 import { HttpServer } from "effect/unstable/http"
-import { NetAddress } from "effect/unstable/net"
 import { OPENCODE_VERSION } from "../version"

 const infoJson = Schema.fromJsonString(Service.Info)
@@ -12,7 +11,7 @@ const encodeInfo = Schema.encodeEffect(infoJson)
 const decodeInfo = Schema.decodeUnknownEffect(infoJson)

 export const register = Effect.fnUntraced(function* (options: {
-  readonly address: NetAddress.SocketAddress
+  readonly address: HttpServer.Address
  readonly password: string
  readonly id: string
  readonly file: string
@@ -1,6 +1,5 @@
 import { NodeSocket } from "@effect/platform-node"
 import { Effect, Schema, Stdio, Stream } from "effect"
-import { Socket } from "effect/unstable/socket"

 const Response = Schema.fromJsonString(Schema.Struct({ value: Schema.NullOr(Schema.String) }))
 const Port = Schema.NumberFromString.check(Schema.isInt(), Schema.isGreaterThan(0), Schema.isLessThanOrEqualTo(65535))
@@ -11,15 +10,16 @@ export const askpass = Effect.gen(function* () {
  const port = yield* Schema.decodeUnknownEffect(Port)(process.env.OPENCODE_SSH_ASKPASS_PORT)
  const stdio = yield* Stdio.Stdio
  const socket = yield* NodeSocket.makeNet({ host: "127.0.0.1", port })
-  const writer = yield* socket.writer
+  const write = yield* socket.writer
  const response = { text: "" }
  yield* Effect.all(
    [
-      Effect.gen(function* () {
-        const pull = yield* Socket.readerString(socket)
-        while (true) response.text += (yield* pull).join("")
-      }).pipe(Effect.catchReason("SocketError", "SocketCloseError", () => Effect.void)),
-      writer.write(
+      socket.runString((text) =>
+        Effect.sync(() => {
+          response.text += text
+        }),
+      ),
+      write(
        JSON.stringify({
          token: process.env.OPENCODE_SSH_ASKPASS_TOKEN,
          text: process.argv.slice(2).join(" "),
@@ -4,7 +4,6 @@ import { Global } from "@opencode/util/global"
 import { OPENCODE_VERSION } from "../src/version"
 import { expect, test } from "bun:test"
 import { Effect, Schema } from "effect"
-import { NetAddress } from "effect/unstable/net"
 import fs from "node:fs/promises"
 import os from "node:os"
 import path from "node:path"
@@ -502,7 +501,7 @@ test("service registration replaces a stale owner with the bound address", async
  try {
    const cleanup = await Effect.runPromise(
      ServiceRegistration.register({
-        address: NetAddress.inetAddressFromIpStringUnsafe("127.0.0.1", 4321),
+        address: { _tag: "TcpAddress", hostname: "127.0.0.1", port: 4321 },
        password: "secret",
        id: "owner",
        file: registration,
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/client",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "type": "module",
  "license": "MIT",
  "repository": {
@@ -37,7 +37,7 @@
    "@opencode/protocol": "workspace:*"
  },
  "peerDependencies": {
-    "effect": "4.0.0-rc.115",
+    "effect": "4.0.0-rc.112",
    "solid-js": ">=1.9.0"
  },
  "peerDependenciesMeta": {
@@ -241,6 +241,7 @@ export type SessionSwitchModelOperation<E = never> = (
 export type SessionUpdateInput = {
  readonly sessionID: Session.ID
  readonly title?: string | undefined
+  readonly metadata?: Session.Metadata | undefined
  readonly permissions?: Permission.Ruleset | undefined
 }
 export type SessionUpdateOutput = void
@@ -516,6 +517,20 @@ export type SessionLogOutput =
            | undefined
          readonly data: { readonly sessionID: Session.ID; readonly title: string }
        }
+      | {
+          readonly id: Event.ID
+          readonly created: number
+          readonly metadata?: { readonly [x: string]: unknown } | undefined
+          readonly type: "session.metadata.updated"
+          readonly durable: { readonly aggregateID: string; readonly seq: Event.Seq; readonly version: Event.Version }
+          readonly location?:
+            | {
+                readonly directory: AbsolutePath
+                readonly workspaceID?: (string & Brand.Brand<"Workspace.ID">) | undefined
+              }
+            | undefined
+          readonly data: { readonly sessionID: Session.ID; readonly metadata: Session.Metadata }
+        }
      | {
          readonly id: Event.ID
          readonly created: number
@@ -453,7 +453,7 @@ const EndpointSessionUpdate = (raw: RawClient["server.session"]) => (input: Sess
  preserveEffect<SessionUpdateOutput>()(
    raw["session.update"]({
      params: { sessionID: input["sessionID"] },
-      payload: { title: input["title"], permissions: input["permissions"] },
+      payload: { title: input["title"], metadata: input["metadata"], permissions: input["permissions"] },
    }).pipe(Effect.mapError(mapClientError)),
  )

@@ -662,7 +662,7 @@ export function make(options: ClientOptions) {
          {
            method: "PATCH",
            path: `/api/session/${encodeURIComponent(input.sessionID)}`,
-            body: { title: input["title"], permissions: input["permissions"] },
+            body: { title: input["title"], metadata: input["metadata"], permissions: input["permissions"] },
            successStatus: 204,
            declaredStatuses: [400, 401, 404],
            empty: true,
@@ -1221,6 +1221,16 @@ export type SessionMoved = {

 export type SessionInboxMovePayload1 = { location: LocationRef; projectID: string; subpath?: string }

+export type SessionMetadataUpdated = {
+  id: string
+  created: number
+  metadata?: { [x: string]: any }
+  type: "session.metadata.updated"
+  durable: { aggregateID: string; seq: number; version: 1 }
+  location?: LocationRef
+  data: { sessionID: string; metadata: SessionMetadata }
+}
+
 export type SessionShellStarted = {
  id: string
  created: number
@@ -2308,6 +2318,7 @@ export type SessionEventDurable =
  | SessionModelSelected
  | SessionMoved
  | SessionRenamed
+  | SessionMetadataUpdated
  | SessionPermissions
  | SessionViewed
  | SessionDeleted
@@ -2370,6 +2381,7 @@ export type V2Event =
  | SessionModelSelected
  | SessionMoved
  | SessionRenamed
+  | SessionMetadataUpdated
  | SessionPermissions
  | SessionViewed
  | SessionUsageUpdated
@@ -3946,12 +3958,21 @@ export type SessionUpdateInput = {
  readonly sessionID: { readonly sessionID: string }["sessionID"]
  readonly title?: {
    readonly title?: string | undefined
+    readonly metadata?: { readonly [x: string]: JsonValue } | undefined
    readonly permissions?:
      | ReadonlyArray<{ readonly action: string; readonly resource: string; readonly effect: "allow" | "deny" | "ask" }>
      | undefined
  }["title"]
+  readonly metadata?: {
+    readonly title?: string | undefined
+    readonly metadata?: { readonly [x: string]: JsonValue } | undefined
+    readonly permissions?:
+      | ReadonlyArray<{ readonly action: string; readonly resource: string; readonly effect: "allow" | "deny" | "ask" }>
+      | undefined
+  }["metadata"]
  readonly permissions?: {
    readonly title?: string | undefined
+    readonly metadata?: { readonly [x: string]: JsonValue } | undefined
    readonly permissions?:
      | ReadonlyArray<{ readonly action: string; readonly resource: string; readonly effect: "allow" | "deny" | "ask" }>
      | undefined
@@ -24,7 +24,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      and Map, RegExp, and generators serialize as `{}`. A bare `undefined` result is `null`.
      Tool results come back the way `JSON.parse(JSON.stringify(result))` would. The table, where a value cannot
      be JSON but what the program meant is clear: a promise is awaited (a rejection fails the program), a Set
-      crosses as an array, a URLSearchParams as its query string, an Error as `{ name, message, ...own enumerable }`, a
+      crosses as an array, a URLSearchParams as its query string, an Error as `{ name, message, ...own }`, a
      Uint8Array is rejected with a hint to encode as text, and own `__proto__` keys are dropped so merging tool
      inputs or results cannot replace a prototype. In-program `JSON.stringify` keeps JS behavior except for the
      Error form and a promise, which is a `TypeError` with an await hint rather than a silent `{}`.
@@ -38,11 +38,8 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      10,000,000 elements (`Array(n)`, `length =`, `Array.from`, `split`, `matchAll`, `concat`, `flat`; below the JS
      maximum of 2^32 - 1), and 10,000 pending promises at once. Exceeding one throws a `RangeError`. A single regular
      expression match can still run long on a pathological pattern; the host regex engine has no interrupt hook.
- [x] A trailing comma after a rest parameter is a syntax error, with or without `"use strict"`.
- [x] A program that begins with `"use strict"` rejects `yield` as an identifier and duplicate parameter names at
-      parse time. Without it, `yield` is an ordinary binding.
- [ ] Duplicate parameter names in non-strict code throw when the function is called, instead of binding the last
-      parameter as JavaScript does.
+- [ ] Strict-mode early errors: duplicate parameter names, `yield` as an identifier, and a trailing comma after a
+      rest parameter are accepted unless the program itself begins with `"use strict"`.

 ## Values and literals

@@ -56,7 +53,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] `NaN` and `Infinity` globals.
 - [ ] BigInt literals and in-interpreter BigInt arithmetic; BigInt remains invalid at JSON-like host boundaries.
 - [ ] Arbitrary Symbol primitive values and symbol-keyed properties. The confined `Symbol.iterator` and
-      `Symbol.asyncIterator` keys are available only for the iterator protocols.
+      `Symbol.asyncIterator` keys are available only for custom iterator protocols.
 - [ ] Tagged-template calls.
 - [ ] Getter and setter definitions in object literals.

@@ -95,10 +92,9 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] `if`/`else` and conditional expressions.
 - [x] `switch`, including default clauses and fallthrough.
 - [x] `for`, `while`, and `do...while`.
- [x] `for...of` over arrays, strings, Maps, Sets, URLSearchParams, Headers, Uint8Arrays, built-in iterators, custom
-      synchronous iterators, and confined synchronous generators. Abrupt completion invokes the iterator's optional `return()`.
- [x] `for...in` over own keys of plain objects, arrays, strings, and tool references. `null`, `undefined`, and other
-      non-objects iterate nothing. An un-awaited promise throws rather than iterating.
+- [x] `for...of` over arrays, strings, Maps, Sets, URLSearchParams, Headers, custom synchronous iterators, and
+      confined synchronous generators. Abrupt completion invokes the iterator's optional `return()`.
+- [x] `for...in` over own keys of plain objects, arrays, strings, and tool references; other values iterate nothing.
 - [x] Unlabeled `break` and `continue`.
 - [x] `try`, `catch`, optional catch bindings, and `finally`.
 - [x] `throw` with arbitrary values.
@@ -112,8 +108,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 ## Functions and callbacks

 - [x] Function declarations, function expressions, and arrow functions.
- [x] Synchronous and `async` functions. A line break between `function` and the name is allowed, as in JavaScript;
-      a line break between `async` and `function` is not an async function.
+- [x] Synchronous and `async` functions.
 - [x] Closures, recursion, default parameters, rest parameters, and destructured parameters.
 - [x] A call depth limit of 10000: deeper nesting throws a catchable `RangeError: Maximum call stack size exceeded`
      at the overflowing call instead of running until the timeout. Callbacks invoked by built-ins count below the
@@ -148,6 +143,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      `Array.prototype.push.name === "push"`).
 - [ ] A named function expression's name is not bound inside its own body.
 - [ ] Redeclaring a function in the same scope is rejected; in JavaScript the last declaration wins.
+- [ ] A line terminator between `async function` and the function name.
 - [ ] Generator and async generator functions evaluate parameter defaults and destructuring at the first `next()`
      rather than at the call, so their errors are not thrown synchronously.
 - [x] Synchronous and async generator declarations/expressions, `yield`, and `yield*`, including lazy bodies,
@@ -184,8 +180,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      on any other value throws a catchable `TypeError` naming the callee: other built-in functions such as `Number`
      say `new` is unsupported and point at the plain call, user-defined functions report the constructor gap below,
      and non-callable values are not constructors. Error constructors take the ES2022 options object, so
-      `new Error(message, { cause })` installs a non-enumerable `cause` when the option is present. `Error.isError`
-      is true for every Error value.
+      `new Error(message, { cause })` installs a non-enumerable `cause` when the option is present.
 - [x] Arithmetic operators: `+`, `-`, `*`, `/`, `%`, and `**`.
 - [x] Equality and ordering: `==`, `!=`, `===`, `!==`, `<`, `<=`, `>`, and `>=`.
 - [x] Bitwise operators: `&`, `|`, `^`, `~`, `<<`, `>>`, and `>>>`.
@@ -275,8 +270,8 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] `Object.is` for supported data values.
 - [x] `Object.groupBy` over finite collections and custom synchronous iterators/generators, with string-key coercion
      and plain-object results.
- [x] `Object.prototype` methods on values: `toString` (`"[object Array]"`), `toLocaleString` (calls the value's
-      `toString`, as in JS), `valueOf`, `hasOwnProperty`, `isPrototypeOf`, and `propertyIsEnumerable`.
+- [x] `Object.prototype` methods on values: `toString` (`"[object Array]"`), `toLocaleString`, `valueOf`,
+      `hasOwnProperty`, `isPrototypeOf`, and `propertyIsEnumerable`.

 ## Arrays

@@ -290,14 +285,9 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      `lastIndexOf`.
 - [x] Aggregation: `reduce` and `reduceRight`.
 - [x] Ordering: `sort`, `toSorted`, `reverse`, and `toReversed`.
- [x] Access/copying: `at`, `slice`, `concat`, `flat`, `with`, `join`, and `toLocaleString` (each element's
-      `toLocaleString`, holes and nullish elements as empty strings).
+- [x] Access/copying: `at`, `slice`, `concat`, `flat`, `with`, and `join`.
 - [x] Mutation: `push`, `pop`, `shift`, `unshift`, `splice`, `fill`, and `copyWithin`.
- [x] `keys`, `values`, `entries`, and `[Symbol.iterator]` (the same function as `values`) return live iterator objects
-      with `next()` and `[Symbol.iterator]`, as in JS. Iterator objects are opaque references: they print as
-      `[opaque reference]`, serialize to `{}`, and cannot be passed to extensions. Every built-in collection iterator
-      shares one prototype. JavaScript gives each collection its own; the difference is not observable here because
-      `Object.getPrototypeOf` is not exposed.
+- [x] Materialized iteration helpers: `keys`, `values`, and `entries` return arrays rather than iterators.
 - [x] `length`, numeric indexing, index assignment, spread, and `for...of`.
 - [x] The `thisArg` argument of `Array.from` is accepted and ignored, like JS arrows.
 - [x] `Array.prototype.toSpliced`.
@@ -310,13 +300,13 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      form, like `JSON.stringify`.
 - [ ] Argument coercion for `indexOf`, `lastIndexOf`, `includes`, `fill`, `flat`, `copyWithin`, and the `join`
      separator: JavaScript applies ToIntegerOrInfinity/ToString (including `valueOf`, strings, and `undefined`), the
-      interpreter requires numbers and strings. `indexOf()` and `lastIndexOf()` with no argument already search for
-      `undefined`; `includes()` still requires a value.
+      interpreter requires numbers and strings; `includes()`/`indexOf()` with no argument should search for
+      `undefined`.
+- [ ] Iterator objects from `keys`, `values`, and `entries` with a live `next()`.

 ## Strings

- [x] Case/normalization: `toLowerCase`, `toUpperCase`, `normalize`, and the `toLocaleLowerCase`/`toLocaleUpperCase`
-      aliases, which ignore their locale argument and apply the default Unicode casing.
+- [x] Case/normalization: `toLowerCase`, `toUpperCase`, `normalize`.
 - [x] Trimming: `trim`, `trimStart`, and `trimEnd`, plus the Annex B `trimLeft` and `trimRight` aliases.
 - [x] Searching/tests: `includes`, `startsWith`, `endsWith`, `indexOf`, `lastIndexOf`, and `search`.
 - [x] Slicing/access: `slice`, `substring`, Annex B `substr`, `at`, `charAt`, `charCodeAt`, and `codePointAt`.
@@ -324,7 +314,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Regular-expression integration: `match`, materialized `matchAll`, `replace`, `replaceAll`, `split`, and `search`.
 - [x] `localeCompare`; locale and options arguments are currently ignored.
 - [x] `isWellFormed` and `toWellFormed`.
- [x] `toString`, `length`, numeric indexing, spread, `for...of`, and `[Symbol.iterator]` by Unicode code point.
+- [x] `toString`, `length`, numeric indexing, spread, and `for...of` by Unicode code point.
 - [x] Static `String.fromCharCode` and `String.fromCodePoint`.
 - [x] Native argument coercion for supported String methods; for example, `includes(1)` and `slice("1")` coerce like
      native JS, `split(undefined)` returns the whole string, and `includes`/`startsWith`/`endsWith` reject regular
@@ -340,8 +330,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Coercion functions: `Number`, `parseInt`, and `parseFloat`.
 - [x] Number predicates/parsers: `Number.isInteger`, `Number.isFinite`, `Number.isNaN`, `Number.isSafeInteger`,
      `Number.parseInt`, and `Number.parseFloat`.
- [x] Number formatting: `toFixed`, `toPrecision`, `toExponential`, `toString`, `valueOf`, and `toLocaleString`, which
-      always formats as `en-US` (`"1,234.5"`) so output does not depend on the host.
+- [x] Number formatting: `toFixed`, `toPrecision`, `toExponential`, `toString`, and `valueOf`.
 - [x] Number constants: `MAX_SAFE_INTEGER`, `MIN_SAFE_INTEGER`, `MAX_VALUE`, `MIN_VALUE`, `EPSILON`, `NaN`,
      `POSITIVE_INFINITY`, and `NEGATIVE_INFINITY`.
 - [x] Math constants: `PI`, `E`, `LN2`, `LN10`, `LOG2E`, `LOG10E`, `SQRT2`, and `SQRT1_2`.
@@ -354,8 +343,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      use their epoch time) and reject opaque runtime references as data errors.
 - [x] Unknown static members on global namespaces and on `Number`/`String`/the coercion functions read as `undefined`
      for feature detection. Calling any undefined value reports a native-style `TypeError` naming the callee, for
-      example `Math.sum is not a function.` or `search(...).catch is not a function.` Unknown `Promise` statics keep
-      their descriptive error.
+      example `Math.sum is not a function.` Unknown `Promise` statics keep their descriptive error.
 - [x] `Math.sumPrecise` over finite collections and custom synchronous iterators/generators, rejecting non-number
      elements without coercion.
 - [x] Global coercing `isFinite` and `isNaN`; opaque runtime references reject as data errors, like `Number(...)`.
@@ -389,8 +377,6 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      `TimeClip` behavior.
 - [x] `Date.prototype.toUTCString` and its `toGMTString` alias.
 - [x] `toDateString` and `toTimeString` in the host's local timezone.
- [x] `toLocaleString`, `toLocaleDateString`, and `toLocaleTimeString` always format as `en-US` in UTC
-      (`"1/1/1970, 12:00:00 AM"`) so output does not depend on the host.
 - [x] Native one-argument Date coercion for supported values, including booleans, null, arrays, and plain objects.
 - [ ] Date setters and multi-argument construction coerce object arguments through `valueOf`/`toString` and surface
      their throws.
@@ -416,11 +402,10 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262

 - [x] Static `Map.groupBy` over finite collections and custom synchronous iterators/generators, preserving key identity.
 - [x] `new Map()` from synchronous iterables of entries.
- [x] Map `get`, `set`, `has`, `delete`, `clear`, `size`, `forEach`, `getOrInsert`, and `getOrInsertComputed`.
+- [x] Map `get`, `set`, `has`, `delete`, `clear`, `size`, and `forEach`.
 - [x] `new Set()` from synchronous iterables.
 - [x] Set `add`, `has`, `delete`, `clear`, `size`, and `forEach`.
- [x] Live `keys`, `values`, `entries`, and `[Symbol.iterator]` iterators for Map and Set; a Set-like operand's `keys()`
-      may return a built-in iterator or an array.
+- [x] Materialized `keys`, `values`, and `entries` arrays for Map and Set.
 - [x] Spread, `for...of`, `Array.from`, and `Object.fromEntries` integration.
 - [x] Map and Set values serialize to `{}` at host/JSON boundaries.
 - [x] Set composition and relation methods: `union`, `intersection`, `difference`, `symmetricDifference`, `isSubsetOf`,
@@ -436,9 +421,8 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Writable URL fields except `origin`.
 - [x] `new URLSearchParams()` from query strings, data objects, synchronous iterables of pairs, and URLSearchParams.
 - [x] URLSearchParams `append`, `delete`, `get`, `getAll`, `has`, `set`, `sort`, `forEach`, `keys`, `values`,
-      `entries`, `[Symbol.iterator]`, `toString`, and `size`.
- [x] URL values are their href in `JSON.stringify` and at the host boundary. URLSearchParams are `{}` in
-      `JSON.stringify` and their query string at the host boundary.
+      `entries`, `toString`, and `size`.
+- [x] URL values serialize to their href; URLSearchParams serialize to `{}`.

 ## Uint8Array

@@ -450,8 +434,7 @@ with a hint to encode as text first (`TextDecoder`, `toBase64`, `toHex`).
 - [x] Index reads and writes with JS byte semantics: values wrap modulo 256, out-of-range writes are ignored, indexes
      cannot be deleted. `length` is a prototype accessor, so `Object.keys` lists only indexes.
 - [x] `at`, `slice`, `subarray` (a view on the same bytes), `set`, `fill`, `reverse`, `indexOf`, `lastIndexOf`,
-      `includes`, `join`, `toString`, `toBase64`, `toHex`, and live `keys`, `values`, `entries`, and `[Symbol.iterator]`
-      iterators.
+      `includes`, `join`, `toString`, `toBase64`, `toHex`, and materialized `keys`, `values`, and `entries` arrays.
 - [x] Spread, destructuring, `for...of`, `yield*`, `Array.from`, and `new Set(bytes)`. `Array.isArray` is false.
 - [x] String coercion joins with commas; `JSON.stringify` gives `{"0":1,...}`; `console.log` prints
      `Uint8Array(n) [...]`.
@@ -467,8 +450,8 @@ with a hint to encode as text first (`TextDecoder`, `toBase64`, `toHex`).
      `fatal` and `ignoreBOM` options; `decode` takes a Uint8Array or nothing.
 - [x] `new Headers()` from records, synchronous iterables of pairs, and Headers, wrapping the host's `Headers`: names
      fold to lowercase, values are normalized and combined, and invalid names or values throw a `TypeError`.
- [x] Headers `append`, `delete`, `get`, `getSetCookie`, `has`, `set`, `forEach`, `keys`, `values`, `entries`, and
-      `[Symbol.iterator]`; iteration is live and sorted by name, with `set-cookie` values kept apart.
+- [x] Headers `append`, `delete`, `get`, `getSetCookie`, `has`, `set`, `forEach`, `keys`, `values`, and `entries`;
+      iteration is live and sorted by name, with `set-cookie` values kept apart.
 - [x] Headers serialize to a `{ name: value }` object in JSON, in results, and in tool arguments.
 - [ ] `Request`, `Response`, and `Blob`.
 - [ ] `crypto.subtle` and `TextDecoder` streaming or non-UTF-8 encodings.
@@ -483,8 +466,7 @@ Nothing is exposed unless a host provides it; extension calls are not tool calls
 - [x] Every value crossing in either direction is converted, never shared: plain objects and arrays are copied,
      `Date`, `RegExp`, `URL`, `URLSearchParams`, `Headers`, `Map`, `Set`, and `Uint8Array` become fresh copies with
      their contents converted (a host `ArrayBuffer` comes in as a `Uint8Array`; other typed arrays cannot come out),
-      errors cross as errors with their name, message, `cause`, and own enumerable data, and a `__proto__` key is
-      dropped. Functions, generators,
+      errors cross as errors with their name and message, and a `__proto__` key is dropped. Functions, generators,
      un-awaited promises, and symbols cannot be passed in; a class instance, a symbol, or a BigInt cannot come out.
 - [x] A host function inside a result becomes a program function whose calls cross the same way, so a result can
      carry methods (`res.json()`) whose host closures keep the host state. Diagnostics name it by its path
@@ -509,10 +491,8 @@ Nothing is exposed unless a host provides it; extension calls are not tool calls
 - [x] `AggregateError` with the `(errors, message?)` signature and an own `errors` array, constructed directly or by
      an all-rejected `Promise.any`; direct construction accepts custom synchronous iterators and generators.
 - [x] Error `name`/`message`, error inheritance through `instanceof`, and plain-data serialization. `message` is an own
-      non-enumerable property and `name` is inherited, as in JS, so `Object.keys(err)` is `[]` for a plain error. The
-      result boundary still emits `{ name, message, ...own enumerable }`, so a field such as `code` crosses. `cause` is
-      non-enumerable: an extension Error carries it, and this JSON form does not. Errors have no `stack`; the diagnostic
-      carries a 1-based line and column in the submitted source instead.
+      non-enumerable property and `name` is inherited, as in JS, so `Object.keys(err)` is `[]` while the host still
+      receives `{ name, message }`. Errors have no `stack`; the diagnostic carries the source location instead.
 - [x] `instanceof` against any constructor with a `prototype`, including every built-in and `Function`.
 - [x] Catchable user throws, runtime failures raised during interpreted evaluation, awaited tool failures, and awaited
      tool-call-limit failures; parse/compile failures, cooperative timeout, and output bounding remain outside program
@@ -521,9 +501,8 @@ Nothing is exposed unless a host provides it; extension calls are not tool calls
      short orientation to the supported subset; this matrix is the full reference.
 - [x] Model-visible host failure messages and underlying causes, including output-validation errors.
 - [x] Caught errors do not distinguish user throws, interpreter failures, and tool failures; a program sees one
-      Error-shaped value in `catch`, rejection handlers, and `Promise.allSettled` reasons. It always has `name` and
-      `message`, plus `cause` and own data when the failure carried them. This is deliberate: the program should
-      handle a failure the same way regardless of where it originated.
+      Error-shaped value with `name` and `message` in `catch`, rejection handlers, and `Promise.allSettled` reasons.
+      This is deliberate: the program should handle a failure the same way regardless of where it originated.
 - [x] Failures raised by the interpreter are `TypeError`s unless JavaScript names them otherwise (`RangeError`,
      `ReferenceError`, `SyntaxError`, `URIError`), so `e instanceof TypeError` and `e.constructor === TypeError`
      hold. Unsupported syntax reached at runtime is a `SyntaxError`; awaited tool failures stay plain `Error`.
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/codemode",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "description": "Effect-native confined code execution over schema-described tools",
  "type": "module",
  "license": "MIT",
@@ -1,7 +1,6 @@
 import { Effect, Exit } from "effect"
 import { coerceToNumber, coerceToString } from "../stdlib/value.js"
 import type { Interpreter } from "./interpreter.js"
-import { primitivePrototype } from "./intrinsics.js"
 import { typeError } from "./model.js"
 import { Callable, get, Native, DateObj, Obj } from "./objects.js"
 import { typeofValue } from "./references.js"
@@ -44,13 +43,6 @@ export const toPrimitive = <R>(
  })
 }

-/** Invoke(value, name): calls the method the value would find through its prototype. */
-export const invoke = <R>(ctx: Interpreter<R>, value: unknown, name: string, label: string) => {
-  const target = value instanceof Obj ? value : primitivePrototype(ctx.builtins, value)
-  if (target === undefined) throw typeError(`${label} called on null or undefined.`)
-  return ctx.call(get(target, name), value, [])
-}
-
 export const toPrimitiveString = <R>(ctx: Interpreter<R>, value: unknown) =>
  Effect.map(toPrimitive(ctx, value, "string"), coerceToString)

@@ -168,7 +168,6 @@ export const errorGlobal = <R>(type: ErrorType, ctx: Interpreter<R>) => {
    methods(builtins, prototype, [
      ["toString", 0, (thisValue) => errorToString(receiver(Obj, thisValue, "Error.prototype.toString"))],
    ])
-    methods(builtins, ctor, [["isError", 1, (_, args) => args[0] instanceof ErrorObj]])
  }
  return ctor
 }
@@ -20,7 +20,6 @@ import {
  DateObj,
  ErrorObj,
  GeneratorObj,
-  IteratorObj,
  MapObj,
  Obj,
  PromiseObj,
@@ -62,7 +61,6 @@ export const extensionGlobals = <R>(
      !(value instanceof Obj) ||
      value instanceof Callable ||
      value instanceof GeneratorObj ||
-      value instanceof IteratorObj ||
      value instanceof PromiseObj
    ) {
      throw typeError(`${label} contains ${describeValue(value)}, which cannot be passed to an extension.`)
@@ -12,7 +12,6 @@ import { regexpGlobal } from "../stdlib/regexp.js"
 import { stringGlobal } from "../stdlib/string.js"
 import { uriGlobal, urlGlobal, urlSearchParamsGlobal } from "../stdlib/url.js"
 import { headersGlobal } from "../stdlib/headers.js"
-import { iteratorGlobals } from "../stdlib/iterator.js"
 import { coercion } from "../stdlib/value.js"
 import { base64Global, cryptoGlobal } from "../stdlib/web.js"
 import { ToolReference } from "../tool-runtime.js"
@@ -102,6 +101,5 @@ export const globalNames: ReadonlySet<string> = new Set(Object.keys(table))
 /** The immutable global bindings of every program, in declaration order. */
 export const globals = <R>(ctx: Interpreter<R>): ReadonlyArray<readonly [string, unknown]> => {
  generatorGlobals(ctx)
-  iteratorGlobals(ctx)
  return Object.entries(table).map(([name, factory]) => [name, factory(ctx)] as const)
 }
@@ -62,7 +62,7 @@ import {
 } from "./model.js"
 import { checkStringLength } from "./limits.js"
 import { locate, materialize } from "./errors.js"
-import { type Builtins, primitivePrototype } from "./intrinsics.js"
+import type { Builtins } from "./intrinsics.js"
 import { globals } from "./globals.js"
 import {
  assign,
@@ -79,7 +79,6 @@ import {
  DateObj,
  Fn,
  GeneratorObj,
-  IteratorObj,
  MapObj,
  Obj,
  PromiseObj,
@@ -110,25 +109,20 @@ const loopExit = (result: StatementResult, labels: ReadonlySet<string> | undefin
  return undefined
 }

-// Native engines name the callee (`search(...).catch is not a function`), including call chains. Returns
-// undefined when a link cannot be named, so a chain is either named completely or not at all.
-const calleeDescription = (node: Expression | Super | undefined): string | undefined => {
-  if (node?.type === "Identifier") return node.name
-  if (node?.type === "CallExpression") {
-    const target = calleeDescription(node.callee)
-    return target === undefined ? undefined : `${target}(...)`
+const calleeDescription = (callee: Expression | Super | undefined): string => {
+  if (callee?.type === "Identifier") return callee.name
+  if (callee?.type === "MemberExpression") {
+    const object = callee.object
+    const property = callee.property
+    const key =
+      !callee.computed && property.type === "Identifier"
+        ? property.name
+        : property.type === "Literal" && typeof property.value === "string"
+          ? property.value
+          : undefined
+    if (object.type === "Identifier" && key !== undefined) return `${object.name}.${key}`
  }
-  if (node?.type !== "MemberExpression") return undefined
-  const property = node.property
-  const key =
-    !node.computed && property.type === "Identifier"
-      ? property.name
-      : property.type === "Literal" && typeof property.value === "string"
-        ? property.value
-        : undefined
-  if (key === undefined) return undefined
-  const object = calleeDescription(node.object)
-  return object === undefined ? undefined : `${object}.${key}`
+  return "The called value"
 }

 // OrdinaryHasInstance: walk the left operand's chain looking for the constructor's `prototype`.
@@ -656,8 +650,8 @@ class Frame<R> {
      if (declared?.lexical) self.predeclarePattern(declared.pattern, declared.mutable, left)
      const right = yield* self.evaluateExpression(node.right)

-      const cursor = self.hostCursor(right)
-      const iterator = cursor === undefined ? yield* self.customIterator(right, node, awaiting) : undefined
+      const iterator = yield* self.customIterator(right, node, awaiting)
+      const cursor = iterator === undefined ? yield* self.iterate(right, node) : undefined
      if (iterator === undefined && cursor === undefined) {
        throw invalidData(
          `${awaiting ? "for await...of" : "for...of"} requires an array, string, Map, Set, URLSearchParams, or Headers, or custom iterator value.`,
@@ -752,20 +746,6 @@ class Frame<R> {
  }

  iterate(value: unknown, node?: AstNode) {
-    const cursor = this.hostCursor(value)
-    if (cursor !== undefined) return Effect.succeed(cursor)
-    const self = this
-    return Effect.map(this.customIterator(value, node, false), (iterator) =>
-      iterator === undefined
-        ? undefined
-        : {
-            next: self.nextIteratorResult(iterator, node, false),
-            close: Effect.suspend(() => self.closeIterator(iterator, node, false)),
-          },
-    )
-  }
-
-  private hostCursor(value: unknown) {
    const iterator =
      value instanceof Arr
        ? value.items[Symbol.iterator]()
@@ -781,21 +761,29 @@ class Frame<R> {
                  ? value.headers.entries()
                  : value instanceof Bytes
                    ? value.bytes.values()
-                    : value instanceof IteratorObj
-                      ? value.iterator
-                      : undefined
-    if (iterator === undefined) return undefined
-    const proto = this.ctx.builtins.Array
-    return {
-      next: Effect.sync(() => {
-        const step = iterator.next()
-        return {
-          done: Boolean(step.done),
-          value: Array.isArray(step.value) ? new Arr(proto, step.value) : step.value,
-        }
-      }),
-      close: Effect.void,
+                    : undefined
+    if (iterator !== undefined) {
+      const proto = this.ctx.builtins.Array
+      return Effect.succeed({
+        next: Effect.sync(() => {
+          const step = iterator.next()
+          return {
+            done: Boolean(step.done),
+            value: Array.isArray(step.value) ? new Arr(proto, step.value) : step.value,
+          }
+        }),
+        close: Effect.void,
+      })
    }
+    const self = this
+    return Effect.map(this.customIterator(value, node, false), (iterator) =>
+      iterator === undefined
+        ? undefined
+        : {
+            next: self.nextIteratorResult(iterator, node, false),
+            close: Effect.suspend(() => self.closeIterator(iterator, node, false)),
+          },
+    )
  }

  private customIterator(value: unknown, node: AstNode | undefined, allowAsync = true) {
@@ -1310,7 +1298,7 @@ class Frame<R> {
        // `new` itself is supported, so a non-constructible callee is a TypeError like JS rather than
        // unsupported syntax. Built-ins like Number are real constructors in JS, so do not claim
        // otherwise; say `new` is unsupported for them and point at the plain call.
-        const name = calleeDescription(node.callee) ?? "The called value"
+        const name = calleeDescription(node.callee)
        const message =
          callee instanceof Fn
            ? `${name} cannot be constructed: user-defined constructors and classes are not supported. Call it as a function that returns a plain object instead.`
@@ -1613,7 +1601,7 @@ class Frame<R> {
      if (callable instanceof Native) {
        return yield* self.native(() => (callable as Native<R>).call(thisValue, args), node)
      }
-      throw typeError(`${calleeDescription(callee) ?? "The called value"} is not a function.`, callee ?? node)
+      throw typeError(`${calleeDescription(callee)} is not a function.`, callee ?? node)
    })
  }

@@ -2076,14 +2064,16 @@ class Frame<R> {

      if (objectValue instanceof Obj) return { target: objectValue, key, receiver: objectValue }

-      // Strings own length and indexes; every other primitive property reads through the wrapper prototype.
+      // Primitives read through their wrapper prototype without being boxed; strings own length and indexes.
+      const builtins = self.ctx.builtins
      if (typeof objectValue === "string") {
        if (key === "length") return { value: objectValue.length }
        const index = typeof key === "symbol" ? undefined : parseArrayIndex(key)
        if (index !== undefined) return { value: objectValue[index] }
+        return { target: builtins.String, key, receiver: objectValue }
      }
-      const proto = primitivePrototype(self.ctx.builtins, objectValue)
-      if (proto !== undefined) return { target: proto, key, receiver: objectValue }
+      if (typeof objectValue === "number") return { target: builtins.Number, key, receiver: objectValue }
+      if (typeof objectValue === "boolean") return { target: builtins.Boolean, key, receiver: objectValue }

      if (objectValue === null || objectValue === undefined) {
        throw typeError(`Cannot read properties of ${objectValue} (reading '${String(key)}').`, objectNode)
@@ -52,14 +52,6 @@ export const createErrorValue = (prototype: Obj, message: string | undefined): E
  return value
 }

-/** The prototype a primitive reads its methods from without being boxed; none for null, undefined, and symbols. */
-export const primitivePrototype = (builtins: Builtins, value: unknown): Obj | undefined => {
-  if (typeof value === "string") return builtins.String
-  if (typeof value === "number") return builtins.Number
-  if (typeof value === "boolean") return builtins.Boolean
-  return undefined
-}
-
 export const createBuiltins = (): Builtins => {
  const object = new Obj(null)
  // Function.prototype is itself callable and returns undefined.
@@ -86,10 +86,9 @@ export const unsupportedSyntax = (kind: string, node: AstNode): PendingThrow =>
 export const isRecord = (value: unknown): value is Record<string, unknown> =>
  typeof value === "object" && value !== null

-// Acorn lines are 1-based and its columns are 0-based. Diagnostics use 1-based columns of the submitted source.
 export const sourceLocation = (node: AstNode): { readonly line: number; readonly column: number } => ({
-  line: node.loc?.start.line ?? 1,
-  column: (node.loc?.start.column ?? 0) + 1,
+  line: Math.max(1, (node.loc?.start.line ?? 2) - 1),
+  column: Math.max(1, (node.loc?.start.column ?? 4) - 3),
 })

 export const formatLocation = (node?: AstNode): string => {
@@ -122,16 +122,6 @@ export class GeneratorObj extends Obj {
  }
 }

-/** A built-in collection iterator: live over the host collection, yielding program values. */
-export class IteratorObj extends Obj {
-  constructor(
-    proto: Obj,
-    readonly iterator: IteratorObject<unknown>,
-  ) {
-    super(proto)
-  }
-}
-
 export class DateObj extends Obj {
  constructor(
    proto: Obj,
@@ -9,7 +9,6 @@ import {
  Bytes,
  DateObj,
  GeneratorObj,
-  IteratorObj,
  MapObj,
  Obj,
  PromiseObj,
@@ -24,7 +23,6 @@ import {
 export const isRuntimeReference = (value: unknown): boolean =>
  value instanceof Callable ||
  value instanceof GeneratorObj ||
-  value instanceof IteratorObj ||
  value instanceof ToolReference ||
  value instanceof PromiseObj ||
  isWrapper(value)
@@ -91,7 +89,6 @@ export const describeValue = (value: unknown): string => {
  if (value instanceof HeadersObj) return "a Headers"
  if (value instanceof Bytes) return "a Uint8Array"
  if (value instanceof GeneratorObj) return "a generator"
-  if (value instanceof IteratorObj) return "an iterator"
  if (isRuntimeReference(value)) return "a function"
  if (typeof value === "object") return "a data object"
  return `a ${typeof value}`
@@ -1,10 +1,10 @@
 import { Effect } from "effect"
 import { constructor, type Method, methods, prototypeFrom, receiver } from "../interpreter/native.js"
 import { checkArrayLength, checkStringLength, MAX_ARRAY_LENGTH } from "../interpreter/limits.js"
-import { invalidData, IteratorSymbol, rangeError, typeError } from "../interpreter/model.js"
-import { define, get, hidden, Arr, GeneratorObj, IteratorObj, Obj } from "../interpreter/objects.js"
+import { invalidData, rangeError, typeError } from "../interpreter/model.js"
+import { get, Arr, GeneratorObj, Obj } from "../interpreter/objects.js"
 import { describeValue, rejectCircularInsertion } from "../interpreter/references.js"
-import { applyCollectionCallback, invoke, preserveConsumerError } from "../interpreter/callback.js"
+import { applyCollectionCallback, preserveConsumerError } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
 import { compareText } from "../tool-runtime.js"
 import { coerceToNumber, coerceToString } from "./value.js"
@@ -340,31 +340,13 @@ export const arrayGlobal = <R>(ctx: Interpreter<R>) => {
        return target
      },
    ],
-    [
-      "toLocaleString",
-      0,
-      (thisValue) =>
-        Effect.map(
-          Effect.forEach(self(thisValue, "toLocaleString").items, (item) =>
-            item === null || item === undefined
-              ? Effect.succeed("")
-              : Effect.map(invoke(ctx, item, "toLocaleString", "Array.prototype.toLocaleString"), coerceToString),
-          ),
-          (parts) => parts.join(","),
-        ),
-    ],
-    ["keys", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "keys").items.keys())],
-    ["values", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "values").items.values())],
+    ["keys", 0, (thisValue) => wrap(Array.from(self(thisValue, "keys").items.keys()))],
+    ["values", 0, (thisValue) => wrap([...self(thisValue, "values").items])],
    [
      "entries",
      0,
      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          self(thisValue, "entries")
-            .items.entries()
-            .map(([index, item]) => wrap([index, item])),
-        ),
+        wrap(Array.from(self(thisValue, "entries").items.entries(), ([index, item]) => wrap([index, item]))),
    ],
    iterate("map", 1, (target, receiver, apply) =>
      Effect.gen(function* () {
@@ -508,6 +490,5 @@ export const arrayGlobal = <R>(ctx: Interpreter<R>) => {
      }),
    ),
  ])
-  define(proto, IteratorSymbol, get(proto, "values"), hidden)
  return array
 }
@@ -1,8 +1,8 @@
 import { Effect } from "effect"
 import { checkArrayLength, checkStringLength } from "../interpreter/limits.js"
 import { constructor, methods, prototypeFrom, receiver, requiresNew } from "../interpreter/native.js"
-import { IteratorSymbol, rangeError, syntaxError, typeError } from "../interpreter/model.js"
-import { define, defineAccessor, get, hidden, Arr, Bytes, IteratorObj, Obj } from "../interpreter/objects.js"
+import { rangeError, syntaxError, typeError } from "../interpreter/model.js"
+import { defineAccessor, get, Arr, Bytes, Obj } from "../interpreter/objects.js"
 import { describeValue } from "../interpreter/references.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
 import { coerceToNumber, coerceToString } from "./value.js"
@@ -173,21 +173,15 @@ export const uint8ArrayGlobal = <R>(ctx: Interpreter<R>) => {
    ["toString", 0, (thisValue) => self(thisValue, "toString").bytes.join(",")],
    ["toBase64", 0, (thisValue) => self(thisValue, "toBase64").bytes.toBase64()],
    ["toHex", 0, (thisValue) => self(thisValue, "toHex").bytes.toHex()],
-    ["keys", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "keys").bytes.keys())],
-    ["values", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "values").bytes.values())],
+    ["keys", 0, (thisValue) => wrapAll(Array.from(self(thisValue, "keys").bytes.keys()))],
+    ["values", 0, (thisValue) => wrapAll(Array.from(self(thisValue, "values").bytes.values()))],
    [
      "entries",
      0,
      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          self(thisValue, "entries")
-            .bytes.entries()
-            .map(([index, byte]) => wrapAll([index, byte])),
-        ),
+        wrapAll(Array.from(self(thisValue, "entries").bytes.entries(), ([index, byte]) => wrapAll([index, byte]))),
    ],
  ])
-  define(proto, IteratorSymbol, get(proto, "values"), hidden)
  return uint8Array
 }

@@ -1,6 +1,6 @@
 import { Effect } from "effect"
 import { constructor, fn, type Method, methods, prototypeFrom, receiver, requiresNew } from "../interpreter/native.js"
-import { invalidData, IteratorSymbol, typeError } from "../interpreter/model.js"
+import { invalidData, typeError } from "../interpreter/model.js"
 import {
  define,
  defineAccessor,
@@ -9,7 +9,6 @@ import {
  hidden,
  isWrapper,
  Arr,
-  IteratorObj,
  MapObj,
  Obj,
  PromiseObj,
@@ -145,29 +144,6 @@ export const mapGlobal = <R>(ctx: Interpreter<R>) => {
        return target
      },
    ],
-    [
-      "getOrInsert",
-      2,
-      (thisValue, args) => {
-        const target = self(thisValue, "getOrInsert").map
-        if (!target.has(args[0])) target.set(args[0], args[1])
-        return target.get(args[0])
-      },
-    ],
-    [
-      "getOrInsertComputed",
-      2,
-      (thisValue, args) => {
-        const target = self(thisValue, "getOrInsertComputed").map
-        const apply = applyCollectionCallback(ctx, args[1], "Map.getOrInsertComputed")
-        if (target.has(args[0])) return target.get(args[0])
-        // The callback sees the stored key (-0 is +0) and its result wins over anything it inserted itself.
-        return Effect.map(apply([args[0] === 0 ? 0 : args[0]]), (value) => {
-          target.set(args[0], value)
-          return value
-        })
-      },
-    ],
    ["delete", 1, (thisValue, args) => self(thisValue, "delete").map.delete(args[0])],
    [
      "clear",
@@ -177,18 +153,12 @@ export const mapGlobal = <R>(ctx: Interpreter<R>) => {
        return undefined
      },
    ],
-    ["keys", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "keys").map.keys())],
-    ["values", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "values").map.values())],
+    ["keys", 0, (thisValue) => wrap(Array.from(self(thisValue, "keys").map.keys()))],
+    ["values", 0, (thisValue) => wrap(Array.from(self(thisValue, "values").map.values()))],
    [
      "entries",
      0,
-      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          self(thisValue, "entries")
-            .map.entries()
-            .map(([key, item]) => wrap([key, item])),
-        ),
+      (thisValue) => wrap(Array.from(self(thisValue, "entries").map.entries(), ([key, item]) => wrap([key, item]))),
    ],
    [
      "forEach",
@@ -203,7 +173,6 @@ export const mapGlobal = <R>(ctx: Interpreter<R>) => {
      },
    ],
  ])
-  define(proto, IteratorSymbol, get(proto, "entries"), hidden)
  return map
 }

@@ -249,8 +218,7 @@ const loadSetRecord = <R>(
      size: Math.max(Math.trunc(size), 0),
      has: (item: unknown) => Effect.map(ctx.call(has, source, [item]), Boolean),
      keys: () =>
-        Effect.flatMap(ctx.call(keys, source, []), (result): Effect.Effect<Iterable<unknown>> => {
-          if (result instanceof IteratorObj) return Effect.succeed(result.iterator)
+        Effect.flatMap(ctx.call(keys, source, []), (result) => {
          if (result instanceof Arr) return Effect.succeed(result.items)
          throw typeError(`Set.${name} expected 'keys' to return an iterator.`)
        }),
@@ -370,18 +338,12 @@ export const setGlobal = <R>(ctx: Interpreter<R>) => {
        return undefined
      },
    ],
-    ["keys", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "keys").set.values())],
-    ["values", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "values").set.values())],
+    ["keys", 0, (thisValue) => wrap(Array.from(self(thisValue, "keys").set.values()))],
+    ["values", 0, (thisValue) => wrap(Array.from(self(thisValue, "values").set.values()))],
    [
      "entries",
      0,
-      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          self(thisValue, "entries")
-            .set.values()
-            .map((item) => wrap([item, item])),
-        ),
+      (thisValue) => wrap(Array.from(self(thisValue, "entries").set.values(), (item) => wrap([item, item]))),
    ],
    [
      "forEach",
@@ -403,6 +365,5 @@ export const setGlobal = <R>(ctx: Interpreter<R>) => {
    operation("isSupersetOf"),
    operation("isDisjointFrom"),
  ])
-  define(proto, IteratorSymbol, get(proto, "values"), hidden)
  return set
 }
@@ -105,13 +105,6 @@ export const dateGlobal = <R>(ctx: Interpreter<R>) => {
    ["toTimeString", 0, (thisValue) => new Date(self(thisValue, "toTimeString").time).toTimeString()],
    ["toUTCString", 0, (thisValue) => new Date(self(thisValue, "toUTCString").time).toUTCString()],
    ["toGMTString", 0, (thisValue) => new Date(self(thisValue, "toGMTString").time).toUTCString()],
-    ...(["toLocaleString", "toLocaleDateString", "toLocaleTimeString"] as const).map(
-      (name): Method => [
-        name,
-        0,
-        (thisValue) => new Date(self(thisValue, name).time)[name]("en-US", { timeZone: "UTC" }),
-      ],
-    ),
    ...getters.map((name): Method => [name, 0, (thisValue) => new Date(self(thisValue, name).time)[name]()]),
    ...setters.map(
      ([name, length]): Method => [
@@ -1,7 +1,7 @@
 import { Effect } from "effect"
 import { constructor, methods, prototypeFrom, receiver, requiresNew } from "../interpreter/native.js"
-import { IteratorSymbol, typeError } from "../interpreter/model.js"
-import { define, entries, get, hidden, Arr, HeadersObj, IteratorObj, Obj } from "../interpreter/objects.js"
+import { typeError } from "../interpreter/model.js"
+import { entries, Arr, HeadersObj, Obj } from "../interpreter/objects.js"
 import { applyCollectionCallback } from "../interpreter/callback.js"
 import { isRuntimeReference } from "../interpreter/references.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
@@ -93,25 +93,13 @@ export const headersGlobal = <R>(ctx: Interpreter<R>) => {
        return attempt(() => target.set(arg(args, 0), arg(args, 1)))
      },
    ],
-    // Iterator.from because Bun's Headers typings predate iterator helpers; the runtime iterators already have them.
-    [
-      "keys",
-      0,
-      (thisValue) => new IteratorObj(builtins.Iterator, Iterator.from(self(thisValue, "keys").headers.keys())),
-    ],
-    [
-      "values",
-      0,
-      (thisValue) => new IteratorObj(builtins.Iterator, Iterator.from(self(thisValue, "values").headers.values())),
-    ],
+    ["keys", 0, (thisValue) => wrap(Array.from(self(thisValue, "keys").headers.keys()))],
+    ["values", 0, (thisValue) => wrap(Array.from(self(thisValue, "values").headers.values()))],
    [
      "entries",
      0,
      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          Iterator.from(self(thisValue, "entries").headers.entries()).map(([key, value]) => wrap([key, value])),
-        ),
+        wrap(Array.from(self(thisValue, "entries").headers.entries(), ([key, value]) => wrap([key, value]))),
    ],
    [
      "forEach",
@@ -127,6 +115,5 @@ export const headersGlobal = <R>(ctx: Interpreter<R>) => {
      },
    ],
  ])
-  define(proto, IteratorSymbol, get(proto, "entries"), hidden)
  return headers
 }
@@ -1,19 +0,0 @@
-import { methods, receiver } from "../interpreter/native.js"
-import { IteratorObj, record } from "../interpreter/objects.js"
-import type { Interpreter } from "../interpreter/interpreter.js"
-
-// Every built-in collection iterator shares the Iterator prototype; JS gives each collection its own, which is only
-// observable through getPrototypeOf.
-export const iteratorGlobals = <R>(ctx: Interpreter<R>): void => {
-  const builtins = ctx.builtins
-  methods(builtins, builtins.Iterator, [
-    [
-      "next",
-      0,
-      (thisValue) => {
-        const step = receiver(IteratorObj, thisValue, "Iterator.prototype.next").iterator.next()
-        return record(builtins.Object, { value: step.value, done: Boolean(step.done) })
-      },
-    ],
-  ])
-}
@@ -50,7 +50,6 @@ export const numberGlobal = <R>(ctx: Interpreter<R>) => {
  }
  methods(builtins, builtins.Number, [
    ["toFixed", 1, (thisValue, args) => self(thisValue, "toFixed").toFixed(optNum("toFixed", args[0]))],
-    ["toLocaleString", 0, (thisValue) => self(thisValue, "toLocaleString").toLocaleString("en-US")],
    [
      "toExponential",
      1,
@@ -29,7 +29,7 @@ import {
  set,
 } from "../interpreter/objects.js"
 import { containsOpaqueReference, describeValue, rejectCircularInsertion } from "../interpreter/references.js"
-import { invoke, preserveConsumerError } from "../interpreter/callback.js"
+import { preserveConsumerError } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
 import { ToolReference } from "../tool-runtime.js"
 import { groupBy } from "./collections.js"
@@ -196,7 +196,7 @@ export const objectGlobal = <R>(ctx: Interpreter<R>) => {
        true,
    ],
    ["toString", 0, (thisValue) => `[object ${classTag(thisValue)}]`],
-    ["toLocaleString", 0, (thisValue) => invoke(ctx, thisValue, "toString", "Object.prototype.toLocaleString")],
+    ["toLocaleString", 0, (thisValue) => `[object ${classTag(thisValue)}]`],
    [
      "valueOf",
      0,
@@ -1,8 +1,8 @@
 import { Effect } from "effect"
-import { constructor, fn, type Method, methods } from "../interpreter/native.js"
+import { constructor, type Method, methods } from "../interpreter/native.js"
 import { checkArrayLength, checkStringLength } from "../interpreter/limits.js"
-import { invalidData, IteratorSymbol, rangeError, typeError } from "../interpreter/model.js"
-import { define, hidden, Arr, IteratorObj, PromiseObj, RegExpObj, record } from "../interpreter/objects.js"
+import { invalidData, rangeError, typeError } from "../interpreter/model.js"
+import { Arr, PromiseObj, RegExpObj, record } from "../interpreter/objects.js"
 import { containsOpaqueReference, typeofValue } from "../interpreter/references.js"
 import { applyCollectionCallback, isSupportedCallback } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
@@ -150,8 +150,6 @@ export const stringGlobal = <R>(ctx: Interpreter<R>) => {
    simple("valueOf", 0, (value) => value),
    simple("toLowerCase", 0, (value) => value.toLowerCase()),
    simple("toUpperCase", 0, (value) => value.toUpperCase()),
-    simple("toLocaleLowerCase", 0, (value) => value.toLowerCase()),
-    simple("toLocaleUpperCase", 0, (value) => value.toUpperCase()),
    simple("trim", 0, (value) => value.trim()),
    simple("trimStart", 0, (value) => value.trimStart()),
    simple("trimLeft", 0, (value) => value.trimStart()),
@@ -260,16 +258,5 @@ export const stringGlobal = <R>(ctx: Interpreter<R>) => {
      return joined
    }),
  ])
-  define(
-    builtins.String,
-    IteratorSymbol,
-    fn(
-      builtins,
-      "[Symbol.iterator]",
-      0,
-      (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "[Symbol.iterator]")[Symbol.iterator]()),
-    ),
-    hidden,
-  )
  return string
 }
@@ -1,19 +1,7 @@
 import { Effect } from "effect"
 import { constructor, fn, type Method, methods, prototypeFrom, receiver, requiresNew } from "../interpreter/native.js"
-import { IteratorSymbol, PendingThrow, typeError, uriError } from "../interpreter/model.js"
-import {
-  define,
-  defineAccessor,
-  entries,
-  get,
-  hidden,
-  isWrapper,
-  Arr,
-  IteratorObj,
-  Obj,
-  URLObj,
-  URLSearchParamsObj,
-} from "../interpreter/objects.js"
+import { PendingThrow, typeError, uriError } from "../interpreter/model.js"
+import { defineAccessor, entries, isWrapper, Arr, Obj, URLObj, URLSearchParamsObj } from "../interpreter/objects.js"
 import { isRuntimeReference } from "../interpreter/references.js"
 import { applyCollectionCallback, preserveConsumerError } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
@@ -270,18 +258,13 @@ export const urlSearchParamsGlobal = <R>(ctx: Interpreter<R>) => {
        return undefined
      },
    ],
-    ["keys", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "keys").params.keys())],
-    ["values", 0, (thisValue) => new IteratorObj(builtins.Iterator, self(thisValue, "values").params.values())],
+    ["keys", 0, (thisValue) => wrap(Array.from(self(thisValue, "keys").params.keys()))],
+    ["values", 0, (thisValue) => wrap(Array.from(self(thisValue, "values").params.values()))],
    [
      "entries",
      0,
      (thisValue) =>
-        new IteratorObj(
-          builtins.Iterator,
-          self(thisValue, "entries")
-            .params.entries()
-            .map(([key, value]) => wrap([key, value])),
-        ),
+        wrap(Array.from(self(thisValue, "entries").params.entries(), ([key, value]) => wrap([key, value]))),
    ],
    ["toString", 0, (thisValue) => self(thisValue, "toString").params.toString()],
    [
@@ -298,6 +281,5 @@ export const urlSearchParamsGlobal = <R>(ctx: Interpreter<R>) => {
      },
    ],
  ])
-  define(proto, IteratorSymbol, get(proto, "entries"), hidden)
  return searchParams
 }
@@ -1,4 +1,4 @@
-import { JsonPointer, Schema, SchemaAST } from "effect"
+import { JsonPointer, Schema } from "effect"
 import type { Tool, JsonSchema, SchemaType } from "./tool.js"

 const isEffectSchema = (schema: SchemaType): schema is Schema.Decoder<unknown> & Schema.Top => Schema.isSchema(schema)
@@ -203,7 +203,7 @@ const renderSchema = (
 export const toTypeScript = (schema: Schema.Top, decoded = false, pretty = false): string => {
  try {
    const visible = decoded ? Schema.toType(schema) : schema
-    const document = Schema.toJsonSchemaDocument(visible, { onExcessProperty: "error" }) as {
+    const document = Schema.toJsonSchemaDocument(visible) as {
      readonly schema: JsonSchema
      readonly definitions?: Readonly<Record<string, JsonSchema>>
    }
@@ -230,7 +230,7 @@ export type InputProperty = {
 export const inputProperties = <R>(tool: Tool<R>): Array<InputProperty> => {
  try {
    const document = isEffectSchema(tool.input)
-      ? (Schema.toJsonSchemaDocument(tool.input, { onExcessProperty: "error" }) as {
+      ? (Schema.toJsonSchemaDocument(tool.input) as {
          readonly schema: JsonSchema
          readonly definitions?: Readonly<Record<string, JsonSchema>>
        })
@@ -261,16 +261,10 @@ export const inputProperties = <R>(tool: Tool<R>): Array<InputProperty> => {
 export const inputTypeScript = <R>(tool: Tool<R>, pretty = false): string =>
  isEffectSchema(tool.input) ? toTypeScript(tool.input, false, pretty) : jsonSchemaToTypeScript(tool.input, pretty)

-// Effect 4.0 models an empty Struct as a non-nullish object, so inspect its AST.
-// Raw JSON Schema inputs retain the compact `{}` rendering check.
-export const isEmptyInput = <R>(tool: Tool<R>): boolean => {
-  if (!isEffectSchema(tool.input)) return inputTypeScript(tool) === "{}"
-  return (
-    SchemaAST.isObjects(tool.input.ast) &&
-    tool.input.ast.propertySignatures.length === 0 &&
-    tool.input.ast.indexSignatures.length === 0
-  )
-}
+// Empty object schemas render as `{}` in compact form; anything with properties,
+// an index signature, or union members renders differently, so equality is a
+// conservative emptiness test for both Effect and JSON Schema inputs.
+export const isEmptyInput = <R>(tool: Tool<R>): boolean => inputTypeScript(tool) === "{}"

 export const outputTypeScript = <R>(tool: Tool<R>, pretty = false): string =>
  tool.output === undefined
@@ -298,18 +298,21 @@ const cases = [
  },
  {
    path: "test/built-ins/Array/prototype/keys/iteration.js",
-    code: `const it = ["a", "b", "c"].keys(); return [it.next(), it.next(), it.next(), it.next()]`,
-    expected: [{ value: 0, done: false }, { value: 1, done: false }, { value: 2, done: false }, { done: true }],
+    code: `return ["a", "b", "c"].keys()`,
+    expected: [0, 1, 2],
  },
  {
    path: "test/built-ins/Array/prototype/values/iteration.js",
-    code: `const it = ["a", "b", "c"].values(); return [it.next(), it.next(), it.next(), it.next()]`,
-    expected: [{ value: "a", done: false }, { value: "b", done: false }, { value: "c", done: false }, { done: true }],
+    code: `return ["a", "b", "c"].values()`,
+    expected: ["a", "b", "c"],
  },
  {
    path: "test/built-ins/Array/prototype/entries/iteration.js",
-    code: `const it = ["a", "b"].entries(); return [it.next(), it.next(), it.next()]`,
-    expected: [{ value: [0, "a"], done: false }, { value: [1, "b"], done: false }, { done: true }],
+    code: `return ["a", "b"].entries()`,
+    expected: [
+      [0, "a"],
+      [1, "b"],
+    ],
  },
  {
    path: "test/built-ins/Array/isArray/15.4.3.2-0-3.js",
@@ -22,16 +22,6 @@ describe("source syntax", () => {
 })

 describe("error identity", () => {
-  test("Error.isError is true for every Error value and nothing else", async () => {
-    expect(
-      await value(`
-        const caught = (() => { try { null.foo } catch (error) { return error } })()
-        return [Error.isError(new Error("x")), Error.isError(new RangeError("x")), Error.isError(caught),
-          Error.isError({ name: "Error", message: "x" }), Error.isError("Error"), Error.isError(null)]
-      `),
-    ).toEqual([true, true, true, false, false, false])
-  })
-
  test("awaiting the same rejected promise twice yields the same error object", async () => {
    expect(
      await value(`
@@ -105,24 +95,6 @@ describe("uncaught program throws", () => {
  })
 })

-describe("source locations", () => {
-  test("uses the submitted line and 1-based column", async () => {
-    const failure = await error("const value = 1\nreturn value()")
-    expect(failure.location).toEqual({ line: 2, column: 8 })
-    expect(failure.message).toBe("TypeError: value is not a function. (line 2, col 8)")
-  })
-
-  test("names a missing method on a call instead of the previous line", async () => {
-    const failure = await error(`// Try search with different namespaces
-for (const ns of ["github", "tools.github", "tools", ""]) {
-  const s = await search({query: "star", namespace: ns, limit: 100}).catch(e=>({items:[],error:String(e)}));
-  return s
-}`)
-    expect(failure.location).toEqual({ line: 3, column: 19 })
-    expect(failure.message).toBe("TypeError: search(...).catch is not a function. (line 3, col 19)")
-  })
-})
-
 describe("host errors escaping built-ins", () => {
  test("become the same-named program error", async () => {
    expect(
@@ -135,7 +107,7 @@ describe("host errors escaping built-ins", () => {
  test("report the location of the call that raised them", async () => {
    const failure = await error(`return [1].map((n) => n.toFixed(200))`)
    expect(failure.kind).toBe("ExecutionFailure")
-    expect(failure.message).toBe("RangeError: toFixed() argument must be between 0 and 100 (line 1, col 23)")
+    expect(failure.message).toBe("RangeError: toFixed() argument must be between 0 and 100 (line 1, col 19)")
  })

  test("a built-in that rejects its arguments before doing any work is located at the call", async () => {
@@ -143,13 +115,13 @@ describe("host errors escaping built-ins", () => {
  })

  test("a rejection born inside a promise the built-in created is located at the creating call", async () => {
-    expect((await error(`return await Promise.all(1)`)).message).toEndWith("(line 1, col 14)")
-    expect((await error(`return await Promise.race([])`)).message).toEndWith("(line 1, col 14)")
+    expect((await error(`return await Promise.all(1)`)).message).toEndWith("(line 1, col 10)")
+    expect((await error(`return await Promise.race([])`)).message).toEndWith("(line 1, col 10)")
    expect((await error(`return await Promise.all({ [Symbol.iterator]: () => ({ next: 1 }) })`)).message).toEndWith(
-      "(line 1, col 14)",
+      "(line 1, col 10)",
    )
    expect((await error(`let p; p = Promise.resolve().then(() => p); return await p`)).message).toEndWith(
-      "(line 1, col 12)",
+      "(line 1, col 8)",
    )
  })

@@ -162,7 +134,7 @@ describe("host errors escaping built-ins", () => {

  test("a failure inside a built-in called by another built-in is located at the outer call", async () => {
    const failure = await error(`return Array.from({ [Symbol.iterator]: () => ({ next: 1 }) })`)
-    expect(failure.message).toBe("TypeError: Iterator next must be a function. (line 1, col 8)")
+    expect(failure.message).toBe("TypeError: Iterator next must be a function. (line 1, col 4)")
  })
 })

@@ -181,7 +153,7 @@ describe("call depth", () => {
  test("uncaught overflow reports the call that overflowed", async () => {
    const failure = await error(`const f = (n) => f(n + 1); return f(0)`)
    expect(failure.kind).toBe("ExecutionFailure")
-    expect(failure.message).toBe("RangeError: Maximum call stack size exceeded (line 1, col 18)")
+    expect(failure.message).toBe("RangeError: Maximum call stack size exceeded (line 1, col 14)")
  })

  test("the limit is 10000 nested calls", async () => {
@@ -220,9 +220,8 @@ describe("values are converted at the boundary, never shared", () => {
    expect(held[1]).toBeInstanceOf(Error)
  })

-  test("functions, promises, iterators, and symbols cannot be passed in", async () => {
+  test("functions, promises, and symbols cannot be passed in", async () => {
    expect((await failure(`keep(() => 1)`)).message).toContain("Argument 1 to keep contains a function")
-    expect((await failure(`keep([1].keys())`)).message).toContain("Argument 1 to keep contains an iterator")
    expect((await failure(`keep(later(1))`)).message).toContain("un-awaited Promise")
    expect((await failure(`keep(Symbol.iterator)`)).message).toContain("Argument 1 to keep contains a symbol")
  })
@@ -122,10 +122,10 @@ describe("Map.groupBy Test262 parity", () => {
          grouped.get(1),
          grouped.get("1"),
          grouped.has(stringable),
-          [...grouped.keys()].length,
+          grouped.keys().length,
          parity.get("even"),
          parity.get("odd"),
-          [...lengths.keys()],
+          lengths.keys(),
          lengths.get(5),
          lengths.get(4),
        ]
@@ -162,7 +162,7 @@ describe("Map.groupBy Test262 parity", () => {
      await value(`
        const grouped = Map.groupBy("🥰💩🙏😈", (char) => char < "🙏" ? "before" : "after")
        const empty = Map.groupBy([], () => { throw new Error("not called") })
-        return [[...grouped.keys()], grouped.get("before"), grouped.get("after"), empty.size]
+        return [grouped.keys(), grouped.get("before"), grouped.get("after"), empty.size]
      `),
    ).toEqual([["after", "before"], ["💩", "😈"], ["🥰", "🙏"], 0])
  })
@@ -502,15 +502,9 @@ describe("CodeMode-specific array behavior", () => {
    expect(err.message).toContain("circular")
  })

-  test("indexOf and lastIndexOf with no argument search for undefined", async () => {
-    expect(await value(`return [1, undefined, 3].indexOf()`)).toBe(1)
-    expect(await value(`return [1, undefined, 3].lastIndexOf()`)).toBe(1)
-    expect(await value(`return [1, 2, 3].indexOf()`)).toBe(-1)
-  })
-
-  test("keys/values/entries return iterators usable with for...of and spread", async () => {
+  test("keys/values/entries return arrays usable with for...of and spread", async () => {
    expect(await value(`return [...["x","y","z"].keys()]`)).toEqual([0, 1, 2])
-    expect(await value(`return [...["x","y"].values()]`)).toEqual(["x", "y"])
+    expect(await value(`return ["x","y"].values()`)).toEqual(["x", "y"])
    expect(
      await value(`
      const out = []
@@ -946,12 +940,6 @@ describe("coercion parity: unknown static members read as undefined", () => {
    expect(await value(`try { JSON.rawJSON("1") } catch (e) { return e.message }`)).toBe(
      "JSON.rawJSON is not a function.",
    )
-    expect(await value(`try { search({ query: "star" }).catch(() => 1) } catch (e) { return e.message }`)).toBe(
-      "search(...).catch is not a function.",
-    )
-    expect(
-      await value(`const foo = () => ({ bar: () => ({}) }); try { foo().bar().baz() } catch (e) { return e.message }`),
-    ).toBe("foo(...).bar(...).baz is not a function.")
  })

  test("built-ins are objects on a real prototype chain", async () => {
@@ -973,17 +961,6 @@ describe("coercion parity: unknown static members read as undefined", () => {
  })
 })

-describe("async function line breaks", () => {
-  test("a line break between function and the name is an async function", async () => {
-    expect(await value(`async function\nfoo() { return 1 }\nreturn await foo()`)).toBe(1)
-  })
-
-  test("a line break between async and function is not an async function", async () => {
-    const failure = await error(`async\nfunction foo() { return 1 }\nreturn foo()`)
-    expect(failure.message).toContain("Unknown identifier 'async'")
-  })
-})
-
 describe("functions are objects", () => {
  test("name follows NamedEvaluation and length counts required parameters", async () => {
    expect(
@@ -198,10 +198,10 @@ describe("Set composition Test262 parity", () => {
          keys: () => [-0],
        }
        return [
-          1 / [...new Set([1]).union(setlike)][1] === Infinity,
-          1 / [...new Set([0, 1, 2]).intersection(setlike)][0] === Infinity,
+          1 / new Set([1]).union(setlike).values()[1] === Infinity,
+          1 / new Set([0, 1, 2]).intersection(setlike).values()[0] === Infinity,
          [...new Set([0, 1]).difference(setlike)],
-          1 / [...new Set([1, 2]).symmetricDifference(setlike)][2] === Infinity,
+          1 / new Set([1, 2]).symmetricDifference(setlike).values()[2] === Infinity,
        ]
      `),
    ).toEqual([true, true, [1], true])
@@ -20,9 +20,9 @@ import { CodeMode, Tool } from "../src/index.js"

 // Standard-library value types: Date, RegExp, Map, Set. Programs use them as ordinary JS;
 // intra-CodeMode checkpoints (Object.* helpers, spread, coercion inputs) preserve the live
-// values. JSON.stringify keeps Date -> ISO string (invalid -> null), URL -> href, and
-// RegExp/Map/Set/URLSearchParams -> {}. The host boundary matches that except URLSearchParams,
-// which cross as their query string, and Set, which crosses as an array.
+// values, while at the host boundary (final result, tool arguments, JSON.stringify) they
+// serialize exactly as JSON.stringify would: Date -> ISO string (invalid -> null),
+// URL -> href, and RegExp/Map/Set/URLSearchParams -> {}.
 const run = (code: string) => Effect.runPromise(CodeMode.execute({ code, tools: {} }))
 const value = async (code: string) => {
  const result = await run(code)
@@ -655,9 +655,9 @@ describe("Headers", () => {
          copied: [headers.get("content-type"), copy.get("content-type")],
          pairs: [...new Headers([["b", "2"], ["A", "1"]])],
          map: [...new Headers(new Map([["k", "v"]]))],
-          keys: [...headers.keys()],
-          values: [...headers.values()],
-          entries: [...headers.entries()],
+          keys: headers.keys(),
+          values: headers.values(),
+          entries: headers.entries(),
        }
      `),
    ).toEqual({
@@ -816,28 +816,18 @@ describe("Map", () => {
    expect((await error(`return new Map(["flat"])`)).message).toMatch(/\[key, value\] pairs/)
  })

-  test("keys/values/entries return live iterators", async () => {
+  test("keys/values/entries return arrays", async () => {
    expect(
      await value(`
      const m = new Map([["a", 1], ["b", 2]])
-      const keys = m.keys()
-      const first = keys.next()
-      m.set("c", 3)
-      return { first, rest: [...keys], values: [...m.values()], entries: [...m.entries()], same: [...m[Symbol.iterator]()] }
+      return { keys: m.keys(), values: m.values(), entries: m.entries() }
    `),
    ).toEqual({
-      first: { value: "a", done: false },
-      rest: ["b", "c"],
-      values: [1, 2, 3],
+      keys: ["a", "b"],
+      values: [1, 2],
      entries: [
        ["a", 1],
        ["b", 2],
-        ["c", 3],
-      ],
-      same: [
-        ["a", 1],
-        ["b", 2],
-        ["c", 3],
      ],
    })
  })
@@ -898,42 +888,6 @@ describe("Map", () => {
    ).toEqual({ a: 3, b: 1, c: 1 })
  })

-  test("getOrInsert and getOrInsertComputed insert only when the key is missing", async () => {
-    expect(
-      await value(`
-      const groups = new Map()
-      groups.getOrInsert("a", []).push(1)
-      groups.getOrInsert("a", []).push(2)
-      let calls = 0
-      const computed = (key) => { calls++; return key + "!" }
-      const first = groups.getOrInsertComputed("b", computed)
-      const second = groups.getOrInsertComputed("b", computed)
-      const zero = groups.getOrInsertComputed(-0, (key) => 1 / key === Infinity)
-      return [[...groups], first, second, calls, zero]
-    `),
-    ).toEqual([
-      [
-        ["a", [1, 2]],
-        ["b", "b!"],
-        [0, true],
-      ],
-      "b!",
-      "b!",
-      1,
-      true,
-    ])
-    expect(
-      await value(`
-      const m = new Map()
-      const outer = m.getOrInsertComputed("k", () => { m.set("k", "inner"); return "outer" })
-      let thrown
-      try { m.getOrInsertComputed("j", () => { throw new Error("boom") }) } catch (error) { thrown = error.message }
-      return [outer, m.get("k"), thrown, m.has("j")]
-    `),
-    ).toEqual(["outer", "outer", "boom", false])
-    expect((await error(`new Map().getOrInsertComputed("k", 5)`)).message).toContain("expects a function callback")
-  })
-
  test("maps serialize to {} at the boundary, like JSON", async () => {
    expect(await value(`return new Map([["a", 1]])`)).toEqual({})
    expect(await value(`return JSON.stringify(new Map([["a", 1]]))`)).toBe("{}")
@@ -1097,7 +1051,7 @@ describe("Uint8Array", () => {
      console.log(b, new Uint8Array())
      return [String(b), b + "", +new Uint8Array([5]), Number.isNaN(Number(b)), b == "1,2", JSON.stringify(b), b.toLocaleString(), typeof b, b instanceof Uint8Array]
    `),
-    ).toEqual(["1,2", "1,2", 5, true, true, '{"0":1,"1":2}', "1,2", "object", true])
+    ).toEqual(["1,2", "1,2", 5, true, true, '{"0":1,"1":2}', "[object Uint8Array]", "object", true])
    expect((await run(`console.log(new Uint8Array([1, 2]), new Uint8Array())`)).logs).toEqual([
      "Uint8Array(2) [1,2] Uint8Array(0) []",
    ])
@@ -1165,151 +1119,6 @@ describe("TextEncoder and TextDecoder", () => {
  })
 })

-describe("built-in iterators", () => {
-  test("keys/values/entries and [Symbol.iterator] step with next() and stay live", async () => {
-    expect(
-      await value(`
-        const items = ["a"]
-        const it = items.entries()
-        items.push("b")
-        const steps = [it.next(), it.next(), it.next()]
-        items.push("c")
-        return { steps, after: it.next(), same: items[Symbol.iterator] === items.values }
-      `),
-    ).toEqual({
-      steps: [{ value: [0, "a"], done: false }, { value: [1, "b"], done: false }, { done: true }],
-      after: { done: true },
-      same: true,
-    })
-    expect(
-      await value(`
-        const s = new Set([1, 2])
-        const u = new URLSearchParams("a=1&b=2")
-        const h = new Headers({ b: "2", a: "1" })
-        const bytes = new Uint8Array([7, 8])
-        return [
-          [...s.entries()], [...s[Symbol.iterator]()], s[Symbol.iterator] === s.values,
-          [...u.keys()], [...u[Symbol.iterator]()], u[Symbol.iterator] === u.entries,
-          [...h.values()], [...h[Symbol.iterator]()], h[Symbol.iterator] === h.entries,
-          [...bytes.entries()], [...bytes[Symbol.iterator]()], bytes[Symbol.iterator] === bytes.values,
-          [..."ab"[Symbol.iterator]()],
-        ]
-      `),
-    ).toEqual([
-      [
-        [1, 1],
-        [2, 2],
-      ],
-      [1, 2],
-      true,
-      ["a", "b"],
-      [
-        ["a", "1"],
-        ["b", "2"],
-      ],
-      true,
-      ["1", "2"],
-      [
-        ["a", "1"],
-        ["b", "2"],
-      ],
-      true,
-      [
-        [0, 7],
-        [1, 8],
-      ],
-      [7, 8],
-      true,
-      ["a", "b"],
-    ])
-  })
-
-  test("iterators are consumed once by every iteration site", async () => {
-    expect(
-      await value(`
-        const it = [1, 2, 3, 4].values()
-        const picked = []
-        for (const item of it) { picked.push(item); if (item === 2) break }
-        const [third] = it
-        return { picked, third, rest: [...it], spent: Array.from(it), again: it[Symbol.iterator]() === it }
-      `),
-    ).toEqual({ picked: [1, 2], third: 3, rest: [4], spent: [], again: true })
-    expect(
-      await value(`
-        const m = new Map([["a", 1], ["b", 2]])
-        return [
-          Object.fromEntries(m.entries()), Array.from(m.keys(), (k) => k + "!"), new Set(m.values()).size,
-          await Promise.all([Promise.resolve(1), 2].values()),
-        ]
-      `),
-    ).toEqual([{ a: 1, b: 2 }, ["a!", "b!"], 2, [1, 2]])
-    expect(await value(`let s = 0; for await (const v of [Promise.resolve(1), 2].values()) s += v; return s`)).toBe(3)
-    expect(
-      await value(`return new Set([1, 2]).union({ size: 1, has: () => false, keys: () => new Set([3]).keys() })`),
-    ).toEqual([1, 2, 3])
-  })
-
-  test("iterators are opaque references", async () => {
-    expect(await value(`return [1].keys()`)).toEqual({})
-    expect(await value(`return JSON.stringify({ it: [1].keys() })`)).toBe('{"it":{}}')
-    expect(await value(`return [typeof [1].keys(), Array.isArray([1].keys()), Object.keys([1].keys())]`)).toEqual([
-      "object",
-      false,
-      [],
-    ])
-    const logged = await run(`console.log([1].keys()); return null`)
-    expect(logged.logs?.[0]).toBe("[opaque reference]")
-    expect((await error(`return [1].keys() + ""`)).message).toContain("Binary operators require data values")
-    expect((await error(`return [1].keys().next.call({})`)).message).toContain("is not a function")
-    expect((await error(`const it = [1].keys(); const next = it.next; return next()`)).message).toContain(
-      "Iterator.prototype.next called on incompatible receiver undefined",
-    )
-  })
-})
-
-describe("toLocaleString", () => {
-  test("numbers and dates format as en-US in UTC; everything else falls back to toString", async () => {
-    expect(
-      await value(`
-      return [
-        (1234567.891).toLocaleString(), new Date(0).toLocaleString(), new Date(0).toLocaleDateString(),
-        new Date(0).toLocaleTimeString(), "a".toLocaleString(), true.toLocaleString(), ({}).toLocaleString(),
-        ({ toString: () => "custom" }).toLocaleString(), new Uint8Array([1, 2]).toLocaleString(),
-      ]
-    `),
-    ).toEqual([
-      "1,234,567.891",
-      "1/1/1970, 12:00:00 AM",
-      "1/1/1970",
-      "12:00:00 AM",
-      "a",
-      "true",
-      "[object Object]",
-      "custom",
-      "1,2",
-    ])
-  })
-
-  test("arrays join each element's toLocaleString, skipping holes and nullish elements", async () => {
-    expect(
-      await value(`
-      let calls = 0
-      const item = { toLocaleString() { calls++; return "o" } }
-      return [[1234.5, "x", null, undefined, item, new Date(0)].toLocaleString(), [, item, , item].toLocaleString(), calls]
-    `),
-    ).toEqual(["1,234.5,x,,,o,1/1/1970, 12:00:00 AM", ",o,,o", 3])
-    expect((await error(`const f = ({}).toLocaleString; f()`)).message).toContain(
-      "Object.prototype.toLocaleString called on null or undefined",
-    )
-  })
-
-  test("toLocaleLowerCase and toLocaleUpperCase ignore the locale argument", async () => {
-    expect(
-      await value(`return ["ABC".toLocaleLowerCase("tr"), "abc".toLocaleUpperCase(), "İ".toLocaleLowerCase()]`),
-    ).toEqual(["abc", "ABC", "i̇"])
-  })
-})
-
 describe("stdlib integration", () => {
  test("constructor follows own keys, shadowing, writes, and new", async () => {
    expect(
@@ -13,6 +13,8 @@ built-ins/Array/prototype/copyWithin/coerced-values-target.js  # Array.copyWithi
 built-ins/Array/prototype/copyWithin/return-abrupt-from-end.js  # Expected a Test262Error but got a TypeError
 built-ins/Array/prototype/copyWithin/return-abrupt-from-start.js  # Expected a Test262Error but got a TypeError
 built-ins/Array/prototype/copyWithin/return-abrupt-from-target.js  # Expected a Test262Error but got a TypeError
+built-ins/Array/prototype/entries/iteration-mutable.js  # .next is not a function.
+built-ins/Array/prototype/entries/iteration.js  # .next is not a function.
 built-ins/Array/prototype/every/15.4.4.16-7-6.js  # res Expected SameValue(«true», «false») to be true
 built-ins/Array/prototype/every/15.4.4.16-7-c-i-8.js  # [, , , ].every(callbackfn) Expected SameValue(«true», «false») to be true
 built-ins/Array/prototype/every/15.4.4.16-8-10.js  # … cannot be constructed: user-defined constructors and classes are not supported. Call it as a funct
@@ -84,6 +86,8 @@ built-ins/Array/prototype/join/S15.4.4.5_A3.1_T2.js  # Array.join expects zero a
 built-ins/Array/prototype/join/S15.4.4.5_A3.2_T2.js  # x.join() must return "*" Expected SameValue(«"[object Object]"», «"*"») to be true
 built-ins/Array/prototype/join/S15.4.4.5_A4_T3.js  # Array.prototype.join called on incompatible receiver a data object.
 built-ins/Array/prototype/join/S15.4.4.5_A5_T1.js  # #1: Array.prototype[1] = 1; x = [0]; x.length = 2; x.join() === "0,1". Actual: 0,
+built-ins/Array/prototype/keys/iteration-mutable.js  # .next is not a function.
+built-ins/Array/prototype/keys/iteration.js  # .next is not a function.
 built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-1.js  # Array.lastIndexOf expects start index to be a number.
 built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-15.js  # Array.lastIndexOf expects start index to be a number.
 built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-16.js  # Array.lastIndexOf expects start index to be a number.
@@ -225,6 +229,7 @@ built-ins/Array/prototype/splice/S15.4.4.12_A4_T1.js  # Array.prototype.splice c
 built-ins/Array/prototype/splice/S15.4.4.12_A4_T2.js  # Array.prototype.splice called on incompatible receiver a data object.
 built-ins/Array/prototype/splice/S15.4.4.12_A4_T3.js  # Array.prototype.splice called on incompatible receiver a data object.
 built-ins/Array/prototype/splice/create-ctor-non-object.js  # null value Expected a TypeError to be thrown but no exception was thrown at all
+built-ins/Array/prototype/toLocaleString/S15.4.4.3_A1_T1.js  # #1: var n = 0; var obj = {toLocaleString: function() {n++}}; var arr = [undefined, obj, null, obj, o
 built-ins/Array/prototype/toLocaleString/S15.4.4.3_A3_T1.js  # #1: var n = 0; var obj = {toLocaleString: function() {n++}}; Array.prototype[1] = obj; x = [obj]; x.
 built-ins/Array/prototype/toReversed/holes-not-preserved.js  # Actual [4, undefined, 2, undefined, 0] and expected [4, 3, 2, undefined, 0] should have the same con
 built-ins/Array/prototype/toSorted/holes-not-preserved.js  # Actual [1, 3, 4, undefined, undefined] and expected [1, 2, 3, 4, undefined] should have the same con
@@ -236,6 +241,9 @@ built-ins/Array/prototype/unshift/S15.4.4.13_A2_T3.js  # Array.prototype.unshift
 built-ins/Array/prototype/unshift/S15.4.4.13_A3_T2.js  # Array.prototype.unshift called on incompatible receiver a data object.
 built-ins/Array/prototype/unshift/S15.4.4.13_A4_T1.js  # Array.prototype.unshift called on incompatible receiver a data object.
 built-ins/Array/prototype/unshift/S15.4.4.13_A4_T2.js  # #3: Array.prototype[0] = 1; x = []; x.length = 1; x.unshift(0); x[1] === 1. Actual: undefined
+built-ins/Array/prototype/values/iteration-mutable.js  # .next is not a function.
+built-ins/Array/prototype/values/iteration.js  # .next is not a function.
+language/statements/async-function/rest-params-trailing-comma-early-error.js  # expected SyntaxError but the program ran
 language/statements/async-generator/dflt-params-abrupt.js  # Expected a Test262Error to be thrown but no exception was thrown at all
 language/statements/async-generator/dflt-params-ref-later.js  # Expected a ReferenceError to be thrown but no exception was thrown at all
 language/statements/async-generator/dflt-params-ref-self.js  # Expected a ReferenceError to be thrown but no exception was thrown at all
@@ -283,13 +291,16 @@ language/statements/async-generator/dstr/obj-ptrn-prop-id-init-throws.js  # Expe
 language/statements/async-generator/dstr/obj-ptrn-prop-id-init-unresolvable.js  # Expected a ReferenceError to be thrown but no exception was thrown at all
 language/statements/async-generator/dstr/obj-ptrn-prop-obj-value-null.js  # Expected a TypeError to be thrown but no exception was thrown at all
 language/statements/async-generator/dstr/obj-ptrn-prop-obj-value-undef.js  # Expected a TypeError to be thrown but no exception was thrown at all
+language/statements/async-generator/rest-params-trailing-comma-early-error.js  # expected SyntaxError but the program ran
 language/statements/async-generator/return-undefined-implicit-and-explicit.js  # Actual ["tick 1", "tick 2", "g1 ret", "g2 ret", "g3 ret", "g4 ret"] and expected ["tick 1", "g1 ret"
 language/statements/const/dstr/ary-init-iter-get-err-array-prototype.js  # Expected a TypeError to be thrown but no exception was thrown at all
+language/statements/for-await-of/async-func-decl-dstr-array-elem-init-in.js  # Failed to parse TypeScript: '…' expected.
 language/statements/for-await-of/async-func-decl-dstr-obj-empty-bool.js  # TypeError: Object destructuring requires a data object or array value, received a boolean.
 language/statements/for-await-of/async-func-decl-dstr-obj-empty-num.js  # TypeError: Object destructuring requires a data object or array value, received a number.
 language/statements/for-await-of/async-func-decl-dstr-obj-empty-string.js  # TypeError: Object destructuring requires a data object or array value, received a string.
 language/statements/for-await-of/async-func-decl-dstr-obj-rest-number.js  # TypeError: Object destructuring requires a data object or array value, received a number.
 language/statements/for-await-of/async-func-decl-dstr-obj-rest-str-val.js  # TypeError: Object destructuring requires a data object or array value, received a string.
+language/statements/for-await-of/async-gen-decl-dstr-array-elem-init-in.js  # Failed to parse TypeScript: '…' expected.
 language/statements/for-await-of/async-gen-decl-dstr-array-elem-iter-rtrn-close-null.js  # "Promise incorrectly fulfilled."
 language/statements/for-await-of/async-gen-decl-dstr-obj-empty-bool.js  # TypeError: Object destructuring requires a data object or array value, received a boolean.
 language/statements/for-await-of/async-gen-decl-dstr-obj-empty-num.js  # TypeError: Object destructuring requires a data object or array value, received a number.
@@ -297,6 +308,8 @@ language/statements/for-await-of/async-gen-decl-dstr-obj-empty-string.js  # Type
 language/statements/for-await-of/async-gen-decl-dstr-obj-rest-number.js  # TypeError: Object destructuring requires a data object or array value, received a number.
 language/statements/for-await-of/async-gen-decl-dstr-obj-rest-str-val.js  # TypeError: Object destructuring requires a data object or array value, received a string.
 language/statements/for-in/head-lhs-member.js  # Unsupported for...in binding.
+language/statements/for-of/Array.prototype.Symbol.iterator.js  # The called value is not a function.
+language/statements/for-of/dstr/array-elem-init-in.js  # Failed to parse TypeScript: '…' expected.
 language/statements/for-of/dstr/array-elem-iter-rtrn-close-err.js  # Iterator next must be a function.
 language/statements/for-of/dstr/array-elem-iter-rtrn-close-null.js  # Expected a TypeError to be thrown but no exception was thrown at all
 language/statements/for-of/dstr/array-elem-iter-thrw-close-err.js  # Expected SameValue(«1», «0») to be true
@@ -342,6 +355,7 @@ language/statements/function/S14_A5_T1.js  # Identifier '…' has already been d
 language/statements/function/S14_A5_T2.js  # Identifier '…' has already been declared.
 language/statements/function/dstr/ary-init-iter-get-err-array-prototype.js  # Expected a TypeError to be thrown but no exception was thrown at all
 language/statements/function/dstr/dflt-ary-init-iter-get-err-array-prototype.js  # Expected a TypeError to be thrown but no exception was thrown at all
+language/statements/function/rest-params-trailing-comma-early-error.js  # expected SyntaxError but the program ran
 language/statements/generators/dflt-params-abrupt.js  # Expected a Test262Error to be thrown but no exception was thrown at all
 language/statements/generators/dflt-params-ref-later.js  # Expected a ReferenceError to be thrown but no exception was thrown at all
 language/statements/generators/dflt-params-ref-self.js  # Expected a ReferenceError to be thrown but no exception was thrown at all
@@ -392,6 +406,8 @@ language/statements/generators/dstr/obj-ptrn-prop-obj-value-undef.js  # Expected
 language/statements/generators/has-instance.js  # The right-hand side of '…' has no '…' object.
 language/statements/generators/prototype-typeof.js  # Expected SameValue(«"undefined"», «"object"») to be true
 language/statements/generators/prototype-uniqueness.js  # Expected true but got false
+language/statements/generators/rest-params-trailing-comma-early-error.js  # expected SyntaxError but the program ran
+language/statements/labeled/value-await-non-module-escaped.js  # Failed to parse TypeScript: Keywords cannot contain escape characters.
 language/statements/labeled/value-await-non-module.js  # Failed to parse TypeScript: Expression expected.
 language/statements/let/dstr/ary-init-iter-get-err-array-prototype.js  # Expected a TypeError to be thrown but no exception was thrown at all
 language/statements/return/S12.9_A1_T1.js  # expected SyntaxError but the program ran
@@ -8,8 +8,8 @@
 * Copyright © web-platform-tests contributors. Governed by the 3-Clause BSD license in LICENSE.wpt.
 *
 * `assert_throws_dom("InvalidCharacterError", …)` becomes a check for a TypeError: CodeMode has no DOMException.
- * `checkIteratorProperties` (prototype chain and property descriptors) and the custom iterator on a Headers
- * instance are left out.
+ * Headers cases that need `Symbol.iterator`, iterator objects from `keys()`/`values()`/`entries()` (CodeMode returns
+ * arrays), or a custom iterator on a Headers instance are left out.
 */
 import { describe, expect, test } from "bun:test"
 import { Effect } from "effect"
@@ -253,64 +253,33 @@ describe("Headers WPT parity (fetch/api/headers)", () => {
        }).sort()
        test(function() {
          var headers = new Headers(headerEntriesDict)
-          var actual = headers.keys()
-          sortedHeaderKeys.forEach(function(key) {
-            const entry = actual.next()
-            assert_false(entry.done)
-            assert_equals(entry.value, key)
-          })
-          assert_true(actual.next().done)
-          assert_true(actual.next().done)
+          assert_array_equals(headers.keys(), sortedHeaderKeys)
          for (const key of headers.keys()) assert_true(sortedHeaderKeys.indexOf(key) != -1)
        }, "Check keys method")
        test(function() {
          var headers = new Headers(headerEntriesDict)
-          var actual = headers.values()
-          sortedHeaderKeys.forEach(function(key) {
-            const entry = actual.next()
-            assert_false(entry.done)
-            assert_equals(entry.value, sortedHeaderDict[key])
-          })
-          assert_true(actual.next().done)
-          assert_true(actual.next().done)
+          assert_array_equals(headers.values(), sortedHeaderKeys.map((key) => sortedHeaderDict[key]))
          for (const value of headers.values()) assert_true(headerValues.indexOf(value) != -1)
        }, "Check values method")
        test(function() {
          var headers = new Headers(headerEntriesDict)
-          var actual = headers.entries()
-          sortedHeaderKeys.forEach(function(key) {
-            const entry = actual.next()
-            assert_false(entry.done)
-            assert_equals(entry.value[0], key)
-            assert_equals(entry.value[1], sortedHeaderDict[key])
-          })
-          assert_true(actual.next().done)
-          assert_true(actual.next().done)
+          assert_array_equals(headers.entries(), sortedHeaderKeys.map((key) => [key, sortedHeaderDict[key]]))
          for (const entry of headers.entries()) assert_equals(entry[1], sortedHeaderDict[entry[0]])
        }, "Check entries method")
        test(function() {
          var headers = new Headers(headerEntriesDict)
-          var actual = headers[Symbol.iterator]()
-          sortedHeaderKeys.forEach(function(key) {
-            const entry = actual.next()
-            assert_false(entry.done)
-            assert_equals(entry.value[0], key)
-            assert_equals(entry.value[1], sortedHeaderDict[key])
-          })
-          assert_true(actual.next().done)
-          assert_true(actual.next().done)
+          assert_array_equals([...headers], sortedHeaderKeys.map((key) => [key, sortedHeaderDict[key]]))
        }, "Check Symbol.iterator method")
        test(function() {
          var headers = new Headers(headerEntriesDict)
-          var reference = sortedHeaderKeys[Symbol.iterator]()
+          var index = 0
          headers.forEach(function(value, key, container) {
            assert_equals(headers, container)
-            const entry = reference.next()
-            assert_false(entry.done)
-            assert_equals(key, entry.value)
-            assert_equals(value, sortedHeaderDict[entry.value])
+            assert_equals(key, sortedHeaderKeys[index])
+            assert_equals(value, sortedHeaderDict[sortedHeaderKeys[index]])
+            index++
          })
-          assert_true(reference.next().done)
+          assert_equals(index, sortedHeaderKeys.length)
        }, "Check forEach method")
        test(() => {
          const headers = new Headers({"foo": "2", "baz": "1", "BAR": "0"})
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/console-app",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "type": "module",
  "license": "MIT",
  "scripts": {
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/console-core",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "private": true,
  "type": "module",
  "license": "MIT",
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/console-function",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "$schema": "https://json.schemastore.org/package.json",
  "private": true,
  "type": "module",
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/console-mail",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "dependencies": {
    "@jsx-email/all": "2.2.3",
    "@jsx-email/cli": "1.4.3",
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/console-support",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "type": "module",
  "license": "MIT",
  "scripts": {
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.11",
+  "version": "2.0.10",
  "name": "@opencode/core",
  "type": "module",
  "license": "MIT",
@@ -98,8 +98,7 @@
    "@types/bun": "catalog:",
    "@types/node": "catalog:",
    "@types/which": "3.0.4",
-    "drizzle-kit": "catalog:",
-    "fast-check": "catalog:"
+    "drizzle-kit": "catalog:"
  },
  "dependencies": {
    "@ai-sdk/cohere": "3.0.27",
@@ -99,7 +99,7 @@ export const layer = (options?: Options) =>
      const wellknown = yield* WellKnown.Service
      const reloadLock = Semaphore.makeUnsafe(1)
      const updateLock = Semaphore.makeUnsafe(1)
-      const decodeOptions = { errors: "all", onExcessProperty: "ignore" } as const
+      const decodeOptions = { errors: "all", onExcessProperty: "ignore", propertyOrder: "original" } as const
      const decodeInfo = Schema.decodeUnknownOption(Info, decodeOptions)
      const parseInfo = Effect.fn("Config.parseInfo")(function* (text: string, source: string) {
        const errors: ParseError[] = []
@@ -330,8 +330,7 @@ export const layer = (options?: Options) =>
        function* (patch: Patch) {
          const directory = initial.global ?? AbsolutePath.make(globalService.config)
          const candidates = ConfigDiscovery.names.map((name) => path.join(directory, name))
-          const filepath =
-            (yield* Effect.filter(candidates, fs.isFile)).at(-1) ?? path.join(directory, "opencode.jsonc")
+          const filepath = (yield* Effect.filter(candidates, fs.isFile)).at(-1) ?? path.join(directory, "opencode.jsonc")
          const text = (yield* fs.readFileStringSafe(filepath)) ?? "{}\n"
          const updated = yield* Effect.try({
            try: () =>
@@ -42,7 +42,7 @@ export type Result =
    }
  | { readonly type: "rejected"; readonly diagnostics: readonly Diagnostic[] }

-const options = { errors: "all", onExcessProperty: "ignore" } as const
+const options = { errors: "all", onExcessProperty: "ignore", propertyOrder: "original" } as const
 const unsupportedTopLevel = ["logLevel", "server", "subagent_depth", "layout"] as const
 const unsupportedExperimental = [
  "disable_paste_summary",
@@ -196,11 +196,11 @@ function decode(file: { directory: string; filepath: string; primary: boolean },
  const agent = legacy
    ? Option.getOrUndefined(
        Option.map(
-          decodeLegacyAgent({ name, ...markdown.data, prompt: body }, { errors: "all" }),
+          decodeLegacyAgent({ name, ...markdown.data, prompt: body }, { errors: "all", propertyOrder: "original" }),
          ConfigMigrateV1.migrateAgent,
        ),
      )
-    : Option.getOrUndefined(decodeAgent({ ...data, system: body }, { errors: "all" }))
+    : Option.getOrUndefined(decodeAgent({ ...data, system: body }, { errors: "all", propertyOrder: "original" }))
  if (!agent) return
  const info = Option.getOrUndefined(
    decodeConfig({
@@ -48,9 +48,10 @@ const proxy = (value: string, environment: Environment = process.env) => {
  )
 }

-const constructorOptions = (input: Socket.WebSocketConstructorOptions | undefined): WebSocketOptions => {
+const constructorOptions = (input: string | Array<string> | undefined): WebSocketOptions => {
  if (typeof input === "string" || Array.isArray(input)) return { protocols: input }
-  return { headers: input?.headers === undefined ? undefined : Headers.fromInput(input.headers) }
+  // AI routes pass handshake options through Effect's browser-shaped constructor.
+  return (input ?? {}) as WebSocketOptions
 }

 const proxyAgent = (url: string, selectedProxy: string | undefined) => {
@@ -57,19 +57,16 @@ export const ModelsDevPlugin = define({
        })
      }
    })
-    const apply = (data: readonly ModelsDev.Snapshot[]) => {
-      loaded.data = snapshots(data)
-      return ctx.integration.reload().pipe(Effect.andThen(ctx.provider.reload()))
-    }
    yield* bus.subscribe(ModelsDev.Event.Refreshed).pipe(
-      Stream.runForEach(() => modelsDev.get().pipe(Effect.flatMap(apply))),
+      Stream.runForEach(() =>
+        modelsDev.get().pipe(
+          Effect.tap((data) => Effect.sync(() => (loaded.data = snapshots(data)))),
+          Effect.andThen(ctx.integration.reload()),
+          Effect.andThen(ctx.provider.reload()),
+        ),
+      ),
      Effect.forkScoped({ startImmediately: true }),
    )
-    // A refresh that landed between the initial read and the subscription above published
-    // Refreshed to nobody here. On a cold cache that read served the bundled snapshot, so
-    // re-read now instead of waiting for the next TTL refresh.
-    const latest = yield* modelsDev.get()
-    if (snapshots(latest) !== loaded.data) yield* apply(latest)
  }),
 })

@@ -170,6 +170,10 @@ export interface Interface {
  readonly switchAgent: (input: { sessionID: SessionSchema.ID; agent: Agent.ID }) => Effect.Effect<void, NotFoundError>
  readonly switchModel: (input: { sessionID: SessionSchema.ID; model: Model.Ref }) => Effect.Effect<void, NotFoundError>
  readonly rename: (input: { sessionID: SessionSchema.ID; title: string }) => Effect.Effect<void, NotFoundError>
+  readonly setMetadata: (input: {
+    sessionID: SessionSchema.ID
+    metadata: SessionSchema.Metadata
+  }) => Effect.Effect<void, NotFoundError>
  readonly setPermissions: (input: {
    sessionID: SessionSchema.ID
    permissions: Permission.Ruleset
@@ -417,6 +421,7 @@ const layer = Layer.effect(
      switchAgent: (input) => sessions.forSession(input.sessionID).switchAgent(input),
      switchModel: (input) => sessions.forSession(input.sessionID).switchModel(input),
      rename: (input) => sessions.forSession(input.sessionID).rename(input),
+      setMetadata: (input) => sessions.forSession(input.sessionID).setMetadata(input),
      setPermissions: (input) => sessions.forSession(input.sessionID).setPermissions(input),
      move: moves.move,
      compact: (input) => sessions.forSession(input.sessionID).compact(input),
@@ -131,6 +131,7 @@ export function update(adapter: Adapter, event: SessionEvent.DurableEvent) {
          )
        }),
      "session.renamed": () => Effect.void,
+      "session.metadata.updated": () => Effect.void,
      "session.permissions": () => Effect.void,
      "session.deleted": () => Effect.void,
      "session.forked": () => Effect.void,
@@ -20,10 +20,9 @@ import { SessionSchema } from "./schema.js"
 import { webSocketConstructor } from "../effect/app-node-platform.js"

 const ROTATE_AFTER_MS = 55 * 60 * 1000
-const CONNECT_TIMEOUT = "15 seconds"
+const INBOUND_CAPACITY = 128
+const CONNECT_TIMEOUT = "10 seconds"
 const IDLE_TIMEOUT = "5 minutes"
-/** Consecutive exchanges lost to the socket before the Session stays on HTTP. */
-const MAX_STREAM_FAILURES = 5
 const events = Metric.counter("opencode_session_websocket_events_total", {
  description: "Session WebSocket lifecycle events",
  incremental: true,
@@ -51,7 +50,6 @@ interface State {
  readonly lock: Semaphore.Semaphore
  closed: boolean
  httpFallback: boolean
-  streamFailures: number
  channel?: Channel
 }

@@ -128,7 +126,7 @@ export const makeLayer = (connector: WebSocketConnector) =>
      const state = (sessionID: SessionSchema.ID) => {
        const current = states.get(sessionID)
        if (current) return current
-        const created = { lock: Semaphore.makeUnsafe(1), closed: false, httpFallback: false, streamFailures: 0 }
+        const created = { lock: Semaphore.makeUnsafe(1), closed: false, httpFallback: false }
        states.set(sessionID, created)
        return created
      }
@@ -170,27 +168,15 @@ export const makeLayer = (connector: WebSocketConnector) =>
          code: error.reason._tag === "Transport" ? error.reason.code : error.reason._tag,
          active: channel.active !== undefined,
        })
-        if (channel.active) {
-          Queue.failCauseUnsafe(channel.active.queue, Cause.fail(error))
-          yield* streamFailure(owner)
-        }
-        yield* metric("protocol_failure")
+        if (channel.active) Queue.failCauseUnsafe(channel.active.queue, Cause.fail(error))
+        yield* metric(
+          error.reason._tag === "Transport" && error.reason.code === "queue-overflow"
+            ? "queue_overflow"
+            : "protocol_failure",
+        )
        yield* channel.connection.close
      })

-      // A socket that keeps dying mid-exchange costs a retry every step; after enough consecutive
-      // losses the Session stays on HTTP.
-      const streamFailure = Effect.fn("SessionModelTransport.streamFailure")(function* (owner: State) {
-        owner.streamFailures++
-        if (owner.streamFailures < MAX_STREAM_FAILURES) return
-        owner.httpFallback = true
-        yield* Effect.logWarning("session websocket failed repeatedly; using http", {
-          sessionTransport: "websocket",
-          failures: owner.streamFailures,
-        })
-        yield* metric("fallback", { reason: "stream_failures" })
-      })
-
      const open = Effect.fn("SessionModelTransport.open")(function* (
        owner: State,
        exchange: WebSocketChannelExchange,
@@ -249,7 +235,14 @@ export const makeLayer = (connector: WebSocketConnector) =>
                      code: "message",
                      phase: "receive",
                    })
-                  Queue.offerUnsafe(active.queue, message)
+                  if (Queue.offerUnsafe(active.queue, message)) return undefined
+                  return yield* transportError("Session WebSocket inbound queue overflow", {
+                    url: exchange.connect.url,
+                    operation: "read",
+                    code: "queue-overflow",
+                    phase: "receive",
+                    delivery: "accepted",
+                  })
                }),
              ),
              Effect.catch((error) =>
@@ -262,7 +255,9 @@ export const makeLayer = (connector: WebSocketConnector) =>
                        phase:
                          error.reason._tag === "Transport" && error.reason.phase === "close" ? "close" : "receive",
                        delivery:
-                          channel.active?.delivery === "provider-observed" || channel.active?.delivery === "terminal"
+                          channel.active?.delivery === "provider-observed" ||
+                          channel.active?.delivery === "terminal" ||
+                          (error.reason._tag === "Transport" && error.reason.code === "queue-overflow")
                            ? "accepted"
                            : error.reason._tag === "Transport" && error.reason.code === "1009"
                              ? "rejected"
@@ -375,7 +370,7 @@ export const makeLayer = (connector: WebSocketConnector) =>
          mode: create.mode,
        })
        const active: Active = {
-          queue: yield* Queue.unbounded<string, AIError>(),
+          queue: yield* Queue.bounded<string, AIError>(INBOUND_CAPACITY),
          delivery: "send-attempted",
        }
        channel.active = active
@@ -400,7 +395,6 @@ export const makeLayer = (connector: WebSocketConnector) =>
            return fallback(exchange)
          }
          yield* metric("ambiguous_delivery")
-          yield* streamFailure(owner)
          return yield* annotate(failure, { phase: "send", delivery: "ambiguous" })
        }
        yield* metric("send")
@@ -441,7 +435,6 @@ export const makeLayer = (connector: WebSocketConnector) =>
              const pending = yield* Queue.size(active.queue)
              yield* Queue.shutdown(active.queue)
              if (terminal && pending === 0) {
-                owner.streamFailures = 0
                yield* metric("terminal", { type: terminal.type })
                if (terminal.type === "rejected") yield* metric("rejection", { recovery: terminal.recovery })
                // The Codex backend stops serving a connection after any error frame: the next request is
@@ -573,6 +573,14 @@ const layer = Layer.effectDiscard(
        .run()
        .pipe(Effect.orDie),
    )
+    yield* bus.project(SessionEvent.MetadataUpdated, (event) =>
+      db
+        .update(SessionTable)
+        .set({ metadata: event.data.metadata, time_updated: event.created })
+        .where(eq(SessionTable.id, event.data.sessionID))
+        .run()
+        .pipe(Effect.orDie),
+    )
    yield* bus.project(SessionEvent.Permissions, (event) =>
      db
        .update(SessionTable)
@@ -73,6 +73,13 @@ export const make = Effect.fn("Session.make")(function* () {
    yield* get(sessionID)
    yield* bus.publish(SessionEvent.Renamed, { sessionID, title: input.title })
  })
+  const setMetadata = Effect.fn("Session.setMetadata")(function* (
+    sessionID: SessionSchema.ID,
+    input: { metadata: SessionSchema.Metadata },
+  ) {
+    yield* get(sessionID)
+    yield* bus.publish(SessionEvent.MetadataUpdated, { sessionID, metadata: input.metadata })
+  })
  const setPermissions = Effect.fn("Session.setPermissions")(function* (
    sessionID: SessionSchema.ID,
    input: { permissions: Permission.Ruleset },
@@ -342,6 +349,7 @@ export const make = Effect.fn("Session.make")(function* () {
    message,
    view,
    rename,
+    setMetadata,
    setPermissions,
    switchAgent,
    switchModel,
@@ -365,6 +373,7 @@ export const make = Effect.fn("Session.make")(function* () {
    const message = operations.message.bind(undefined, sessionID)
    const view = operations.view.bind(undefined, sessionID)
    const rename = operations.rename.bind(undefined, sessionID)
+    const setMetadata = operations.setMetadata.bind(undefined, sessionID)
    const setPermissions = operations.setPermissions.bind(undefined, sessionID)
    const switchAgent = operations.switchAgent.bind(undefined, sessionID)
    const switchModel = operations.switchModel.bind(undefined, sessionID)
@@ -391,6 +400,7 @@ export const make = Effect.fn("Session.make")(function* () {
      message,
      view,
      rename,
+      setMetadata,
      setPermissions,
      switchAgent,
      switchModel,
@@ -170,7 +170,7 @@ const standardJsonSchema = (schema: StandardSchemaV1<any, any>, io: "input" | "o
 }

 const toJsonSchema = (schema: Schema.Top): JsonSchema.JsonSchema => {
-  const document = Schema.toJsonSchemaDocument(schema, { onExcessProperty: "error" })
+  const document = Schema.toJsonSchemaDocument(schema)
  // Effect emits valid JSON Schema that some inference providers handle poorly. Simplify it
  // without changing validation: `{ type: "integer", allOf: [{ minimum: 0 }] }` becomes
  // `{ type: "integer", minimum: 0 }` only when no keyword would be overwritten. Named schemas
@@ -13,7 +13,7 @@ import { ConfigProviderOptionsV1 } from "./provider-options.js"
 import { Provider } from "../../provider.js"
 import { Model } from "../../model.js"

-const decodeOptions = { errors: "all", onExcessProperty: "ignore" } as const
+const decodeOptions = { errors: "all", onExcessProperty: "ignore", propertyOrder: "original" } as const
 const decodeInfo = Schema.decodeUnknownSync(Schema.fromJsonString(Info), decodeOptions)
 const encodeInfo = Schema.encodeSync(Info)
 const decodeAgent = Schema.decodeUnknownSync(Schema.fromJsonString(ConfigAgent.Info), decodeOptions)
@@ -11,8 +11,9 @@ export type Object = Schema.Schema.Type<typeof Object>
 export const Rule = Schema.Union([Action, Object]).annotate({ identifier: "PermissionRuleConfig" })
 export type Rule = Schema.Schema.Type<typeof Rule>

-// Known permission keys get explicit types in the Effect schema for generated docs/types.
-// StructWithRest also accepts custom permission names.
+// Known permission keys get explicit types in the Effect schema for generated
+// docs/types. Runtime config parsing uses Effect's `propertyOrder: "original"`
+// parse option so user key order is preserved for permission precedence.
 const InputObject = Schema.StructWithRest(
  Schema.Struct({
    read: Schema.optional(Rule),
@@ -27,7 +27,6 @@ export function resolve(model: Model.Info, supports: readonly Support[] = [{ typ
 const EFFORTS = ["low", "medium", "high"]
 const ENCRYPTED_REASONING = ["reasoning.encrypted_content"]
 const ADAPTIVE_THINKING = { type: "adaptive", display: "summarized" }
-const ANTHROPIC_OUTPUT_TOKEN_MAX = 32_000

 const variant = (id: string, overlay: Overlay): Variants[number] => ({ id: Model.VariantID.make(id), ...overlay })

@@ -40,9 +39,8 @@ function budgets(
  model: Model.Info,
  support: Extract<Support, { type: "budget_tokens" }>,
  spell: (tokens: number) => Overlay,
-  ceiling = model.limit.output,
 ): Variants {
-  const maximum = Math.min(support.max ?? ceiling - 1, model.limit.output - 1, ceiling - 1)
+  const maximum = Math.min(support.max ?? model.limit.output - 1, model.limit.output - 1)
  if (maximum <= 0) return []
  const high = Math.min(Math.max(support.min ?? 0, Math.floor((maximum + 1) / 2)), maximum)
  return [variant("high", spell(high)), variant("max", spell(maximum))]
@@ -275,12 +273,9 @@ const anthropicMessages: Protocol = (model, support) => {
      return toggle({ settings: { thinking: { type: "disabled" } } }, thinking)
    }
    case "budget_tokens":
-      return budgets(
-        model,
-        support,
-        (tokens) => ({ settings: { thinking: { type: "enabled", budgetTokens: tokens } } }),
-        ANTHROPIC_OUTPUT_TOKEN_MAX,
-      )
+      return budgets(model, support, (tokens) => ({
+        settings: { thinking: { type: "enabled", budgetTokens: tokens } },
+      }))
  }
 }

@@ -386,14 +381,10 @@ const bedrockConverse: Protocol = (model, support) => {
        ? toggle(fields({ thinking: { type: "disabled" } }), fields({ thinking: ADAPTIVE_THINKING }))
        : toggle(fields({ reasoningConfig: { type: "disabled" } }), fields({ reasoningConfig: { type: "enabled" } }))
    case "budget_tokens":
-      return budgets(
-        model,
-        support,
-        (tokens) =>
-          claude
-            ? fields({ thinking: { type: "enabled", budget_tokens: tokens } })
-            : fields({ reasoningConfig: { type: "enabled", budgetTokens: tokens } }),
-        claude ? ANTHROPIC_OUTPUT_TOKEN_MAX : model.limit.output,
+      return budgets(model, support, (tokens) =>
+        claude
+          ? fields({ thinking: { type: "enabled", budget_tokens: tokens } })
+          : fields({ reasoningConfig: { type: "enabled", budgetTokens: tokens } }),
      )
  }
 }
@@ -445,12 +436,9 @@ const bedrockAISDK: Protocol = (model, support) => {
            { settings: { additionalModelRequestFields: { reasoningConfig: { type: "enabled" } } } },
          )
    case "budget_tokens":
-      return budgets(
-        model,
-        support,
-        (tokens) => ({ settings: { reasoningConfig: { type: "enabled", budgetTokens: tokens } } }),
-        claude ? ANTHROPIC_OUTPUT_TOKEN_MAX : model.limit.output,
-      )
+      return budgets(model, support, (tokens) => ({
+        settings: { reasoningConfig: { type: "enabled", budgetTokens: tokens } },
+      }))
  }
 }

@@ -501,11 +489,8 @@ const sapAICore: Protocol = (model, support) => {
      return []
    case "budget_tokens":
      if (id.includes("anthropic"))
-        return budgets(
-          model,
-          support,
-          (tokens) => sap({ additionalModelRequestFields: { thinking: { type: "enabled", budget_tokens: tokens } } }),
-          ANTHROPIC_OUTPUT_TOKEN_MAX,
+        return budgets(model, support, (tokens) =>
+          sap({ additionalModelRequestFields: { thinking: { type: "enabled", budget_tokens: tokens } } }),
        )
      if (id.includes("gemini"))
        return budgets(model, support, (tokens) =>
@@ -2,7 +2,7 @@ import path from "path"
 import fs from "fs/promises"
 import { describe, expect, test } from "bun:test"
 import { Effect, Fiber, Layer, Logger, Schema, Stream } from "effect"
-import { Arbitrary } from "effect/unstable/arbitrary"
+import { FastCheck } from "effect/testing"
 import { Config } from "@opencode/core/config"
 import { Directory, Document, Event, Info } from "@opencode/schema/config"
 import { ConfigModel } from "@opencode/schema/config/model"
@@ -632,22 +632,17 @@ describe("Config", () => {
  })

  test("migrates arbitrary v1 configuration into valid v2 configuration", () => {
-    const result = Effect.runSync(
-      Arbitrary.checkEffect(
-        Arbitrary.schema(ConfigV1.Info),
-        (info) => {
-          const parsed = Schema.decodeUnknownSync(ConfigV1.Info)(
-            Schema.decodeUnknownSync(Schema.fromJsonString(Schema.Unknown))(
-              Schema.encodeUnknownSync(Schema.fromJsonString(Schema.Unknown))(info),
-            ),
-          )
-          Schema.decodeUnknownSync(Info)(ConfigMigrateV1.migrate(parsed), { errors: "all" })
-          return true
-        },
-        { runs: 100 },
-      ),
+    FastCheck.assert(
+      FastCheck.property(Schema.toArbitrary(ConfigV1.Info)(FastCheck), (info) => {
+        const parsed = Schema.decodeUnknownSync(ConfigV1.Info)(
+          Schema.decodeUnknownSync(Schema.fromJsonString(Schema.Unknown))(
+            Schema.encodeUnknownSync(Schema.fromJsonString(Schema.Unknown))(info),
+          ),
+        )
+        Schema.decodeUnknownSync(Info)(ConfigMigrateV1.migrate(parsed), { errors: "all" })
+      }),
+      { numRuns: 100 },
    )
-    expect(Arbitrary.formatCheckFailure(result)).toBeUndefined()
  }, 30_000)

  test("migrates the v1 experimental subagent depth", () => {
@@ -1,10 +1,10 @@
 import { describe, expect, test } from "bun:test"
-import { Duration, Effect, Schema } from "effect"
-import { Arbitrary } from "effect/unstable/arbitrary"
+import { Duration, Schema } from "effect"
+import { FastCheck } from "effect/testing"
 import { ConfigNormalize } from "@opencode/core/config/normalize"
 import { Info } from "@opencode/schema/config"

-const options = { errors: "all", onExcessProperty: "ignore" } as const
+const options = { errors: "all", onExcessProperty: "ignore", propertyOrder: "original" } as const

 function normalized(input: unknown) {
  const result = ConfigNormalize.normalize(input)
@@ -80,21 +80,16 @@ describe("ConfigNormalize", () => {
  })

  test("preserves arbitrary JSON-round-tripped native configuration", () => {
-    const result = Effect.runSync(
-      Arbitrary.checkEffect(
-        Arbitrary.schema(Info),
-        (info) => {
-          const source = JSON.parse(JSON.stringify(Schema.encodeSync(Info)(info)))
-          const result = normalized(source)
-          expect(Schema.decodeUnknownSync(Info)(result.encoded)).toEqual(
-            Schema.decodeUnknownSync(Info)(withoutEmptyCompatibilityContainers(source)),
-          )
-          return true
-        },
-        { runs: 100 },
-      ),
+    FastCheck.assert(
+      FastCheck.property(Schema.toArbitrary(Info)(FastCheck), (info) => {
+        const source = JSON.parse(JSON.stringify(Schema.encodeSync(Info)(info)))
+        const result = normalized(source)
+        expect(Schema.decodeUnknownSync(Info)(result.encoded)).toEqual(
+          Schema.decodeUnknownSync(Info)(withoutEmptyCompatibilityContainers(source)),
+        )
+      }),
+      { numRuns: 100 },
    )
-    expect(Arbitrary.formatCheckFailure(result)).toBeUndefined()
  })

  test("merges named maps by entry and gives valid native entries precedence", () => {
@@ -290,37 +290,6 @@ describe("ModelsDevPlugin", () => {
    }),
  )

-  isolated.effect("adopts a refresh that completes between its initial read and its subscription", () =>
-    Effect.gen(function* () {
-      const bundled = richSnapshot("Acme Bundled")
-      const fresh = richSnapshot("Acme Fresh")
-      const current = { snapshot: bundled.snapshot }
-      const location = yield* owner
-      // Cold cache: the first read serves the bundled snapshot, and the boot-time
-      // ModelsDev.refresh() lands right after it, before the plugin subscribes.
-      const source = ModelsDev.Service.of({
-        get: () =>
-          Effect.gen(function* () {
-            const data = current.snapshot
-            if (data !== bundled.snapshot) return data
-            current.snapshot = fresh.snapshot
-            yield* location.bus.publish(ModelsDev.Event.Refreshed, {})
-            return data
-          }),
-        refresh: () => Effect.void,
-      })
-      yield* ModelsDevPlugin.effect(location.host).pipe(
-        Effect.provideService(ModelsDev.Service, source),
-        Effect.provideContext(location.context),
-      )
-      yield* TestClock.adjust("500 millis")
-      yield* TestClock.adjust("500 millis")
-      yield* TestClock.adjust("500 millis")
-
-      expect(required(yield* location.providers.get(bundled.providerID)).name).toBe("Acme Fresh")
-    }),
-  )
-
  real.effect("keeps the retained definition unchanged across model replay", () =>
    Effect.gen(function* () {
      const providers = yield* Provider.Service
@@ -1018,11 +987,11 @@ describe("ModelsDevPlugin", () => {
      const budgetModel = yield* modelState.get(Provider.ID.anthropic, Model.ID.make("claude-budget"))
      expect(budgetModel?.variants).toContainEqual({
        id: Model.VariantID.make("high"),
-        settings: { thinking: { type: "enabled", budgetTokens: 16000 } },
+        settings: { thinking: { type: "enabled", budgetTokens: 32000 } },
      })
      expect(budgetModel?.variants).toContainEqual({
        id: Model.VariantID.make("max"),
-        settings: { thinking: { type: "enabled", budgetTokens: 31999 } },
+        settings: { thinking: { type: "enabled", budgetTokens: 63999 } },
      })

      const anthropicEffortModel = yield* modelState.get(Provider.ID.anthropic, Model.ID.make("claude-opus-4.7"))
@@ -1,55 +0,0 @@
-import { expect } from "bun:test"
-import { Agent } from "@opencode/core/agent"
-import { Plugin } from "@opencode/core/plugin"
-import { PluginHost } from "@opencode/core/plugin/host"
-import { PluginPromise } from "@opencode/core/plugin/promise"
-import { Tool } from "@opencode/core/tool"
-import { Session } from "@opencode/schema/session"
-import { SessionMessage } from "@opencode/schema/session-message"
-import { Cause, Deferred, Effect, Exit, Fiber } from "effect"
-import { testEffect } from "../lib/effect"
-import { PluginTestLayer } from "./fixture"
-
-const it = testEffect(PluginTestLayer)
-
-it.live("Promise tool executors receive interruption through their AbortSignal", () =>
-  Effect.gen(function* () {
-    const plugins = yield* Plugin.Service
-    const tools = yield* Tool.Service
-    const started = yield* Deferred.make<AbortSignal>()
-    yield* PluginPromise.fromPromise({
-      id: "cancel-tool",
-      async setup(context) {
-        await context.tool.transform((editor) =>
-          editor.add({
-            name: "wait",
-            description: "Wait until cancelled",
-            input: { type: "object", properties: {}, additionalProperties: false },
-            options: { codemode: false },
-            execute: (_input, context) =>
-              new Promise<never>((_resolve, reject) => {
-                context.signal.addEventListener("abort", () => reject(new Error("cancelled")), { once: true })
-                Effect.runSync(Deferred.succeed(started, context.signal))
-              }),
-          }),
-        )
-      },
-    }).effect(yield* PluginHost.make(plugins))
-
-    const snapshot = yield* tools.snapshot()
-    const fiber = yield* snapshot
-      .execute({
-        sessionID: Session.ID.make("ses_promise_tool_cancel"),
-        agent: Agent.ID.make("build"),
-        messageID: SessionMessage.ID.make("msg_promise_tool_cancel"),
-        call: { type: "tool-call", id: "call_promise_tool_cancel", name: "wait", input: {} },
-      })
-      .pipe(Effect.forkScoped)
-    const signal = yield* Deferred.await(started)
-    expect(signal.aborted).toBe(false)
-    yield* Fiber.interrupt(fiber)
-    const exit = yield* Fiber.await(fiber)
-    expect(signal.aborted).toBe(true)
-    expect(Exit.isFailure(exit) && Cause.hasInterruptsOnly(exit.cause)).toBe(true)
-  }),
-)
@@ -8,7 +8,7 @@ import { Money } from "@opencode/schema/money"
 import { Shell } from "@opencode/schema/shell"
 import { Skill } from "@opencode/schema/skill"
 import { Agent } from "@opencode/core/agent"
-import { asc, eq } from "drizzle-orm"
+import { and, asc, eq } from "drizzle-orm"
 import { Database } from "@opencode/core/database/database"
 import { AppNodeBuilder } from "@opencode/core/effect/app-node-builder"
 import { LayerNode } from "@opencode/util/effect/layer-node"
@@ -385,6 +385,26 @@ describe("Session.create", () => {

      // Absent stays absent: no empty-object normalization.
      expect((yield* session.create({ location })).metadata).toBeUndefined()
+
+      const replacement = { thread: "updated", owner: "host" }
+      yield* session.setMetadata({ sessionID: created.id, metadata: replacement })
+      expect((yield* session.get(created.id)).metadata).toEqual(replacement)
+      expect(
+        yield* db
+          .select({ data: EventTable.data })
+          .from(EventTable)
+          .where(
+            and(
+              eq(EventTable.aggregate_id, created.id),
+              eq(EventTable.type, Bus.versionedType(SessionEvent.MetadataUpdated.type, 1)),
+            ),
+          )
+          .get()
+          .pipe(Effect.orDie),
+      ).toMatchObject({ data: { metadata: replacement } })
+      expect(
+        yield* session.setMetadata({ sessionID: Session.ID.create(), metadata: replacement }).pipe(Effect.flip),
+      ).toBeInstanceOf(Session.NotFoundError)
    }),
  )

@@ -593,7 +593,7 @@ describe("SessionModelTransport", () => {
          Effect.forkChild({ startImmediately: true }),
        )
        yield* Effect.yieldNow
-        yield* TestClock.adjust("15 seconds")
+        yield* TestClock.adjust("10 seconds")
        expect(yield* Fiber.join(running)).toEqual(["fallback:slow"])
      }),
    )
@@ -731,40 +731,6 @@ describe("SessionModelTransport", () => {
    )
  })

-  test("keeps the Session on HTTP after repeated mid-stream socket losses", async () => {
-    let opens = 0
-    const connector: WebSocketConnector = {
-      open: () =>
-        Effect.gen(function* () {
-          opens++
-          const messages = yield* Queue.unbounded<string | Uint8Array, AIError>()
-          return {
-            sendText: () =>
-              Effect.sync(() => {
-                Queue.failCauseUnsafe(messages, Cause.fail(error("socket dropped")))
-              }),
-            messages: Stream.fromQueue(messages),
-            close: Queue.shutdown(messages).pipe(Effect.asVoid),
-          }
-        }),
-    }
-
-    await run(
-      connector,
-      Effect.gen(function* () {
-        const transport = yield* SessionModelTransport.Service
-        const executor = transport.bind(session)
-        for (let attempt = 0; attempt < 5; attempt++) {
-          const result = yield* Effect.result(collect(executor, exchange(`attempt-${attempt}`)))
-          expect(result._tag).toBe("Failure")
-        }
-        expect(opens).toBe(5)
-        expect(yield* collect(executor, exchange("sixth"))).toEqual(["fallback:sixth"])
-        expect(opens).toBe(5)
-      }),
-    )
-  })
-
  test("falls back to HTTP after close code 1009 and keeps the Session on HTTP", async () => {
    const messages = queue<string | Uint8Array, AIError>()
    let opened = 0
@@ -949,22 +915,24 @@ describe("SessionModelTransport", () => {
    )
  })

-  test("buffers a synchronous burst of frames larger than any fixed capacity", async () => {
-    // Bun dispatches every frame in a read buffer in one tick; a large tool call streams thousands
-    // of small argument deltas, so the exchange must absorb the whole burst before it can consume.
-    const burst = 1500
+  test("poisons instead of dropping data when the inbound queue overflows", async () => {
    const messages = queue<string | Uint8Array, AIError>()
+    const poisoned = Deferred.makeUnsafe<void>()
    let closed = 0
    const connector: WebSocketConnector = {
      open: () =>
        Effect.succeed({
          sendText: () =>
+            // Hold consumption at the send boundary until the reader fills and poisons the inbound queue.
            Effect.sync(() => {
-              for (let index = 0; index < burst; index++) Queue.offerUnsafe(messages, `frame:${index}`)
-              Queue.offerUnsafe(messages, "completed")
-            }),
-          messages: Stream.fromQueue(messages),
-          close: Effect.sync(() => closed++).pipe(Effect.andThen(Queue.shutdown(messages)), Effect.asVoid),
+              for (let index = 0; index <= 129; index++) Queue.offerUnsafe(messages, `frame:${index}`)
+            }).pipe(Effect.andThen(Deferred.await(poisoned))),
+          messages: Stream.fromQueue(messages).pipe(Stream.tap(() => Effect.yieldNow)),
+          close: Effect.sync(() => closed++).pipe(
+            Effect.andThen(Deferred.succeed(poisoned, undefined)),
+            Effect.andThen(Queue.shutdown(messages)),
+            Effect.asVoid,
+          ),
        }),
    }

@@ -973,21 +941,20 @@ describe("SessionModelTransport", () => {
      Effect.gen(function* () {
        const transport = yield* SessionModelTransport.Service
        const item = exchange("first")
-        const frames = yield* collect(transport.bind(session), {
-          ...item,
-          driver: {
-            create: item.driver.create,
-            observe: (_create, frame) =>
-              Effect.succeed(
-                frame === "completed" ? { type: "completed" as const, frame } : { type: "frame" as const, frame },
-              ),
-          },
+        const result = yield* Effect.result(
+          collect(transport.bind(session), {
+            ...item,
+            driver: {
+              create: item.driver.create,
+              observe: (_create, frame) => Effect.succeed({ type: "frame" as const, frame }),
+            },
+          }),
+        )
+        expect(result).toMatchObject({
+          _tag: "Failure",
+          failure: { reason: { _tag: "Transport", code: "queue-overflow", delivery: "accepted" } },
        })
-        expect(frames).toHaveLength(burst + 1)
-        expect(frames.slice(0, 3)).toEqual(["frame:0", "frame:1", "frame:2"])
-        expect(frames.at(-2)).toBe(`frame:${burst - 1}`)
-        expect(frames.at(-1)).toBe("completed")
-        expect(closed).toBe(0)
+        expect(closed).toBe(1)
      }),
    )
  })
@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import { State } from "@opencode/core/state"
 import { Effect } from "effect"
-import FastCheck from "fast-check"
+import { FastCheck } from "effect/testing"

 type Operation = { multiply: number; add: number }
 type Value = { value: number; order: number[] }
--- a/Show More
+++ b/Show More