release: v2.0.18

fix(core): decode legacy media in compaction checkpoints (#51409 )
Co-authored-by: Aiden Cline <aidenpcline@gmail.com>
2026-09-26 02:27:36 +00:00 · 2026-09-25 23:57:32 +00:00 · 2026-09-25 18:08:16 -05:00 · 2026-09-25 18:00:32 -05:00 · 2026-09-25 21:09:12 +00:00 · 2026-09-25 14:53:16 -05:00
185 changed files with 5141 additions and 1330 deletions
@@ -32,7 +32,7 @@
    },
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-      "version": "2.0.16",
+      "version": "2.0.18",
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        "@opencode/schema": "workspace:*",
@@ -54,7 +54,7 @@
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@@ -112,7 +112,7 @@
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+      "version": "2.0.18",
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@@ -135,7 +135,6 @@
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@@ -177,7 +176,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
        "@opencode/protocol": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -203,7 +202,7 @@
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+      "version": "2.0.18",
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        "effect": "catalog:",
@@ -216,7 +215,7 @@
    },
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      "name": "@opencode/console-app",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@ibm/plex": "6.4.1",
@@ -252,7 +251,7 @@
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    "packages/console/core": {
      "name": "@opencode/console-core",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@jsx-email/render": "1.1.1",
@@ -279,7 +278,7 @@
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      "name": "@opencode/console-function",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@opencode/console-core": "workspace:*",
@@ -296,7 +295,7 @@
    },
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      "name": "@opencode/console-mail",
-      "version": "2.0.16",
+      "version": "2.0.18",
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        "@jsx-email/cli": "1.4.3",
@@ -320,7 +319,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
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        "@opencode/console-core": "workspace:*",
@@ -340,7 +339,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
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        "@ai-sdk/gateway": "3.0.104",
@@ -408,7 +407,7 @@
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+      "version": "2.0.18",
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@@ -457,7 +456,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@opencode-ai/sdk": "1.18.21",
@@ -494,7 +493,7 @@
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+      "version": "2.0.18",
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@@ -510,7 +509,7 @@
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+      "version": "2.0.18",
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@@ -529,7 +528,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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@@ -542,7 +541,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
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@@ -556,7 +555,7 @@
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@@ -571,7 +570,7 @@
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+      "version": "2.0.18",
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        "@opencode/ai": "workspace:*",
@@ -597,8 +596,8 @@
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      "peerDependencies": {
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-        "@opentui/core": ">=0.5.10",
-        "@opentui/solid": ">=0.5.10",
+        "@opentui/core": ">=0.5.12",
+        "@opentui/solid": ">=0.5.12",
        "solid-js": ">=1.9.0",
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@@ -610,7 +609,7 @@
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+      "version": "2.0.18",
      "dependencies": {
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        "@opencode/schema": "workspace:*",
@@ -640,7 +639,7 @@
    },
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      "name": "@opencode/protocol",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "effect": "catalog:",
@@ -655,7 +654,7 @@
    },
    "packages/schema": {
      "name": "@opencode/schema",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
        "@standard-schema/spec": "catalog:",
        "effect": "catalog:",
@@ -679,7 +678,7 @@
    },
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -700,7 +699,7 @@
    },
    "packages/server": {
      "name": "@opencode/server",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@effect/platform-node-shared": "catalog:",
@@ -722,7 +721,7 @@
    },
    "packages/session-ui": {
      "name": "@opencode/session-ui",
-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@opencode/client": "workspace:*",
@@ -757,7 +756,7 @@
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    "packages/simulation": {
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@opencode/core": "workspace:*",
@@ -777,7 +776,7 @@
    },
    "packages/stats/app": {
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-      "version": "2.0.16",
+      "version": "2.0.18",
      "dependencies": {
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        "@kobalte/core": "catalog:",
@@ -811,7 +810,7 @@
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+      "version": "2.0.18",
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@@ -830,7 +829,7 @@
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@@ -876,7 +875,7 @@
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+      "version": "2.0.18",
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        "effect": "catalog:",
@@ -890,7 +889,7 @@
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+      "version": "2.0.18",
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        "@opencode/core": "workspace:*",
@@ -909,7 +908,6 @@
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        "remeda": "catalog:",
        "solid-js": "catalog:",
@@ -925,7 +923,7 @@
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+      "version": "2.0.18",
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        "@pierre/diffs": "catalog:",
@@ -960,7 +958,7 @@
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-      "version": "2.0.16",
+      "version": "2.0.18",
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@@ -982,6 +980,7 @@
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+        "open": "11.0.4",
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@@ -997,7 +996,7 @@
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+      "version": "2.0.18",
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@@ -1038,7 +1037,7 @@
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+      "version": "2.0.18",
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        "semver": "catalog:",
@@ -1098,6 +1097,7 @@
    "@types/node": "catalog:",
    "bun-types": "1.4.2",
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+    "open": "11.0.4",
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@@ -1114,9 +1114,9 @@
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@@ -4322,7 +4322,7 @@

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@@ -4340,6 +4340,8 @@

    "is-hexadecimal": ["is-hexadecimal@2.0.1", "", {}, "sha512-DgZQp241c8oO6cA1SbTEWiXeoxV42vlcJxgH+B3hi1AiqqKruZR3ZGF8In3fj4+/y/7rHvlOZLZtgJ/4ttYGZg=="],

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+
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@@ -4386,7 +4388,7 @@

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-    "is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
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@@ -4850,7 +4852,7 @@

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+    "open": ["open@11.0.4", "", { "dependencies": { "default-browser": "^5.5.1", "define-lazy-prop": "^3.0.0", "is-in-ssh": "^1.0.0", "is-inside-container": "^1.0.0", "powershell-utils": "^0.2.1", "wsl-utils": "^1.0.0" } }, "sha512-++Zlftm0kVLPmzC06t6epuWmcRMDbI4z5P3NNX979WA/k23+NtSOynEGzsVfZwguKw2mi5umVgnBlJQMwRz4Pg=="],

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@@ -4994,6 +4996,8 @@

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+    "powershell-utils": ["powershell-utils@0.2.1", "", {}, "sha512-C+y9x90UElAddDZmV4qOx9W53B61PO7cIqWz2dQsWlwswuq4mr8NEwytdGKboYbQlGZ3awrkTeNvcZiZNHnQ8A=="],
+
    "preact": ["preact@11.0.0-beta.0", "", {}, "sha512-IcODoASASYwJ9kxz7+MJeiJhvLriwSb4y4mHIyxdgaRZp6kPUud7xytrk/6GZw8U3y6EFJaRb5wi9SrEK+8+lg=="],

    "preact-render-to-string": ["preact-render-to-string@6.6.5", "", { "peerDependencies": { "preact": ">=10 || >= 11.0.0-0" } }, "sha512-O6MHzYNIKYaiSX3bOw0gGZfEbOmlIDtDfWwN1JJdc/T3ihzRT6tGGSEWE088dWrEDGa1u7101q+6fzQnO9XCPA=="],
@@ -5814,7 +5818,7 @@

    "ws": ["ws@8.21.0", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": ">=5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g=="],

-    "wsl-utils": ["wsl-utils@0.1.0", "", { "dependencies": { "is-wsl": "^3.1.0" } }, "sha512-h3Fbisa2nKGPxCpm89Hk33lBLsnaGBvctQopaBSOW/uIs6FTe1ATyAnKFJrzVs9vpGdsTe73WF3V4lIsk4Gacw=="],
+    "wsl-utils": ["wsl-utils@1.0.0", "", { "dependencies": { "is-wsl": "^3.1.0", "powershell-utils": "^0.1.0" } }, "sha512-Hl0ZOAs672vg+06kfujwRhoS6/jehvULrlFkuF2dRu6pHgA8U06h3xqNIqNNU1LTXPcedxByAR4GS6pwQK0mgA=="],

    "xdg-basedir": ["xdg-basedir@5.1.0", "", {}, "sha512-GCPAHLvrIH13+c0SuacwvRYj2SxJXQ4kaVTT5xgL3kPrz56XxkF21IGhjSE1+W0aw7gpBWRGXLCPnPby6lSpmQ=="],

@@ -5910,8 +5914,6 @@

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-    "@astrojs/telemetry/is-docker": ["is-docker@4.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-LHE+wROyG/Y/0ZnbktRCoTix2c1RhgWaZraMZ8o1Q7zCh0VSrICJQO5oqIIISrcSBtrXv0o233w1IYwsWCjTzA=="],
-
    "@aws-crypto/crc32/@aws-sdk/types": ["@aws-sdk/types@3.974.4", "", { "dependencies": { "@smithy/types": "^4.16.1", "tslib": "^2.6.2" } }, "sha512-dSFDNG00MEz0/xl5gxL62giLd1iYyJsTxZ1I1DOj6lC+bbgLB4TRsYClJg3b62dhXT1uATzsTNXPnC+33EJV3A=="],

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@@ -6394,8 +6396,6 @@

    "builder-util/js-yaml": ["js-yaml@4.3.1", "", { "dependencies": { "argparse": "^2.0.1" }, "bin": { "js-yaml": "bin/js-yaml.js" } }, "sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ=="],

-    "chrome-launcher/is-wsl": ["is-wsl@2.2.0", "", { "dependencies": { "is-docker": "^2.0.0" } }, "sha512-fKzAra0rGJUUBwGBgNkHZuToZcn+TtXHpeCgmkMJMMYx1sQDYaCSyjJBSCa2nH1DGm7s3n1oBnohoVTBaN7Lww=="],
-
    "chromium-bidi/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],

    "clean-css/source-map": ["source-map@0.6.1", "", {}, "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="],
@@ -6500,6 +6500,10 @@

    "import-in-the-middle/es-module-lexer": ["es-module-lexer@2.3.2", "", {}, "sha512-poHGpORABojJJucnV9KbOavETW8lBVnphkW77ER5/BQ5Fz7oXSoCNek7IH3vR5nRjdsEz926ibFYX8KtLQmdyw=="],

+    "is-inside-container/is-docker": ["is-docker@3.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-eljcgEDlEns/7AXFosB5K/2nCM4P7FQPkGc/DWLy5rmFEWvZayGrik1d9/QIY5nJ4f9YsVvBkA6kJpHn9rISdQ=="],
+
+    "is-wsl/is-docker": ["is-docker@2.2.1", "", { "bin": { "is-docker": "cli.js" } }, "sha512-F+i2BKsFrH66iaUFc0woD8sLy8getkwTwtOBjvs56Cx4CgJDeKQeqfz8wAYiSb8JOprWhHH5p77PbmYCvvUuXQ=="],
+
    "js-beautify/glob": ["glob@10.5.0", "", { "dependencies": { "foreground-child": "^3.1.0", "jackspeak": "^3.1.2", "minimatch": "^9.0.4", "minipass": "^7.1.2", "package-json-from-dist": "^1.0.0", "path-scurry": "^1.11.1" }, "bin": { "glob": "dist/esm/bin.mjs" } }, "sha512-DfXN8DfhJ7NH3Oe7cFmu3NCu1wKbkReJ8TorzSAFbSKrlNaQSKfIzqYqVY8zlbs2NLBbWpRiU52GX2PbaBVNkg=="],

    "js-beautify/nopt": ["nopt@7.2.1", "", { "dependencies": { "abbrev": "^2.0.0" }, "bin": { "nopt": "bin/nopt.js" } }, "sha512-taM24ViiimT/XntxbPyJQzCG+p4EKOpgD3mxFwW38mGjVUrfERQOeY4EDHjdnptttfHuHQXFx+lTP08Q+mLa/w=="],
@@ -6510,8 +6514,6 @@

    "lighthouse/devtools-protocol": ["devtools-protocol@0.0.1663043", "", {}, "sha512-33aOY3ZnBP1dgZsshgaL+/XlsQleiFZgyUaDtdZkEa1nbZhVY1MoDeWjk+wxg25fU924l1ZJfoGNmjjeA/5s1w=="],

-    "lighthouse/open": ["open@8.4.2", "", { "dependencies": { "define-lazy-prop": "^2.0.0", "is-docker": "^2.1.1", "is-wsl": "^2.2.0" } }, "sha512-7x81NCL719oNbsq/3mh+hVrAWmFuEYUqrq/Iw3kUzH8ReypT9QQ0BLoJS7/G9k6N81XjW4qHWtjWwe/9eLy1EQ=="],
-
    "lighthouse/ws": ["ws@7.5.13", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": "^5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-rsKI6xDBFVf4r/x8XyChGK04QR/XHroxs/jUcoWvtEZM8TPU/X/uIY9B1CsSzYws9ZJb/6bbBu7dPhFW00CAoA=="],

    "md-to-react-email/marked": ["marked@7.0.4", "", { "bin": { "marked": "bin/marked.js" } }, "sha512-t8eP0dXRJMtMvBojtkcsA7n48BkauktUKzfkPSCq85ZMTJ0v76Rke4DYz01omYpPTUh4p/f7HePgRo3ebG8+QQ=="],
@@ -6614,8 +6616,6 @@

    "sst/jose": ["jose@5.2.3", "", {}, "sha512-KUXdbctm1uHVL8BYhnyHkgp3zDX5KW8ZhAKVFEfUbU2P8Alpzjb+48hHvjOdQIyPshoblhzsuqOwEEAbtHVirA=="],

-    "storybook/open": ["open@10.2.0", "", { "dependencies": { "default-browser": "^5.2.1", "define-lazy-prop": "^3.0.0", "is-inside-container": "^1.0.0", "wsl-utils": "^0.1.0" } }, "sha512-YgBpdJHPyQ2UE5x+hlSXcnejzAvD0b22U2OuAP+8OnlJT+PjWPxtgmGqKKc+RgTM63U9gN0YzrYc71R2WT/hTA=="],
-
    "storybook-solidjs-vite/semver": ["semver@7.8.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-rkVq3IXh+4FDGch+KwzX3aV9W3kO54GyEgpvBzSyctDA6Xtd7RJQV1xmXbeQp5v7+VzLOfVqiutSE6GICgPFvg=="],

    "storybook-solidjs-vite/vite": ["vite@7.1.11", "", { "dependencies": { "esbuild": "^0.25.0", "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-uzcxnSDVjAopEUjljkWh8EIrg6tlzrjFUfMcR1EVsRDGwf/ccef0qQPRyOrROwhrTDaApueq+ja+KLPlzR/zdg=="],
@@ -6702,6 +6702,10 @@

    "write-file-atomic/signal-exit": ["signal-exit@4.1.0", "", {}, "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw=="],

+    "wsl-utils/is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
+
+    "wsl-utils/powershell-utils": ["powershell-utils@0.1.0", "", {}, "sha512-dM0jVuXJPsDN6DvRpea484tCUaMiXWjuCn++HGTqUWzGDjv5tZkEZldAJ/UMlqRYGFrD/etByo4/xOuC/snX2A=="],
+
    "yaml-language-server/prettier": ["prettier@3.9.6", "", { "bin": { "prettier": "bin/prettier.cjs" } }, "sha512-OpN0zzVdiaiAhxpuuj5efpIS4sY9j7bY6uR5mnj5yPzGkdkjNKSJeUThPb60Jw29QuAZgA4o+/iB49kFiaBX6g=="],

    "yaml-language-server/request-light": ["request-light@0.5.8", "", {}, "sha512-3Zjgh+8b5fhRJBQZoy+zbVKpAQGLyka0MPgW3zruTF4dFFJ8Fqcfu9YsAvi/rvdcaTeWG3MkbZv4WKxAn/84Lg=="],
@@ -7336,8 +7340,6 @@

    "builder-util/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],

-    "chrome-launcher/is-wsl/is-docker": ["is-docker@2.2.1", "", { "bin": { "is-docker": "cli.js" } }, "sha512-F+i2BKsFrH66iaUFc0woD8sLy8getkwTwtOBjvs56Cx4CgJDeKQeqfz8wAYiSb8JOprWhHH5p77PbmYCvvUuXQ=="],
-
    "cliui/string-width/emoji-regex": ["emoji-regex@8.0.0", "", {}, "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="],

    "cliui/strip-ansi/ansi-regex": ["ansi-regex@5.0.1", "", {}, "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ=="],
@@ -7398,12 +7400,6 @@

    "lazystream/readable-stream/string_decoder": ["string_decoder@1.1.1", "", { "dependencies": { "safe-buffer": "~5.1.0" } }, "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg=="],

-    "lighthouse/open/define-lazy-prop": ["define-lazy-prop@2.0.0", "", {}, "sha512-Ds09qNh8yw3khSjiJjiUInaGX9xlqZDY7JVryGxdxV7NPeuqQfplOpQ66yJFZut3jLa5zOwkXw1g9EI2uKh4Og=="],
-
-    "lighthouse/open/is-docker": ["is-docker@2.2.1", "", { "bin": { "is-docker": "cli.js" } }, "sha512-F+i2BKsFrH66iaUFc0woD8sLy8getkwTwtOBjvs56Cx4CgJDeKQeqfz8wAYiSb8JOprWhHH5p77PbmYCvvUuXQ=="],
-
-    "lighthouse/open/is-wsl": ["is-wsl@2.2.0", "", { "dependencies": { "is-docker": "^2.0.0" } }, "sha512-fKzAra0rGJUUBwGBgNkHZuToZcn+TtXHpeCgmkMJMMYx1sQDYaCSyjJBSCa2nH1DGm7s3n1oBnohoVTBaN7Lww=="],
-
    "miniflare/sharp/@img/sharp-darwin-arm64": ["@img/sharp-darwin-arm64@0.33.5", "", { "optionalDependencies": { "@img/sharp-libvips-darwin-arm64": "1.0.4" }, "os": "darwin", "cpu": "arm64" }, "sha512-UT4p+iz/2H4twwAoLCqfA9UH5pI6DggwKEGuaPy7nCVQ8ZsiY5PIcrRvD1DzuY3qYL07NtIQcWnBSY/heikIFQ=="],

    "miniflare/sharp/@img/sharp-darwin-x64": ["@img/sharp-darwin-x64@0.33.5", "", { "optionalDependencies": { "@img/sharp-libvips-darwin-x64": "1.0.4" }, "os": "darwin", "cpu": "x64" }, "sha512-fyHac4jIc1ANYGRDxtiqelIbdWkIuQaI84Mv45KvGRRxSAa7o7d1ZKAOBaYbnepLC1WqxfpimdeWfvqqSGwR2Q=="],
@@ -7674,6 +7670,10 @@

    "@astrojs/starlight/@astrojs/mdx/@astrojs/markdown-remark/shiki": ["shiki@3.23.0", "", { "dependencies": { "@shikijs/core": "3.23.0", "@shikijs/engine-javascript": "3.23.0", "@shikijs/engine-oniguruma": "3.23.0", "@shikijs/langs": "3.23.0", "@shikijs/themes": "3.23.0", "@shikijs/types": "3.23.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-55Dj73uq9ZXL5zyeRPzHQsK7Nbyt6Y10k5s7OjuFZGMhpp4r/rsLBH0o/0fstIzX1Lep9VxefWljK/SKCzygIA=="],

+    "@astrojs/starlight/astro/@astrojs/telemetry/is-docker": ["is-docker@3.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-eljcgEDlEns/7AXFosB5K/2nCM4P7FQPkGc/DWLy5rmFEWvZayGrik1d9/QIY5nJ4f9YsVvBkA6kJpHn9rISdQ=="],
+
+    "@astrojs/starlight/astro/@astrojs/telemetry/is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
+
    "@astrojs/starlight/astro/p-queue/p-timeout": ["p-timeout@6.1.4", "", {}, "sha512-MyIV3ZA/PmyBN/ud8vV9XzwTrNtR4jFrObymZYnZqMmW0zA8Z17vnT0rBgFE/TlohB+YCHqXMgZzb3Csp49vqg=="],

    "@astrojs/starlight/astro/sharp/@img/sharp-darwin-arm64": ["@img/sharp-darwin-arm64@0.33.5", "", { "optionalDependencies": { "@img/sharp-libvips-darwin-arm64": "1.0.4" }, "os": "darwin", "cpu": "arm64" }, "sha512-UT4p+iz/2H4twwAoLCqfA9UH5pI6DggwKEGuaPy7nCVQ8ZsiY5PIcrRvD1DzuY3qYL07NtIQcWnBSY/heikIFQ=="],
@@ -8076,6 +8076,10 @@

    "@opencode/web/@astrojs/cloudflare/wrangler/workerd": ["workerd@1.20260708.1", "", { "optionalDependencies": { "@cloudflare/workerd-darwin-64": "1.20260708.1", "@cloudflare/workerd-darwin-arm64": "1.20260708.1", "@cloudflare/workerd-linux-64": "1.20260708.1", "@cloudflare/workerd-linux-arm64": "1.20260708.1", "@cloudflare/workerd-windows-64": "1.20260708.1" }, "bin": { "workerd": "bin/workerd" } }, "sha512-WAK+Kt/VVCSldH2qSr8lx46XCJ4Q+bdlHNaFqUtOHthBEIB8C1N8HVW+VOLrxDoTCk0NGNv0zajnBeQK4JOB9w=="],

+    "@opencode/web/astro/@astrojs/telemetry/is-docker": ["is-docker@3.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-eljcgEDlEns/7AXFosB5K/2nCM4P7FQPkGc/DWLy5rmFEWvZayGrik1d9/QIY5nJ4f9YsVvBkA6kJpHn9rISdQ=="],
+
+    "@opencode/web/astro/@astrojs/telemetry/is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
+
    "@opencode/web/astro/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],

    "@opencode/web/astro/p-queue/p-timeout": ["p-timeout@6.1.4", "", {}, "sha512-MyIV3ZA/PmyBN/ud8vV9XzwTrNtR4jFrObymZYnZqMmW0zA8Z17vnT0rBgFE/TlohB+YCHqXMgZzb3Csp49vqg=="],
@@ -8216,6 +8220,10 @@

    "archiver-utils/glob/path-scurry/lru-cache": ["lru-cache@10.4.3", "", {}, "sha512-JNAzZcXrCt42VGLuYz0zfAzDfAvJWW6AfYlDBQyDV5DClI2m5sAmK+OIO7s59XfsRsWHp02jAJrRadPRGTt6SQ=="],

+    "astro-expressive-code/astro/@astrojs/telemetry/is-docker": ["is-docker@3.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-eljcgEDlEns/7AXFosB5K/2nCM4P7FQPkGc/DWLy5rmFEWvZayGrik1d9/QIY5nJ4f9YsVvBkA6kJpHn9rISdQ=="],
+
+    "astro-expressive-code/astro/@astrojs/telemetry/is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
+
    "astro-expressive-code/astro/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],

    "astro-expressive-code/astro/p-queue/p-timeout": ["p-timeout@6.1.4", "", {}, "sha512-MyIV3ZA/PmyBN/ud8vV9XzwTrNtR4jFrObymZYnZqMmW0zA8Z17vnT0rBgFE/TlohB+YCHqXMgZzb3Csp49vqg=="],
@@ -8318,6 +8326,10 @@

    "temp/rimraf/glob/minimatch": ["minimatch@3.1.5", "", { "dependencies": { "brace-expansion": "^1.1.7" } }, "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w=="],

+    "toolbeam-docs-theme/astro/@astrojs/telemetry/is-docker": ["is-docker@3.0.0", "", { "bin": { "is-docker": "cli.js" } }, "sha512-eljcgEDlEns/7AXFosB5K/2nCM4P7FQPkGc/DWLy5rmFEWvZayGrik1d9/QIY5nJ4f9YsVvBkA6kJpHn9rISdQ=="],
+
+    "toolbeam-docs-theme/astro/@astrojs/telemetry/is-wsl": ["is-wsl@3.1.1", "", { "dependencies": { "is-inside-container": "^1.0.0" } }, "sha512-e6rvdUCiQCAuumZslxRJWR/Doq4VpPR82kqclvcS0efgt430SlGIk05vdCN58+VrzgtIcfNODjozVielycD4Sw=="],
+
    "toolbeam-docs-theme/astro/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],

    "toolbeam-docs-theme/astro/p-queue/p-timeout": ["p-timeout@6.1.4", "", {}, "sha512-MyIV3ZA/PmyBN/ud8vV9XzwTrNtR4jFrObymZYnZqMmW0zA8Z17vnT0rBgFE/TlohB+YCHqXMgZzb3Csp49vqg=="],
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-+Clo0VPDdruHSoBNvV/wKAM8iR6HJPtB00oa8yl9ujU=",
-    "aarch64-linux": "sha256-4wU5v36GTXjwyt5ls4FH+5G43Ujd+dKVSJR21w3lhbA=",
-    "aarch64-darwin": "sha256-pThjoD6baddQ6biy7k1ByXwGwLAeWe/+w0tcYmt1uWs=",
-    "x86_64-darwin": "sha256-bCBl63CqBiqilb+YdaOLBYYZx/yf47c1aqgDOkgdegg="
+    "x86_64-linux": "sha256-aQQQhaUlAhpfqzH0vNi0IJ1cg7FQHIKYzxeq5d8PZoU=",
+    "aarch64-linux": "sha256-r9aDFu3UYmudmmYPhzCrpFvQlaejXc8V1IzLtG3jZPc=",
+    "aarch64-darwin": "sha256-B0m41LelD7d61vPHGIZZSO/cU7gbjHDJHt6oxNRRM8Q=",
+    "x86_64-darwin": "sha256-9TWJsyI3Y6BMomtGSgqA1th9LpxpqP4F5Tl/GyexVYw="
  }
 }
@@ -2,7 +2,7 @@
  "$schema": "https://json.schemastore.org/package.json",
  "name": "opencode",
  "description": "AI-powered development tool",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "private": true,
  "type": "module",
  "packageManager": "bun@1.4.2",
@@ -52,9 +52,9 @@
      "@octokit/rest": "22.0.0",
      "@hono/standard-validator": "0.2.0",
      "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.5.10",
-      "@opentui/keymap": "0.5.10",
-      "@opentui/solid": "0.5.10",
+      "@opentui/core": "0.5.12",
+      "@opentui/keymap": "0.5.12",
+      "@opentui/solid": "0.5.12",
      "@tanstack/solid-virtual": "3.13.37",
      "@shikijs/stream": "4.4.3",
      "@standard-schema/spec": "1.1.0",
@@ -162,6 +162,7 @@
    "@types/node": "catalog:",
    "bun-types": "1.4.2",
    "effect": "catalog:",
+    "open": "11.0.4",
    "solid-js": "catalog:"
  },
  "patchedDependencies": {
@@ -12,9 +12,9 @@

 Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `Message.media(...)`, `LanguageModel.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, and `LLM.generateObject`. `LLM.generate`/`LLM.stream` and Promise `ai.llm.generate`/`ai.llm.stream` accept ergonomic input or an `LLMRequest`; both paths use the same canonical request. Core still builds, logs, replays, and updates that durable `LLMRequest` boundary. Use `LLMRequest.update(...)` when deriving canonical request data; do not add a duplicate `LLM.updateRequest(...)` path.

-Modality namespaces mirror `LLM` exactly: `Image.request`, `Image.generate`, `Image.stream` (later `Video`, `Speech`, `Transcription`). Common request fields (`images`, `mask`, `n`, `size`, `aspectRatio`, `seed`, `format`) lower natively or fail with a typed `AIError`; provider-native controls always live under `providerOptions`, never under a modality-specific `options` key.
+Modality namespaces mirror `LLM` exactly: `Image.request`, `Image.generate`, `Image.stream`, and the same for `Video`, `Speech`, and `Transcription`. Common request fields (`images`, `mask`, `n`, `size`, `aspectRatio`, `seed`, `format`) lower natively or fail with a typed `AIError`; provider-native controls always live under `providerOptions`, never under a modality-specific `options` key.

-Media payloads are always `Media.Asset` (`src/media.ts`). Construct them with `Media.bytes`, `Media.base64`, `Media.url`, `Media.ref`, `Media.fromDataUrl`, or `Media.file`; never introduce a parallel `data: string | Uint8Array` shape. `MediaPart.media`, `ImageRequest.images`/`mask`, `ImageResponse.images`, and the `media` `LLMEvent` all share it. Protocols branch on `asset.source.type` and `asset.kind` and use `ProviderShared.inlineMedia` / `requireInlineMedia` / `mediaUrl` / `MediaInput.refID` rather than re-deriving base64 or URL handling.
+Media payloads are always `Media.Asset` (`src/media.ts`). Construct them with `Media.bytes`, `Media.base64`, `Media.url`, `Media.ref`, `Media.fromDataUrl`, or `Media.file`; never introduce a parallel `data: string | Uint8Array` shape. `MediaPart.media`, `ImageRequest.images`/`mask`, `ImageResponse.images`, and the `media` `LLMEvent` all share it. Protocols branch on `asset.source.type` and `asset.kind` and use `ProviderShared.requireInlineMedia` / `inlineRequired` / `mediaUrl` / `mediaReference` and `MediaInput.inlineBytes` / `refID` rather than re-deriving base64 or URL handling.

 `schema/messages.ts → media.ts → route/executor-service.ts` is an accepted runtime dependency from the schema layer on the executor service tag: `Media.Asset.bytes()` must be able to download `url` sources, and the tag lives in that leaf module precisely so the schema barrel never imports the executor implementation (which imports the schema barrel back). Do not move the tag into `route/executor.ts` or import `route/executor.ts` from `src/schema/*` or `src/media.ts`.

@@ -98,7 +98,7 @@ When a provider supports multiple physical transports, selection remains executi

 Media does not fit the SSE-frames-to-event-state-machine LLM route. `MediaRoute.inline(...)` / `queued(...)` / `stream(...)` (`src/route/media.ts`) compose a `MediaProtocol` kind with `Endpoint` and `Auth` and own the transport plumbing: `http` option merging, URL/query rendering, auth headers, JSON vs multipart encoding, and handing the response back to the protocol. `MediaProtocol.inline` (`src/route/media-protocol.ts`) is `body.from(request)` plus `response.decode(response, context)`; each protocol declares `const route = MediaProtocol.identity({ id, name, provider })` once and decodes through `route.decodeJson` / `route.text` / `route.decodeStarted` so decode failures retain the raw body and HTTP context, raising `route.unsupported(operation, message)` for requests it cannot lower, and passes `route` as the first argument to `MediaProtocol.inline` / `queued` / `stream`. `Generation` (`src/generation.ts`) is the provider-neutral handle for a queued generation over a `GenerationRoute` (`status`, `result`, `cancel`). Image protocol files follow the same section order as LLM protocols and declare unsupported common fields once through the protocol's `unsupported` list.

-`MediaProtocol.queued` is the submit-then-poll kind every video route uses: `start` (body + decode into `{ token, snapshot }`), `status`, `result`, and optional `cancel`, each addressed by a route-owned `token` whose `Schema.Codec` makes it serializable. `MediaRoute.inline` and `MediaRoute.queued` compose the two kinds with `Endpoint` and `Auth`; the queued route decodes the token once at the boundary (`start` output or `resume` input) and closes over it in a token-free `GenerationRoute` (`status`/`result`/`cancel` are plain Effects), so `Generation` never sees the token's shape and only carries the encoded JSON for persistence. Polls reuse the route's auth and deployment headers plus the request's `http` overlay after `start`, and resolve relative paths against the route base URL (provider-issued absolute URLs such as fal's `status_url` pass through). `result` is always its own GET even when the provider returns output inside the status document, so `Generation.await` behaves the same after `start` and after `resume`. `PollContext.auth` carries only what `Auth` added or changed so protocols can hand download credentials to output assets as transient `Media.Asset.headers` (Veo) — never part of `source` or JSON. Status strings map through a per-protocol `STATUS` table via `MediaProtocol.status`; terminal generations without output fail through `output.ended` / `output.contentPolicy` with the provider document on `reason.body`. `GenerationAwaitOptions` (`AwaitOptions` in `src/generation.ts`, `{ poll?: Poll }`) is the one options type for `await`, `events`, `Video.generate`, and `Video.stream`.
+`MediaProtocol.queued` is the submit-then-poll kind every video route uses: `start` (body + decode into `{ token, snapshot }`), `status`, `result`, and optional `cancel` (with `activeOnly` when the provider's cancel endpoint deletes finished work, as Runway's does: the route refreshes status first and skips terminal generations), each addressed by a route-owned `token` whose `Schema.Codec` makes it serializable. `MediaRoute.inline` and `MediaRoute.queued` compose the two kinds with `Endpoint` and `Auth`; the queued route decodes the token once at the boundary (`start` output or `resume` input) and closes over it in a token-free `GenerationRoute` (`status`/`result`/`cancel` are plain Effects), so `Generation` never sees the token's shape and only carries the encoded JSON for persistence. Polls reuse the route's auth and deployment headers plus the request's `http` overlay after `start`, and resolve relative paths against the route base URL (provider-issued absolute URLs such as fal's `status_url` pass through). `result` is always its own GET even when the provider returns output inside the status document, so `Generation.await` behaves the same after `start` and after `resume`. `PollContext.auth` carries only what `Auth` added or changed so protocols can hand download credentials to output assets as transient `Media.Asset.headers` (Veo) — never part of `source` or JSON. Status strings map through a per-protocol `STATUS` table via `MediaProtocol.status`; terminal generations without output fail through `output.ended` / `output.contentPolicy` with the provider document on `reason.body`. `GenerationAwaitOptions` (`AwaitOptions` in `src/generation.ts`, `{ poll?: Poll }`) is the one options type for `await`, `events`, `Video.generate`, and `Video.stream`.

 `MediaProtocol.stream` is the incremental kind every speech route uses, with the same discipline as LLM protocols. `MediaRoute.stream` submits the caller's request as `MediaProtocol.Addressed<Request>` (`{ ...request, mode }`, `mode: "generate" | "stream"`), so one provider stays one protocol: `body.from`, the endpoint path, and `frames` read `request.mode` to pick the body, path, and framing. `frames(bytes, context)` returns frames — `Framing.sse`, `Framing.lines`, `Framing.document` (a single-document response shaped like a streamed record), or the raw `bytes` for chunked audio. `initial()` is fresh per-response parser state; `step` folds each frame into it and emits modality events; `finish(state, context)` runs once after the last frame with the request, body, and observed `http` (header-only usage lives there) and emits exactly one terminal event or fails with `route.incomplete()`. Keep parser state to real accumulators and derive anything the request or body determines in `finish`. `generate` runs the same stream and folds it with the modality's `collect`. Request-derived URL parameters go on the body's `query` (array values repeat the parameter), applied before route and caller `http.query`. Decode frames with `route.decodeFrame` and raise stream-time failures with `route.frameError` (the frame stays on `reason.body`); protocols never thread HTTP context, because the route fills `reason.http` on stream errors that lack it. Speech protocols share `protocols/utils/speech-stream.ts` for deltas, timestamps, voice ids, PCM and container descriptions, and the terminal asset.

@@ -112,7 +112,7 @@ For providers where the URL is derived from typed inputs (Azure resource name, B

 ### Provider Facades

-Provider-facing APIs are configured facades over route values. Endpoint/auth/resource/API-version setup happens before model selection, and model selectors accept only a model or deployment id. Media models use per-modality selectors on the same facade (`openai.image(id)`, later `.video` / `.speech` / `.transcription`) that mirror `openai.responses(id)`; the one-word overlap with the request namespace is accepted over a second construction path:
+Provider-facing APIs are configured facades over route values. Endpoint/auth/resource/API-version setup happens before model selection, and model selectors accept only a model or deployment id. Media models use per-modality selectors on the same facade (`openai.image(id)`, `.speech(id)`, `.transcription(id)`, `google.video(id)`) that mirror `openai.responses(id)`; the one-word overlap with the request namespace is accepted over a second construction path:

 ```ts
 const openai = OpenAI.configure({ apiKey, baseURL })
@@ -475,18 +475,18 @@ const program = Effect.gen(function* () {
 Common fields are portable in shape, not in support. Unsupported fields fail with a typed `AIError` before any network
 call rather than being dropped, so check this table before swapping only the `model`:

-| Provider              | `n` | `size`    | `aspectRatio` | `seed` | `format` | `images`                  | `mask`              |
-| --------------------- | --- | --------- | ------------- | ------ | -------- | ------------------------- | ------------------- |
-| OpenAI                | ✓¹  | ✓         | ✗             | ✗      | ✓        | ✓                         | ✓                   |
-| Google (Gemini)       | 1   | ✗         | ✓             | ✓      | ✗        | ✓ (no public URLs)        | ✗                   |
-| xAI                   | ✓   | ✗         | ✓             | ✗      | ✗        | ✓                         | ✗                   |
-| Z.ai                  | ✗   | ✓         | ✗             | ✗      | ✗        | ✗                         | ✗                   |
-| Meta                  | ✓   | ✓ (hint)  | ✗             | ✗      | ✓        | ✓                         | ✗                   |
-| Black Forest Labs     | 1   | per model | per model     | ✓      | ✓        | per model (1–8)           | `flux-pro-1.0-fill` |
-| fal                   | ✓   | per model | per model     | ✓      | ✓        | 1 (several on `/edit`)    | ✓                   |
-| Replicate             | ✗   | ✗         | ✗             | ✗      | ✗        | ✗ (use `providerOptions`) | ✗                   |
-| Stability `image`     | 1   | ✗         | ✓             | ✓      | ✓        | 1 (not on `core`)         | ✗                   |
-| Stability `upscale()` | ✗   | ✗         | ✗             | ✓      | ✓        | exactly 1 (required)      | ✗                   |
+| Provider              | `n` | `size`    | `aspectRatio` | `seed` | `format` | `images`                         | `mask`              |
+| --------------------- | --- | --------- | ------------- | ------ | -------- | -------------------------------- | ------------------- |
+| OpenAI                | ✓¹  | ✓         | ✗             | ✗      | ✓        | ✓                                | ✓                   |
+| Google (Gemini)       | 1   | ✗         | ✓             | ✓      | ✗        | ✓ (no public URLs)               | ✗                   |
+| xAI                   | ✓   | ✗         | ✓             | ✗      | ✗        | ✓                                | ✗                   |
+| Z.ai                  | ✗   | ✓         | ✗             | ✗      | ✗        | ✗                                | ✗                   |
+| Meta                  | ✓   | ✓ (hint)  | ✗             | ✗      | ✓        | ✓                                | ✗                   |
+| Black Forest Labs     | 1   | per model | per model     | ✓      | ✓        | per model (1–8)                  | `flux-pro-1.0-fill` |
+| fal                   | ✓   | per model | per model     | ✓      | ✓        | 1 (several on `/edit`, `/multi`) | ✓                   |
+| Replicate             | ✗   | ✗         | ✗             | ✗      | ✗        | ✗ (use `providerOptions`)        | ✗                   |
+| Stability `image`     | 1   | ✗         | ✓             | ✓      | ✓        | 1 (not on `core`)                | ✗                   |
+| Stability `upscale()` | ✗   | ✗         | ✗             | ✓      | ✓        | exactly 1 (required)             | ✗                   |

 ✓ lowers natively; ✗ fails whenever the field is set (including `n: 1`); `1` means `n > 1` fails. ¹ `Image.stream` on OpenAI generates one image. fal
 rejects `size` and `aspectRatio` together; which one a fal or BFL model takes depends on the model.
@@ -621,8 +621,7 @@ persist the bytes promptly if they must remain available.
 ### Partial images

 OpenAI's GPT image models stream previews. `Image.stream` sends `stream: true` with `partialImages` (0–3, default 2)
-and emits `image-partial` events before each final `image`; `Image.generate` keeps the plain JSON request.
-`dall-e-*` models do not stream and fail typed:
+and emits `image-partial` events before each final `image`; `Image.generate` keeps the plain JSON request:

 ```ts
 import { Stream } from "effect"
@@ -699,7 +698,7 @@ const program = Effect.gen(function* () {
 })
 ```

-The hosted result is represented as a provider-executed tool call and tool result, and the generated image is also emitted as a first-class `media` `LLMEvent` (`response.message` then carries a `media` part). Gemini image-capable models emit the same `media` event for inline image output. Retaining `response.message` preserves the generated image for continuation on both routes.
+The hosted result is represented as a provider-executed tool call and a tool result whose content carries the generated image as a file. Gemini image-capable models instead emit a first-class `media` `LLMEvent` for inline image output (`response.message` then carries a `media` part). Retaining `response.message` preserves the generated image for continuation on both routes.

 ## Video generation

@@ -840,9 +839,10 @@ Provider notes:
 - **OpenAI** streams over SSE (`stream_format: "sse"`), which is also the only place it reports token usage; `tts-1`
  and `tts-1-hd` do not support SSE and stream the raw audio body instead. `pcm` is 24 kHz 16-bit mono. `language`
  and `timestamps` are not supported.
- **Gemini TTS** returns raw 16-bit PCM only (`audio/L16;codec=pcm;rate=24000`), so any `format` other than `pcm`
-  fails typed; wrap the samples yourself. Style is directed in the text, so `instructions` and `speed` fail typed.
-  Only `gemini-3.1-flash-tts-preview` and later support streaming. Two-speaker audio goes through
+- **Gemini TTS** returns the provider's default output: WAV for Gemini 3.8 TTS `generate`, raw 16-bit PCM
+  (`audio/L16;codec=pcm;rate=24000`) otherwise. `pcm` is the only explicit `format` it accepts, and it fails typed on
+  Gemini 3.8 `generate`; the route never wraps PCM as WAV. Style is directed in the text, so `instructions` and
+  `speed` fail typed. Only `gemini-3.1-flash-tts-preview` and later support streaming. Two-speaker audio goes through
  `providerOptions.speechConfig.multiSpeakerVoiceConfig`.
 - **ElevenLabs** requires `voice` (the path voice id) and authenticates with `xi-api-key`. `format` maps to the
  `output_format` query parameter (`mp3_44100_128`, `pcm_24000`, `wav_24000`, `opus_48000_64`);
@@ -944,6 +944,7 @@ const transcript = await generation.await({ poll: { interval: 3_000 } })
 - **`ImageClient`** — Effect service and layer for image execution, parallel to `LLMClient`.
 - **`Media`** — the shared asset type (`Media.Asset`, `Media.Source`) and constructors used by messages, tool results, and media requests.
 - **`Generation`** — provider-neutral handle for an in-flight media generation (`await`, `refresh`, `cancel`, `events`) used by queued media routes.
+- **`Video.request` / `generate` / `stream` / `start` / `resume`** — queued video generation through a provider-neutral request; `VideoClient` is its Effect service and layer.
 - **`Speech.request` / `Speech.generate` / `Speech.stream`** — text-to-speech through a provider-neutral request; `SpeechClient` is its Effect service and layer.
 - **`Transcription.request` / `generate` / `stream` / `start` / `resume`** — speech-to-text over inline, streaming, and queued routes; `TranscriptionClient` is its Effect service and layer.
 - **`AIClient.layer` / `AIClient.layerWith(executor)`** — every modality client plus the request executor in one layer.
@@ -1,6 +1,7 @@
 # Media generation in `@opencode/ai` — public API direction

-Status: phases 1–4 implemented (through Image queued routes and partial images); phase 5 proposal.
+Status: phases 1–4 implemented (through Image queued routes and partial images; ElevenLabs Scribe transcription
+pending); phase 5 proposal.

 ## Goal

@@ -40,7 +41,7 @@ The design below is derived from a survey of the raw provider APIs (OpenAI, Gemi

 ### Model selection

-A model value is built as `OpenAI.configure({ apiKey }).responses("gpt-5")` or `.image("gpt-image-2")`: `configure` fixes credentials, endpoint, and defaults; the selector fixes which of the provider's APIs to hit and binds the typed `providerOptions` generic. Media follows the same shape with one selector per modality — `openai.image(id)` today, `.video(id)` / `.speech(id)` / `.transcription(id)` as those modalities land — mirroring `openai.responses(id)`. `Image.request` accepts `ImageModel` only, exactly as `LLM.request` accepts `LanguageModel`.
+A model value is built as `OpenAI.configure({ apiKey }).responses("gpt-5")` or `.image("gpt-image-2")`: `configure` fixes credentials, endpoint, and defaults; the selector fixes which of the provider's APIs to hit and binds the typed `providerOptions` generic. Media follows the same shape with one selector per modality — `.image(id)`, `.video(id)`, `.speech(id)`, `.transcription(id)` on the facades that offer each — mirroring `openai.responses(id)`. `Image.request` accepts `ImageModel` only, exactly as `LLM.request` accepts `LanguageModel`.

 ```ts
 import { OpenAI, Google } from "@opencode/ai/providers"
@@ -135,8 +136,8 @@ Effect.gen(function* () {
 })
 ```

-`size` and `aspectRatio` are not interchangeable; each route rejects fields it cannot lower — see the README's Image
-portability matrix.
+`size` and `aspectRatio` are not interchangeable; each route rejects fields it cannot lower — see the portability table
+in the README's Image generation section.

 Editing is not a separate function; `images`/`mask` on the request select the edit path in the route (OpenAI `/images/edits`, Gemini multimodal parts, xAI `/images/edits`). Routes that cannot honor `mask` fail with `Unsupported`.

@@ -166,8 +167,8 @@ Effect.gen(function* () {

  // Simple: wait for it.
  const response = yield* Video.generate(request, { poll: { interval: "10 seconds", timeout: "10 minutes" } })
-  response.video                                     // Media.Asset: url with expiresAt (+ transient `headers` for Veo downloads)
-  response.usage                                     // credits on Runway; the other three report none
+  response.video                                     // Media.Asset: url (expiresAt on Veo and Runway; transient `headers` for Veo downloads)
+  response.usage                                     // credits on Runway; the other three report none (xAI's usage.cost_in_usd_ticks is not decoded)
  response.notices                                   // Veo raiMediaFilteredReasons → filtered, xAI respect_moderation → moderated
  yield* response.video.materialize()                // pull bytes before the URL expires

@@ -175,7 +176,7 @@ Effect.gen(function* () {
  const generation = yield* Video.start(request)     // Generation<VideoResponse>
  generation.id; generation.status; generation.progress; generation.position; generation.token
  yield* generation.await({ poll })                  // VideoResponse
-  yield* generation.cancel()                         // fal PUT cancel_url, Runway DELETE /tasks/{id}; no-op for Veo and xAI
+  yield* generation.cancel()                         // fal PUT cancel_url, Runway DELETE /tasks/{id}; Veo and xAI succeed without a request

  // Resume from another process. The token is validated against the route's codec and refreshed once. It carries no
  // route identity, so persist the provider and model ID alongside it: `resume` needs the model.
@@ -188,10 +189,11 @@ Effect.gen(function* () {

 Tokens are route-owned JSON: Veo `{ operation }`, xAI `{ requestID }`, Runway `{ taskID }`, fal
 `{ requestID, statusURL, responseURL, cancelURL }` (fal's follow-up URLs are authoritative and absolute). Common-field
-lowering per provider: Veo takes inline media only and rejects `audio: false` and `n > 1`; xAI rejects `seed` and
-`negativePrompt` and routes a `video` input to edits or (`providerOptions.mode: "extend"`) extensions; fal rejects
-`durationSeconds`, `references`, and `frames.last` because the field names and enums differ per model; Runway passes
-`aspectRatio` through as its pixel `ratio` and rejects `n`.
+lowering per provider: Veo takes inline media only, rejects `audio: false` and `n > 1`, and requires `frames.first`
+when `frames.last` is set; xAI rejects `n`, `seed`, and `negativePrompt` and routes a `video` input to edits or
+(`providerOptions.mode: "extend"`) extensions; fal rejects `n`, plus `durationSeconds`, `references`, and `frames.last`
+because the field names and enums differ per model; Runway passes `aspectRatio` through as its pixel `ratio` and
+rejects `n`.

 Deferred: `Video.complete(model, token, webhook)` (finish from a webhook payload without polling) and provider poll
 hints (none of the four providers emit one). Later providers: Luma, Kling, MiniMax, Replicate.
@@ -241,10 +243,12 @@ name→id resolution. Multi-speaker (Gemini `speechConfig.multiSpeakerVoiceConfi
 `opus_48000_64`, Cartesia `{ container, encoding, sample_rate }`, Deepgram `encoding`+`container`) and declares the
 asset's media type rather than sniffing, because headerless PCM can look like an MPEG frame sync. Headerless PCM
 always carries `info.encoding`, `info.sampleRate`, and `info.channels`; its media type is the provider's declaration
-(Gemini `audio/L16;codec=pcm;rate=24000`, Deepgram's `content-type`) or `audio/pcm`. Gemini returns PCM only, so any
-other `format` is rejected rather than wrapped as WAV by the route. Every `format` value a route cannot produce (unknown
-to it, a container on Cartesia SSE, WAV on an ElevenLabs stream, anything but PCM on Gemini) fails the same way as an
-unsupported field: `UnsupportedOperation` with `operation: "media.format"`.
+(Gemini `audio/L16;codec=pcm;rate=24000`, Deepgram's `content-type`) or `audio/pcm`. Gemini's asset follows the
+provider's declared type: WAV for Gemini 3.8 TTS `generate`, headerless PCM otherwise. The route never wraps PCM as WAV,
+so `pcm` is the only explicit `format` it accepts, and not on Gemini 3.8 `generate`. Every `format` value a route cannot
+produce (unknown to it, a container on Cartesia SSE, WAV on an ElevenLabs stream, anything but `pcm` on Gemini, `pcm` on
+Gemini 3.8 `generate`) fails the same way as an unsupported field: `UnsupportedOperation` with
+`operation: "media.format"`.

 **Timestamps.** `timestamps: true` on the request asks for alignment. ElevenLabs selects the `with-timestamps`
 endpoints (character-level, NDJSON when streaming); Cartesia sets `add_timestamps` on `/tts/sse` (word-level; a
@@ -277,7 +281,7 @@ const request = Transcription.request({
  language: "en",                                  // provider-native passthrough
  timestamps: "segment",                           // none | segment | word
  diarize: true,
-  speakers: 2,                                     // expected count, hint only (AssemblyAI)
+  speakers: 2,                                     // exact speaker count (AssemblyAI only)
  providerOptions: { known_speaker_names: ["agent"] },
 })

@@ -291,10 +295,11 @@ yield* Transcription.resume(model, token)
 Transcription is the first modality whose providers span all three protocol kinds, and it needed no fourth kind.
 Every `MediaRoute` now carries its `kind`; `TranscriptionRoute` is the union of the inline, stream, and queued routes;
 `TranscriptionModel.fromRoute` is overloaded per protocol kind (arity picks the overload: `<Options>`,
-`<Options, Frame, State>`, `<Options, Token>`) and composes through `MediaRoute.inline` / `stream` / `queued`; and
-`TranscriptionClient` dispatches on `route.kind`. `generate` on a queued route is `start` then `await`; `stream` on an
-inline route is the response as a single `finish`, and on a queued route it is the status observations followed by
-`finish`. `start` / `resume` on a non-queued route fail with `UnsupportedOperation` (`transcription.start`). The
+`<Options, Frame, State>`, `<Options, Token>`) and composes through the shared `composeRoute` (`src/media-model.ts`),
+which picks `MediaRoute.inline` / `stream` / `queued`; and `TranscriptionClient`, like every modality client, is
+`MediaClient.make` (`src/media-client.ts`), which dispatches on `route.kind`. `generate` on a queued route is `start`
+then `await`; `stream` on an inline route is the response as a single `finish`, and on a queued route it is the status
+observations followed by `finish`. `start` / `resume` on a non-queued route fail with `UnsupportedOperation` (`transcription.start`). The
 `finish` event carries the whole transcript (text, segments, words, language, duration, usage), so the stream route's
 `collect` is just "take `finish`".

@@ -309,11 +314,12 @@ Settled rules:
  word offsets, so segment timestamps and diarization also request word offsets there.
 - **Diarization.** `diarize` means segments (and words, where the provider labels them) carry `speaker`. Labels are
  provider-native strings — OpenAI `A` or a known speaker name, Deepgram `0`, Gemini `spk:0`, AssemblyAI `A` — with no
-  cross-provider speaker model. `speakers` is a hint; only AssemblyAI (`speakers_expected`) accepts it.
+  cross-provider speaker model. `speakers` is the exact number of speakers to label, which AssemblyAI (`speakers_expected`, the only route that
+  accepts it) treats as a constraint rather than a hint.
 - **Language** is passed through (`language`, OpenAI `gpt-transcribe` `languages[]`, Gemini `languageCodes`,
  AssemblyAI `language_code`). `response.language` is the provider's own value, lowercased but not normalized: an
-  ISO code on most routes, `english` from whisper-1, `en_us` from AssemblyAI. Deepgram and AssemblyAI assume English
-  unless asked to detect, so a missing `language` enables their detection.
+  ISO code on most routes (AssemblyAI's detection returns `en`), `english` from whisper-1. Deepgram and AssemblyAI
+  assume English unless asked to detect, so a missing `language` enables their detection.
 - **Gemini** requires a transcribe model; other model ids fail with `UnsupportedOperation` before the call, because
  general models ignore `audioTranscriptionConfig` and answer conversationally. Streamed chunks carry whole speaker
  turns (one part per turn), which join with a space.
@@ -323,7 +329,7 @@ Settled rules:

 | Provider | Kind | Audio input | `timestamps` | `diarize` | Unsupported | Usage |
 |---|---|---|---|---|---|---|
-| OpenAI | stream (`stream: true` in `stream` mode) | multipart `file` (inline only) | `whisper-1` (`verbose_json`); diarize model: `segment` | `gpt-4o-transcribe-diarize` (`diarized_json`) | `speakers`; `prompt` on the diarize model; streaming on `whisper-1` | `tokens` or `seconds` |
+| OpenAI | stream (`stream: true` in `stream` mode; `whisper-1` ignores `stream`, so it emits only `finish`) | multipart `file` (inline only) | `whisper-1` (`verbose_json`); diarize model: `segment` | `gpt-4o-transcribe-diarize` (`diarized_json`) | `speakers`; `prompt` on the diarize model | `tokens` or `seconds` |
 | Gemini | stream (`generateContent` / `streamGenerateContent`) | `inlineData` or Gemini Files `fileData` | `audioTranscriptionConfig.wordTimestamp` | `audioTranscriptionConfig.diarization` | `prompt`, `speakers` | `tokens` |
 | Deepgram | inline | raw body, or JSON `{ url }` | words always; `segment` → `utterances` | `diarize_model=latest` + `utterances` | `prompt`, `speakers` | `seconds` (`metadata.duration`) |
 | AssemblyAI | queued (upload → submit → poll) | `/v2/upload` then `audio_url`, or a URL | words always; `segment` → `speaker_labels` | `speaker_labels` | — | `seconds` (`audio_duration`) |
@@ -353,7 +359,7 @@ GenerationAwaitOptions = { poll?: Poll }
 Poll = { interval?: Duration; timeout?: Duration }
 ```

-`Generation` is not video-specific. Image routes on BFL, fal, and Replicate are queued; `Image.start` exists for them. A route declares itself `inline` or `queued`; `generate` on a queued route is `start` then `await`.
+`Generation` is not video-specific. Image routes on BFL, fal, Replicate, and Stability `upscale()` are queued; `Image.start` exists for them. A route declares itself `inline` or `queued`; `generate` on a queued route is `start` then `await`.

 ### Usage

@@ -400,14 +406,15 @@ Streams become `AsyncIterable` via `Stream.toAsyncIterable`. `AIError` is thrown

 ### Providers

-Existing facades gain per-modality selectors; the modality routes each facade provides:
+Existing facades gain per-modality selectors; the modality routes each facade provides (*italics* are not
+implemented):

 | Facade | llm | image | video | speech | transcription | other |
 |---|---|---|---|---|---|---|
-| `OpenAI` | responses (default), chat | Images API (stream) | Sora (deprecated 2026-09-24) | ✓ | ✓ | |
+| `OpenAI` | responses (default), chat | Images API (stream) | *Sora skipped (decision 8)* | ✓ | ✓ | |
 | `Google` | Gemini | Gemini-native | Veo | Gemini TTS | `gemini-3.5-transcribe` | |
 | `XAI` | ✓ | ✓ | ✓ | | | |
-| `ElevenLabs` | | | | ✓ | Scribe | soundEffect, music |
+| `ElevenLabs` | | | | ✓ | *Scribe (pending)* | *soundEffect, music (phase 5)* |
 | `Cartesia` | | | | ✓ | | |
 | `Deepgram` | | | | Aura | ✓ | |
 | `Fal` | | ✓ (queued) | ✓ | | | |
@@ -416,7 +423,7 @@ Existing facades gain per-modality selectors; the modality routes each facade pr
 | `Replicate` | | ✓ (queued) | | | | |
 | `Stability` | | `image` (inline), `upscale()` (queued) | | | | |
 | `Runway` | | | ✓ | | | |
-| `Luma`, `Kling`, `MiniMax` | | per provider | | | | |
+| `Luma`, `Kling`, `MiniMax` | | *deferred* | *deferred* | | | |

 New facades follow the existing one-file-per-provider rule. The facade selector is the public path for media models; modality-specific package entrypoints (for example `@opencode/ai/providers/openai/images`) are deferred until Core has a modality-aware model resolver.

@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "name": "@opencode/ai",
  "type": "module",
  "license": "MIT",
@@ -53,6 +53,8 @@ export type Event = Observation | { readonly type: "generation-finished"; readon

 const TERMINAL: ReadonlySet<Status> = new Set(["completed", "failed", "cancelled", "expired"])

+export const isTerminal = (status: Status) => TERMINAL.has(status)
+
 export class Generation<Response> {
  readonly id: string
  readonly status: Status
@@ -81,7 +83,7 @@ export class Generation<Response> {
  }

  get terminal() {
-    return TERMINAL.has(this.status)
+    return isTerminal(this.status)
  }

  refresh(): Effect.Effect<Generation<Response>, AIError> {
@@ -109,9 +111,10 @@ export class Generation<Response> {
  }

  /**
-   * Status observations as a stream, ending after the first terminal observation. Each poll is bounded by the time
-   * remaining until `poll.timeout`, so a hung status request fails the stream instead of stalling it. (`Stream.interruptWhen`
-   * would express this directly but deadlocks under `TestClock` when the source completes while the timer sleeps.)
+   * Status observations as a stream, ending after the first terminal observation. Each poll and each sleep between polls
+   * is bounded by the time remaining until `poll.timeout`, so a hung status request or a long interval fails the stream at
+   * the deadline instead of stalling it. (`Stream.interruptWhen` would express this directly but deadlocks under
+   * `TestClock` when the source completes while the timer sleeps.)
   */
  events(options?: AwaitOptions): Stream.Stream<Event, AIError> {
    if (this.terminal) return Stream.make(this.event())
@@ -120,17 +123,26 @@ export class Generation<Response> {
      Clock.currentTimeMillis.pipe(
        Effect.map((start) => {
          const deadline = start + Duration.toMillis(timeout)
+          // Fail before polling once the deadline has passed: a fast status request could otherwise win the zero-budget
+          // race and schedule another zero-delay poll.
          const refresh = Clock.currentTimeMillis.pipe(
            Effect.flatMap((now) =>
-              this.refresh().pipe(
-                Effect.timeoutOrElse({
-                  duration: Duration.millis(Math.max(0, deadline - now)),
-                  orElse: () => this.timeoutError(timeout),
-                }),
-              ),
+              now >= deadline
+                ? this.timeoutError(timeout)
+                : this.refresh().pipe(
+                    Effect.timeoutOrElse({
+                      duration: Duration.millis(deadline - now),
+                      orElse: () => this.timeoutError(timeout),
+                    }),
+                  ),
            ),
          )
-          return Stream.fromEffectSchedule(refresh, this.schedule(options?.poll)).pipe(
+          const schedule = this.schedule(options?.poll).pipe(
+            Schedule.modifyDelay((meta) =>
+              Effect.succeed(Duration.min(meta.duration, Duration.millis(Math.max(0, deadline - meta.now)))),
+            ),
+          )
+          return Stream.fromEffectSchedule(refresh, schedule).pipe(
            Stream.takeUntil((generation) => generation.terminal),
            Stream.map((generation) => generation.event()),
          )
@@ -110,8 +110,11 @@ const fromRequest = Effect.fn("AssemblyAITranscription.fromRequest")(function* (
        language_code: request.language,
        language_detection: request.language === undefined ? true : undefined,
        prompt: request.prompt,
-        // Turn-level `utterances`, the only segments AssemblyAI returns, require speaker labels.
-        speaker_labels: request.diarize === true || request.timestamps === "segment" ? true : undefined,
+        // Turn-level `utterances`, the only segments AssemblyAI returns, and `speakers_expected` require speaker labels.
+        speaker_labels:
+          request.diarize === true || request.timestamps === "segment" || request.speakers !== undefined
+            ? true
+            : undefined,
        speakers_expected: request.speakers,
      },
      request.providerOptions,
@@ -155,8 +158,7 @@ const decodeResult = Effect.fn("AssemblyAITranscription.decodeResult")(function*
  const error = transcript.error ?? undefined
  if (status === "failed")
    return yield* output.ended("failed", `${route.name} transcription failed${error === undefined ? "" : `: ${error}`}`)
-  if (status !== "completed")
-    return yield* output.invalid(`${route.name} transcript ${context.token.transcriptID} has not finished`)
+  if (status !== "completed") return yield* output.pending(context.token.transcriptID)
  const duration = transcript.audio_duration ?? undefined
  return new TranscriptionResponse({
    text: transcript.text ?? "",
@@ -31,13 +31,21 @@ export type Request = ImageRequestFor<BlackForestLabsImageOptions>
 // 2. Token and response schemas
 // ---------------------------------------------------------------------------

-/** Regional clusters answer on different hosts, so the returned `polling_url` is followed verbatim. */
-export const Token = Schema.Struct({ id: Schema.String, pollingURL: Schema.String })
+/**
+ * Regional clusters answer on different hosts, so the returned `polling_url` is followed verbatim. BFL reports the
+ * credit cost on submit, so it rides on the token; it is optional so tokens persisted before it existed still decode.
+ */
+export const Token = Schema.Struct({
+  id: Schema.String,
+  pollingURL: Schema.String,
+  cost: Schema.optionalKey(Schema.Number),
+})
 export type Token = Schema.Schema.Type<typeof Token>

 const StartResponse = Schema.Struct({
  id: Schema.String,
  polling_url: Schema.String,
+  cost: optionalNull(Schema.Number),
 })

 const Result = Schema.Struct({
@@ -145,7 +153,11 @@ const fromRequest = Effect.fn("BlackForestLabsImages.fromRequest")(function* (re
 // ---------------------------------------------------------------------------

 const decodeStart = route.decodeStarted(StartResponse, (value) => ({
-  token: { id: value.id, pollingURL: value.polling_url },
+  token: {
+    id: value.id,
+    pollingURL: value.polling_url,
+    ...(value.cost === undefined || value.cost === null ? {} : { cost: value.cost }),
+  },
  snapshot: { id: value.id, status: "queued" },
 }))

@@ -169,14 +181,16 @@ const decodeResult = Effect.fn("BlackForestLabsImages.decodeResult")(function* (
  if (isModerated(document.status)) return yield* output.contentPolicy(`${route.name} moderated the generation`)
  if (status === "failed" || status === "expired")
    return yield* output.ended(status, `${route.name} generation ${context.token.id} ended with ${document.status}`)
-  if (status !== "completed" || document.result === undefined || document.result === null)
+  if (status !== "completed") return yield* output.pending(context.token.id)
+  if (document.result === undefined || document.result === null)
    return yield* output.invalid(`${route.name} generation ${context.token.id} has no result`)
  const { sample, seed, prompt, ...rest } = document.result
+  // A settled `cost` on the result supersedes the submit-time cost carried on the token.
+  const cost = document.cost ?? context.token.cost
  return new ImageResponse({
    // `sample` is a signed URL that expires 10 minutes after the result is ready, so it is downloaded now.
    images: [yield* context.materialize(Media.url(sample))],
-    usage:
-      document.cost === undefined || document.cost === null ? undefined : { type: "credits", credits: document.cost },
+    usage: cost === undefined ? undefined : { type: "credits", credits: cost },
    providerMetadata: {
      bfl: { id: context.token.id, seed: seed ?? undefined, prompt: prompt ?? undefined, ...rest },
    },
@@ -67,6 +67,9 @@ const queryParameters = (request: Request) => {
 }

 const fromRequest = Effect.fn("DeepgramSpeech.fromRequest")(function* (request: Request) {
+  // Not in `unsupported`: that list would also reject `timestamps: false`, which asks for nothing.
+  if (request.timestamps === true)
+    return yield* route.unsupported("media.timestamps", `${route.name} does not return timestamps`)
  if (
    request.format !== undefined &&
    FORMATS[request.format] === undefined &&
@@ -117,7 +120,7 @@ const finish = (state: State, context: MediaProtocol.ResponseContext<Request>) =
 // ---------------------------------------------------------------------------

 export const protocol = MediaProtocol.stream<Request, SpeechEvent, Uint8Array, State>(route, {
-  unsupported: ["voice", "language", "instructions", "timestamps"],
+  unsupported: ["voice", "language", "instructions"],
  body: { from: fromRequest },
  frames: (bytes) => bytes,
  initial: () => ({ chunks: [] }),
@@ -49,7 +49,7 @@ const QueueResult = Schema.StructWithRest(
 // ---------------------------------------------------------------------------

 const sizing = (model: string) => {
-  if (/^fal-ai\/(nano-banana|flux-pro\/v1\.1-ultra)/.test(model)) return "aspect_ratio"
+  if (/^fal-ai\/(nano-banana|flux-pro\/(v1\.1-ultra|kontext))/.test(model)) return "aspect_ratio"
  if (model.startsWith("fal-ai/flux")) return "image_size"
  return undefined
 }
@@ -63,20 +63,24 @@ const validate = (request: Request) => {
    return Effect.fail(route.unsupported("media.size", `${id} sizes by aspectRatio`))
  if (request.aspectRatio !== undefined && field === "image_size")
    return Effect.fail(route.unsupported("media.aspectRatio", `${id} sizes by size (image_size)`))
-  if ((request.images?.length ?? 0) > 1 && !isEdit(id))
+  if ((request.images?.length ?? 0) > 1 && !takesImageList(id))
    return Effect.fail(
-      route.unsupported("media.images", `${id} takes one image_url; use an /edit endpoint for several images`),
+      route.unsupported(
+        "media.images",
+        `${id} takes one image_url; use an /edit or /multi endpoint for several images`,
+      ),
    )
  return Effect.void
 }

-// `/edit` endpoints take an `image_urls` list; image-to-image, fill, and Ultra take one `image_url` (beside `mask_url`).
-const isEdit = (model: string) => model.endsWith("/edit")
+// `/edit` and `/multi` (Kontext) endpoints take an `image_urls` list; image-to-image, fill, and Ultra take one
+// `image_url` (beside `mask_url`).
+const takesImageList = (model: string) => model.endsWith("/edit") || model.endsWith("/multi")

 const fromRequest = Effect.fn("FalImages.fromRequest")(function* (request: Request) {
  yield* validate(request)
  const images = yield* Effect.forEach(request.images ?? [], (image) => FalQueue.mediaUrl(image, route.name))
-  const edit = isEdit(request.model.id)
+  const list = takesImageList(request.model.id)
  return MediaProtocol.json(
    mergeJsonRecords(
      {
@@ -86,8 +90,8 @@ const fromRequest = Effect.fn("FalImages.fromRequest")(function* (request: Reque
        image_size: request.size === undefined ? undefined : MediaInput.dimensions(request.size),
        aspect_ratio: request.aspectRatio,
        output_format: request.format,
-        image_urls: edit && images.length > 0 ? images : undefined,
-        image_url: edit ? undefined : images[0],
+        image_urls: list && images.length > 0 ? images : undefined,
+        image_url: list ? undefined : images[0],
        mask_url: request.mask === undefined ? undefined : yield* FalQueue.mediaUrl(request.mask, route.name),
      },
      request.providerOptions,
@@ -112,12 +116,14 @@ const decodeResult = Effect.fn("FalImages.decodeResult")(function* (
  // With the safety checker on, flagged images come back blacked out rather than omitted.
  const flagged = (has_nsfw_concepts ?? []).flatMap((value, index) => (value ? [index] : []))
  return new ImageResponse({
-    images: images.map((image) =>
-      Media.url(image.url, {
-        mediaType: image.content_type ?? undefined,
-        info: { width: image.width ?? undefined, height: image.height ?? undefined },
-      }),
-    ),
+    images: images.map((image) => {
+      const info = { width: image.width ?? undefined, height: image.height ?? undefined }
+      // `sync_mode: true` returns data URIs instead of hosted URLs.
+      return (
+        Media.parseDataUrl(image.url, { info }) ??
+        Media.url(image.url, { mediaType: image.content_type ?? undefined, info })
+      )
+    }),
    notices:
      flagged.length === 0
        ? undefined
@@ -101,7 +101,7 @@ const generationConfig = (request: Request) => {
 const fromRequest = Effect.fn("GoogleImages.fromRequest")(function* (request: Request) {
  if (request.n !== undefined && request.n > 1)
    return yield* route.unsupported(
-      "image.n",
+      "media.n",
      `${route.name} generates one image per request; call it once per image instead of n=${request.n}`,
    )
  const parts = yield* Effect.forEach(request.images ?? [], (image) =>
@@ -56,10 +56,18 @@ interface State extends SpeechStream.Audio, GeminiGenerateContent.Metadata {
 // ---------------------------------------------------------------------------

 const fromRequest = Effect.fn("GoogleSpeech.fromRequest")(function* (request: MediaProtocol.Addressed<Request>) {
+  // Not in `unsupported`: that list would also reject `timestamps: false`, which asks for nothing.
+  if (request.timestamps === true)
+    return yield* route.unsupported("media.timestamps", `${route.name} does not return timestamps`)
+  if (request.format === "pcm" && request.mode === "generate" && /^gemini-3\.8-.*-tts(?:-|$)/.test(request.model.id))
+    return yield* route.unsupported(
+      "media.format",
+      `${route.name} returns WAV by default for Gemini 3.8 TTS unary requests; omit the format to accept it`,
+    )
  if (request.format !== undefined && request.format !== "pcm")
    return yield* route.unsupported(
      "media.format",
-      `${route.name} only returns raw PCM; request format "pcm" or omit it, then wrap the samples yourself`,
+      `${route.name} only accepts raw PCM as an explicit format; omit it to accept the provider's default output`,
    )
  const voiceName = SpeechStream.voiceID(request.voice)
  return MediaProtocol.json(
@@ -97,10 +105,18 @@ const step = Effect.fn("GoogleSpeech.step")(function* (state: State, frame: stri
  return [next, audio.flatMap((part) => SpeechStream.delta(next, part.data)[1])] as const
 })

-const finish = (state: State) => {
+const finish = (state: State, context: MediaProtocol.ResponseContext<Request>) => {
  const sampleRate = SpeechStream.sampleRate(state.mimeType) ?? DEFAULT_SAMPLE_RATE
+  const output =
+    state.mimeType?.split(";")[0]?.toLowerCase() === "audio/wav"
+      ? SpeechStream.container("wav", sampleRate)
+      : SpeechStream.pcm("pcm_s16le", sampleRate, state.mimeType ?? `audio/L16;codec=pcm;rate=${sampleRate}`)
+  if (context.request.format === "pcm" && output.info.format !== "pcm")
+    return Effect.fail(
+      route.frameError(`Google Speech returned ${output.info.format} instead of the requested raw PCM`),
+    )
  return SpeechStream.finish(route, state, {
-    ...SpeechStream.pcm("pcm_s16le", sampleRate, state.mimeType ?? `audio/L16;codec=pcm;rate=${sampleRate}`),
+    ...output,
    usage: GeminiGenerateContent.usage(state.usage),
    providerMetadata: GeminiGenerateContent.providerMetadata(state),
    detail: state.finishReason === undefined ? undefined : `finish reason: ${state.finishReason}`,
@@ -112,7 +128,7 @@ const finish = (state: State) => {
 // ---------------------------------------------------------------------------

 export const protocol = MediaProtocol.stream<Request, SpeechEvent, string, State>(route, {
-  unsupported: ["instructions", "speed", "timestamps"],
+  unsupported: ["instructions", "speed"],
  body: { from: fromRequest },
  frames: (bytes, context) => GeminiGenerateContent.frames(bytes, context.request.mode),
  initial: () => ({ chunks: [] }),
@@ -149,8 +149,7 @@ const decodeResult = Effect.fn("GoogleVideo.decodeResult")(function* (
  const output = yield* decodeOperation(response)
  const operation = output.value
  const status = statusOf(operation)
-  if (status === "running")
-    return yield* output.invalid(`${route.name} operation ${context.token.operation} has not finished`)
+  if (status === "running") return yield* output.pending(context.token.operation)
  if (status === "failed")
    return yield* output.ended(
      "failed",
@@ -48,15 +48,17 @@ const Usage = Schema.Struct({
  output_tokens_details: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
 })

-const OpenAIImageResponse = Schema.Struct({
-  data: Schema.Array(
-    Schema.Struct({
-      b64_json: Schema.optional(Schema.String),
-      url: Schema.optional(Schema.String),
-      revised_prompt: Schema.optional(Schema.String),
-    }),
-  ),
+/** What the provider actually rendered; it can differ from the request when `auto` or a default applied. */
+const Settings = {
  output_format: Schema.optional(Schema.String),
+  size: Schema.optional(Schema.String),
+  quality: Schema.optional(Schema.String),
+  background: Schema.optional(Schema.String),
+}
+
+const OpenAIImageResponse = Schema.Struct({
+  data: Schema.Array(Schema.Struct({ b64_json: Schema.String })),
+  ...Settings,
  usage: Schema.optional(Usage),
 })

@@ -69,11 +71,13 @@ const StreamEvent = Schema.Union([
    type: Schema.Literals(["image_generation.partial_image", "image_edit.partial_image"]),
    b64_json: Schema.String,
    partial_image_index: Schema.Number,
+    ...Settings,
    output_format: Schema.String,
  }),
  Schema.Struct({
    type: Schema.Literals(["image_generation.completed", "image_edit.completed"]),
    b64_json: Schema.String,
+    ...Settings,
    output_format: Schema.String,
    usage: Schema.optional(Usage),
  }),
@@ -92,6 +96,9 @@ type Frame = string | { readonly document: string; readonly requested: string |
 interface State {
  readonly completed: number
  readonly format?: string
+  readonly size?: string
+  readonly quality?: string
+  readonly background?: string
  readonly usage?: MediaUsage
 }

@@ -110,10 +117,6 @@ const nativeOptions = (options: OpenAIImageOptions | undefined) => {

 const streamOptions = (request: MediaProtocol.Addressed<Request>) => {
  if (request.mode !== "stream") return Effect.succeed(undefined)
-  if (request.model.id.startsWith("dall-e"))
-    return Effect.fail(
-      route.unsupported("media.stream", `${request.model.id} does not stream; use Image.generate or a GPT image model`),
-    )
  if (request.n !== undefined && request.n > 1)
    return Effect.fail(
      route.unsupported("media.n", `${route.name} streams one image; use Image.generate for n=${request.n}`),
@@ -194,21 +197,34 @@ const usage = (value: Schema.Schema.Type<typeof Usage> | undefined): MediaUsage
        details: { openai: value },
      }

-const eventImage = (frame: string, label: string, data: string, format: string) =>
+/** `size` echoes the rendered `WIDTHxHEIGHT`; `auto` or any other value leaves the dimensions unknown. */
+const info = (format: string, size: string | undefined): Media.Info => {
+  const match = size?.match(/^(\d+)x(\d+)$/)
+  return match ? { format, width: Number(match[1]), height: Number(match[2]) } : { format }
+}
+
+const eventImage = (frame: string, label: string, data: string, format: string, size: string | undefined) =>
  MediaInput.decodedAsset((message, cause) => route.frameError(message, frame, cause), label, data, `image/${format}`, {
-    info: { format },
+    info: info(format, size),
  })

 const onEvent = Effect.fn("OpenAIImages.onEvent")(function* (state: State, frame: string) {
  const event = yield* decodeEvent(frame)
  const format = event.output_format
  if ("partial_image_index" in event) {
-    const image = yield* eventImage(frame, `${route.name} partial image`, event.b64_json, format)
+    const image = yield* eventImage(frame, `${route.name} partial image`, event.b64_json, format, event.size)
    return [state, [ImagePartialEvent.make({ index: event.partial_image_index, image })]] as const
  }
-  const image = yield* eventImage(frame, `${route.name} result ${state.completed}`, event.b64_json, format)
+  const image = yield* eventImage(frame, `${route.name} result ${state.completed}`, event.b64_json, format, event.size)
  return [
-    { ...state, completed: state.completed + 1, format, usage: usage(event.usage) },
+    {
+      completed: state.completed + 1,
+      format,
+      size: event.size,
+      quality: event.quality,
+      background: event.background,
+      usage: usage(event.usage),
+    },
    [ImageOutputEvent.make({ index: state.completed, image })],
  ] as const
 })
@@ -219,16 +235,20 @@ const onDocument = Effect.fn("OpenAIImages.onDocument")(function* (frame: Exclud
    Effect.mapError((cause) => invalid(`${route.name} returned an invalid response`, cause)),
  )
  const format = decoded.output_format ?? frame.requested ?? "png"
-  const mediaType = `image/${format}`
  const images = yield* Effect.forEach(decoded.data, (item, index) =>
-    MediaInput.imageOutput(invalid, `${route.name} result ${index}`, item, mediaType, {
-      info: { format },
-      providerMetadata:
-        item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } },
+    MediaInput.decodedAsset(invalid, `${route.name} result ${index}`, item.b64_json, `image/${format}`, {
+      info: info(format, decoded.size),
    }),
  )
  if (images.length === 0) return yield* invalid(`${route.name} returned no images`)
-  const state: State = { completed: images.length, format, usage: usage(decoded.usage) }
+  const state: State = {
+    completed: images.length,
+    format,
+    size: decoded.size,
+    quality: decoded.quality,
+    background: decoded.background,
+    usage: usage(decoded.usage),
+  }
  return [state, images.map((image, index) => ImageOutputEvent.make({ index, image }))] as const
 })

@@ -237,7 +257,17 @@ const step = (state: State, frame: Frame) => (typeof frame === "string" ? onEven
 const finish = (state: State) => {
  if (state.completed === 0) return Effect.fail(route.incomplete())
  return Effect.succeed([
-    ImageFinishEvent.make({ usage: state.usage, providerMetadata: { openai: { outputFormat: state.format } } }),
+    ImageFinishEvent.make({
+      usage: state.usage,
+      providerMetadata: {
+        openai: {
+          outputFormat: state.format,
+          size: state.size,
+          quality: state.quality,
+          background: state.background,
+        },
+      },
+    }),
  ])
 }

@@ -143,12 +143,14 @@ const adapter = {
  restoreHostedToolItem: (item: unknown) => (Schema.is(OpenAIResponsesHostedToolItem)(item) ? item : undefined),
 } satisfies OpenResponses.ProviderAdapter

-// Only GPT-6 Astra accepts `configuration_update`, and never alongside automatic `context_management` compaction.
+// GPT-6 Astra, Sol, and Luna accept `configuration_update` only in standard mode (not `reasoning.mode: "pro"` or
+// `-pro` slugs), and never alongside automatic `context_management` compaction.
 const supportsEffortUpdates = (request: LLMRequest) => {
  if (request.providerOptions?.contextManagement !== undefined) return false
+  if (Schema.is(Schema.Struct({ mode: Schema.Literal("pro") }))(request.http?.body?.reasoning)) return false
  const override = request.model.compatibility?.supportsEffortUpdates
  if (override !== undefined) return override
-  return /(?:^|\/)gpt-6-astra$/i.test(request.model.id)
+  return /(?:^|\/)gpt-6-(?:astra|sol|luna)$/i.test(request.model.id)
 }

 const nativeImageToolInput = (tool: ToolDefinition) => {
@@ -61,6 +61,9 @@ interface State extends SpeechStream.Audio {
 const supportsSse = (model: string) => !/^tts-1(-hd)?(-|$)/.test(model)

 const fromRequest = Effect.fn("OpenAISpeech.fromRequest")(function* (request: MediaProtocol.Addressed<Request>) {
+  // Not in `unsupported`: that list would also reject `timestamps: false`, which asks for nothing.
+  if (request.timestamps === true)
+    return yield* route.unsupported("media.timestamps", `${route.name} does not return timestamps`)
  return MediaProtocol.json(
    mergeJsonRecords(
      {
@@ -121,7 +124,7 @@ const finish = (state: State, context: MediaProtocol.ResponseContext<Request>) =
 // ---------------------------------------------------------------------------

 export const protocol = MediaProtocol.stream<Request, SpeechEvent, string | Uint8Array, State>(route, {
-  unsupported: ["language", "timestamps"],
+  unsupported: ["language"],
  body: { from: fromRequest },
  frames: (bytes, context) => (isSse(context.body) ? Framing.sse.frame(bytes) : bytes),
  initial: () => ({ chunks: [], done: false }),
@@ -1,8 +1,9 @@
 import { Effect, Schema, Stream } from "effect"
+import { classifyProviderFailure } from "../provider-error.js"
 import { Framing } from "../route/framing.js"
 import { MediaProtocol } from "../route/media-protocol.js"
 import { MediaRoute } from "../route/media.js"
-import { mergeJsonRecords, type MediaUsage } from "../schema/index.js"
+import { AIError, mergeJsonRecords, type MediaUsage } from "../schema/index.js"
 import {
  TranscriptionFinishEvent,
  TranscriptionModel,
@@ -59,6 +60,9 @@ const Usage = Schema.Union([
    input_tokens: Schema.optional(Schema.Number),
    output_tokens: Schema.optional(Schema.Number),
    total_tokens: Schema.optional(Schema.Number),
+    input_token_details: Schema.optional(
+      Schema.Struct({ audio_tokens: Schema.optional(Schema.Number), text_tokens: Schema.optional(Schema.Number) }),
+    ),
  }),
  Schema.Struct({ type: Schema.Literal("duration"), seconds: Schema.Number }),
 ])
@@ -75,14 +79,23 @@ const transcriptFields = {
  usage: Schema.optional(Usage),
 }

+/** OpenAI may add stream event types; frames outside `EVENT_TYPES` are ignored. */
+const EventType = Schema.Struct({ type: Schema.String })
 const Event = Schema.Union([
  Schema.Struct({ type: Schema.Literal("transcript.text.delta"), delta: Schema.String }),
  Schema.Struct({ type: Schema.Literal("transcript.text.segment"), ...Segment.fields }),
  Schema.Struct({ type: Schema.Literal("transcript.text.done"), ...transcriptFields }),
+  Schema.Struct({
+    type: Schema.Literal("error"),
+    message: Schema.optional(Schema.String),
+    error: Schema.optional(Schema.Struct({ message: Schema.optional(Schema.String) })),
+  }),
 ])
+const EVENT_TYPES = new Set(["transcript.text.delta", "transcript.text.segment", "transcript.text.done", "error"])
 const Transcript = Schema.Struct(transcriptFields)
 type Transcript = Schema.Schema.Type<typeof Transcript>

+const decodeEventType = route.decodeFrame(EventType)
 const decodeEvent = route.decodeFrame(Event)
 const decodeTranscript = route.decodeFrame(Transcript)

@@ -118,10 +131,12 @@ const capabilities = (model: string): Capabilities => {
  return TRANSCRIBE
 }

+/** whisper-1 ignores `stream`, so its `stream` mode sends a plain request and emits only `finish`. */
+const streamsEvents = (request: MediaProtocol.Addressed<Request>) =>
+  request.mode === "stream" && capabilities(request.model.id).stream
+
 const validate = (request: MediaProtocol.Addressed<Request>, model: Capabilities) => {
  const id = request.model.id
-  if (request.mode === "stream" && !model.stream)
-    return Effect.fail(route.unsupported("media.stream", `${id} does not stream; use Transcription.generate`))
  if (request.diarize === true && !model.diarize)
    return Effect.fail(route.unsupported("media.diarize", `${id} does not diarize; use gpt-4o-transcribe-diarize`))
  if (request.prompt !== undefined && model.diarize)
@@ -173,7 +188,7 @@ const fromRequest = Effect.fn("OpenAITranscription.fromRequest")(function* (requ
      timestamp_granularities: responseFormat === "verbose_json" ? [request.timestamps] : undefined,
      // Diarizing audio longer than 30 seconds requires a chunking strategy.
      chunking_strategy: model.diarize ? "auto" : undefined,
-      stream: request.mode === "stream" ? true : undefined,
+      stream: streamsEvents(request) ? true : undefined,
    },
    {
      overlay: mergeJsonRecords(request.providerOptions, request.http?.body),
@@ -196,7 +211,15 @@ const segment = (value: Schema.Schema.Type<typeof Segment>): TranscriptionSegmen
 })

 const onEvent = Effect.fn("OpenAITranscription.onEvent")(function* (state: State, frame: string) {
+  if (!EVENT_TYPES.has((yield* decodeEventType(frame)).type)) return [state, []] as const
  const event = yield* decodeEvent(frame)
+  if (event.type === "error")
+    return yield* new AIError({
+      reason: classifyProviderFailure({
+        message: `${route.name} stream failed: ${event.message ?? event.error?.message ?? "unknown error"}`,
+        rawBody: frame,
+      }),
+    })
  if (event.type === "transcript.text.done") return [{ ...state, transcript: event }, []] as const
  if (event.type === "transcript.text.delta")
    return [state, event.delta.length === 0 ? [] : [TranscriptionTextDeltaEvent.make({ delta: event.delta })]] as const
@@ -246,7 +269,7 @@ export const protocol = MediaProtocol.stream<Request, TranscriptionEvent, Frame,
  unsupported: ["speakers"],
  body: { from: fromRequest },
  frames: (bytes, context) =>
-    context.request.mode === "stream"
+    streamsEvents(context.request)
      ? Framing.sse.frame(bytes)
      : Framing.document.frame(bytes).pipe(Stream.map((document) => ({ document }))),
  initial: () => ({ segments: [] }),
@@ -132,8 +132,7 @@ const decodeResult = Effect.fn("ReplicateImages.decodeResult")(function* (
      status,
      `${route.name} prediction ${context.token.id} ${prediction.status}${typeof prediction.error === "string" ? `: ${prediction.error}` : ""}`,
    )
-  if (status !== "completed")
-    return yield* output.invalid(`${route.name} prediction ${context.token.id} has not finished`)
+  if (status !== "completed") return yield* output.pending(context.token.id)
  if (prediction.data_removed === true)
    return yield* output.ended("expired", `${route.name} removed the output of prediction ${context.token.id}`)
  if (!isOutput(prediction.output))
@@ -141,8 +141,7 @@ const decodeResult = Effect.fn("RunwayVideo.decodeResult")(function* (
  }
  if (status === "cancelled")
    return yield* output.ended("cancelled", `${route.name} task ${context.token.taskID} was cancelled`)
-  if (status !== "completed")
-    return yield* output.invalid(`${route.name} task ${context.token.taskID} has not finished`)
+  if (status !== "completed") return yield* output.pending(context.token.taskID)
  const urls = task.output ?? []
  if (urls.length === 0) return yield* output.invalid(`${route.name} task succeeded without any output`)
  return new VideoResponse({
@@ -171,7 +170,7 @@ export const protocol = MediaProtocol.queued<Request, VideoResponse, Token>(rout
  start: { body: { from: fromRequest }, decode: decodeStart },
  status: { path: taskPath, decode: decodeStatus },
  result: { path: taskPath, decode: decodeResult },
-  cancel: { method: "DELETE", path: taskPath },
+  cancel: { method: "DELETE", path: taskPath, activeOnly: true },
 })

 const startPath = (request: Request) => {
@@ -175,7 +175,7 @@ const decodeUpscaleResult = Effect.fn("StabilityImages.decodeUpscaleResult")(fun
 ) {
  if (response.status === 202) {
    const output = yield* upscaleRoute.text(response)
-    return yield* output.invalid(`${upscaleRoute.name} upscale ${context.token.id} has not finished`)
+    return yield* output.pending(context.token.id)
  }
  return yield* decodeUpscaleImage(response)
 })
@@ -101,7 +101,8 @@ const decodeResponse = Effect.fn("XAIImages.decodeResponse")(function* (
  )
  if (images.length === 0) return yield* output.invalid(`${route.name} returned no images`)
  const usage = ProviderShared.isRecord(decoded.usage) ? decoded.usage : undefined
-  // xAI reports image counts rather than tokens, seconds, or credits; the raw record stays in provider metadata.
+  // xAI reports a USD cost (`cost_in_usd_ticks`) rather than tokens, seconds, or credits; the raw record stays in
+  // provider metadata.
  return new ImageResponse({
    images,
    providerMetadata: usage === undefined ? undefined : { xai: { usage } },
@@ -136,8 +136,7 @@ const decodeResult = Effect.fn("XAIVideo.decodeResult")(function* (
  const output = yield* decodeVideoStatus(response)
  const decoded = output.value
  const status = yield* MediaProtocol.status(STATUS, decoded.status, output)
-  if (status === "running")
-    return yield* output.invalid(`${route.name} request ${context.token.requestID} has not finished`)
+  if (status === "running") return yield* output.pending(context.token.requestID)
  if (status === "failed") {
    const code = decoded.error?.code ?? undefined
    const message = decoded.error?.message ?? undefined
@@ -1,7 +1,6 @@
-import { Effect, Schema } from "effect"
+import { Duration, Effect, Schema } from "effect"
 import type { HttpClientResponse } from "effect/unstable/http"
 import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
 import { MediaProtocol } from "../route/media-protocol.js"
 import { MediaRoute } from "../route/media.js"
 import { mergeJsonRecords, type OpenString } from "../schema/index.js"
@@ -9,6 +8,7 @@ import { mergeJsonRecords, type OpenString } from "../schema/index.js"
 const route = MediaProtocol.identity({ id: "zai-images", name: "Z.ai Images", provider: "zai" })
 export const DEFAULT_BASE_URL = "https://api.z.ai/api/paas/v4"
 export const PATH = "/images/generations"
+const OUTPUT_RETENTION = Duration.days(30)

 // ---------------------------------------------------------------------------
 // 1. Public model input
@@ -76,7 +76,7 @@ const decodeResponse = Effect.fn("ZAIImages.decodeResponse")(function* (
  const filters = decoded.content_filter ?? []
  return new ImageResponse({
    // Z.ai returns only URLs and no content type; the media type resolves when the asset is materialized.
-    images: decoded.data.map((item) => Media.url(item.url)),
+    images: yield* Effect.forEach(decoded.data, (item) => MediaProtocol.expiringUrl(item.url, OUTPUT_RETENTION)),
    // Z.ai reports applied content filters alongside a successful result; surface them instead of dropping them.
    notices:
      filters.length === 0
@@ -137,6 +137,11 @@ export interface Queued<Request, Response, Token> {
  readonly cancel?: {
    readonly method: AuthInput["method"]
    readonly path: (token: Token) => string
+    /**
+     * Fetch a fresh status first and skip the call for terminal generations, for providers whose cancel endpoint
+     * destroys finished work (Runway's `DELETE /v1/tasks/{id}` deletes completed tasks and their outputs).
+     */
+    readonly activeOnly?: boolean
  }
 }

@@ -195,7 +200,8 @@ export const identity = (input: { readonly id: string; readonly name: string; re
  /**
   * Read a text body while retaining the original payload and HTTP context on every downstream error. `invalid` is a
   * malformed provider document; `ended` is a generation that reached a terminal status without output (`failed` is
-   * provider-side, `cancelled`/`expired` mean the result will never exist); `contentPolicy` is a moderated result.
+   * provider-side, `cancelled`/`expired` mean the result will never exist); `pending` is a `result()` read before the
+   * generation finished, which is caller misuse; `contentPolicy` is a moderated result.
   */
  const text = Effect.fn("MediaProtocol.text")(function* (response: HttpClientResponse.HttpClientResponse) {
    const http = context(response)
@@ -224,6 +230,14 @@ export const identity = (input: { readonly id: string; readonly name: string; re
              ? new ProviderInternalError({ message, body, http })
              : new InvalidRequestError({ message, body, http }),
        }),
+      pending: (id: string) =>
+        new AIError({
+          reason: new InvalidRequestError({
+            message: `${input.name} generation ${id} has not finished; await it before reading the result`,
+            body,
+            http,
+          }),
+        }),
      contentPolicy: (message: string) => new AIError({ reason: new ContentPolicyError({ message, body, http }) }),
    }
  })
@@ -285,9 +299,8 @@ export const status = <Table extends Record<string, Status>>(
  raw: string,
  output: Output,
 ): Effect.Effect<Status, AIError> => {
-  const normalized: Status | undefined = table[raw]
-  if (normalized === undefined) return Effect.fail(output.invalid(`Unknown generation status "${raw}"`))
-  return Effect.succeed(normalized)
+  if (!Object.hasOwn(table, raw)) return Effect.fail(output.invalid(`Unknown generation status "${raw}"`))
+  return Effect.succeed(table[raw])
 }

 /** A `url` asset whose provider-declared retention window starts now. */
@@ -5,7 +5,7 @@ import { Endpoint } from "./endpoint.js"
 import { RequestExecutorService, type Interface } from "./executor-service.js"
 import { RequestExecutor } from "./executor.js"
 import { MediaProtocol } from "./media-protocol.js"
-import { Generation } from "../generation.js"
+import { Generation, isTerminal } from "../generation.js"
 import type { Media } from "../media.js"
 import {
  AIError,
@@ -164,14 +164,19 @@ export const queued = <Request extends MediaRequest, Response, Token>(
      transport
        .call("GET", operation.path(token), http, execute)
        .pipe(Effect.flatMap((sent) => operation.decode(sent.response, { token, auth: sent.auth, materialize })))
+    const status = poll(protocol.status)
    const cancel = protocol.cancel
+    const send =
+      cancel === undefined
+        ? undefined
+        : transport.call(cancel.method, cancel.path(token), http, execute).pipe(Effect.asVoid)
    return {
-      status: poll(protocol.status),
+      status,
      result: poll(protocol.result),
      cancel:
-        cancel === undefined
-          ? undefined
-          : transport.call(cancel.method, cancel.path(token), http, execute).pipe(Effect.asVoid),
+        send !== undefined && cancel?.activeOnly
+          ? status.pipe(Effect.flatMap((snapshot) => (isTerminal(snapshot.status) ? Effect.void : send)))
+          : send,
    }
  }

@@ -380,7 +385,11 @@ const encode = (body: MediaProtocol.Body | undefined, headers: Headers.Headers)
  }
 }

-/** Common fields are never silently dropped: a present field the protocol declared unsupported fails typed. */
+/**
+ * Common fields are never silently dropped: a present field the protocol declared unsupported fails typed. `false`
+ * counts as present because some booleans mean something when false (video `audio`); protocols reject opt-in
+ * booleans such as speech `timestamps` with `=== true` in `body.from` instead of listing them.
+ */
 const rejectUnsupported = <Request extends object>(
  route: string,
  provider: ProviderID,
@@ -351,10 +351,34 @@ describe("OpenAI Responses effort updates", () => {
    }),
  )

+  it.effect("strips markers when the body overlay selects pro reasoning mode", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenAI.configure({ apiKey: "fixture", http: { body: { reasoning: { mode: "pro" } } } }).responses(
+            "gpt-6-sol",
+          ),
+          messages: conversation,
+          providerOptions: { reasoningEffort: "low" },
+        }),
+      )
+
+      expect(updates(prepared.body)).toEqual([])
+      expect(prepared.body.reasoning).toEqual({ effort: "low" })
+    }),
+  )
+
  for (const [id, supported] of [
    ["gpt-6-astra", true],
    ["openai/gpt-6-astra", true],
+    ["gpt-6-sol", true],
+    ["openai/gpt-6-sol", true],
+    ["gpt-6-luna", true],
+    ["openai/gpt-6-luna", true],
    ["gpt-6-astra-2026-09-01", false],
+    ["gpt-6-sol-pro", false],
+    ["gpt-6-luna-pro", false],
+    ["gpt-6-sol-fast", false],
    ["gpt-5.6-sol", false],
  ] as const) {
    it.effect(`${supported ? "lowers" : "strips"} markers for ${id}`, () =>
@@ -23,6 +23,7 @@ import { Provider as ProviderSubpath } from "@opencode/ai/provider"
 import {
  AssemblyAI,
  Baseten,
+  BlackForestLabs,
  Cartesia,
  CloudflareAIGateway,
  CloudflareWorkersAI,
@@ -32,14 +33,18 @@ import {
  Fal,
  Fireworks,
  Google,
+  Meta,
  OpenCodeZen,
  OpenAI,
  OpenAICompatible,
  OpenRouter,
+  Replicate,
  Runway,
+  Stability,
  TypeSafeAI,
  VercelAIGateway,
  XAI,
+  ZAI,
 } from "@opencode/ai/providers"
 import {
  OpenAIChat,
@@ -151,8 +156,34 @@ describe("public exports", () => {
    expect(XAI.provider.chat).toBe(XAI.chat)
    expect(XAI.configure({ apiKey: "fixture" }).responses("grok-4.3").route.id).toBe("openai-responses")
    expect(XAI.configure({ apiKey: "fixture" }).chat("grok-4.3").route.id).toBe("openai-compatible-chat")
+    expect(OpenAI.configure({ apiKey: "fixture" }).image("gpt-image-2").route.id).toBe("openai-images")
+    expect(OpenAI.provider.image).toBe(OpenAI.image)
+    expect(Google.configure({ apiKey: "fixture" }).image("imagen-4.0-generate-001").route.id).toBe("google-images")
+    expect(Google.provider.image).toBe(Google.image)
+    expect(XAI.configure({ apiKey: "fixture" }).image("grok-imagine-image").route.id).toBe("xai-images")
+    expect(XAI.provider.image).toBe(XAI.image)
+    expect(Fal.configure({ apiKey: "fixture" }).image("fal-ai/flux/dev").route.id).toBe("fal-images")
+    expect(Fal.provider.image).toBe(Fal.image)
+    expect(BlackForestLabs.configure({ apiKey: "fixture" }).image("flux-2-pro").route.id).toBe("bfl-images")
+    expect(BlackForestLabs.provider.image).toBe(BlackForestLabs.image)
+    expect(Replicate.configure({ apiKey: "fixture" }).image("black-forest-labs/flux-schnell").route.id).toBe(
+      "replicate-images",
+    )
+    expect(Replicate.provider.image).toBe(Replicate.image)
+    expect(Stability.configure({ apiKey: "fixture" }).image("sd3.5-large").route.id).toBe("stability-images")
+    expect(Stability.provider.image).toBe(Stability.image)
+    expect(Stability.configure({ apiKey: "fixture" }).upscale().route.id).toBe("stability-upscale")
+    expect(Stability.provider.upscale).toBe(Stability.upscale)
+    expect(Meta.configure({ apiKey: "fixture" }).image("muse-image").route.id).toBe("meta-images")
+    expect(Meta.provider.image).toBe(Meta.image)
+    expect(ZAI.configure({ apiKey: "fixture" }).image("glm-image").route.id).toBe("zai-images")
+    expect(ZAI.provider.image).toBe(ZAI.image)
    expect(XAI.configure({ apiKey: "fixture" }).video("grok-imagine-video-1.5").route.id).toBe("xai-video")
+    expect(XAI.provider.video).toBe(XAI.video)
+    expect(Google.configure({ apiKey: "fixture" }).video("veo-3.1-generate-preview").route.id).toBe("google-video")
+    expect(Google.provider.video).toBe(Google.video)
    expect(Fal.configure({ apiKey: "fixture" }).video("fal-ai/veo3.1").route.id).toBe("fal-video")
+    expect(Fal.provider.video).toBe(Fal.video)
    expect(Runway.configure({ apiKey: "fixture" }).video("gen4.5").route.id).toBe("runway-video")
    expect(Runway.provider.video).toBe(Runway.video)
    expect(OpenAI.configure({ apiKey: "fixture" }).speech("gpt-4o-mini-tts").route.id).toBe("openai-speech")
@@ -97,6 +97,26 @@ describe("Generation", () => {
    }),
  )

+  it.effect("fails an event stream at the deadline when the poll interval is longer than the timeout", () =>
+    Effect.gen(function* () {
+      const scripted = yield* scriptedRoute(["running"], "never")
+      const generation = new Generation(scripted.route, "t", { id: "gen_1", status: "queued" })
+
+      const fiber = yield* Effect.forkChild(
+        generation
+          .events({ poll: { interval: "30 seconds", timeout: "10 seconds" } })
+          .pipe(Stream.runCollect, Effect.flip),
+      )
+      yield* TestClock.adjust("9 seconds")
+      expect(fiber.pollUnsafe()).toBeUndefined()
+      yield* TestClock.adjust("1 second")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason._tag).toBe("Timeout")
+      expect(yield* Ref.get(scripted.polls)).toBe(1)
+    }),
+  )
+
  it.effect("surfaces the route failure body for failed generations", () =>
    Effect.gen(function* () {
      const scripted = yield* scriptedRoute(["running", "failed"], "unused")
@@ -78,8 +78,11 @@ describe("Image", () => {
        mediaType: "image/webp",
      })
      expect(yield* response.image.bytes()).toEqual(Uint8Array.from([1, 2, 3]))
-      expect(response.image.providerMetadata).toEqual({ openai: { revisedPrompt: "A precise robot" } })
+      expect(response.image.info).toEqual({ format: "webp", width: 2048, height: 2048 })
      expect(response.usage).toMatchObject({ type: "tokens", total: 12 })
+      expect(response.providerMetadata).toEqual({
+        openai: { outputFormat: "webp", size: "2048x2048", quality: "high", background: "opaque" },
+      })
    }).pipe(
      Effect.provide(
        ImageClient.layer.pipe(
@@ -107,8 +110,11 @@ describe("Image", () => {
                })
                return input.respond(
                  JSON.stringify({
-                    data: [{ b64_json: "AQID", revised_prompt: "A precise robot" }, { b64_json: "BAUG" }],
+                    data: [{ b64_json: "AQID" }, { b64_json: "BAUG" }],
                    output_format: "webp",
+                    size: "2048x2048",
+                    quality: "high",
+                    background: "opaque",
                    usage: { input_tokens: 4, output_tokens: 8, total_tokens: 12 },
                  }),
                  { headers: { "content-type": "application/json" } },
@@ -144,6 +150,7 @@ describe("Image", () => {
        ),
      )
      expect(response.image.source).toEqual({ type: "bytes", data: Uint8Array.from([1, 2, 3]), mediaType: "image/png" })
+      expect(response.image.info).toEqual({ format: "png" })
    }),
  )

@@ -725,6 +732,7 @@ describe("Image", () => {
      const errors = yield* Effect.all(
        [
          Image.start({ model: Google.configure({ apiKey: "test" }).image("gemini-3.1-flash-image"), prompt }),
+          Image.generate({ model: Google.configure({ apiKey: "test" }).image("gemini-3.1-flash-image"), prompt, n: 2 }),
          Image.start({
            model: BlackForestLabs.configure({ apiKey: "test" }).image("flux-2-pro"),
            prompt,
@@ -735,7 +743,6 @@ describe("Image", () => {
            prompt,
            size: "512x512",
          }),
-          Stream.runCollect(Image.stream({ model: openai.image("dall-e-3"), prompt })),
          Stream.runCollect(Image.stream({ model: openai.image("gpt-image-2"), prompt, n: 2 })),
          Image.start({ model: replicate, prompt, seed: 7 }),
          Image.start({
@@ -749,9 +756,9 @@ describe("Image", () => {
      expect(errors.map((error) => [error.reason._tag, "operation" in error.reason && error.reason.operation])).toEqual(
        [
          ["UnsupportedOperation", "image.start"],
+          ["UnsupportedOperation", "media.n"],
          ["UnsupportedOperation", "media.aspectRatio"],
          ["UnsupportedOperation", "media.size"],
-          ["UnsupportedOperation", "media.stream"],
          ["UnsupportedOperation", "media.n"],
          ["UnsupportedOperation", "media.seed"],
          ["InvalidRequest", false],
@@ -761,6 +768,80 @@ describe("Image", () => {
    }).pipe(Effect.provide(layer(() => Effect.die("an unsupported request reached the network")))),
  )

+  const falToken = {
+    requestID: "r1",
+    statusURL: "https://queue.fal.test/fal-ai/flux/requests/r1/status",
+    responseURL: "https://queue.fal.test/fal-ai/flux/requests/r1",
+    cancelURL: "https://queue.fal.test/fal-ai/flux/requests/r1/cancel",
+  }
+  const falSubmitted = {
+    request_id: falToken.requestID,
+    status_url: falToken.statusURL,
+    response_url: falToken.responseURL,
+    cancel_url: falToken.cancelURL,
+  }
+  const bodies: Array<unknown> = []
+  it.effect("sizes fal Kontext by aspect ratio and sends several images to /multi", () =>
+    Effect.gen(function* () {
+      const fal = Fal.configure({ apiKey: "test", baseURL: "https://queue.fal.test" })
+      const images = [Media.url("https://example.test/a.png"), Media.url("https://example.test/b.png")]
+      const rejected = yield* Image.start({
+        model: fal.image("fal-ai/flux-pro/kontext"),
+        prompt: "A lighthouse",
+        size: "512x512",
+      }).pipe(Effect.flip)
+      yield* Image.start({
+        model: fal.image("fal-ai/flux-pro/kontext"),
+        prompt: "A lighthouse",
+        images: images.slice(0, 1),
+        aspectRatio: "16:9",
+      })
+      yield* Image.start({ model: fal.image("fal-ai/flux-pro/kontext/max/multi"), prompt: "A lighthouse", images })
+
+      expect(rejected.reason).toMatchObject({ _tag: "UnsupportedOperation", operation: "media.size" })
+      expect(bodies).toEqual([
+        { prompt: "A lighthouse", aspect_ratio: "16:9", image_url: "https://example.test/a.png" },
+        { prompt: "A lighthouse", image_urls: ["https://example.test/a.png", "https://example.test/b.png"] },
+      ])
+    }).pipe(
+      Effect.provide(
+        layer((input) => {
+          bodies.push(JSON.parse(input.text))
+          return Effect.succeed(json(input, falSubmitted))
+        }),
+      ),
+    ),
+  )
+
+  it.effect("decodes fal sync_mode data URIs as inline images", () =>
+    Effect.gen(function* () {
+      const generation = yield* Image.resume(Fal.configure({ apiKey: "test" }).image("fal-ai/flux/schnell"), falToken)
+      const response = yield* generation.await()
+
+      expect(response.images.map((image) => image.source)).toEqual([
+        { type: "base64", data: "AQID", mediaType: "image/png" },
+        { type: "url", url: "https://v3.fal.media/out.jpg", mediaType: "image/jpeg" },
+      ])
+      expect(response.image.info).toEqual({ width: 512, height: 512 })
+      expect(yield* response.image.bytes()).toEqual(Uint8Array.from([1, 2, 3]))
+    }).pipe(
+      Effect.provide(
+        layer((input) =>
+          Effect.succeed(
+            input.request.url === falToken.statusURL
+              ? json(input, { status: "COMPLETED" })
+              : json(input, {
+                  images: [
+                    { url: "data:image/png;base64,AQID", width: 512, height: 512, content_type: "image/png" },
+                    { url: "https://v3.fal.media/out.jpg", width: 512, height: 512, content_type: "image/jpeg" },
+                  ],
+                }),
+          ),
+        ),
+      ),
+    ),
+  )
+
  const moderated = { id: "req_1", status: "Content Moderated" }
  const prediction = {
    id: "p_1",
@@ -768,6 +849,56 @@ describe("Image", () => {
    output: { text: "not an image" },
    urls: { get: "https://replicate.test/p_1", cancel: "https://replicate.test/p_1/cancel" },
  }
+  for (const pending of [
+    {
+      model: BlackForestLabs.configure({ apiKey: "test" }).image("flux-2-pro"),
+      token: { id: "req_1", pollingURL: "https://bfl.test/v1/get_result?id=req_1" },
+      status: 200,
+      body: { id: "req_1", status: "Pending" },
+      message: "Black Forest Labs generation req_1",
+    },
+    {
+      model: Replicate.configure({ apiKey: "test" }).image("owner/model"),
+      token: { id: "p_1", getURL: "https://replicate.test/p_1", cancelURL: "https://replicate.test/p_1/cancel" },
+      status: 200,
+      body: {
+        id: "p_1",
+        status: "processing",
+        urls: { get: "https://replicate.test/p_1", cancel: "https://replicate.test/p_1/cancel" },
+      },
+      message: "Replicate generation p_1",
+    },
+    {
+      model: Stability.configure({ apiKey: "test", baseURL: "https://stability.test" }).upscale(),
+      token: { id: "up_1" },
+      status: 202,
+      body: { id: "up_1", status: "in-progress" },
+      message: "Stability AI generation up_1",
+    },
+  ]) {
+    it.effect(`rejects reading a ${pending.model.provider} result before the generation finishes`, () =>
+      Effect.gen(function* () {
+        const generation = yield* Image.resume(pending.model, pending.token)
+        const error = yield* generation.result().pipe(Effect.flip)
+        expect(error.reason._tag).toBe("InvalidRequest")
+        expect(error.message).toBe(`${pending.message} has not finished; await it before reading the result`)
+        expect(error.reason.body).toBe(JSON.stringify(pending.body))
+        expect(error.reason.http?.status).toBe(pending.status)
+      }).pipe(
+        Effect.provide(
+          layer((input) =>
+            Effect.succeed(
+              input.respond(JSON.stringify(pending.body), {
+                status: pending.status,
+                headers: { "content-type": "application/json" },
+              }),
+            ),
+          ),
+        ),
+      ),
+    )
+  }
+
  it.effect("classifies terminal outcomes the recordings never saw", () =>
    Effect.gen(function* () {
      const bfl = yield* Image.resume(BlackForestLabs.configure({ apiKey: "test" }).image("flux-2-pro"), {
@@ -3,7 +3,7 @@ import { NodeFileSystem } from "@effect/platform-node"
 import { Effect, Ref, Schema } from "effect"
 import { FileSystem } from "effect"
 import { HttpClientRequest } from "effect/unstable/http"
-import { Media, Message } from "../src/index.js"
+import { AIError, Media, Message } from "../src/index.js"
 import { it } from "./lib/effect.js"
 import { dynamicResponse, scriptedResponses } from "./lib/http.js"

@@ -161,6 +161,56 @@ describe("Media", () => {
    }),
  )

+  it.effect("keeps transient url download headers out of toJSON and AssetSchema encoding", () =>
+    Effect.sync(() => {
+      const asset = Media.url("https://cdn.example.test/video.mp4", {
+        mediaType: "video/mp4",
+        expiresAt: 42,
+        headers: { "x-goog-api-key": "secret" },
+      })
+      expect(asset.headers).toEqual({ "x-goog-api-key": "secret" })
+      const source = { type: "url", url: "https://cdn.example.test/video.mp4", mediaType: "video/mp4", expiresAt: 42 }
+
+      expect(asset.toJSON()).not.toHaveProperty("headers")
+      expect(JSON.stringify(asset)).not.toContain("secret")
+      expect(asset.toJSON().source).toEqual(source)
+
+      const encoded = Schema.encodeSync(Media.AssetSchema)(asset)
+      expect(encoded).not.toHaveProperty("headers")
+      expect(encoded.source).toEqual(source)
+
+      const codec = Schema.fromJsonString(Media.AssetSchema)
+      const json = Schema.encodeSync(codec)(asset)
+      expect(json).not.toContain("secret")
+      const restored = Schema.decodeSync(codec)(json)
+      expect(restored).toBeInstanceOf(Media.Asset)
+      expect(restored.source).toEqual(source)
+      expect(restored.expiresAt).toBe(42)
+      expect(restored.headers).toBeUndefined()
+    }),
+  )
+
+  it.effect("fails url downloads with non-2xx status as a typed AIError keeping http and body", () =>
+    Effect.gen(function* () {
+      const body = JSON.stringify({ error: { message: "file expired" } })
+      const error = yield* Media.url("https://cdn.example.test/expired.png")
+        .bytes()
+        .pipe(
+          Effect.flip,
+          Effect.provide(
+            dynamicResponse((input) =>
+              Effect.succeed(input.respond(body, { status: 404, headers: { "content-type": "application/json" } })),
+            ),
+          ),
+        )
+      expect(error).toBeInstanceOf(AIError)
+      expect(error.message).toContain("file expired")
+      expect(error.reason.http?.status).toBe(404)
+      expect(error.reason.http?.url).toBe("https://cdn.example.test/expired.png")
+      expect(error.reason.body).toBe(body)
+    }),
+  )
+
  it.effect("reads files with sniffed media types and writes materialized assets", () =>
    Effect.gen(function* () {
      const fs = yield* FileSystem.FileSystem
@@ -33,6 +33,8 @@ describe("Black Forest Labs Images recorded", () => {

        expect(response.image.source.type).toBe("bytes")
        expect(dimensions(yield* response.image.bytes())).toEqual({ width: 512, height: 512 })
+        // BFL reports cost on submit only; the Ready result omits it.
+        expect(response.usage).toEqual({ type: "credits", credits: 1.4000000000000001 })
      }),
    { timeout: 15 * 60 * 1000 },
  )
@@ -29,7 +29,11 @@ describe("OpenAI Images recorded", () => {

      expect(response.images).toHaveLength(1)
      expect(response.image.mediaType).toBe("image/jpeg")
+      expect(response.image.info).toEqual({ format: "jpeg", width: 1024, height: 1024 })
      expect((yield* response.image.bytes()).length).toBeGreaterThan(0)
+      expect(response.providerMetadata).toEqual({
+        openai: { outputFormat: "jpeg", size: "1024x1024", quality: "low", background: "opaque" },
+      })
    }),
  )

@@ -76,8 +80,13 @@ describe("OpenAI Images recorded", () => {
      expect(events.map((event) => event.type)).toEqual(["image-partial", "image", "finish"])
      const image = events.find(ImageEvent.is.image)
      expect(image?.image.mediaType).toBe("image/jpeg")
+      expect(image?.image.info).toEqual({ format: "jpeg", width: 1024, height: 1024 })
      expect(dimensions(yield* image!.image.bytes())).toEqual({ width: 1024, height: 1024 })
-      expect(events.find(ImageEvent.is.finish)?.usage).toMatchObject({ type: "tokens" })
+      const finish = events.find(ImageEvent.is.finish)
+      expect(finish?.usage).toMatchObject({ type: "tokens" })
+      expect(finish?.providerMetadata).toEqual({
+        openai: { outputFormat: "jpeg", size: "1024x1024", quality: "low", background: "opaque" },
+      })
    }),
  )
 })
@@ -44,7 +44,12 @@ describe("OpenAI Transcription recorded", () => {
      expect(deltas.length).toBeGreaterThan(1)
      expect(deltas.join("")).toBe(finish.text)
      expect(finish.text).toMatch(TRANSCRIPT)
-      expect(finish.usage).toMatchObject({ type: "tokens", input: expect.any(Number), output: expect.any(Number) })
+      expect(finish.usage).toMatchObject({
+        type: "tokens",
+        input: expect.any(Number),
+        output: expect.any(Number),
+        details: { openai: { input_token_details: { audio_tokens: expect.any(Number) } } },
+      })
    }),
  )

@@ -32,7 +32,12 @@ describe("Z.ai Images", () => {

      expect(response.images).toHaveLength(1)
      expect(response.image.mediaType).toBe("application/octet-stream")
-      expect(response.image.source).toEqual({ type: "url", url: "https://cdn.z.ai/generated.png" })
+      // Z.ai documents that output URLs expire 30 days after generation; the test clock starts at 0.
+      expect(response.image.source).toEqual({
+        type: "url",
+        url: "https://cdn.z.ai/generated.png",
+        expiresAt: 30 * 24 * 60 * 60 * 1000,
+      })
      expect(response.notices).toEqual([
        {
          type: "moderated",
@@ -28,10 +28,49 @@ const cartesia = Cartesia.configure({ apiKey: "test", baseURL: "https://cartesia
 const google = Google.configure({ apiKey: "test", baseURL: "https://google.test/v1beta" }).speech(
  "gemini-2.5-flash-preview-tts",
 )
+const google38 = Google.configure({ apiKey: "test", baseURL: "https://google.test/v1beta" }).speech(
+  "gemini-3.8-flash-tts",
+)
+const google38Lite = Google.configure({ apiKey: "test", baseURL: "https://google.test/v1beta" }).speech(
+  "gemini-3.8-flash-lite-tts",
+)
 const deepgram = Deepgram.configure({ apiKey: "test", baseURL: "https://deepgram.test" }).speech("aura-2-thalia-en")
 const voice = "JBFqnCBsd6RMkjVDRZzb"

 describe("Speech", () => {
+  it.effect("preserves Google's WAV output instead of describing it as raw PCM", () =>
+    Effect.gen(function* () {
+      const bytes = new TextEncoder().encode("RIFF....WAVEfmt ")
+      const response = yield* Speech.generate({ model: google38, text: "Hi" }).pipe(
+        Effect.provide(
+          respond(
+            JSON.stringify({
+              candidates: [
+                { content: { parts: [{ inlineData: { mimeType: "audio/wav", data: Encoding.encodeBase64(bytes) } }] } },
+              ],
+            }),
+            "application/json",
+          ),
+        ),
+      )
+      expect(response.audio.mediaType).toBe("audio/wav")
+      expect(response.audio.info?.format).toBe("wav")
+      expect(response.audio.info?.encoding).toBeUndefined()
+      expect(yield* response.audio.bytes()).toEqual(bytes)
+    }),
+  )
+
+  it.effect("rejects raw PCM for Gemini 3.8 unary requests before sending", () =>
+    Effect.gen(function* () {
+      const errors = yield* Effect.all(
+        [google38, google38Lite].map((model) =>
+          Speech.generate({ model, text: "Hi", format: "pcm" }).pipe(Effect.flip),
+        ),
+      ).pipe(Effect.provide(layer(() => Effect.die("An unsupported request reached the network"))))
+      expect(errors.map((error) => error.reason._tag)).toEqual(["UnsupportedOperation", "UnsupportedOperation"])
+    }),
+  )
+
  it.effect("rejects what a provider cannot produce before sending anything", () =>
    Effect.gen(function* () {
      const errors = yield* Effect.all(
@@ -58,6 +97,42 @@ describe("Speech", () => {
    }).pipe(Effect.provide(layer(() => Effect.die("an unsupported request reached the network")))),
  )

+  it.effect("treats timestamps: false as not asking for timestamps on routes that cannot return them", () =>
+    Effect.gen(function* () {
+      const bytes = Uint8Array.from([1, 2, 3])
+      const gemini = JSON.stringify({
+        candidates: [
+          { content: { parts: [{ inlineData: { mimeType: "audio/L16;codec=pcm;rate=24000", data: "AQID" } }] } },
+        ],
+      })
+      const responses = yield* Effect.all([
+        Speech.generate({ model: openai, text: "Hi", timestamps: false }).pipe(
+          Effect.provide(respond(new Blob([bytes]).stream(), "audio/mpeg")),
+        ),
+        Speech.generate({ model: google, text: "Hi", timestamps: false }).pipe(
+          Effect.provide(respond(gemini, "application/json")),
+        ),
+        Speech.generate({ model: deepgram, text: "Hi", timestamps: false }).pipe(
+          Effect.provide(respond(new Blob([bytes]).stream(), "audio/mpeg")),
+        ),
+      ])
+      for (const response of responses) expect(yield* response.audio.bytes()).toEqual(bytes)
+
+      const errors = yield* Effect.all(
+        [openai, google, deepgram].map((model) =>
+          Speech.generate({ model, text: "Hi", timestamps: true }).pipe(Effect.flip),
+        ),
+      ).pipe(Effect.provide(layer(() => Effect.die("an unsupported request reached the network"))))
+      expect(errors.map((error) => [error.reason._tag, "operation" in error.reason && error.reason.operation])).toEqual(
+        [
+          ["UnsupportedOperation", "media.timestamps"],
+          ["UnsupportedOperation", "media.timestamps"],
+          ["UnsupportedOperation", "media.timestamps"],
+        ],
+      )
+    }),
+  )
+
  it.effect("classifies stream failures and keeps the provider payload and HTTP context", () =>
    Effect.gen(function* () {
      const badFrame = JSON.stringify({ type: "speech.audio.delta", audio: "not base64!" })
@@ -5,7 +5,7 @@ import { HttpClientRequest } from "effect/unstable/http"
 import { Media, Transcription, TranscriptionClient } from "../src/index.js"
 import { AssemblyAI, Deepgram, Google, OpenAI } from "../src/providers.js"
 import { it } from "./lib/effect.js"
-import { dynamicResponse } from "./lib/http.js"
+import { dynamicResponse, json, observe, type Call } from "./lib/http.js"

 const layer = (handler: Parameters<typeof dynamicResponse>[0]) =>
  TranscriptionClient.layer.pipe(Layer.provideMerge(dynamicResponse(handler)))
@@ -25,7 +25,6 @@ describe("Transcription", () => {
    Effect.gen(function* () {
      const errors = yield* Effect.all(
        [
-          Stream.runCollect(Transcription.stream({ model: openai.transcription("whisper-1"), audio })),
          Transcription.generate({ model: openai.transcription("gpt-4o-mini-transcribe"), audio, diarize: true }),
          Transcription.generate({ model: openai.transcription("gpt-4o-mini-transcribe"), audio, timestamps: "word" }),
          Transcription.generate({ model: openai.transcription("gpt-4o-transcribe-diarize"), audio, prompt: "Names" }),
@@ -53,7 +52,6 @@ describe("Transcription", () => {
      )
      expect(errors.map((error) => [error.reason._tag, "operation" in error.reason && error.reason.operation])).toEqual(
        [
-          ["UnsupportedOperation", "media.stream"],
          ["UnsupportedOperation", "media.diarize"],
          ["UnsupportedOperation", "media.timestamps"],
          ["UnsupportedOperation", "media.prompt"],
@@ -70,6 +68,67 @@ describe("Transcription", () => {
    }).pipe(Effect.provide(layer(() => Effect.die("an unsupported request reached the network")))),
  )

+  it.effect("ignores unknown OpenAI stream events and fails on an error event with the frame", () =>
+    Effect.gen(function* () {
+      const sse = (...frames: ReadonlyArray<string>) => frames.map((frame) => `data: ${frame}\n\n`).join("")
+      const failure = `{"type":"error","error":{"type":"server_error","code":"server_error","message":"The server had an error"}}`
+      const bodies = [
+        sse(
+          `{"type":"transcript.text.delta","delta":"Hi"}`,
+          `{"type":"transcript.text.future","payload":1}`,
+          `{"type":"transcript.text.done","text":"Hi"}`,
+          "[DONE]",
+        ),
+        sse(`{"type":"transcript.text.delta","delta":"Hi"}`, failure),
+      ]
+      const model = openai.transcription("gpt-4o-mini-transcribe")
+      const program = Effect.gen(function* () {
+        const events = Array.from(yield* Stream.runCollect(Transcription.stream({ model, audio })))
+        const error = yield* Stream.runCollect(Transcription.stream({ model, audio })).pipe(Effect.flip)
+        return { events, error }
+      })
+      const { events, error } = yield* program.pipe(
+        Effect.provide(
+          layer((input) =>
+            Effect.sync(() =>
+              input.respond(bodies.shift() ?? "", { headers: { "content-type": "text/event-stream" } }),
+            ),
+          ),
+        ),
+      )
+
+      expect(events.map((event) => event.type)).toEqual(["text-delta", "finish"])
+      expect(error.reason).toMatchObject({ _tag: "ProviderInternal", body: failure })
+      expect(error.message).toContain("The server had an error")
+    }),
+  )
+
+  it.effect("streams whisper-1 as a single finish from a plain request", () =>
+    Effect.gen(function* () {
+      const bodies: Array<string> = []
+      const events = Array.from(
+        yield* Stream.runCollect(Transcription.stream({ model: openai.transcription("whisper-1"), audio })).pipe(
+          Effect.provide(
+            layer((input) =>
+              Effect.sync(() => {
+                bodies.push(input.text)
+                return input.respond(
+                  JSON.stringify({ text: "Hello there.", usage: { type: "duration", seconds: 2 } }),
+                  { headers: { "content-type": "application/json" } },
+                )
+              }),
+            ),
+          ),
+        ),
+      )
+
+      expect(bodies[0]).not.toContain('name="stream"')
+      expect(events).toEqual([
+        expect.objectContaining({ type: "finish", text: "Hello there.", usage: { type: "seconds", seconds: 2 } }),
+      ])
+    }),
+  )
+
  it.effect(
    "uploads inline audio to AssemblyAI, resumes polling from a persisted token, and surfaces failed transcripts",
    () =>
@@ -171,4 +230,45 @@ describe("Transcription", () => {
        expect(failure.reason).toMatchObject({ _tag: "ProviderInternal", body: failed })
      }),
  )
+
+  it.effect("enables AssemblyAI speaker labels when only an expected speaker count is given", () =>
+    Effect.gen(function* () {
+      const calls: Array<Call> = []
+      yield* Transcription.start({ model: assemblyai, audio: Media.url("https://a.test/call.mp3"), speakers: 2 }).pipe(
+        Effect.provide(
+          layer((input) => observe(calls, input).pipe(Effect.as(json(input, { id: "tr_1", status: "queued" })))),
+        ),
+      )
+      expect(calls.map((call) => JSON.parse(call.body))).toEqual([
+        {
+          audio_url: "https://a.test/call.mp3",
+          speech_models: ["universal-3-5-pro"],
+          language_detection: true,
+          speaker_labels: true,
+          speakers_expected: 2,
+        },
+      ])
+    }),
+  )
+
+  it.effect("rejects reading an AssemblyAI result before the transcript finishes", () =>
+    Effect.gen(function* () {
+      const generation = yield* Transcription.resume(assemblyai, { transcriptID: "tr_1" })
+      const error = yield* generation.result().pipe(Effect.flip)
+      expect(error.reason._tag).toBe("InvalidRequest")
+      expect(error.message).toBe("AssemblyAI generation tr_1 has not finished; await it before reading the result")
+      expect(error.reason.body).toBe(JSON.stringify({ id: "tr_1", status: "processing" }))
+      expect(error.reason.http?.status).toBe(200)
+    }).pipe(
+      Effect.provide(
+        layer((input) =>
+          Effect.succeed(
+            input.respond(JSON.stringify({ id: "tr_1", status: "processing" }), {
+              headers: { "content-type": "application/json" },
+            }),
+          ),
+        ),
+      ),
+    ),
+  )
 })
@@ -576,7 +576,7 @@ describe("Video / Runway", () => {
  const model = runway.video("gen4.5")
  const taskUrl = "https://runway.test/v1/tasks/task_1"

-  it.effect("submits image_to_video with the API version header, polls the task, and reports credits", () =>
+  it.effect("submits image_to_video, polls the task, reports credits, and keeps the finished task on cancel", () =>
    Effect.gen(function* () {
      const calls: Array<Call> = []
      const program = Effect.gen(function* () {
@@ -624,7 +624,7 @@ describe("Video / Runway", () => {
                return json(input, { id: "task_1", estimatedCost: { credits: 25 } })
              }
              expect(call.url).toBe(taskUrl)
-              if (call.method === "DELETE") return input.respond(null, { status: 204 })
+              if (call.method === "DELETE") return yield* Effect.die("cancel deleted a finished Runway task")
              if (nth === 1) return json(input, { id: "task_1", status: "PENDING", estimatedCost: { credits: 25 } })
              if (nth === 2) return json(input, { id: "task_1", status: "THROTTLED", estimatedCost: { credits: 25 } })
              if (nth === 3) return json(input, { id: "task_1", status: "RUNNING", progress: 0.5 })
@@ -653,6 +653,32 @@ describe("Video / Runway", () => {
        `GET ${taskUrl}`,
        `GET ${taskUrl}`,
        `GET ${taskUrl}`,
+        `GET ${taskUrl}`,
+      ])
+    }),
+  )
+
+  it.effect("cancels a task that is still running", () =>
+    Effect.gen(function* () {
+      const calls: Array<Call> = []
+      yield* Effect.gen(function* () {
+        const generation = yield* Video.start({ model, prompt: "x" })
+        yield* generation.cancel()
+      }).pipe(
+        Effect.provide(
+          layer((input) =>
+            Effect.gen(function* () {
+              const { call } = yield* observe(calls, input)
+              if (call.method === "POST") return json(input, { id: "task_1" })
+              if (call.method === "DELETE") return input.respond(null, { status: 204 })
+              return json(input, { id: "task_1", status: "RUNNING", progress: 0.2 })
+            }),
+          ),
+        ),
+      )
+      expect(calls.map((call) => `${call.method} ${call.url}`)).toEqual([
+        "POST https://runway.test/v1/text_to_video",
+        `GET ${taskUrl}`,
        `DELETE ${taskUrl}`,
      ])
    }),
@@ -812,3 +838,55 @@ describe("Video / Runway", () => {
    }),
  )
 })
+
+// ---------------------------------------------------------------------------
+// Shared queued behavior
+// ---------------------------------------------------------------------------
+
+describe("Video / queued result", () => {
+  for (const pending of [
+    {
+      model: Google.configure({ apiKey: "test", baseURL: "https://google.test/v1beta" }).video("veo-3.1"),
+      token: { operation: "models/veo-3.1/operations/op_1" },
+      body: { name: "models/veo-3.1/operations/op_1", done: false },
+      name: "Google Veo",
+    },
+    {
+      model: XAI.configure({ apiKey: "test", baseURL: "https://xai.test/v1" }).video("grok-imagine-video-1.5"),
+      token: { requestID: "req_1" },
+      body: { status: "pending", progress: 40 },
+      name: "xAI Video",
+    },
+    {
+      model: Runway.configure({ apiKey: "test", baseURL: "https://runway.test/v1" }).video("gen4.5"),
+      token: { taskID: "task_1" },
+      body: { status: "RUNNING", progress: 0.5 },
+      name: "Runway",
+    },
+  ]) {
+    it.effect(`rejects reading a ${pending.model.provider} result before the generation finishes`, () =>
+      Effect.gen(function* () {
+        const generation = yield* Video.resume(pending.model, pending.token)
+        const error = yield* generation.result().pipe(Effect.flip)
+        expect(error.reason._tag).toBe("InvalidRequest")
+        expect(error.message).toBe(
+          `${pending.name} generation ${generation.id} has not finished; await it before reading the result`,
+        )
+        expect(error.reason.body).toBe(JSON.stringify(pending.body))
+        expect(error.reason.http?.status).toBe(200)
+      }).pipe(Effect.provide(layer((input) => Effect.succeed(json(input, pending.body))))),
+    )
+  }
+
+  it.effect("rejects a status that only matches an inherited property", () =>
+    Effect.gen(function* () {
+      const error = yield* Video.resume(
+        XAI.configure({ apiKey: "test", baseURL: "https://xai.test/v1" }).video("grok-imagine-video-1.5"),
+        { requestID: "req_1" },
+      ).pipe(Effect.flip)
+      expect(error.reason._tag).toBe("InvalidProviderOutput")
+      expect(error.message).toBe('Unknown generation status "constructor"')
+      expect(error.reason.body).toBe(JSON.stringify({ status: "constructor" }))
+    }).pipe(Effect.provide(layer((input) => Effect.succeed(json(input, { status: "constructor" }))))),
+  )
+})
@@ -2,7 +2,7 @@ import { DialogProvider } from "@opencode/ui/context/dialog"
 import { Browser } from "@opencode/plugin-browser/rpc"
 import { For, Show } from "solid-js"
 import { createStore } from "solid-js/store"
-import { render } from "solid-js/web"
+import { Portal, render } from "solid-js/web"
 import { LanguageProvider, UiI18nBridge } from "../src/runtime/i18n/language"
 import type { BrowserPaneLayout, BrowserPaneRegistration } from "../src/runtime/platform/browser-pane"
 import type { createSessionBrowser } from "../src/session/browser/model"
@@ -27,7 +27,12 @@ export function mountBrowserPane() {
      loadErrors: {} as Record<string, string | undefined>,
      error: undefined as string | undefined,
      layouts: {} as Record<string, BrowserPaneLayout | undefined>,
+      covered: false,
+      captures: 0,
+      holdCapture: false,
    })
+    // Each capture waits until the fixture releases it, so a spec can observe the pending state.
+    const held: (() => void)[] = []
    const tabs = ["Alpha", "Beta"].map((name) => ({
      id: Browser.TabID.make(`tab_${name === "Alpha" ? "11111111" : "22222222"}-1111-1111-1111-111111111111`),
      title: name,
@@ -44,6 +49,17 @@ export function mountBrowserPane() {
        {
          setLayout: (layout) => setStore("layouts", tab.title, layout),
          command: async () => undefined,
+          capture: async () => {
+            setStore("captures", (count) => count + 1)
+            if (store.holdCapture) await new Promise<void>((resolve) => held.push(resolve))
+            const canvas = new OffscreenCanvas(4, 4)
+            const paint = canvas.getContext("2d")
+            if (paint) {
+              paint.fillStyle = "#3b82f6"
+              paint.fillRect(0, 0, 4, 4)
+            }
+            return canvas.convertToBlob()
+          },
          close: () => undefined,
        },
      ]),
@@ -118,12 +134,34 @@ export function mountBrowserPane() {
            Complete navigation
          </button>
          <button onClick={() => setStore("visible", (visible) => !visible)}>Toggle Review tab</button>
+          <button onClick={() => setStore("holdCapture", true)}>Hold capture</button>
+          <button onClick={() => held.splice(0).forEach((resolve) => resolve())}>Release capture</button>
+          <button onClick={() => setStore("covered", (covered) => !covered)}>Toggle popover</button>
        </nav>
-        <div style={{ width: "640px", height: "360px", border: "1px solid #555" }}>
+        <p>Captures: {store.captures}</p>
+        <div style={{ position: "relative", width: "640px", height: "360px", border: "1px solid #555" }}>
          <Show when={store.mounted}>
            <SessionBrowserPane browser={browser} visible={store.visible} />
          </Show>
        </div>
+        <Show when={store.covered}>
+          {/* Floating content portals into <body> like a menu or hover card over the page. */}
+          <Portal mount={document.body}>
+            <div
+              data-popper-positioner
+              data-testid="fixture-popover"
+              style={{
+                position: "fixed",
+                top: "0",
+                left: "0",
+                width: "320px",
+                height: "480px",
+                "z-index": "1001",
+                "pointer-events": "none",
+              }}
+            />
+          </Portal>
+        </Show>
        <h2 style={{ "font-size": "18px", margin: "20px 0 12px" }}>Native layout recorder</h2>
        <p>The desktop boundary keeps each session's page visible until its registration is hidden.</p>
        <For each={tabs}>
@@ -58,6 +58,27 @@ story("hides the native view immediately while the pane stays mounted", async ({
  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
 })

+story("keeps a still of the page under floating content that covers it", async ({ page }, testInfo) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  const still = root.locator("#browser-panel img")
+  await root.getByRole("button", { name: "Hold capture", exact: true }).click()
+  await root.getByRole("button", { name: "Toggle popover", exact: true }).click()
+  await expect(root.getByText("Captures: 1", { exact: true })).toBeVisible()
+  // The native page stays up until its still is ready, so the pane never shows blank.
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(still).toHaveCount(0)
+
+  await root.getByRole("button", { name: "Release capture", exact: true }).click()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+  await expect(still).toBeVisible()
+  await page.screenshot({ path: testInfo.outputPath("covered.png") })
+
+  await root.getByRole("button", { name: "Toggle popover", exact: true }).click()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+  await expect(still).toHaveCount(0)
+  await expect(root.getByText("Captures: 1", { exact: true })).toBeVisible()
+})
+
 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()
@@ -1,5 +1,5 @@
 import { expect, test, type Page } from "@playwright/test"
-import type { OpenCodeEvent, SessionMessageInfo } from "@opencode/client/promise"
+import type { OpenCodeEvent, SessionInboxInfo, SessionMessageInfo } from "@opencode/client/promise"
 import { base64Encode } from "@opencode/util/encode"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible } from "../utils/waits"
@@ -14,7 +14,12 @@ type InboxRow = {
  sessionID: string
  time: { created: number }
  type: "user"
-  payload: { text: string; metadata?: Record<string, unknown> }
+  payload: {
+    text: string
+    metadata?: Record<string, unknown>
+    files?: Extract<SessionInboxInfo, { type: "user" }>["payload"]["files"]
+    agents?: Extract<SessionInboxInfo, { type: "user" }>["payload"]["agents"]
+  }
  delivery: "steer" | "queue"
 }

@@ -29,7 +34,7 @@ function createQueueMock(seed: string[], messages: SessionMessageInfo[] = []) {
  }))
  const events: OpenCodeEvent[] = []
  const prompts: Record<string, unknown>[] = []
-  const changes: { inboxID: string; action: "cancel" | "steer" }[] = []
+  const changes: { inboxID: string; action: "cancel" | "steer" | "queue" }[] = []
  const log: string[] = []
  let sequence = 0
  const emit = <Type extends OpenCodeEvent["type"]>(
@@ -234,6 +239,108 @@ test("editing restores the existing draft and replaces only the original queue p
  expect(mock.log[0]).toBe("prompt:queue")
 })

+test("Undo cancels only the selected queued prompt and focuses the restored input", async ({ page }) => {
+  const mock = createQueueMock(["first queued prompt", "second queued prompt", "third queued prompt"])
+  const view = await openSession(page, mock)
+  await expect(view.rows).toHaveCount(3)
+
+  const row = view.rows.filter({ hasText: "second queued prompt" })
+  const actions = row.locator('[data-slot="session-queue-actions"] button')
+  await expect(actions).toHaveCount(3)
+  expect(
+    await actions.evaluateAll((buttons) =>
+      buttons.map((button) => button.getAttribute("aria-label") ?? button.textContent?.trim()),
+    ),
+  ).toEqual(["Steer", "Undo", "Remove"])
+  const undo = row.getByRole("button", { name: "Undo" })
+  await expect(undo).toHaveText("")
+  await expect(undo.locator("svg use")).toHaveAttribute("href", "#opencode-v2-icon-arrow-down-to-line")
+  await undo.hover()
+  await expect(page.getByRole("tooltip")).toHaveText("Undo")
+  await undo.click()
+  await expect(view.rows.locator('[data-action="session-queue-edit"]')).toHaveText([
+    "first queued prompt",
+    "third queued prompt",
+  ])
+  await expect(view.input).toHaveText("second queued prompt")
+  await expect(view.input).toBeFocused()
+  expect(mock.changes).toEqual([{ inboxID: "inb_seed_2", action: "cancel" }])
+  expect(mock.prompts).toEqual([])
+})
+
+test("Undo appends to an existing draft and restores inline attachments", async ({ page }) => {
+  const mock = createQueueMock(["queued with image"])
+  mock.rows[0].payload.files = [
+    {
+      data: "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIHWP4z8DwHwAFgAI/ScL/nwAAAABJRU5ErkJggg==",
+      mime: "image/png",
+      source: { type: "inline" },
+      name: "shot.png",
+    },
+  ]
+  const view = await openSession(page, mock)
+  await view.input.fill("my draft")
+  await view.rows.getByRole("button", { name: "Undo" }).click()
+  await expect(view.rows).toHaveCount(0)
+  await expect(view.input).toHaveText("my draft\n\nqueued with image")
+  await expect(view.input).toBeFocused()
+  await expect(view.composer.getByRole("img", { name: "shot.png" })).toBeVisible()
+  expect(mock.changes).toEqual([{ inboxID: "inb_seed_1", action: "cancel" }])
+})
+
+test("Undo stays usable with a long queue on a narrow screen", async ({ page }, testInfo) => {
+  await page.setViewportSize({ width: 390, height: 844 })
+  const text = "Review the detailed error report and check every step of the retry path ".repeat(4)
+  const mock = createQueueMock([text, ...Array.from({ length: 6 }, (_, index) => `queued follow-up ${index + 1}`)])
+  const view = await openSession(page, mock)
+  await expect(view.rows).toHaveCount(7)
+  const row = view.rows.filter({ hasText: text })
+  await row.getByRole("button", { name: "Undo" }).hover()
+  await expect(page.getByRole("tooltip")).toHaveText("Undo")
+  await page.screenshot({ path: testInfo.outputPath("undo-narrow-queue.png") })
+  await row.getByRole("button", { name: "Undo" }).click()
+  await expect(view.rows).toHaveCount(6)
+  await expect(view.input).toHaveText(text)
+  await expect(view.input).toBeFocused()
+  expect(mock.changes).toEqual([{ inboxID: "inb_seed_1", action: "cancel" }])
+})
+
+test("Undo preserves mentioned file and agent references on resubmission", async ({ page }) => {
+  const mock = createQueueMock(["inspect @main.ts with @build"])
+  mock.rows[0].payload.files = [
+    {
+      data: "aGk=",
+      mime: "text/plain",
+      source: { type: "uri", uri: "file:///repo/main.ts" },
+      name: "main.ts",
+      mention: { start: 8, end: 16, text: "@main.ts" },
+    },
+  ]
+  mock.rows[0].payload.agents = [{ name: "build", mention: { start: 22, end: 28, text: "@build" } }]
+  const view = await openSession(page, mock)
+  await view.rows.getByRole("button", { name: "Undo" }).click()
+  await expect(view.input).toHaveText("inspect @main.ts with @build")
+  await view.input.press("Enter")
+  await expect.poll(() => mock.prompts.length).toBe(1)
+  expect(mock.prompts[0].files).toMatchObject([
+    { uri: "data:text/plain;base64,aGk=", mention: { text: "@main.ts", start: 8, end: 16 } },
+  ])
+  expect(mock.prompts[0].agents).toMatchObject([{ name: "build", mention: { text: "@build" } }])
+})
+
+test("Undo does not discard hidden file context", async ({ page }) => {
+  const mock = createQueueMock(["inspect this file"])
+  mock.rows[0].payload.files = [
+    { data: "aGk=", mime: "text/plain", source: { type: "uri", uri: "file:///repo/main.ts" }, name: "main.ts" },
+  ]
+  const view = await openSession(page, mock)
+  await view.rows.getByRole("button", { name: "Undo" }).click()
+  await expect(page.getByText("Edit this prompt in the queue to preserve its file context")).toBeVisible()
+  await expect(view.rows).toHaveCount(1)
+  await expect(view.input).toHaveText("")
+  expect(mock.changes).toEqual([])
+})
+
 for (const delivery of ["steer", "queue"] as const) {
  test(`keeps finished tools above a pending ${delivery === "queue" ? "queue-to-steer" : "steer"} follow-up`, async ({
    page,
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/app",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "description": "",
  "type": "module",
  "exports": {
@@ -47,6 +47,7 @@ export type ComposerDelivery = "steer" | "queue"
 // is loaded in the editor.
 export type ComposerQueue = {
  count: Accessor<number>
+  undoing: Accessor<boolean>
  // Delivery a plain submit uses right now.
  delivery: Accessor<ComposerDelivery>
  // Delivery offered on Mod+Enter and the toolbar hint button; undefined hides the hint.
@@ -168,6 +168,7 @@ function ComposerStory(props: {
              alternate: () => props.alternate,
              editing: () => undefined,
              confirmEdit() {},
+              undoing: () => false,
              cancelEdit() {},
              editFirst: () => false,
            }
@@ -16,6 +16,7 @@ export function Composer(props: {
  class?: string
  model: ComposerModel
  borderUnderlay?: boolean
+  readOnly?: boolean
  suggestionBoundary?: () => HTMLElement | undefined
 }) {
  const dialog = useDialog()
@@ -27,6 +28,7 @@ export function Composer(props: {
      <ComposerEditor
        controller={props.model}
        borderUnderlay={props.borderUnderlay}
+        readOnly={props.readOnly}
        class={props.class}
        modelControlsVisible={!props.model.model.loading}
        attachKeybind={command.keybindParts("file.attach")}
@@ -371,6 +371,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
        onSubmit: (submitOptions) => {
          if (!available()) return
          const queue = options?.queue
+          if (queue?.undoing()) return
          // Confirming an edit re-admits the queued prompt instead of sending
          // the composer value as a new prompt. Enter keeps it queued in
          // place; the alternate action sends it as a steer.
@@ -86,6 +86,7 @@ export function createHomeSessionsController(home: HomeController) {
      sessions: indexedSessions,
      projectDirectories,
      projects: home.project.list,
+      resolveProject: (session) => home.server.focusedContext()?.projects.forSession(session),
    }),
  )
  const records = createMemo(() => allRecords().slice(0, HOME_SESSION_LIMIT))
@@ -291,6 +292,7 @@ export function createHomeSessionsController(home: HomeController) {
          sessions: () => [result],
          projectDirectories,
          projects: home.project.list,
+          resolveProject: ctx.projects.forSession,
        })[0]
      },
      create: home.project.openNewSession,
@@ -18,6 +18,7 @@ export function buildHomeSessionRecords(input: {
  sessions: () => SessionInfo[]
  projectDirectories: () => string[] | undefined
  projects: () => LocalProject[]
+  resolveProject?: (session: SessionInfo) => LocalProject | undefined
 }) {
  const selected = input.projectDirectories()
  const directories = selected ? new Set(selected.map(pathKey)) : undefined
@@ -27,11 +28,12 @@ export function buildHomeSessionRecords(input: {
  return [...new Map(sessions.map((session) => [session.id, session] as const)).values()]
    .sort(compareSessionTime)
    .map((session) => {
-      const project = homeProjectForSession(session, input.projects()) ?? {
-        id: session.projectID,
-        worktree: session.location.directory,
-        expanded: false,
-      }
+      const project = input.resolveProject?.(session) ??
+        homeProjectForSession(session, input.projects()) ?? {
+          id: session.projectID,
+          worktree: session.location.directory,
+          expanded: false,
+        }
      return { session, project, projectName: displayName(project) }
    })
 }
@@ -874,6 +874,9 @@ export const dict = {
  "session.queue.send": "Send",
  "session.queue.steerTooltip": "Send without interrupting",
  "session.queue.remove": "Remove",
+  "session.queue.undo": "Undo",
+  "session.queue.undoShell": "Leave shell mode before undoing a queued prompt",
+  "session.queue.undoUnavailable": "Edit this prompt in the queue to preserve its file context",
  "session.queue.reorder": "Reorder queued prompt",
  "session.queue.attachments.one": "{{count}} attachment",
  "session.queue.attachments.other": "{{count}} attachments",
@@ -1439,6 +1442,15 @@ export const dict = {
  "settings.providers.section.connected": "Connected providers",
  "settings.providers.connected.empty": "No connected providers",
  "settings.providers.connected.environmentDescription": "Connected from your environment variables",
+  "settings.providers.account.manage": "Manage {{provider}} accounts",
+  "settings.providers.account.group": "Accounts",
+  "settings.providers.account.add": "Add account",
+  "settings.providers.account.remove": "Remove account…",
+  "settings.providers.account.active": "Active",
+  "settings.providers.account.switched.title": "{{provider}} account switched",
+  "settings.providers.account.switched.description": "Now using {{account}}.",
+  "settings.providers.account.removed.title": "{{account}} removed",
+  "settings.providers.account.removed.description": "{{provider}} will no longer use this account.",
  "settings.providers.console.available.one": "{{count}} provider available",
  "settings.providers.console.available.other": "{{count}} providers available",
  "settings.providers.section.popular": "Popular providers",
@@ -25,6 +25,8 @@ export type BrowserPaneEvent =
 export type BrowserPaneRegistration = {
  setLayout(layout?: BrowserPaneLayout): void
  command(command: BrowserPaneCommand): Promise<void>
+  /** Captures the shown page, or resolves null when nothing is on screen. */
+  capture(tabID: Browser.TabID): Promise<Blob | null>
  close(): void
 }

@@ -18,6 +18,8 @@ import { showToast } from "@/shell/notifications/toast"
 import { formatServerError } from "./errors"
 import { useSettings } from "@/settings/model"
 import { timelinePreset } from "@opencode/session-ui/timeline/detail"
+import type { SessionInfo } from "@opencode/client/promise"
+import { resolveProjectForSession, resolveSessionDetailsProject } from "@/shell/layout/helpers"

 export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext({
  name: "Global",
@@ -180,6 +182,13 @@ function createServerController(
  }

  const projectsList = createMemo(() => projects.list().map(enrich))
+  const forSession = (session: SessionInfo) => {
+    const project = resolveProjectForSession(session, projectsList(), sync.data.project)
+    if (!project) return
+    return "expanded" in project ? project : { ...project, expanded: false }
+  }
+  const detailsForSession = (session: SessionInfo) =>
+    resolveSessionDetailsProject(session, projectsList(), sync.data.project)
  const recentlyClosedList = createMemo(() => {
    const known = new Set(sync.data.project.map((project) => pathKey(project.worktree)))
    return projects
@@ -200,6 +209,8 @@ function createServerController(
    projects: {
      ...projects,
      list: projectsList,
+      forSession,
+      detailsForSession,
      resolve: enrich,
      recentlyClosed: recentlyClosedList,
    },
@@ -43,6 +43,9 @@ function fixture() {
          async command(command) {
            call.commands.push(command)
          },
+          async capture() {
+            return null
+          },
          close() {
            call.closed = true
          },
@@ -11,6 +11,7 @@ import { createStore } from "solid-js/store"
 import { useLanguage } from "@/runtime/i18n/language"
 import { usePlatform } from "@/runtime/platform/platform"
 import { useCommand } from "@/shell/commands/command"
+import type { Browser } from "@opencode/plugin-browser/rpc"
 import type { createSessionBrowser } from "./model"

 export function SessionBrowserPane(props: { browser: ReturnType<typeof createSessionBrowser>; visible: boolean }) {
@@ -30,6 +31,8 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
    // A submitted navigation the browser has not reported yet; keeps the empty state hidden meanwhile.
    navigating: false,
    visible: typeof document === "undefined" || document.visibilityState === "visible",
+    // A still of the page shown in the DOM while floating content covers the hidden native view.
+    snapshot: undefined as { tabID: Browser.TabID; url: string } | undefined,
  })
  const empty = () => !address() && !state()?.loading && !store.navigating
  let surface: HTMLDivElement | undefined
@@ -37,6 +40,8 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
  let frame: number | undefined
  let layout: string | undefined
  let until = 0
+  let capturing: Browser.TabID | undefined
+  let release: ReturnType<typeof setTimeout> | undefined
  const canvas = document.createElement("canvas")
  canvas.width = canvas.height = 1
  const paint = canvas.getContext("2d", { willReadFrequently: true })
@@ -69,6 +74,45 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
      const r = el.getBoundingClientRect()
      return r.width > 0 && r.left < rect.right && r.right > rect.left && r.top < rect.bottom && r.bottom > rect.top
    })
+  const replaceSnapshot = (next?: { tabID: Browser.TabID; url: string }) => {
+    if (store.snapshot?.url) URL.revokeObjectURL(store.snapshot.url)
+    setStore("snapshot", next)
+  }
+  // Keep the page on screen as a still under the floating content. The native view
+  // stays visible until the still has decoded, so the pane never flashes blank.
+  const freeze = (tabID: Browser.TabID) => {
+    clearTimeout(release)
+    release = undefined
+    if (store.snapshot?.tabID === tabID || capturing === tabID) return
+    capturing = tabID
+    void (registration()?.capture(tabID) ?? Promise.resolve(null))
+      .catch(() => null)
+      .then(async (blob) => {
+        const url = blob ? URL.createObjectURL(blob) : ""
+        if (url) {
+          const image = new Image()
+          image.src = url
+          await image.decode().catch(() => undefined)
+        }
+        if (capturing !== tabID) {
+          if (url) URL.revokeObjectURL(url)
+          return
+        }
+        capturing = undefined
+        // A failed capture still hides the page; the pane shows its background as before.
+        replaceSnapshot({ tabID, url })
+        schedule()
+      })
+  }
+  const thaw = () => {
+    capturing = undefined
+    if (!store.snapshot || release !== undefined) return
+    // Keep the still under the native view until the view has painted again.
+    release = setTimeout(() => {
+      release = undefined
+      replaceSnapshot()
+    }, 150)
+  }
  const measure = () => {
    if (!surface) return
    const tab = state()
@@ -84,7 +128,11 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
    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 shown = props.visible && store.visible && !empty() && !failed() && !dialog.active
+    const cover = covered(rect)
+    if (shown && cover) freeze(tab.id)
+    if (!cover) thaw()
+    const visible = shown && !(cover && store.snapshot?.tabID === tab.id)
    // The cutout exposes the app backdrop outside the rounded Review card,
    // not the browser surface inside it.
    const color = getComputedStyle(
@@ -186,6 +234,9 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
  createEventListener(document, "visibilitychange", () => setStore("visible", document.visibilityState === "visible"))
  onCleanup(() => {
    if (frame !== undefined) cancelAnimationFrame(frame)
+    clearTimeout(release)
+    capturing = undefined
+    replaceSnapshot()
  })

  return (
@@ -296,7 +347,17 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
          {error()}
        </div>
      </Show>
-      <div ref={surface} class="min-h-0 flex-1 bg-v2-background-bg-base flex items-center justify-center">
+      <div ref={surface} class="relative min-h-0 flex-1 bg-v2-background-bg-base flex items-center justify-center">
+        <Show when={store.snapshot?.tabID === state()?.id && !empty() && !failed() && store.snapshot?.url}>
+          {(url) => (
+            <img
+              src={url()}
+              alt=""
+              draggable={false}
+              class="absolute inset-0 size-full pointer-events-none select-none"
+            />
+          )}
+        </Show>
        <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
@@ -175,6 +175,18 @@ function SessionQueueRow(props: { queue: SessionQueueView; id: string; index: nu
                  {props.queue.working() ? language.t("session.queue.steer") : language.t("session.queue.send")}
                </Button>
              </Tooltip>
+              <Tooltip placement="top" value={language.t("session.queue.undo")}>
+                <IconButton
+                  data-action="session-queue-undo"
+                  type="button"
+                  size="small"
+                  variant="ghost-muted"
+                  icon={<Icon name="arrow-down-to-line" />}
+                  disabled={props.queue.busy()}
+                  aria-label={language.t("session.queue.undo")}
+                  onClick={() => props.queue.undo(props.id)}
+                />
+              </Tooltip>
            </Show>
            <Tooltip placement="top" value={language.t("session.queue.remove")}>
              <IconButton
@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { SessionInboxInfo } from "@opencode/client/promise"
-import { queuedPromptAttachments, queuedPromptRows } from "./queue"
+import { queuedPromptAttachments, queuedPromptUndoDraft, queuedPromptRows } from "./queue"

 const queued = [
  {
@@ -104,3 +104,43 @@ describe("queuedPromptAttachments", () => {
    expect(queuedPromptAttachments(item)).toEqual([])
  })
 })
+
+describe("queuedPromptUndoDraft", () => {
+  test("keeps full text, structured mentions, and inline images", () => {
+    const item = {
+      ...queued[0],
+      payload: {
+        text: "inspect @main.ts with @build",
+        files: [
+          {
+            data: "aGk=",
+            mime: "text/plain",
+            source: { type: "uri" as const, uri: "file:///repo/main.ts" },
+            name: "main.ts",
+            mention: { start: 8, end: 16, text: "@main.ts" },
+          },
+          { data: "aGk=", mime: "image/png", source: { type: "inline" as const }, name: "shot.png" },
+        ],
+        agents: [{ name: "build", mention: { start: 22, end: 28, text: "@build" } }],
+      },
+    } satisfies SessionInboxInfo
+    expect(queuedPromptUndoDraft(item)).toMatchObject([
+      { type: "text", content: "inspect " },
+      { type: "file", content: "@main.ts", url: "data:text/plain;base64,aGk=" },
+      { type: "text", content: " with " },
+      { type: "agent", content: "@build", name: "build" },
+      { type: "image", filename: "shot.png" },
+    ])
+  })
+
+  test("does not drop hidden file context", () => {
+    const item = {
+      ...queued[0],
+      payload: {
+        text: "inspect this",
+        files: [{ data: "aGk=", mime: "text/plain", source: { type: "uri" as const, uri: "file:///repo/main.ts" } }],
+      },
+    } satisfies SessionInboxInfo
+    expect(queuedPromptUndoDraft(item)).toBeUndefined()
+  })
+})
@@ -3,10 +3,11 @@ import { createStore } from "solid-js/store"
 import { useMutation } from "@tanstack/solid-query"
 import type { SessionInboxInfo } from "@opencode/client/promise"
 import { SessionMessage } from "@opencode/schema/session-message"
+import { Skill } from "@opencode/schema/skill"
 import type { ComposerDelivery } from "@/composer/adapter"
 import type { ComposerStateTarget } from "@/composer/submission-state"
 import type { ImageAttachmentPart, PathAttachmentPart, Prompt } from "@/composer/state"
-import { clonePrompt, isAttachment, promptLength } from "@/composer/prompt-parts"
+import { appendPrompt, clonePrompt, isAttachment, promptLength } from "@/composer/prompt-parts"
 import { buildPromptRequest } from "@/composer/request"
 import { blobDataUrl, createLegacyBlobReference } from "@/runtime/persistence/drafts"
 import { readPromptPresentation } from "@/composer/comment-note"
@@ -42,6 +43,7 @@ export function createSessionQueue(input: {
    mutationFn: async (
      change:
        | { type: "reorder"; inboxIDs: string[] }
+        | { type: "undo"; item: QueuedPrompt; prompt: Prompt }
        | {
            type: "edit"
            inboxIDs: string[]
@@ -54,6 +56,16 @@ export function createSessionQueue(input: {
          },
    ) => {
      if (change.type === "reorder") return rewrite(change.inboxIDs)
+      if (change.type === "undo") {
+        await server.api.session.inbox.cancel({ sessionID: input.sessionID, inboxID: change.item.id })
+        const draft = input.draft.current()
+        const prompt = promptLength(draft)
+          ? appendPrompt(draft, change.prompt)
+          : [...change.prompt, ...draft.filter(isAttachment)]
+        input.draft.set(prompt, promptLength(prompt))
+        input.restoreFocus(promptLength(prompt))
+        return
+      }
      const replacement = await editedPromptInput(
        input.sessionID,
        location().directory,
@@ -139,6 +151,21 @@ export function createSessionQueue(input: {
    if (state.editing?.id === id) cancelEdit()
    return server.api.session.inbox.cancel({ sessionID: input.sessionID, inboxID: id }).catch(() => notify())
  }
+  const undo = (id: string) => {
+    if (mutation.isPending || state.editing) return
+    const item = queued().find((entry) => entry.id === id)
+    if (!item) return
+    if (input.draft.mode.current() !== "normal") {
+      showToast({ title: language.t("session.queue.undoShell") })
+      return
+    }
+    const prompt = queuedPromptUndoDraft(item)
+    if (!prompt) {
+      showToast({ title: language.t("session.queue.undoUnavailable") })
+      return
+    }
+    mutation.mutate({ type: "undo", item, prompt })
+  }
  const reorder = (inboxIDs: string[]) => {
    if (mutation.isPending) return Promise.resolve()
    return mutation.mutateAsync({ type: "reorder", inboxIDs }).catch(() => undefined)
@@ -226,9 +253,11 @@ export function createSessionQueue(input: {
    editFirst,
    rows,
    busy: () => mutation.isPending,
+    undoing: () => mutation.isPending && mutation.variables?.type === "undo",
    working: input.working,
    steer,
    remove,
+    undo,
    edit,
    reorder,
  }
@@ -239,7 +268,7 @@ export type SessionQueue = ReturnType<typeof createSessionQueue>
 // The slice of the queue the panel renders and drives.
 export type SessionQueueView = Pick<
  SessionQueue,
-  "rows" | "editing" | "working" | "busy" | "steer" | "remove" | "edit" | "reorder"
+  "rows" | "editing" | "working" | "busy" | "steer" | "remove" | "undo" | "edit" | "reorder"
 >

 export function queuedPromptRows(items: QueuedPrompt[], replacement?: { original: string; replacement: string }) {
@@ -249,7 +278,8 @@ export function queuedPromptRows(items: QueuedPrompt[], replacement?: { original
    .map((item) => ({
      id: item.id,
      text: queuedPromptText(item),
-      attachments: (item.payload.files?.length ?? 0) + (readPromptPresentation(item.payload.metadata)?.attachments.length ?? 0),
+      attachments:
+        (item.payload.files?.length ?? 0) + (readPromptPresentation(item.payload.metadata)?.attachments.length ?? 0),
    }))
 }

@@ -287,6 +317,88 @@ export function queuedPromptAttachments(item: QueuedPrompt): (ImageAttachmentPar
  ]
 }

+// Use the full model-visible text so comment notes and path references remain
+// in the draft. Convert mentioned files, agents, and skills back into editor
+// parts; a detached draft cannot represent non-mentioned file context.
+export function queuedPromptUndoDraft(item: QueuedPrompt): Prompt | undefined {
+  if (
+    item.payload.files?.some((file) => !isComposerAttachment(file) && !file.mention) ||
+    item.payload.agents?.some((agent) => !agent.mention) ||
+    item.payload.skills?.some((skill) => !skill.mention)
+  )
+    return
+  const text = item.payload.text
+  const references = [
+    ...(item.payload.files ?? []).flatMap((file) =>
+      file.mention
+        ? [
+            {
+              type: "file" as const,
+              content: file.mention.text,
+              start: file.mention.start,
+              end: file.mention.end,
+              path: file.name ?? file.mention.text.replace(/^@/, ""),
+              filename: file.name,
+              mime: file.mime,
+              url: `data:${file.mime};base64,${file.data}`,
+            },
+          ]
+        : [],
+    ),
+    ...(item.payload.agents ?? []).flatMap((agent) =>
+      agent.mention
+        ? [
+            {
+              type: "agent" as const,
+              content: agent.mention.text,
+              start: agent.mention.start,
+              end: agent.mention.end,
+              name: agent.name,
+            },
+          ]
+        : [],
+    ),
+    ...(item.payload.skills ?? []).flatMap((skill) =>
+      skill.mention
+        ? [
+            {
+              type: "skill" as const,
+              content: skill.mention.text,
+              start: skill.mention.start,
+              end: skill.mention.end,
+              id: Skill.ID.make(skill.id),
+              name: Skill.Name.make(skill.name),
+            },
+          ]
+        : [],
+    ),
+  ].sort((left, right) => left.start - right.start)
+  if (
+    references.some(
+      (part, index) =>
+        part.start < (references[index - 1]?.end ?? 0) || text.slice(part.start, part.end) !== part.content,
+    )
+  )
+    return
+  const parts: Prompt = references.flatMap((part, index) => {
+    const start = references[index - 1]?.end ?? 0
+    return [
+      ...(part.start > start
+        ? [{ type: "text" as const, content: text.slice(start, part.start), start, end: part.start }]
+        : []),
+      part,
+    ]
+  })
+  const start = references.at(-1)?.end ?? 0
+  return [
+    ...parts,
+    ...(text.length > start || !parts.length
+      ? [{ type: "text" as const, content: text.slice(start), start, end: text.length }]
+      : []),
+    ...queuedPromptAttachments(item).filter((part) => part.type === "image"),
+  ]
+}
+
 function isComposerAttachment(file: NonNullable<QueuedPrompt["payload"]["files"]>[number]) {
  return !file.mention && file.source.type === "inline"
 }
@@ -224,7 +224,12 @@ export function ActiveSessionComposerRegion(props: {
        <div class="relative">
          <SessionQueuePanel queue={props.model.queue} />
          <div class="relative z-10">
-            <Composer model={props.model.composer} borderUnderlay suggestionBoundary={props.suggestionBoundary} />
+            <Composer
+              model={props.model.composer}
+              borderUnderlay
+              readOnly={props.model.queue.undoing()}
+              suggestionBoundary={props.suggestionBoundary}
+            />
          </div>
        </div>
      }
@@ -14,7 +14,6 @@ import { createStore } from "solid-js/store"
 import { ResizeHandle } from "@opencode/ui/resize-handle"
 import { MessageTimeline } from "@/session/timeline/message-timeline"
 import { useServer } from "@/runtime/server/current"
-import { projectForSession } from "@/shell/layout/helpers"
 import { ComposerDropzone } from "@/composer/dropzone"
 import type { SessionModel } from "@/session/model"
 import { SESSION_PANEL_WIDTH_MIN } from "@/session/session-panel-width"
@@ -66,7 +65,7 @@ function SessionScreenContent(props: { session: SessionModel; browser: ReturnTyp
  const server = useServer()
  const detailsProject = createMemo(() => {
    const info = session.data.info()
-    return info ? projectForSession(info, server.ctx.sync.data.project) : undefined
+    return info ? server.ctx.projects.detailsForSession(info) : undefined
  })
  const isDesktop = session.isDesktop
  const btw = createSessionBtw(session)
@@ -12,7 +12,7 @@ import { useServer } from "@/runtime/server/current"
 import { ServerConnection } from "@/runtime/server/registry"
 import { useLanguage } from "@/runtime/i18n/language"
 import { usePlatform } from "@/runtime/platform/platform"
-import { displayName, errorMessage, getProjectAvatarSource, projectForSession } from "@/shell/layout/helpers"
+import { displayName, errorMessage, getProjectAvatarSource } from "@/shell/layout/helpers"
 import { getProjectAvatarVariant, useLayout, type LocalProject } from "@/shell/state/layout"
 import { tabKey, useTabs } from "@/shell/tabs/tabs"
 import { useSettingsSurface } from "@/settings/surface"
@@ -319,11 +319,8 @@ export function SessionIdentityHeader(props: { sessionID: string; session?: Sess
      : sessionTitle(props.session?.title ?? (parentID() ? undefined : info()?.title)),
  )
  const project = createMemo(() => {
+    if (props.session) return server.ctx.projects.forSession(props.session)
    const projects = server.ctx.projects.list()
-    if (props.session)
-      return (
-        projectForSession(props.session, projects) ?? projectForSession(props.session, server.ctx.sync.data.project)
-      )
    const value = directory()
    if (!value) return undefined
    const key = pathKey(value)
@@ -1,7 +1,7 @@
 import { DiffChanges } from "@opencode/ui/diff-changes"
 import { Icon } from "@opencode/ui/icon"
 import { getFilename } from "@opencode/util/path"
-import { createMemo, Show, type JSX } from "solid-js"
+import { createMemo, Show } from "solid-js"
 import { useLanguage } from "@/runtime/i18n/language"
 import type { Project } from "@/runtime/server/types"
 import { useSettings } from "@/settings/model"
@@ -16,7 +16,6 @@ export function SessionSummaryPanel(props: {
  shown?: boolean
  mobile?: boolean
  project: Project
-  avatar?: JSX.Element
  directory: string
  local: boolean
  branch?: string
@@ -44,7 +43,7 @@ export function SessionSummaryPanel(props: {
  return (
    <div data-component="session-summary-panel" data-mobile={props.mobile || undefined}>
      <div>
-        <ProjectSummaryCard project={props.project} avatar={props.avatar}>
+        <ProjectSummaryCard project={props.project}>
          <SessionWorkspaceMenu
            eligible={props.moveEligible}
            sessionID={props.sessionID}
@@ -1,16 +1,14 @@
 import { Icon } from "@opencode/ui/icon"
-import { ProjectAvatar } from "@opencode/ui/project-avatar"
-import { createUniqueId, Show, type ParentProps, type JSX } from "solid-js"
+import { createUniqueId, Show, type ParentProps } from "solid-js"
 import type { Project } from "@/runtime/server/types"
 import { useSettings } from "@/settings/model"
-import { displayName, getProjectAvatarSource } from "@/shell/layout/helpers"
-import { getProjectAvatarVariant } from "@/shell/state/layout"
+import { displayName } from "@/shell/layout/helpers"
+import { ProjectIcon } from "@/shell/layout/project-icon"
 import "./summary.css"

 export function ProjectSummaryCard(
  props: ParentProps<{
    project: Pick<Project, "name" | "worktree" | "icon"> & { id?: string }
-    avatar?: JSX.Element
  }>,
 ) {
  const settings = useSettings()
@@ -26,13 +24,7 @@ export function ProjectSummaryCard(
        aria-controls={contentID}
        onClick={() => settings.sessionSummary.setProjectExpanded(!expanded())}
      >
-        {props.avatar ?? (
-          <ProjectAvatar
-            fallback={displayName(props.project)}
-            src={getProjectAvatarSource(props.project.id, props.project.icon)}
-            variant={getProjectAvatarVariant(props.project.icon?.color)}
-          />
-        )}
+        <ProjectIcon project={props.project} />
        <span dir="auto" class="session-summary-label">
          {displayName(props.project)}
        </span>
@@ -31,7 +31,6 @@ import { getReadyMarkdown, preloadMarkdown } from "@opencode/session-ui/markdown
 import { createTimelineController, type TimelineController, type TimelineSessionSource } from "./controller"
 import { createTimelineVirtualizer } from "./virtualizer"
 import { containsDirectory, isWorkspaceDirectory } from "@/workspaces/paths"
-import { projectForSession } from "@/shell/layout/helpers"
 import { parseCommentNote, readPromptPresentation } from "@/composer/comment-note"
 import { useCommand } from "@/shell/commands/command"
 import { SessionAncestorTrail, SessionProjectMenu, SessionTitleHeader } from "../session-identity-header"
@@ -143,14 +142,14 @@ function MessageTimelineView(
    const session = props.session.data.info()
    const projects = server.ctx.sync.data.project
    return session
-      ? projectForSession(session, projects)
+      ? server.ctx.projects.detailsForSession(session)
      : projects.find((item) => containsDirectory(item.worktree, sessionDirectory()))
  })
  const workspaceSession = createMemo(() => isWorkspaceDirectory(project(), sessionDirectory()))
-  const avatarProject = createMemo(() => {
+  const headerProject = createMemo(() => {
    const session = props.session.data.info()
    if (!session) return
-    return projectForSession(session, server.ctx.projects.list()) ?? project()
+    return server.ctx.projects.forSession(session)
  })
  createEffect(() => {
    const directory = project()?.worktree
@@ -408,7 +407,7 @@ function MessageTimelineView(
              <div class="flex items-center gap-1 min-w-0 flex-1">
                <div class="flex items-center gap-0.5 min-w-0 flex-1 w-full">
                  <SessionProjectMenu
-                    project={avatarProject()}
+                    project={headerProject()}
                    directory={sessionDirectory()}
                    workspace={workspaceSession()}
                  />
@@ -0,0 +1,34 @@
+import { describe, expect, test } from "bun:test"
+import type { IntegrationInfo } from "@opencode/client/promise"
+import { activeProviderAccount, providerAccounts } from "./accounts"
+
+const integration = (connections: IntegrationInfo["connections"]): IntegrationInfo => ({
+  id: "openai",
+  name: "OpenAI",
+  methods: [],
+  connections,
+})
+
+describe("provider accounts", () => {
+  test("preserves the server's active-first credential order", () => {
+    const value = integration([
+      { type: "credential", id: "cred_work", label: "Work", method: "key" },
+      { type: "env", name: "OPENAI_API_KEY" },
+      { type: "credential", id: "cred_personal", label: "Personal", method: "oauth" },
+    ])
+
+    expect(providerAccounts(value)).toEqual([
+      { type: "credential", id: "cred_work", label: "Work", method: "key" },
+      { type: "credential", id: "cred_personal", label: "Personal", method: "oauth" },
+    ])
+    expect(activeProviderAccount(value)).toEqual({ type: "credential", id: "cred_work", label: "Work", method: "key" })
+  })
+
+  test("returns no active account for environment-only integrations", () => {
+    const value = integration([{ type: "env", name: "OPENAI_API_KEY" }])
+
+    expect(providerAccounts(value)).toEqual([])
+    expect(activeProviderAccount(value)).toBeUndefined()
+    expect(providerAccounts(undefined)).toEqual([])
+  })
+})
@@ -0,0 +1,11 @@
+import type { ConnectionInfo, IntegrationInfo } from "@opencode/client/promise"
+
+export type ProviderAccount = Extract<ConnectionInfo, { type: "credential" }>
+
+export function providerAccounts(integration: IntegrationInfo | undefined) {
+  return integration?.connections.filter((connection): connection is ProviderAccount => connection.type === "credential") ?? []
+}
+
+export function activeProviderAccount(integration: IntegrationInfo | undefined) {
+  return providerAccounts(integration)[0]
+}
@@ -2,6 +2,7 @@ import { Button } from "@opencode/ui/button"
 import { Badge } from "@opencode/ui/badge"
 import { useDialog } from "@opencode/ui/context/dialog"
 import { Icon } from "@opencode/ui/icon"
+import { Menu } from "@opencode/ui/menu"
 import { OpenCodeLogo } from "@/providers/opencode-logo"
 import { showToast } from "@/shell/notifications/toast"
 import { popularProviders, useProviders } from "@/providers/catalog/providers"
@@ -16,6 +17,7 @@ import { CONSOLE_INTEGRATION, CONSOLE_PROVIDERS } from "@/providers/connect/cont
 import { DialogConnectProvider, useProviderConnectController } from "@/providers/connect/dialog"
 import { ProviderModelIcon } from "@/providers/models/provider-group"
 import { SettingsList } from "@/settings/list"
+import { activeProviderAccount, providerAccounts, type ProviderAccount } from "./accounts"
 import "@/settings/settings.css"

 type ProviderSource = "env" | "api" | "account" | "config" | "custom"
@@ -47,6 +49,7 @@ export const SettingsProviders: Component<{
    disconnecting: {} as Record<string, "removing" | "removed" | "absent" | undefined>,
    consoleExpanded: false,
    connecting: false,
+    credentialID: undefined as string | undefined,
  })
  const updateDisconnecting = (ids: string[], status: "removing" | "removed" | "absent" | undefined) =>
    setState("disconnecting", (current) => ({
@@ -190,6 +193,8 @@ export const SettingsProviders: Component<{
    return currentSource !== "env" && currentSource !== "config"
  }

+  const canManageAccounts = (item: ProviderItem) => providerAccounts(integration(item)).length > 0
+
  const note = (id: string) => PROVIDER_NOTES.find((item) => item.match(id))?.key

  const disconnect = async (item: ProviderItem, name: string) => {
@@ -230,6 +235,132 @@ export const SettingsProviders: Component<{
      })
  }

+  const refreshAccounts = async () => {
+    const location = props.directory ? { directory: props.directory } : undefined
+    data.location.integration.invalidate(location)
+    data.location.provider.invalidate(location)
+    data.location.model.invalidate(location)
+    await Promise.all([
+      data.location.integration.sync(location),
+      data.location.provider.sync(location),
+      data.location.model.sync(location),
+    ])
+  }
+
+  const accountError = (error: unknown) => {
+    const message = error instanceof Error ? error.message : String(error)
+    showToast({ title: language.t("common.requestFailed"), description: message })
+  }
+
+  const activate = async (provider: ProviderItem, providerName: string, account: ProviderAccount) => {
+    if (activeProviderAccount(integration(provider))?.id === account.id) return
+    setState("credentialID", account.id)
+    await serverSdk.api.credential
+      .activate({ credentialID: account.id })
+      .then(refreshAccounts)
+      .then(() =>
+        showToast({
+          variant: "success",
+          icon: "circle-check",
+          title: language.t("settings.providers.account.switched.title", { provider: providerName }),
+          description: language.t("settings.providers.account.switched.description", { account: account.label }),
+        }),
+      )
+      .catch(accountError)
+      .finally(() => setState("credentialID", undefined))
+  }
+
+  const remove = async (provider: ProviderItem, providerName: string, account: ProviderAccount) => {
+    const final = providerAccounts(integration(provider)).length === 1
+    setState("credentialID", account.id)
+    await serverSdk.api.credential
+      .remove({ credentialID: account.id })
+      .then(refreshAccounts)
+      .then(() =>
+        showToast({
+          variant: "success",
+          icon: "circle-check",
+          title: language.t(
+            final ? "provider.disconnect.toast.disconnected.title" : "settings.providers.account.removed.title",
+            final ? { provider: providerName } : { account: account.label },
+          ),
+          description: language.t(
+            final
+              ? "provider.disconnect.toast.disconnected.description"
+              : "settings.providers.account.removed.description",
+            { provider: providerName },
+          ),
+        }),
+      )
+      .catch(accountError)
+      .finally(() => setState("credentialID", undefined))
+  }
+
+  function AccountMenu(menuProps: { provider: ProviderItem; name?: string }) {
+    const accounts = () => providerAccounts(integration(menuProps.provider))
+    const active = () => activeProviderAccount(integration(menuProps.provider))
+    const name = () => menuProps.name ?? menuProps.provider.name
+
+    return (
+      <Menu placement="bottom-end" gutter={6}>
+        <Menu.Trigger
+          as={Button}
+          size="normal"
+          variant="ghost-muted"
+          class="settings-provider-account-trigger"
+          aria-label={language.t("settings.providers.account.manage", { provider: name() })}
+        >
+          <span>{active()?.label}</span>
+          <Icon name="chevron-down" size="small" />
+        </Menu.Trigger>
+        <Menu.Portal>
+          <Menu.Content class="settings-provider-account-menu" onEscapeKeyDown={(event) => event.stopPropagation()}>
+            <Menu.Group>
+              <Menu.GroupLabel>{language.t("settings.providers.account.group")}</Menu.GroupLabel>
+              <Menu.RadioGroup
+                class="settings-provider-account-list"
+                value={active()?.id}
+                onChange={(credentialID) => {
+                  const account = accounts().find((item) => item.id === credentialID)
+                  if (account) void activate(menuProps.provider, name(), account)
+                }}
+              >
+                <For each={accounts()}>
+                  {(account) => (
+                    <Menu.RadioItem value={account.id} closeOnSelect disabled={state.credentialID !== undefined}>
+                      <span class="settings-provider-account-label">{account.label}</span>
+                    </Menu.RadioItem>
+                  )}
+                </For>
+              </Menu.RadioGroup>
+            </Menu.Group>
+            <Menu.Separator />
+            <Menu.Item disabled={state.credentialID !== undefined} onSelect={() => connect(menuProps.provider.id)}>
+              {language.t("settings.providers.account.add")}
+            </Menu.Item>
+            <Menu.Sub placement="left-start">
+              <Menu.SubTrigger disabled={state.credentialID !== undefined || accounts().length === 0}>
+                {language.t("settings.providers.account.remove")}
+              </Menu.SubTrigger>
+              <Menu.SubContent class="settings-provider-account-submenu">
+                <For each={accounts()}>
+                  {(account) => (
+                    <Menu.Item
+                      badge={account.id === active()?.id ? language.t("settings.providers.account.active") : undefined}
+                      onSelect={() => void remove(menuProps.provider, name(), account)}
+                    >
+                      <span class="settings-provider-account-label">{account.label}</span>
+                    </Menu.Item>
+                  )}
+                </For>
+              </Menu.SubContent>
+            </Menu.Sub>
+          </Menu.Content>
+        </Menu.Portal>
+      </Menu>
+    )
+  }
+
  return (
    <>
      <div class="settings-tab-header">
@@ -268,22 +399,27 @@ export const SettingsProviders: Component<{
                            </div>
                          </div>
                          <Show
-                            when={canDisconnect(item)}
+                            when={canManageAccounts(item)}
                            fallback={
-                              <span class="settings-provider-env-hint">
-                                {language.t("settings.providers.connected.environmentDescription")}
-                              </span>
+                              <Show
+                                when={canDisconnect(item)}
+                                fallback={
+                                  <span class="settings-provider-env-hint">
+                                    {language.t("settings.providers.connected.environmentDescription")}
+                                  </span>
+                                }
+                              >
+                                <Button
+                                  size="normal"
+                                  variant="ghost-muted"
+                                  onClick={() => void disconnect(item, item.name)}
+                                >
+                                  {language.t("common.disconnect")}
+                                </Button>
+                              </Show>
                            }
                          >
-                            <Button
-                              size="normal"
-                              variant="ghost-muted"
-                              onClick={() =>
-                                void disconnect(item, item.name)
-                              }
-                            >
-                              {language.t("common.disconnect")}
-                            </Button>
+                            <AccountMenu provider={item} />
                          </Show>
                        </div>
                      }
@@ -326,13 +462,20 @@ export const SettingsProviders: Component<{
                                </Show>
                              </div>
                            </div>
-                            <Button
-                              size="normal"
-                              variant="ghost-muted"
-                              onClick={() => void disconnect(item, language.t("provider.connect.opencode.name"))}
+                            <Show
+                              when={canManageAccounts(item)}
+                              fallback={
+                                <Button
+                                  size="normal"
+                                  variant="ghost-muted"
+                                  onClick={() => void disconnect(item, language.t("provider.connect.opencode.name"))}
+                                >
+                                  {language.t("common.disconnect")}
+                                </Button>
+                              }
                            >
-                              {language.t("common.disconnect")}
-                            </Button>
+                              <AccountMenu provider={item} name={language.t("provider.connect.opencode.name")} />
+                            </Show>
                          </div>
                          <Show when={state.consoleExpanded}>
                            <div class="settings-provider-console-list">
@@ -887,6 +887,47 @@
  opacity: 1;
 }

+.settings-provider-account-trigger {
+  min-width: 0;
+  max-width: min(240px, 45%);
+}
+
+.settings-provider-account-trigger > span {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.settings-provider-account-menu[data-component="menu-v2-content"] {
+  width: min(260px, calc(100vw - 32px));
+  overflow: visible;
+}
+
+.settings-provider-account-list {
+  max-height: min(240px, calc(var(--kb-popper-content-available-height) - 120px));
+  overflow-y: auto;
+}
+
+.settings-provider-account-submenu[data-component="menu-v2-content"] {
+  width: min(260px, calc(100vw - 32px));
+  max-height: min(360px, var(--kb-popper-content-available-height));
+  overflow-y: auto;
+}
+
+.settings-provider-account-label {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+@container settings-panel (max-width: 520px) {
+  .settings-provider-account-trigger {
+    max-width: 100%;
+  }
+}
+
 .settings-providers-view-all {
  margin-top: 20px;
  padding: 0;
@@ -11,7 +11,7 @@ import { useLayout, type LocalProject } from "@/shell/state/layout"
 import { ServerConnection } from "@/runtime/server/registry"
 import { useServerSDK } from "@/runtime/server/client"
 import { useTabs } from "@/shell/tabs/tabs"
-import { displayName, projectForSession } from "@/shell/layout/helpers"
+import { displayName, resolveProjectForSession } from "@/shell/layout/helpers"
 import { createSessionTabs } from "@/session/helpers"
 import { useSessionLayout } from "@/session/session-layout"
 import { useServer } from "@/runtime/server/current"
@@ -253,9 +253,7 @@ export function createServerSessionEntries(props: {
    })
    if (current.signal.aborted) return []
    const opened = props.opened()
-    const openedByID = new Map(opened.flatMap((project) => (project.id ? [[project.id, project] as const] : [])))
    const stored = props.stored().map((project) => ({ ...project, expanded: false }))
-    const storedByID = new Map(stored.map((project) => [project.id, project] as const))
    return Promise.all([
      props.load(search, current.signal).then(
        (result) => result.data,
@@ -271,8 +269,7 @@ export function createServerSessionEntries(props: {
      [...new Map([...exact, ...listed].map((session) => [session.id, session] as const)).values()]
        .filter((session) => !session.time.archived)
        .map((session) => {
-          const project =
-            projectForSession(session, opened, openedByID) ?? projectForSession(session, stored, storedByID)
+          const project = resolveProjectForSession(session, opened, stored)
          return {
            id: `session:${props.server}:${session.id}`,
            type: "session" as const,
@@ -50,6 +50,17 @@ export const childSessionOnPath = (sessions: SessionInfo[] | undefined, rootID:
 export const displayName = (project: { name?: string; worktree: string }) =>
  project.name || getFilename(project.worktree) || project.worktree

+type ProjectAppearance = {
+  name?: string
+  worktree: string
+  icon?: { color?: string; url?: string; override?: string }
+}
+
+function withProjectAppearance<T extends ProjectAppearance>(metadata: T, appearance?: ProjectAppearance) {
+  if (!appearance || appearance === metadata) return metadata
+  return { ...metadata, name: displayName(appearance), icon: appearance.icon }
+}
+
 export function toggleHomeProjectSelection(
  current: HomeProjectSelection | undefined,
  server: ServerConnection.Key,
@@ -97,11 +108,59 @@ export function getProjectAvatarSource(id?: string, icon?: { color?: string; url
 export function projectForSession<T extends { id?: string; worktree: string; sandboxes?: string[] }>(
  session: SessionInfo,
  projects: T[],
-  byID: Map<string, T> = new Map(projects.flatMap((project) => (project.id ? [[project.id, project] as const] : []))),
 ) {
-  const direct = byID.get(session.projectID)
-  if (direct) return direct
-  return projects.find((project) => isProjectDirectory(project, session.location.directory))
+  const matching = projects.filter((project) => project.id === session.projectID)
+  if (matching.length === 1) return matching[0]
+  if (matching.length > 1) {
+    const directory = pathKey(session.location.directory)
+    const exact =
+      matching.find((project) => pathKey(project.worktree) === directory) ??
+      matching.find((project) => project.sandboxes?.some((sandbox) => pathKey(sandbox) === directory))
+    if (exact) return exact
+    return (
+      matching
+        .filter((project) => isProjectDirectory(project, session.location.directory))
+        .sort((a, b) => b.worktree.length - a.worktree.length)[0] ?? matching.at(-1)
+    )
+  }
+  const directory = pathKey(session.location.directory)
+  const exact =
+    projects.find((project) => pathKey(project.worktree) === directory) ??
+    projects.find((project) => project.sandboxes?.some((sandbox) => pathKey(sandbox) === directory))
+  if (exact) return exact
+  return projects
+    .filter((project) => isProjectDirectory(project, session.location.directory))
+    .sort((a, b) => b.worktree.length - a.worktree.length)[0]
+}
+
+export function resolveProjectForSession<
+  T extends { id?: string; worktree: string; sandboxes?: string[] },
+  U extends { id?: string; worktree: string; sandboxes?: string[] },
+>(session: SessionInfo, opened: T[], stored: U[]) {
+  const current = projectForSession(session, opened)
+  if (current?.id === session.projectID) {
+    const unresolved = opened.find(
+      (project) => !project.id && pathKey(project.worktree) === pathKey(session.location.directory),
+    )
+    if (!unresolved) return current
+    const canonical = projectForSession(session, stored)
+    if (canonical?.id === session.projectID && pathKey(canonical.worktree) === pathKey(unresolved.worktree))
+      return unresolved
+    return current
+  }
+  const synced = projectForSession(session, stored)
+  if (synced?.id !== session.projectID) return current ?? synced
+  if (current && !current.id && pathKey(current.worktree) === pathKey(session.location.directory)) return current
+  return synced
+}
+
+export function resolveSessionDetailsProject<
+  T extends ProjectAppearance & { id?: string; sandboxes?: string[] },
+  U extends ProjectAppearance & { id?: string; sandboxes?: string[] },
+>(session: SessionInfo, opened: T[], stored: U[]) {
+  const metadata = projectForSession(session, stored)
+  if (!metadata) return
+  return withProjectAppearance(metadata, resolveProjectForSession(session, opened, stored))
 }

 export const errorMessage = (err: unknown, fallback: string) => {
@@ -4,7 +4,7 @@ import { displayName, getProjectAvatarSource } from "@/shell/layout/helpers"
 import { getProjectAvatarVariant, type LocalProject } from "@/shell/state/layout"

 type ProjectIconProps = Omit<ProjectAvatarProps, "fallback" | "src" | "variant"> & {
-  project: LocalProject
+  project: Pick<LocalProject, "id" | "name" | "worktree" | "icon">
  fallback?: string
  icon?: LocalProject["icon"]
 }
@@ -9,7 +9,7 @@ import { Menu } from "@opencode/ui/menu"
 import { useGlobal, useServerCtx } from "@/runtime/server/runtime"
 import { useLanguage } from "@/runtime/i18n/language"
 import { ServerConnection, serverName, useServers } from "@/runtime/server/registry"
-import { displayName, projectForSession } from "@/shell/layout/helpers"
+import { displayName } from "@/shell/layout/helpers"
 import { SessionTabAvatar } from "@/shell/layout/session-tab-avatar"
 import { SessionProgressIndicatorV2 } from "@opencode/session-ui/v2/session-progress-indicator-v2"
 import type { SessionInfo } from "@opencode/client/promise"
@@ -57,7 +57,7 @@ export function TabNavItem(props: {
  const project = createMemo(() => {
    const session = props.session
    if (!session) return
-    return projectForSession(session, serverCtx()?.projects.list() ?? [])
+    return serverCtx()?.projects.forSession(session)
  })
  const title = createMemo(() => {
    const session = props.session
@@ -29,7 +29,6 @@ import { MobileDrawer, MobileDrawerContent, MobileDrawerLabel, MobileDrawerTrigg
 import { sessionTabTitle } from "./tab-title"
 import { SessionTabAvatar } from "@/shell/layout/session-tab-avatar"
 import { SessionProgressIndicatorV2 } from "@opencode/session-ui/v2/session-progress-indicator-v2"
-import { projectForSession } from "@/shell/layout/helpers"
 import { useSettingsDialog } from "@/settings/command"
 import { updaterAction } from "@/shell/updates/action"
 import type { UpdaterState } from "@/shell/updates/types"
@@ -441,7 +440,7 @@ export function Titlebar(props: {
              const value = session()
              if (!tab || !value) return
              const conn = global.servers.list().find((item) => ServerConnection.key(item) === tab.server)
-              return projectForSession(value, conn ? global.ensureServerCtx(conn).projects.list() : [])
+              return conn ? global.ensureServerCtx(conn).projects.forSession(value) : undefined
            })
            const currentTitle = () => {
              const tab = currentTab()
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/cli",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "type": "module",
  "license": "MIT",
  "bin": {
@@ -41,7 +41,6 @@
    "effect": "catalog:",
    "immer": "11.1.4",
    "jsonc-parser": "3.3.1",
-    "open": "10.1.2",
    "solid-js": "catalog:",
    "tree-sitter-bash": "0.25.0",
    "tree-sitter-powershell": "0.25.10",
@@ -16,8 +16,8 @@ export function requireInteractive(message: string) {
 }

 export const openUrl = Effect.fn("cli.prompt.open-url")(function* (url: string) {
-  const { default: open } = yield* Effect.promise(() => import("open"))
-  yield* Effect.promise(() => open(url)).pipe(Effect.ignore)
+  const browser = yield* Effect.promise(() => import("@opencode/util/open"))
+  yield* Effect.promise(() => browser.openUrl(url)).pipe(Effect.ignore)
 })

 export function handlePromptErrors<A, E, R>(effect: Effect.Effect<A, E, R>) {
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/client",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "type": "module",
  "license": "MIT",
  "repository": {
@@ -85,8 +85,9 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Array binding and assignment destructuring from strings, Maps, Sets, URLSearchParams, custom synchronous
      iterators, and synchronous generators, including stepwise elisions/rest and `IteratorClose` on early completion
      or binding/default failure.
- [ ] Object destructuring from primitives follows ToObject (`const { length } = "abc"`, `const {} = 1`); non-object
-      sources are rejected.
+- [x] Object destructuring from primitives follows ToObject: `const { length } = "abc"` is `3`, `const { toFixed } = 1`
+      finds the built-in, `const {} = 1` is a no-op, and a rest element copies a string's indexes (`{ 1: "y", 2: "z" }`).
+      Only `null` and `undefined` sources throw (`Cannot destructure null as it is null.`).
 - [x] Destructuring reads through the prototype chain like member access: `const { constructor } = error` and
      `const { slice } = values` find the inherited built-in.
 - [x] Any assignment target as a `for...in` head, like `for...of`: `for (x.y in obj)`, `for (a[i++] in obj)`, and
@@ -130,7 +131,7 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Built-in method references as callbacks, such as `values.map(Math.abs)`, `records.map(JSON.stringify)`,
      `items.forEach(console.log)`, and `Promise.resolve(-1).then(Math.abs)`. Extra callback arguments a built-in
      does not consume are ignored, like JS, and consumed arguments coerce, like JS (`"3.7".replace(/\d\.\d/,
-    Math.floor)` is `"3"`). A detached method loses its receiver, as in JS: `values.filter("abc".includes)` is a `TypeError`
+Math.floor)` is `"3"`). A detached method loses its receiver, as in JS: `values.filter("abc".includes)` is a `TypeError`
      because `includes` is called without a string `this`.
 - [x] Constructors work as callbacks with JS call semantics: `Error` types construct (`messages.map(Error)`),
      and new-requiring constructors (`Map`, `Set`, `URL`, `URLSearchParams`, `Headers`, `Promise`) throw a `TypeError`,
@@ -154,8 +155,9 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
      array, an array-like object (its `length` clamped and capped like `Array.from`), or `null`/`undefined`. A
      bound function is named `bound f`, has its remaining `length`, and is not constructible.
 - [x] `JSON.parse` revivers and `JSON.stringify` function replacers see the holder object as `this`.
- [ ] The optional `thisArg` of iteration methods (`map`, `forEach`, `Map.prototype.forEach`, `Array.from`, …) is
-      accepted but not yet passed as `this`; callbacks run with `this` undefined.
+- [x] The optional `thisArg` of the Array, Uint8Array, and `Array.from` callback methods and of Map, Set,
+      URLSearchParams, and Headers `forEach` is the callback's `this`: `[1, 2].forEach(function () { this.n++ }, c)`
+      increments `c.n` twice. Arrows ignore it, as in JS; `reduce`/`reduceRight` take an initial value instead.
 - [ ] User-defined constructor calls.
 - [ ] Classes and private fields.
 - [x] Functions are objects: they hold own properties (`fn.count = 1`), enumerate them, and expose read-only `name`
@@ -224,8 +226,8 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [x] Coercion helpers and template interpolation accept functions and namespaces: `String(fn)` and `${fn}` give
      `"[object Function]"` rather than the source text, `isNaN(fn)` is `true`.
 - [x] `==` and `!=` follow IsLooselyEqual: objects (including functions and tool references) compare by identity, a
-      nullish operand never coerces the other side, and a data object facing a primitive coerces through its built-in
-      primitive form (`fn == null` is `false`, `fn == fn` is `true`, `[1] == 1` and `[1, 2] == "1,2"` are `true`).
+      nullish operand never coerces the other side, and a data object facing a primitive converts through its own
+      `valueOf`/`toString` (default hint) (`fn == null` is `false`, `fn == fn` is `true`, `[1] == 1` and `[1, 2] == "1,2"` are `true`).
      `switch` matches cases with `===`, so `switch (fn) { case fn: }` selects, and `Object.is` compares any two
      values. Operators inspect only their direct operands, so `rows == null` on a large array costs the same as
      `rows === null`, and an object merely holding a function inside (`[fn] + ""`, `-[fn]`) coerces like any other
@@ -233,13 +235,26 @@ ultimate source of truth. Upstream test262 files run verbatim from `test/test262
 - [ ] Coercing a function, promise, generator, or tool reference itself: `fn + ""`, `-fn`, `fn++`, and `fn == 1`
      throw `TypeError: Binary operators require data values.` (or the unary/update form) where JavaScript would use
      the source text or `NaN`.
- [ ] ToPrimitive on program objects: operators, `Number`/`String`, `Error(message)`, `parseInt` radix, multi-argument
-      `Date` construction and `Date.UTC`, and numeric built-in arguments (`Math.max`, `at`, `indexOf` start) should call
-      the object's own `valueOf`/`toString` in spec order and surface their throws. Today they use the built-in form
-      (`NaN`, `"[object Object]"`) and ignore own methods. Date setters and one-argument `Date` construction already
-      follow ToPrimitive.
- [x] Property keys follow ToPropertyKey: `x[null]`, `x[true]`, and objects (via their built-in string form) become
-      string keys.
+- [x] ToPrimitive on program objects: `+ - * / % **`, the relational and bitwise operators, unary `+ - ~`, `++`/`--`,
+      compound assignment, `${x}`, `Number`/`String`/`isNaN`/`isFinite`, `parseInt`/`parseFloat` (text and radix),
+      `Math.*` arguments, `Error(message)`, and `Array.prototype.join`/`toString` elements call the object's own
+      `valueOf`/`toString` in spec order (both operands left then right, `+` with the default hint) and surface their
+      throws: `{ valueOf() { return 7 } } * 2` is `14`, `` `${{ toString() { return "x" } }}` `` is `"x"`, and
+      `[1, 2]` with `arr.toString = () => "x"` makes `arr + ""` `"x"`. Dates keep their `Symbol.toPrimitive`
+      behavior (`date + 1` concatenates, `date - date` subtracts).
+- [x] String and Number method arguments convert through ToPrimitive in spec order, receiver first: search strings,
+      separators, fills, and replacements with the string hint, indexes, counts, digits, and radixes with the number
+      hint (`"abc".indexOf({ toString() { return "b" } })` is `1`, `(255).toString({ valueOf() { return 16 } })` is
+      `"ff"`, `String.prototype.trim.call({ toString() { return " a " } })` is `"a"`). Only consumed positions
+      convert; a RegExp pattern is used as is, and `includes`/`startsWith`/`endsWith` reject one before converting.
+- [ ] ToPrimitive elsewhere: `Error.prototype.toString` on an object `message` and numeric arguments of the Array and
+      Uint8Array methods (`at`, `indexOf` start, `slice`) still use the built-in form (`NaN`, `"[object Object]"`) and
+      ignore own methods.
+- [x] Property keys follow ToPropertyKey: `x[null]` and `x[true]` become string keys, and a data object key
+      converts through its own `toString`/`valueOf` (string hint) exactly once per access, in reads, writes,
+      compound assignment, `++`, `delete`, `in`, object literals, and destructuring:
+      `o[{ toString() { return "id" } }] += 1` updates `o.id`. A nullish base throws before the key converts, as
+      in JS. Opaque values (functions, promises, tool references) keep their built-in string form.

 ## Promises and tools

@@ -300,8 +315,9 @@ reject }` object.
 - [x] `Object()` and `new Object()` return `{}` for nullish arguments and pass objects through unchanged;
      primitive wrapper objects (`Object(1)`) are rejected explicitly.
 - [x] Computed property names and object spread. Any value works as a key (ToPropertyKey): strings, numbers, and the
-      two confined symbols as themselves, everything else as its string form (`o[null]` is `o["null"]`, `o[{}]` is
-      `o["[object Object]"]`), in reads, writes, literals, `in`, and destructuring.
+      two confined symbols as themselves, data objects through their own `toString` (`o[[1, 2]]` is `o["1,2"]`), and
+      everything else as its string form (`o[null]` is `o["null"]`), in reads, writes, literals, `in`, and
+      destructuring.
 - [x] `Object.keys`, `Object.values`, `Object.entries`, `Object.hasOwn`, `Object.assign`, and `Object.fromEntries`, with
      synchronous iterator support for `fromEntries`. Sources follow ToObject: strings enumerate by index, other
      primitives and wrappers contribute nothing, and `null`/`undefined` throw. `Object.assign` accepts array
@@ -362,7 +378,6 @@ reject }` object.
      shares one prototype, where JavaScript gives each collection its own; `Object.getPrototypeOf` shows the
      difference.
 - [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`.
 - [x] Canonical array/string index parsing: keys such as `"01"` are ordinary properties rather than aliases of index
      `1`.
@@ -375,8 +390,9 @@ reject }` object.
      `flat(1.9)`, `with(1.5, v)`, `Math.max("3", "2")`, `parseInt("11", "2")`, `(1.5).toFixed("2")`,
      `String.fromCharCode("65")`, and the Uint8Array equivalents. `join(sep)` and `JSON.parse(text)` apply ToString
      (`join(null)` is `"1null2"`, `JSON.parse(123)` is `123`). `Array.from({ length: "2" })` applies ToLength; a
-      promise source still throws with an `await` hint rather than JS's silent `[]`. A program object's own
-      `valueOf`/`toString` is not consulted yet (see ToPrimitive above).
+      promise source still throws with an `await` hint rather than JS's silent `[]`. `join`, `Math.*`, `parseInt`,
+      and the String and Number methods consult a program object's own `valueOf`/`toString`; the array methods do not
+      yet (see ToPrimitive above).

 ## Strings

@@ -393,14 +409,15 @@ reject }` object.
 - [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
-      expressions with a native-style `TypeError`. Opaque runtime references still reject as data errors, and
-      `repeat` still requires a finite non-negative count.
+      expressions with a native-style `TypeError`. Data objects convert through their own `toString`/`valueOf` (see
+      ToPrimitive above). Opaque runtime references still reject as data errors, and `repeat` still requires a finite
+      non-negative count.
 - [x] Native no-argument parity for `match()`, `matchAll()`, and `search()`; all behave as an empty pattern.
 - [x] `String.raw`, on a template object or any `{ raw }` object; raw strings and substitutions coerce through their own
      `toString`.
 - [x] `match`, `matchAll`, `search`, and `split` read any non-RegExp argument as a pattern string, as `new RegExp(arg)`
-      would: `"a1b".match(1)` matches `/1/`, `search(null)` looks for `"null"`, and `undefined` is the empty pattern.
-      Objects use their built-in string form until ToPrimitive lands.
+      would: `"a1b".match(1)` matches `/1/`, `search(null)` looks for `"null"`, `undefined` is the empty pattern, and
+      an object supplies its own `toString`.

 ## Numbers and Math

@@ -454,15 +471,15 @@ reject }` object.
 - [x] `getTimezoneOffset`, arithmetic, relational comparison, and `instanceof Date`.
 - [x] Date values serialize to ISO strings; invalid dates serialize to `null`.
 - [x] Local and UTC Date setters, including native argument coercion, mutation, rollover, invalid-Date recovery, and
-      `TimeClip` behavior.
+      `TimeClip` behavior. On an invalid Date every setter but `setTime` and `set(UTC)FullYear` answers `NaN` without
+      writing, so a time set inside an argument's `valueOf` survives.
 - [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.
- [x] Date setters and one-argument construction coerce object arguments through their own `valueOf`/`toString` and
-      surface their throws.
- [ ] Multi-argument construction and `Date.UTC` coerce object arguments the same way (see ToPrimitive above).
+- [x] Date setters, construction, and `Date.UTC` coerce object arguments through their own `valueOf`/`toString` in
+      argument order and surface their throws; only the first seven components are converted.
 - [x] Native Date loose-equality and default primitive-coercion semantics, using CodeMode's deterministic ISO string
      representation for the string primitive.
 - [x] Native `RangeError` branding for invalid `toISOString()` calls.
@@ -509,6 +526,11 @@ reject }` object.
 - [x] Map and Set values serialize to `{}` at host/JSON boundaries.
 - [x] Set composition and relation methods: `union`, `intersection`, `difference`, `symmetricDifference`, `isSubsetOf`,
      `isSupersetOf`, and `isDisjointFrom`, including supported Set-like operands.
+- [x] `WeakMap` (`get`, `set`, `has`, `delete`, `getOrInsert`, `getOrInsertComputed`) and `WeakSet` (`add`, `has`,
+      `delete`), constructed from iterables. Keys must be program objects: a primitive or tool reference throws
+      `Invalid value used as weak map key`, while `has`/`delete`/`get` with one answer `false`/`undefined`. Entries are
+      held by a host weak collection, so nothing is retained past the key's own lifetime. As in JS they have no `size`,
+      iteration, or `clear`, `structuredClone` rejects them, and they serialize to `{}` at host boundaries.

 ## URL and URI helpers

@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/codemode",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "description": "Effect-native confined code execution over schema-described tools",
  "type": "module",
  "license": "MIT",
@@ -13,7 +13,7 @@ import {
  type Cursor,
  type Value,
 } from "./objects.js"
-import { typeofValue } from "./references.js"
+import { isOpaque, typeofValue } from "./references.js"

 /** IteratorClose: a consumer failure closes the iterator and wins over any close failure, except that a generator's
 * return() is a return completion, so a failing close wins over it, as after `break`. */
@@ -31,16 +31,15 @@ export const preserveConsumerError = <A, R>(
    })
  })

+export type Hint = "number" | "string" | "default"
+
 /**
 * ToPrimitive: calls `valueOf`/`toString` in hint order and returns the first primitive result. Dates treat the
- * default hint as "string", like their `Symbol.toPrimitive`.
+ * default hint as "string", like their `Symbol.toPrimitive`. Opaque values (functions, promises, generators, tool
+ * references) pass through unchanged so callers reject or describe them in their built-in form.
 */
-export const toPrimitive = <R>(
-  ctx: Interpreter<R>,
-  value: Value,
-  hint: "number" | "string" | "default",
-): Effect.Effect<Value, unknown, R> => {
-  if (!(value instanceof Obj)) return Effect.succeed(value)
+export const toPrimitive = <R>(ctx: Interpreter<R>, value: Value, hint: Hint): Effect.Effect<Value, unknown, R> => {
+  if (!(value instanceof Obj) || isOpaque(value)) return Effect.succeed(value)
  const asString = hint === "string" || (hint === "default" && value instanceof DateObj)
  const order = asString ? ["toString", "valueOf"] : ["valueOf", "toString"]
  return Effect.gen(function* () {
@@ -67,6 +66,28 @@ export const toPrimitiveString = <R>(ctx: Interpreter<R>, value: Value) =>
 export const toPrimitiveNumber = <R>(ctx: Interpreter<R>, value: Value) =>
  Effect.map(toPrimitive(ctx, value, "number"), coerceToNumber)

+/**
+ * Runs a native body on its arguments after ToPrimitive, in order, with one hint for all positions or one per
+ * position. Primitive arguments skip the Effect entirely.
+ */
+export const withPrimitives = <R>(
+  ctx: Interpreter<R>,
+  hints: Hint | ReadonlyArray<Hint>,
+  values: Array<Value>,
+  body: (primitives: Array<Value>) => Value | Effect.Effect<Value, unknown, R>,
+): Value | Effect.Effect<Value, unknown, R> => {
+  if (!values.some((value) => value instanceof Obj)) return body(values)
+  return Effect.flatMap(
+    Effect.forEach(values, (value, index) =>
+      toPrimitive(ctx, value, typeof hints === "string" ? hints : hints[index]!),
+    ),
+    (primitives) => {
+      const result = body(primitives)
+      return Effect.isEffect(result) ? result : Effect.succeed(result)
+    },
+  )
+}
+
 // The single acceptance list for callbacks: collections, sort, string replacers,
 // Array.from mappers, and promise reactions all admit exactly these callables.
 // Admission means dispatchable, not necessarily invocable: new-requiring
@@ -20,6 +20,7 @@ import {
  type Value,
 } from "./objects.js"
 import type { Interpreter } from "./interpreter.js"
+import { toPrimitiveString } from "./callback.js"
 import { formatValue } from "../stdlib/console.js"

 export const normalizeError = (error: unknown): Diagnostic => {
@@ -139,14 +140,13 @@ const constructAggregateErrorValue = <R>(
  proto: Obj,
 ): Effect.Effect<ErrorObj, unknown, R> =>
  Effect.gen(function* () {
+    const message = args[1] === undefined ? "" : yield* toPrimitiveString(ctx, args[1])
    const cursor = yield* ctx.iterate(args[0])
    if (cursor === undefined) throw typeError("new AggregateError(...) expects a synchronous iterable of errors.")
    const errors: Array<Value> = []
    while (true) {
      const step = yield* cursor.next
-      if (step.done) {
-        return createAggregateErrorValue(ctx, errors, args[1] === undefined ? "" : coerceToString(args[1]), proto)
-      }
+      if (step.done) return createAggregateErrorValue(ctx, errors, message, proto)
      errors.push(step.value)
    }
  })
@@ -160,7 +160,9 @@ export const errorGlobal = <R>(type: ErrorType, ctx: Interpreter<R>) => {
    const created =
      type === "AggregateError"
        ? constructAggregateErrorValue(ctx, args, proto)
-        : Effect.sync(() => createErrorValue(proto, args[0] === undefined ? undefined : coerceToString(args[0])))
+        : Effect.map(args[0] === undefined ? Effect.undefined : toPrimitiveString(ctx, args[0]), (message) =>
+            createErrorValue(proto, message),
+          )
    // ES2022 `new Error(message, { cause })`: installed only when the options object has the property at all.
    const options = args[type === "AggregateError" ? 2 : 1]
    if (!(options instanceof Obj) || !has(options, "cause")) return created
@@ -2,7 +2,7 @@ import { Effect } from "effect"
 import { Arr, Callable, coerceToInteger, coerceToString, get, Obj, type Value } from "./objects.js"
 import { arrayGlobal } from "../stdlib/array.js"
 import { textDecoderGlobal, textEncoderGlobal, uint8ArrayGlobal } from "../stdlib/bytes.js"
-import { mapGlobal, setGlobal } from "../stdlib/collections.js"
+import { mapGlobal, setGlobal, weakMapGlobal, weakSetGlobal } from "../stdlib/collections.js"
 import { consoleGlobal } from "../stdlib/console.js"
 import { dateGlobal } from "../stdlib/date.js"
 import { jsonGlobal } from "../stdlib/json.js"
@@ -111,6 +111,8 @@ const table: Record<string, Factory> = {
  RegExp: (ctx) => regexpGlobal(ctx),
  Map: (ctx) => mapGlobal(ctx),
  Set: (ctx) => setGlobal(ctx),
+  WeakMap: (ctx) => weakMapGlobal(ctx),
+  WeakSet: (ctx) => weakSetGlobal(ctx),
  URL: (ctx) => urlGlobal(ctx),
  URLSearchParams: (ctx) => urlSearchParamsGlobal(ctx),
  Headers: (ctx) => headersGlobal(ctx),
@@ -95,7 +95,7 @@ import {
  coerceToString,
  type Value,
 } from "./objects.js"
-import { preserveConsumerError } from "./callback.js"
+import { type Hint, preserveConsumerError, toPrimitive } from "./callback.js"
 import { Pending, resolvePromise, resolvePromiseValue } from "./promises.js"
 import { describeValue, isOpaque, rejectCircularInsertion, typeofValue } from "./references.js"
 import { ScopeStack } from "./scope.js"
@@ -103,6 +103,30 @@ import { constructRegExp } from "../stdlib/regexp.js"
 import { enumerableSource } from "../stdlib/object.js"
 import { compoundOperators } from "../stdlib/value.js"

+/** The binary operators that convert object operands through ToPrimitive before acting on primitives. */
+const primitiveOperators = new Set([
+  "+",
+  "-",
+  "*",
+  "/",
+  "%",
+  "**",
+  "<",
+  "<=",
+  ">",
+  ">=",
+  "&",
+  "|",
+  "^",
+  "<<",
+  ">>",
+  ">>>",
+])
+
+/** ToPropertyKey on a primitive (or an opaque value, which keeps its built-in string form). */
+const propertyKey = (value: Value): PropertyKey =>
+  typeof value === "string" || typeof value === "number" || typeof value === "symbol" ? value : coerceToString(value)
+
 // What a loop does with its body's result: exit with a StatementResult, or undefined to keep iterating.
 // Unlabelled break ends this loop; a label the loop does not carry propagates outward.
 const loopExit = (result: StatementResult, labels: ReadonlySet<string> | undefined): StatementResult | undefined => {
@@ -1116,18 +1140,15 @@ class Frame<R> {
      }

      if (pattern.type === "ObjectPattern") {
-        if (!(value instanceof Obj)) {
-          throw typeError(
-            `Object destructuring requires a data object or array value, received ${describeValue(value)}.`,
-            pattern,
-          )
+        if (value === null || value === undefined) {
+          throw typeError(`Cannot destructure ${describeValue(value)} as it is ${value}.`, pattern)
        }

        const consumed = new Set<PropertyKey>()
        for (const property of pattern.properties) {
          if (property.type === "RestElement") {
            const rest = new Obj(self.ctx.builtins.Object)
-            assign(rest, value, consumed)
+            assign(rest, enumerableSource(self.ctx, "Object destructuring", value, pattern), consumed)
            yield* self.declarePattern(property.argument, rest, mutable, property, initialize)
            continue
          }
@@ -1136,7 +1157,7 @@ class Frame<R> {
          consumed.add(typeof key === "symbol" ? key : String(key))
          yield* self.declarePattern(
            property.value,
-            self.readProperty(value, key, property),
+            self.destructuredProperty(value, key, property),
            mutable,
            property,
            initialize,
@@ -1175,24 +1196,21 @@ class Frame<R> {
      }

      if (pattern.type === "ObjectPattern") {
-        if (!(value instanceof Obj)) {
-          throw invalidData(
-            `Object destructuring requires a data object or array value, received ${describeValue(value)}.`,
-            pattern,
-          )
+        if (value === null || value === undefined) {
+          throw typeError(`Cannot destructure ${describeValue(value)} as it is ${value}.`, pattern)
        }

        const consumed = new Set<PropertyKey>()
        for (const property of pattern.properties) {
          if (property.type === "RestElement") {
            const rest = new Obj(self.ctx.builtins.Object)
-            assign(rest, value, consumed)
+            assign(rest, enumerableSource(self.ctx, "Object destructuring", value, pattern), consumed)
            yield* self.assignPattern(property.argument, rest, property)
            continue
          }
          const key = yield* self.destructuringPropertyKey(property)
          consumed.add(typeof key === "symbol" ? key : String(key))
-          yield* self.assignPattern(property.value, self.readProperty(value, key, property), property)
+          yield* self.assignPattern(property.value, self.destructuredProperty(value, key, property), property)
        }
        return
      }
@@ -1263,7 +1281,7 @@ class Frame<R> {
    }
    const keyNode = property.key
    if (property.computed) {
-      return Effect.map(this.evaluateExpression(keyNode), (value) => this.toPropertyKey(value))
+      return Effect.flatMap(this.evaluateExpression(keyNode), (value) => this.toPropertyKey(value, keyNode))
    }
    if (keyNode.type === "Identifier") return Effect.succeed(keyNode.name)
    if (keyNode.type === "Literal") return Effect.succeed(String(keyNode.value))
@@ -1368,85 +1386,105 @@ class Frame<R> {
      const lhs = yield* self.evaluateExpression(left)
      const rhs = yield* self.evaluateExpression(node.right)
      if (operator === "instanceof") return instanceofValue(lhs, rhs, node)
+      if (lhs instanceof Obj || rhs instanceof Obj) return yield* self.applyOperator(operator, lhs, rhs, node)
      return self.applyBinaryOperator(operator, lhs, rhs, node)
    })
  }

+  /** ToPrimitive for an operand: data objects run their own methods; opaque values stay for the data gates below. */
+  private toPrimitive(value: Value, hint: Hint, node: AstNode) {
+    return this.native(() => toPrimitive(this.ctx, value, hint), node)
+  }
+
+  // Arithmetic, relational, and bitwise operators convert both operands first, left then right, so a `valueOf`
+  // runs (and throws) in spec order; `+` asks for the default hint and the rest for a number.
+  private applyOperator(operator: string, lhs: Value, rhs: Value, node: AstNode): Effect.Effect<Value, unknown, R> {
+    if (!(lhs instanceof Obj || rhs instanceof Obj))
+      return Effect.succeed(this.applyBinaryOperator(operator, lhs, rhs, node))
+    // IsLooselyEqual converts only an object facing a non-nullish primitive; two objects (including tool
+    // references, which are not Obj) compare by identity.
+    const equality = operator === "==" || operator === "!="
+    // `in` checks the right operand before ToPropertyKey on the left, so a bad right side wins over a bad key.
+    if (operator === "in" && lhs instanceof Obj && !isOpaque(lhs) && rhs instanceof Obj) {
+      return Effect.map(this.toPropertyKey(lhs, node), (key) => has(rhs, key))
+    }
+    const other = lhs instanceof Obj ? rhs : lhs
+    const converts =
+      primitiveOperators.has(operator) ||
+      (equality && other !== null && other !== undefined && typeof other !== "object")
+    if (!converts) return Effect.succeed(this.applyBinaryOperator(operator, lhs, rhs, node))
+    const hint = operator === "+" || equality ? "default" : "number"
+    const self = this
+    return Effect.gen(function* () {
+      const l = yield* self.toPrimitive(lhs, hint, node)
+      const r = yield* self.toPrimitive(rhs, hint, node)
+      return self.applyBinaryOperator(operator, l, r, node)
+    })
+  }
+
  private applyBinaryOperator(operator: string, lhs: Value, rhs: Value, node: AstNode): Value {
    if (operator === "===") return lhs === rhs
    if (operator === "!==") return lhs !== rhs
    if (operator === "==") return this.looselyEqual(lhs, rhs, node)
    if (operator === "!=") return !this.looselyEqual(lhs, rhs, node)
-    if (operator === "in" && rhs instanceof Obj && !isOpaque(lhs)) {
-      return has(rhs, lhs !== null && typeof lhs === "object" ? coerceToString(lhs) : (lhs as PropertyKey))
-    }
+    if (operator === "in" && rhs instanceof Obj && !isOpaque(lhs)) return has(rhs, propertyKey(lhs))
    if (isOpaque(lhs) || isOpaque(rhs)) {
      throw invalidData("Binary operators require data values.", node)
    }
-    // Addition uses the default hint; every other operator asks for a number.
-    const hint = operator === "+" ? "default" : "number"
-    const coerceOperand = (operand: Value) => (operand instanceof Obj ? operand.toPrimitive(hint) : operand)
-    const l = coerceOperand(lhs)
-    const r = coerceOperand(rhs)
+    // Object operands were already converted by applyOperator; only primitives reach the arithmetic below.
    switch (operator) {
      case "+": {
-        const sum = (l as string) + (r as string)
+        const sum = (lhs as string) + (rhs as string)
        if (typeof sum === "string") checkStringLength(sum.length)
        return sum
      }
      case "-":
-        return (l as number) - (r as number)
+        return (lhs as number) - (rhs as number)
      case "*":
-        return (l as number) * (r as number)
+        return (lhs as number) * (rhs as number)
      case "/":
-        return (l as number) / (r as number)
+        return (lhs as number) / (rhs as number)
      case "%":
-        return (l as number) % (r as number)
+        return (lhs as number) % (rhs as number)
      case "**":
-        return (l as number) ** (r as number)
+        return (lhs as number) ** (rhs as number)
      case "<":
-        return (l as string) < (r as string)
+        return (lhs as string) < (rhs as string)
      case "<=":
-        return (l as string) <= (r as string)
+        return (lhs as string) <= (rhs as string)
      case ">":
-        return (l as string) > (r as string)
+        return (lhs as string) > (rhs as string)
      case ">=":
-        return (l as string) >= (r as string)
+        return (lhs as string) >= (rhs as string)
      case "&":
-        return (l as number) & (r as number)
+        return (lhs as number) & (rhs as number)
      case "|":
-        return (l as number) | (r as number)
+        return (lhs as number) | (rhs as number)
      case "^":
-        return (l as number) ^ (r as number)
+        return (lhs as number) ^ (rhs as number)
      case "<<":
-        return (l as number) << (r as number)
+        return (lhs as number) << (rhs as number)
      case ">>":
-        return (l as number) >> (r as number)
+        return (lhs as number) >> (rhs as number)
      case ">>>":
-        return (l as number) >>> (r as number)
+        return (lhs as number) >>> (rhs as number)
      case "in":
-        if (!(rhs instanceof Obj)) {
-          throw typeError("The 'in' operator requires a data object on the right-hand side.", node)
-        }
-        return has(rhs, coerceOperand(lhs) as PropertyKey)
+        throw typeError("The 'in' operator requires a data object on the right-hand side.", node)
      default:
        throw typeError(`Unsupported binary operator '${operator}'.`, node)
    }
  }

-  // IsLooselyEqual: objects (including functions and tool references) compare by identity, and only a
-  // data object facing a non-nullish primitive needs to coerce, so an opaque value is rejected only there.
+  // IsLooselyEqual: objects (including functions and tool references) compare by identity, and a nullish
+  // primitive never equals an object.
  private looselyEqual(lhs: Value, rhs: Value, node: AstNode): boolean {
    const lhsObject = lhs !== null && typeof lhs === "object"
    const rhsObject = rhs !== null && typeof rhs === "object"
    if (lhsObject === rhsObject) return lhsObject ? lhs === rhs : lhs == rhs
-    const object = lhsObject ? lhs : rhs
    const primitive = lhsObject ? rhs : lhs
    if (primitive === null || primitive === undefined) return false
-    if (!(object instanceof Obj) || isOpaque(object)) {
-      throw invalidData("Binary operators require data values.", node)
-    }
-    return object.toPrimitive("default") == primitive
+    // Data objects were converted by applyOperator, so only an opaque reference facing a primitive gets here.
+    throw invalidData("Binary operators require data values.", node)
  }

  private evaluateLogicalExpression(node: LogicalExpression): Effect.Effect<Value, unknown, R> {
@@ -1468,14 +1506,16 @@ class Frame<R> {
    if (operator === "typeof" && argument.type === "Identifier" && !this.scopes.resolve(argument.name)) {
      return Effect.succeed("undefined")
    }
-    return Effect.map(this.evaluateExpression(argument), (value) => {
+    const self = this
+    return Effect.gen(function* () {
+      const value = yield* self.evaluateExpression(argument)
      if (operator === "typeof") return typeofValue(value)
      if (operator === "!") return !value
      if (operator === "void") return undefined
-      if (isOpaque(value)) {
+      const operand = yield* self.toPrimitive(value, "number", node)
+      if (isOpaque(operand)) {
        throw invalidData("Unary operators require data values.", node)
      }
-      const operand = value instanceof Obj ? value.toPrimitive("number") : value
      let result: Value
      switch (operator) {
        case "+":
@@ -1497,11 +1537,16 @@ class Frame<R> {
  private evaluateAssignmentExpression(node: AssignmentExpression): Effect.Effect<Value, unknown, R> {
    const left = node.left
    const operator = node.operator
+    // The binary operator a compound assignment applies: `+=` is `+`.
+    const binary = operator.slice(0, -1)
    const self = this
    return Effect.gen(function* () {
      if (operator === "??=" || operator === "||=" || operator === "&&=") {
        return yield* self.evaluateLogicalAssignment(node, left, operator)
      }
+      if (operator !== "=" && !compoundOperators.has(operator)) {
+        throw typeError(`Unsupported assignment operator '${operator}'.`, node)
+      }
      if (operator === "=" && (left.type === "ObjectPattern" || left.type === "ArrayPattern")) {
        const rightValue = yield* self.evaluateExpression(node.right)
        yield* self.assignPattern(left, rightValue, node)
@@ -1512,17 +1557,24 @@ class Frame<R> {
        if (operator !== "=") {
          const current = self.scopes.get(name, left)
          const rightValue = yield* self.evaluateExpression(node.right)
-          return self.scopes.set(name, self.applyCompoundAssignment(operator, current, rightValue, node), left)
+          const next =
+            current instanceof Obj || rightValue instanceof Obj
+              ? yield* self.applyOperator(binary, current, rightValue, node)
+              : self.applyBinaryOperator(binary, current, rightValue, node)
+          return self.scopes.set(name, next, left)
        }
        const rightValue = yield* self.evaluateNamed(node.right, name)
        return self.scopes.set(name, rightValue, left)
      }
      if (left.type === "MemberExpression") {
        return yield* self.modifyMember(left, (current) =>
-          Effect.map(self.evaluateExpression(node.right), (rightValue) => {
-            if (operator === "=") return { write: true, next: rightValue, result: rightValue }
-            const next = self.applyCompoundAssignment(operator, current, rightValue, node)
-            return { write: true, next, result: next }
+          Effect.flatMap(self.evaluateExpression(node.right), (rightValue) => {
+            if (operator === "=") return Effect.succeed({ write: true, next: rightValue, result: rightValue })
+            return Effect.map(self.applyOperator(binary, current, rightValue, node), (next) => ({
+              write: true,
+              next,
+              result: next,
+            }))
          }),
        )
      }
@@ -1572,8 +1624,7 @@ class Frame<R> {
      throw typeError(`Unsupported update operator '${operator}'.`, node)
    }

-    // CodeMode numeric coercion, not host Number(): null-prototype data objects would make
-    // the host throw during ToPrimitive, and opaque runtime references must reject clearly.
+    // CodeMode numeric coercion, not host Number(), so opaque runtime references reject clearly.
    const operand = (current: Value): number => {
      if (isOpaque(current)) {
        throw invalidData(`'${operator}' requires a data value.`, argument)
@@ -1582,21 +1633,26 @@ class Frame<R> {
    }

    if (argument.type === "Identifier") {
-      return Effect.sync(() => {
-        const name = argument.name
-        const current = operand(this.scopes.get(name, argument))
-        const next = current + increment
+      const name = argument.name
+      const current = this.scopes.get(name, argument)
+      const update = (value: Value) => {
+        const before = operand(value)
+        const next = before + increment
        this.scopes.set(name, next, argument)
-        return prefix ? next : current
-      })
+        return prefix ? next : before
+      }
+      if (!(current instanceof Obj)) return Effect.sync(() => update(current))
+      return Effect.map(this.toPrimitive(current, "number", argument), update)
    }

    if (argument.type === "MemberExpression") {
-      return this.modifyMember(argument, (current) => {
-        const value = operand(current)
-        const next = value + increment
-        return Effect.succeed({ write: true, next, result: prefix ? next : value })
-      })
+      return this.modifyMember(argument, (current) =>
+        Effect.map(this.toPrimitive(current, "number", argument), (primitive) => {
+          const value = operand(primitive)
+          const next = value + increment
+          return { write: true, next, result: prefix ? next : value }
+        }),
+      )
    }

    throw typeError("Update target must be an Identifier or MemberExpression.", argument)
@@ -1996,11 +2052,11 @@ class Frame<R> {
        let key: PropertyKey

        if (property.computed) {
-          key = self.toPropertyKey(yield* self.evaluateExpression(keyNode))
+          key = yield* self.toPropertyKey(yield* self.evaluateExpression(keyNode), keyNode)
        } else if (keyNode.type === "Identifier") {
          key = keyNode.name
        } else if (keyNode.type === "Literal") {
-          key = self.toPropertyKey(literal(keyNode))
+          key = propertyKey(literal(keyNode))
        } else {
          throw typeError("Unsupported object property key shape.", keyNode)
        }
@@ -2065,7 +2121,7 @@ class Frame<R> {

        if (index < expressions.length) {
          const raw = yield* self.evaluateExpression(expressions[index])
-          output += coerceToString(raw)
+          output += coerceToString(yield* self.toPrimitive(raw, "string", expressions[index]))
          checkStringLength(output.length)
        }
      }
@@ -2115,13 +2171,6 @@ class Frame<R> {
    )
  }

-  private applyCompoundAssignment(operator: string, current: Value, incoming: Value, node: AstNode): Value {
-    if (!compoundOperators.has(operator)) {
-      throw typeError(`Unsupported assignment operator '${operator}'.`, node)
-    }
-    return this.applyBinaryOperator(operator.slice(0, -1), current, incoming, node)
-  }
-
  private getMemberReference(
    node: MemberExpression,
  ): Effect.Effect<MemberReference | ToolReference | { value: Value } | typeof OptionalShortCircuit, unknown, R> {
@@ -2135,37 +2184,58 @@ class Frame<R> {
      if (objectValue === OptionalShortCircuit) return OptionalShortCircuit
      if ((objectValue === null || objectValue === undefined) && node.optional) return OptionalShortCircuit

-      const key = node.computed
-        ? self.toPropertyKey(yield* self.evaluateExpression(propertyNode))
-        : propertyNode.type === "Identifier"
+      const keyValue =
+        !node.computed && propertyNode.type === "Identifier"
          ? propertyNode.name
-          : self.toPropertyKey(yield* self.evaluateExpression(propertyNode))
-
-      if (objectValue instanceof ToolReference) {
-        if (typeof key !== "string") {
-          throw typeError("Tool paths must use string property names.", propertyNode)
-        }
-        return new ToolReference([...objectValue.path, key])
-      }
-
-      if (objectValue instanceof Obj) return { target: objectValue, key, receiver: objectValue }
-
-      // Strings own length and indexes; every other primitive property reads through the wrapper prototype.
-      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] }
-      }
-      const proto = primitivePrototype(self.ctx.builtins, objectValue)
-      if (proto !== undefined) return { target: proto, key, receiver: objectValue }
-
+          : yield* self.evaluateExpression(propertyNode)
+      // GetValue applies ToObject to the base before ToPropertyKey, so a nullish base throws before the key's own
+      // toString runs.
      if (objectValue === null || objectValue === undefined) {
-        throw typeError(`Cannot read properties of ${objectValue} (reading '${String(key)}').`, objectNode)
+        throw typeError(`Cannot read properties of ${objectValue} (reading '${coerceToString(keyValue)}').`, objectNode)
      }
-      throw typeError("Cannot access a property on a non-object value.", objectNode)
+      const key = yield* self.toPropertyKey(keyValue, propertyNode)
+      return self.resolveProperty(objectValue, key, objectNode, propertyNode)
    })
  }

+  private resolveProperty(
+    objectValue: Value,
+    key: PropertyKey,
+    objectNode: AstNode,
+    propertyNode: AstNode,
+  ): MemberReference | ToolReference | { value: Value } {
+    if (objectValue instanceof ToolReference) {
+      if (typeof key !== "string") {
+        throw typeError("Tool paths must use string property names.", propertyNode)
+      }
+      return new ToolReference([...objectValue.path, key])
+    }
+
+    if (objectValue instanceof Obj) return { target: objectValue, key, receiver: objectValue }
+
+    // Strings own length and indexes; every other primitive property reads through the wrapper prototype.
+    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] }
+    }
+    const proto = primitivePrototype(this.ctx.builtins, objectValue)
+    if (proto !== undefined) return { target: proto, key, receiver: objectValue }
+
+    if (objectValue === null || objectValue === undefined) {
+      throw typeError(`Cannot read properties of ${objectValue} (reading '${String(key)}').`, objectNode)
+    }
+    throw typeError("Cannot access a property on a non-object value.", objectNode)
+  }
+
+  // One destructured property, read the way a member expression would read it (primitives use their prototype).
+  private destructuredProperty(source: Value, key: PropertyKey, node: AstNode): Value {
+    const reference = this.resolveProperty(source, key, node, node)
+    if (reference instanceof ToolReference) return reference
+    if ("value" in reference) return reference.value
+    return this.readProperty(reference.target, reference.key, node, reference.receiver)
+  }
+
  private readReference(reference: MemberReference, node: MemberExpression): Value {
    // Reject unknown promise properties so a missing await cannot hide.
    if (reference.target instanceof PromiseObj && !has(reference.target, reference.key)) {
@@ -2255,9 +2325,10 @@ class Frame<R> {
    throw typeError(`Cannot assign to read only property '${String(key)}'.`, node)
  }

-  // ToPropertyKey: anything else becomes its string form, so `counts[row.category]` works when the field is null.
-  private toPropertyKey(value: Value): PropertyKey {
-    if (typeof value === "string" || typeof value === "number" || typeof value === "symbol") return value
-    return coerceToString(value)
+  // ToPropertyKey: a data object converts through its own `toString`/`valueOf` first; anything else becomes its
+  // string form synchronously, so `counts[row.category]` works when the field is null.
+  private toPropertyKey(value: Value, node: AstNode): Effect.Effect<PropertyKey, unknown, R> {
+    if (!(value instanceof Obj)) return Effect.succeed(propertyKey(value))
+    return Effect.map(this.toPrimitive(value, "string", node), propertyKey)
  }
 }
@@ -27,6 +27,8 @@ const builtins = [
  "RegExp",
  "Map",
  "Set",
+  "WeakMap",
+  "WeakSet",
  "URL",
  "URLSearchParams",
  "Headers",
@@ -88,6 +90,8 @@ export const createBuiltins = (): Builtins => {
    RegExp: plain(),
    Map: plain(),
    Set: plain(),
+    WeakMap: plain(),
+    WeakSet: plain(),
    URL: plain(),
    URLSearchParams: plain(),
    Headers: plain(),
@@ -356,6 +356,23 @@ export class SetObj extends Wrapper {
  }
 }

+/** Keys are program objects, so a host WeakMap gives the same lifetime rule as JavaScript without any bookkeeping. */
+export class WeakMapObj extends Wrapper {
+  override readonly tag = "WeakMap"
+  readonly map = new WeakMap<Obj, Value>()
+  override inspect() {
+    return "WeakMap { <items unknown> }"
+  }
+}
+
+export class WeakSetObj extends Wrapper {
+  override readonly tag = "WeakSet"
+  readonly set = new WeakSet<Obj>()
+  override inspect() {
+    return "WeakSet { <items unknown> }"
+  }
+}
+
 export class URLSearchParamsObj extends Wrapper {
  override readonly tag = "URLSearchParams"
  constructor(
@@ -18,7 +18,7 @@ import {
  type Value,
 } from "../interpreter/objects.js"
 import { describeValue, rejectCircularInsertion } from "../interpreter/references.js"
-import { applyCollectionCallback, invoke, preserveConsumerError } from "../interpreter/callback.js"
+import { applyCollectionCallback, invoke, preserveConsumerError, withPrimitives } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
 import { compareText } from "../tool-runtime.js"

@@ -49,7 +49,7 @@ const arrayFrom = <R>(ctx: Interpreter<R>, args: Array<Value>): Effect.Effect<Va
      const values: Array<Value> = []
      for (let index = 0; index < arrayLike.length; index += 1) {
        const item = get(arrayLike.source, index)
-        values.push(apply === undefined ? item : yield* apply([item, index]))
+        values.push(apply === undefined ? item : yield* apply([item, index], args[2]))
      }
      return new Arr(proto, values)
    }
@@ -59,7 +59,9 @@ const arrayFrom = <R>(ctx: Interpreter<R>, args: Array<Value>): Effect.Effect<Va
      const step = yield* cursor.next
      if (step.done) return new Arr(proto, values)
      values.push(
-        apply === undefined ? step.value : yield* preserveConsumerError(cursor.close, apply([step.value, index])),
+        apply === undefined
+          ? step.value
+          : yield* preserveConsumerError(cursor.close, apply([step.value, index], args[2])),
      )
      index += 1
    }
@@ -146,20 +148,30 @@ export const arrayGlobal = <R>(ctx: Interpreter<R>) => {
      "join",
      1,
      (thisValue, args) => {
-        const joined = self(thisValue, "join")
-          .items.map((item) => coerceToString(item ?? ""))
-          .join(args[0] === undefined ? "," : coerceToString(args[0]))
-        checkStringLength(joined.length)
-        return joined
+        // .map would keep holes, which Effect.forEach would then hand to the body as undefined.
+        const parts = Array.from(self(thisValue, "join").items, (item) => item ?? "")
+        return withPrimitives(
+          ctx,
+          "string",
+          [args[0] === undefined ? "," : args[0], ...parts],
+          ([separator, ...items]) => {
+            const joined = items.map(coerceToString).join(coerceToString(separator))
+            checkStringLength(joined.length)
+            return joined
+          },
+        )
      },
    ],
    [
      "toString",
      0,
      (thisValue) =>
-        self(thisValue, "toString")
-          .items.map((item) => coerceToString(item ?? ""))
-          .join(","),
+        withPrimitives(
+          ctx,
+          "string",
+          Array.from(self(thisValue, "toString").items, (item) => item ?? ""),
+          (items) => items.map(coerceToString).join(","),
+        ),
    ],
    [
      "includes",
@@ -362,7 +374,7 @@ export const arrayGlobal = <R>(ctx: Interpreter<R>) => {
          const values: Array<Value> = []
          for (let index = 0; index < length; index += 1) {
            if (!(index in target.items)) continue
-            const mapped = yield* apply([target.items[index], index, target])
+            const mapped = yield* apply([target.items[index], index, target], args[1])
            if (mapped instanceof Arr) values.push(...mapped.items)
            else values.push(mapped)
          }
@@ -401,7 +413,10 @@ export const callbackMethods = <R, T extends Obj>(
    length,
    (thisValue, args) => {
      const target = self(thisValue, name)
-      return body(elements(target), target, applyCollectionCallback(ctx, args[0], `${label}.${name}`), args)
+      const call = applyCollectionCallback(ctx, args[0], `${label}.${name}`)
+      // reduce and reduceRight take an initial value where the others take a thisArg.
+      const thisArg = name.startsWith("reduce") ? undefined : args[1]
+      return body(elements(target), target, (callbackArgs) => call(callbackArgs, thisArg), args)
    },
  ]
  return [
@@ -16,6 +16,8 @@ import {
  PromiseObj,
  SetObj,
  type Value,
+  WeakMapObj,
+  WeakSetObj,
 } from "../interpreter/objects.js"
 import { describeValue, isOpaque } from "../interpreter/references.js"
 import {
@@ -188,7 +190,7 @@ export const mapGlobal = <R>(ctx: Interpreter<R>) => {
        const target = self(thisValue, "forEach")
        const apply = applyCollectionCallback(ctx, args[0], "Map.forEach")
        return Effect.gen(function* () {
-          for (const [key, item] of target.map.entries()) yield* apply([item, key, target])
+          for (const [key, item] of target.map.entries()) yield* apply([item, key, target], args[1])
          return undefined
        })
      },
@@ -386,7 +388,7 @@ export const setGlobal = <R>(ctx: Interpreter<R>) => {
        const target = self(thisValue, "forEach")
        const apply = applyCollectionCallback(ctx, args[0], "Set.forEach")
        return Effect.gen(function* () {
-          for (const item of target.set.values()) yield* apply([item, item, target])
+          for (const item of target.set.values()) yield* apply([item, item, target], args[1])
          return undefined
        })
      },
@@ -402,3 +404,134 @@ export const setGlobal = <R>(ctx: Interpreter<R>) => {
  define(proto, IteratorSymbol, get(proto, "values"), hidden)
  return set
 }
+
+// CanBeHeldWeakly: only program objects; tool references are rebuilt on every access, so they could never be found again.
+const weakKey = (value: Value, label: string) => {
+  if (value instanceof Obj) return value
+  throw typeError(`Invalid value used ${label}: ${describeValue(value)} cannot be held weakly.`)
+}
+
+export const weakMapGlobal = <R>(ctx: Interpreter<R>) => {
+  const builtins = ctx.builtins
+  const proto = builtins.WeakMap
+  const weakMap = constructor<R>(builtins, proto, {
+    name: "WeakMap",
+    call: requiresNew("WeakMap"),
+    construct: (args, newTarget) => {
+      const target = new WeakMapObj(prototypeFrom(newTarget, proto))
+      if (args[0] === undefined || args[0] === null) return Effect.succeed(target)
+      return Effect.gen(function* () {
+        const cursor = yield* ctx.iterate(args[0]!)
+        if (cursor === undefined) {
+          throw typeError(
+            `new WeakMap(...) expects an iterable of [key, value] pairs, received ${describeValue(args[0])}.`,
+          )
+        }
+        while (true) {
+          const step = yield* cursor.next
+          if (step.done) return target
+          yield* preserveConsumerError(
+            cursor.close,
+            Effect.sync(() => {
+              if (!(step.value instanceof Obj)) {
+                throw typeError("new WeakMap(...) expects [key, value] pairs as entry objects.")
+              }
+              target.map.set(weakKey(getOwn(step.value, 0), "as weak map key"), getOwn(step.value, 1))
+            }),
+          )
+        }
+      })
+    },
+  })
+  const self = (thisValue: Value, name: string) => receiver(WeakMapObj, thisValue, `WeakMap.prototype.${name}`).map
+  // Lookups pass any key through: the host collection answers false for a non-object, as the spec requires.
+  const key = (value: Value) => weakKey(value, "as weak map key")
+  methods(builtins, proto, [
+    [
+      "get",
+      1,
+      (thisValue, args) => {
+        const target = self(thisValue, "get")
+        return args[0] instanceof Obj ? target.get(args[0]) : undefined
+      },
+    ],
+    ["has", 1, (thisValue, args) => self(thisValue, "has").has(args[0] as Obj)],
+    ["delete", 1, (thisValue, args) => self(thisValue, "delete").delete(args[0] as Obj)],
+    [
+      "set",
+      2,
+      (thisValue, args) => {
+        self(thisValue, "set").set(key(args[0]), args[1])
+        return thisValue
+      },
+    ],
+    [
+      "getOrInsert",
+      2,
+      (thisValue, args) => {
+        const target = self(thisValue, "getOrInsert")
+        const k = key(args[0])
+        if (!target.has(k)) target.set(k, args[1])
+        return target.get(k)
+      },
+    ],
+    [
+      "getOrInsertComputed",
+      2,
+      (thisValue, args) => {
+        const target = self(thisValue, "getOrInsertComputed")
+        const k = key(args[0])
+        const apply = applyCollectionCallback(ctx, args[1], "WeakMap.getOrInsertComputed")
+        if (target.has(k)) return target.get(k)
+        return Effect.map(apply([k]), (value) => {
+          target.set(k, value)
+          return value
+        })
+      },
+    ],
+  ])
+  return weakMap
+}
+
+export const weakSetGlobal = <R>(ctx: Interpreter<R>) => {
+  const builtins = ctx.builtins
+  const proto = builtins.WeakSet
+  const weakSet = constructor<R>(builtins, proto, {
+    name: "WeakSet",
+    call: requiresNew("WeakSet"),
+    construct: (args, newTarget) => {
+      const target = new WeakSetObj(prototypeFrom(newTarget, proto))
+      if (args[0] === undefined || args[0] === null) return Effect.succeed(target)
+      return Effect.gen(function* () {
+        const cursor = yield* ctx.iterate(args[0]!)
+        if (cursor === undefined) {
+          throw typeError(`new WeakSet(...) expects a synchronous iterable, received ${describeValue(args[0])}.`)
+        }
+        while (true) {
+          const step = yield* cursor.next
+          if (step.done) return target
+          yield* preserveConsumerError(
+            cursor.close,
+            Effect.sync(() => {
+              target.set.add(weakKey(step.value, "in weak set"))
+            }),
+          )
+        }
+      })
+    },
+  })
+  const self = (thisValue: Value, name: string) => receiver(WeakSetObj, thisValue, `WeakSet.prototype.${name}`).set
+  methods(builtins, proto, [
+    ["has", 1, (thisValue, args) => self(thisValue, "has").has(args[0] as Obj)],
+    ["delete", 1, (thisValue, args) => self(thisValue, "delete").delete(args[0] as Obj)],
+    [
+      "add",
+      1,
+      (thisValue, args) => {
+        self(thisValue, "add").add(weakKey(args[0], "in weak set"))
+        return thisValue
+      },
+    ],
+  ])
+  return weakSet
+}
@@ -16,8 +16,11 @@ const constructDate = <R>(ctx: Interpreter<R>, args: Array<Value>, proto: Obj) =
        : new DateObj(proto, new Date(coerceToNumber(value)).getTime()),
    )
  }
-  const parts = args.map((arg) => coerceToNumber(arg))
-  return Effect.succeed(new DateObj(proto, new Date(...(parts as [number, number])).getTime()))
+  // The spec converts at most seven components, in order, so extra arguments never run program code.
+  return Effect.map(
+    Effect.forEach(args.slice(0, 7), (arg) => toPrimitiveNumber(ctx, arg), { concurrency: 1 }),
+    (parts) => new DateObj(proto, new Date(...(parts as [number, number])).getTime()),
+  )
 }

 type Getter = keyof {
@@ -79,7 +82,15 @@ export const dateGlobal = <R>(ctx: Interpreter<R>) => {
  methods(builtins, date, [
    ["now", 0, () => Date.now()],
    ["parse", 1, (_, args) => Date.parse(coerceToString(args[0]))],
-    ["UTC", 7, (_, args) => Date.UTC(...(args.map((arg) => coerceToNumber(arg)) as Parameters<typeof Date.UTC>))],
+    [
+      "UTC",
+      7,
+      (_, args) =>
+        Effect.map(
+          Effect.forEach(args.slice(0, 7), (arg) => toPrimitiveNumber(ctx, arg), { concurrency: 1 }),
+          (parts) => Date.UTC(...(parts as Parameters<typeof Date.UTC>)),
+        ),
+    ],
  ])

  const self = (thisValue: Value, name: string) => receiver(DateObj, thisValue, `Date.prototype.${name}`)
@@ -125,6 +136,8 @@ export const dateGlobal = <R>(ctx: Interpreter<R>) => {
              concurrency: 1,
            }),
            (values) => {
+              // Every setter but setTime and setFullYear leaves an invalid Date untouched and answers NaN.
+              if (Number.isNaN(hosted.getTime()) && name !== "setTime" && !name.endsWith("FullYear")) return NaN
              target.time = hosted[name](...(values as [number, number, number, number]))
              return target.time
            },
@@ -117,7 +117,7 @@ export const headersGlobal = <R>(ctx: Interpreter<R>) => {
        const target = self(thisValue, "forEach")
        const apply = applyCollectionCallback(ctx, args[0], "Headers.forEach")
        return Effect.gen(function* () {
-          for (const [key, value] of Array.from(target.headers.entries())) yield* apply([value, key, target])
+          for (const [key, value] of Array.from(target.headers.entries())) yield* apply([value, key, target], args[1])
          return undefined
        })
      },
@@ -2,7 +2,7 @@ import { Effect } from "effect"
 import { constants, type Method, methods } from "../interpreter/native.js"
 import { typeError } from "../interpreter/model.js"
 import { Obj, coerceToNumber } from "../interpreter/objects.js"
-import { preserveConsumerError } from "../interpreter/callback.js"
+import { preserveConsumerError, withPrimitives } from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"

 // Bun exposes ES2026 Math.sumPrecise before TypeScript's standard library types.
@@ -12,25 +12,27 @@ declare global {
  }
 }

-// Validate only the arguments a method consumes; like JS, extras are ignored
-// (so built-ins work as callbacks receiving (element, index, array)).
-const unary = (name: string, op: (a: number) => number): Method => [name, 1, (_, args) => op(coerceToNumber(args[0]))]
-
-const binary = (name: string, op: (a: number, b: number) => number): Method => [
-  name,
-  2,
-  (_, args) => op(coerceToNumber(args[0]), coerceToNumber(args[1])),
-]
-
-const variadic = (name: string, op: (...values: Array<number>) => number): Method => [
-  name,
-  2,
-  (_, args) => op(...args.map(coerceToNumber)),
-]
-
 export const mathGlobal = <R>(ctx: Interpreter<R>) => {
  const builtins = ctx.builtins
  const math = new Obj(builtins.Object)
+  // Convert only the arguments a method consumes; like JS, extras are ignored
+  // (so built-ins work as callbacks receiving (element, index, array)).
+  const unary = (name: string, op: (a: number) => number): Method => [
+    name,
+    1,
+    (_, args) => withPrimitives(ctx, "number", [args[0]], ([a]) => op(coerceToNumber(a))),
+  ]
+  const binary = (name: string, op: (a: number, b: number) => number): Method => [
+    name,
+    2,
+    (_, args) =>
+      withPrimitives(ctx, "number", [args[0], args[1]], ([a, b]) => op(coerceToNumber(a), coerceToNumber(b))),
+  ]
+  const variadic = (name: string, op: (...values: Array<number>) => number): Method => [
+    name,
+    2,
+    (_, args) => withPrimitives(ctx, "number", args, (values) => op(...values.map(coerceToNumber))),
+  ]
  constants(math, {
    PI: Math.PI,
    E: Math.E,
@@ -1,8 +1,9 @@
-import { constructor, constants, methods } from "../interpreter/native.js"
-import { coerceToNumber, coerceToString, type Value } from "../interpreter/objects.js"
+import { constructor, constants, type Method, methods } from "../interpreter/native.js"
+import { coerceToNumber, type Value } from "../interpreter/objects.js"
 import { rangeError, typeError } from "../interpreter/model.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
-import { coercion } from "./value.js"
+import { withPrimitives } from "../interpreter/callback.js"
+import { coerce, coercion } from "./value.js"

 export const numberGlobal = <R>(ctx: Interpreter<R>) => {
  const builtins = ctx.builtins
@@ -26,46 +27,36 @@ export const numberGlobal = <R>(ctx: Interpreter<R>) => {
    ["isFinite", 1, (_, args) => Number.isFinite(args[0])],
    ["isNaN", 1, (_, args) => Number.isNaN(args[0])],
    ["isSafeInteger", 1, (_, args) => Number.isSafeInteger(args[0])],
-    [
-      "parseInt",
-      2,
-      (_, args) => {
-        return parseInt(coerceToString(args[0]), coerceToNumber(args[1]))
-      },
-    ],
-    ["parseFloat", 1, (_, args) => parseFloat(coerceToString(args[0]))],
+    ["parseInt", 2, (_, args) => coerce(ctx, "parseInt", args)],
+    ["parseFloat", 1, (_, args) => coerce(ctx, "parseFloat", args)],
  ])

  const self = (thisValue: Value, name: string): number => {
    if (typeof thisValue === "number") return thisValue
    throw typeError(`Number.prototype.${name} requires that 'this' be a Number.`)
  }
-  const optNum = (arg: Value): number | undefined => (arg === undefined ? undefined : coerceToNumber(arg))
+  // The receiver is checked first, then the one argument converts through ToPrimitive with the number hint.
+  const formatting = (name: string, op: (value: number, digits: number | undefined) => string): Method => [
+    name,
+    1,
+    (thisValue, args) => {
+      const value = self(thisValue, name)
+      return withPrimitives(ctx, "number", [args[0]], ([digits]) =>
+        op(value, digits === undefined ? undefined : coerceToNumber(digits)),
+      )
+    },
+  ]
  methods(builtins, builtins.Number, [
-    ["toFixed", 1, (thisValue, args) => self(thisValue, "toFixed").toFixed(optNum(args[0]))],
+    formatting("toFixed", (value, digits) => value.toFixed(digits)),
    ["toLocaleString", 0, (thisValue) => self(thisValue, "toLocaleString").toLocaleString("en-US")],
-    ["toExponential", 1, (thisValue, args) => self(thisValue, "toExponential").toExponential(optNum(args[0]))],
-    [
-      "toPrecision",
-      1,
-      (thisValue, args) => {
-        const value = self(thisValue, "toPrecision")
-        const digits = optNum(args[0])
-        return digits === undefined ? value.toString() : value.toPrecision(digits)
-      },
-    ],
-    [
-      "toString",
-      1,
-      (thisValue, args) => {
-        const value = self(thisValue, "toString")
-        const radix = optNum(args[0])
-        if (radix !== undefined && (radix < 2 || radix > 36)) {
-          throw rangeError("Number.toString radix must be between 2 and 36.")
-        }
-        return value.toString(radix)
-      },
-    ],
+    formatting("toExponential", (value, digits) => value.toExponential(digits)),
+    formatting("toPrecision", (value, digits) => (digits === undefined ? value.toString() : value.toPrecision(digits))),
+    formatting("toString", (value, radix) => {
+      if (radix !== undefined && (radix < 2 || radix > 36)) {
+        throw rangeError("Number.toString radix must be between 2 and 36.")
+      }
+      return value.toString(radix)
+    }),
    ["valueOf", 0, (thisValue) => self(thisValue, "valueOf")],
  ])
  return number
@@ -17,7 +17,13 @@ import {
  type Value,
 } from "../interpreter/objects.js"
 import { containsOpaqueReference, typeofValue } from "../interpreter/references.js"
-import { applyCollectionCallback, isSupportedCallback, toPrimitiveString } from "../interpreter/callback.js"
+import {
+  applyCollectionCallback,
+  type Hint,
+  isSupportedCallback,
+  toPrimitiveString,
+  withPrimitives,
+} from "../interpreter/callback.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
 import { matchToValue, toHostRegex } from "./regexp.js"
 import { coercion } from "./value.js"
@@ -142,34 +148,72 @@ export const stringGlobal = <R>(ctx: Interpreter<R>) => {
    args[index] === undefined ? undefined : num(name, args, index)
  const optStr = (name: string, args: Array<Value>, index: number): string | undefined =>
    args[index] === undefined ? undefined : str(name, args, index)
-  const rejectRegex = (name: string, args: Array<Value>): void => {
-    if (args[0] instanceof RegExpObj) {
-      throw typeError(
-        `String.${name} cannot take a regular expression; use regex.test(string) or String.search instead.`,
-      )
-    }
-  }
+  // ToPrimitive in spec order: the receiver, then the arguments the method consumes, one hint per position; the
+  // rest pass through as they are.
  const simple = (
    name: string,
    length: number,
    op: (value: string, args: Array<Value>) => ReturnType<Impl>,
-  ): Method => [name, length, (thisValue, args) => op(self(thisValue, name), args)]
-  const replace = (name: "replace" | "replaceAll") =>
-    simple(name, 2, (value, args) => {
-      if (isSupportedCallback(args[1])) return replaceWithCallback(ctx, value, name, args)
-      if (typeofValue(args[1]) === "function") {
+    hints: ReadonlyArray<Hint> = [],
+  ): Method => [
+    name,
+    length,
+    (thisValue, args) => {
+      if (thisValue === null || thisValue === undefined) {
+        throw typeError(`String.prototype.${name} called on null or undefined.`)
+      }
+      return withPrimitives(
+        ctx,
+        ["string", ...hints],
+        [thisValue, ...args.slice(0, hints.length)],
+        ([value, ...primitives]) => op(coerceToString(value), [...primitives, ...args.slice(hints.length)]),
+      )
+    },
+  ]
+  // includes, startsWith, and endsWith reject a RegExp before converting their search string and position.
+  const searching = (name: string, op: (value: string, search: string, position: number | undefined) => boolean) =>
+    simple(name, 1, (value, args) => {
+      if (args[0] instanceof RegExpObj) {
        throw typeError(
-          `String.${name} cannot use this callable as a replacer; wrap it in an arrow function, e.g. (match) => tools.ns.tool(match).`,
+          `String.${name} cannot take a regular expression; use regex.test(string) or String.search instead.`,
        )
      }
-      if (args[0] instanceof RegExpObj) {
-        const pattern = args[0].regex
-        const replacement = str(name, args, 1)
-        if (name === "replaceAll") replaceAllNeedsGlobal(pattern)
-        return name === "replace" ? value.replace(pattern, replacement) : value.replaceAll(pattern, replacement)
-      }
-      if (name === "replace") return value.replace(str(name, args, 0), str(name, args, 1))
-      return value.replaceAll(str(name, args, 0), str(name, args, 1))
+      return withPrimitives(ctx, ["string", "number"], args.slice(0, 2), (primitives) =>
+        op(value, str(name, primitives, 0), optNum(name, primitives, 1)),
+      )
+    })
+  // match, matchAll, and search read a RegExp as is and convert anything else to its pattern text.
+  const withPattern = (args: Array<Value>, op: (pattern: Value) => Value) =>
+    args[0] instanceof RegExpObj ? op(args[0]) : withPrimitives(ctx, "string", [args[0]], ([text]) => op(text))
+  const replace = (name: "replace" | "replaceAll") =>
+    simple(name, 2, (value, args) => {
+      const pattern = args[0]
+      const replacer = args[1]
+      // A RegExp pattern is used as is; a plain one converts to its search string, then a non-callable replacement.
+      return withPrimitives(
+        ctx,
+        "string",
+        [pattern instanceof RegExpObj ? undefined : pattern, isSupportedCallback(replacer) ? undefined : replacer],
+        ([search, replacement]) => {
+          if (isSupportedCallback(replacer)) {
+            return replaceWithCallback(ctx, value, name, [pattern instanceof RegExpObj ? pattern : search, replacer])
+          }
+          if (typeofValue(replacer) === "function") {
+            throw typeError(
+              `String.${name} cannot use this callable as a replacer; wrap it in an arrow function, e.g. (match) => tools.ns.tool(match).`,
+            )
+          }
+          const primitives = [search, replacement]
+          if (pattern instanceof RegExpObj) {
+            const regex = pattern.regex
+            const text = str(name, primitives, 1)
+            if (name === "replaceAll") replaceAllNeedsGlobal(regex)
+            return name === "replace" ? value.replace(regex, text) : value.replaceAll(regex, text)
+          }
+          if (name === "replace") return value.replace(str(name, primitives, 0), str(name, primitives, 1))
+          return value.replaceAll(str(name, primitives, 0), str(name, primitives, 1))
+        },
+      )
    })

  methods(builtins, builtins.String, [
@@ -185,107 +229,148 @@ export const stringGlobal = <R>(ctx: Interpreter<R>) => {
    simple("trimEnd", 0, (value) => value.trimEnd()),
    simple("trimRight", 0, (value) => value.trimEnd()),
    // Locale/options are deliberately unsupported; comparison uses the host default locale.
-    simple("localeCompare", 1, (value, args) => value.localeCompare(str("localeCompare", args, 0))),
-    simple("normalize", 0, (value, args) => {
-      const form = optStr("normalize", args, 0)
-      try {
-        return value.normalize(form)
-      } catch {
-        throw rangeError(
-          `String.normalize expects the form "NFC", "NFD", "NFKC", or "NFKD" (got ${JSON.stringify(form)}).`,
-        )
-      }
-    }),
+    simple("localeCompare", 1, (value, args) => value.localeCompare(str("localeCompare", args, 0)), ["string"]),
+    simple(
+      "normalize",
+      0,
+      (value, args) => {
+        const form = optStr("normalize", args, 0)
+        try {
+          return value.normalize(form)
+        } catch {
+          throw rangeError(
+            `String.normalize expects the form "NFC", "NFD", "NFKC", or "NFKD" (got ${JSON.stringify(form)}).`,
+          )
+        }
+      },
+      ["string"],
+    ),
    simple("split", 2, (value, args) => {
-      const wrap = (parts: Array<string>) => new Arr(builtins.Array, parts)
-      // Native: an undefined separator returns the whole string, not a split on "undefined",
-      // unless the limit truncates to zero.
-      const requestedLimit = optNum("split", args, 1)
-      if (args[0] === undefined) {
-        return wrap(requestedLimit !== undefined && requestedLimit >>> 0 === 0 ? [] : [value])
-      }
-      const parts =
-        args[0] instanceof RegExpObj
-          ? value.split(args[0].regex, requestedLimit)
-          : value.split(str("split", args, 0), requestedLimit === undefined ? undefined : requestedLimit >>> 0)
-      checkArrayLength(parts.length)
-      return wrap(parts)
+      const separator = args[0]
+      // A RegExp separator is used as is; the limit converts before a plain separator does, as in the spec.
+      return withPrimitives(
+        ctx,
+        ["number", "string"],
+        [args[1], separator instanceof RegExpObj ? undefined : separator],
+        ([limit, pattern]) => {
+          const wrap = (parts: Array<string>) => new Arr(builtins.Array, parts)
+          // Native: an undefined separator returns the whole string, not a split on "undefined",
+          // unless the limit truncates to zero.
+          const requestedLimit = args[1] === undefined ? undefined : num("split", [pattern, limit], 1)
+          if (separator === undefined) {
+            return wrap(requestedLimit !== undefined && requestedLimit >>> 0 === 0 ? [] : [value])
+          }
+          const parts =
+            separator instanceof RegExpObj
+              ? value.split(separator.regex, requestedLimit)
+              : value.split(str("split", [pattern], 0), requestedLimit === undefined ? undefined : requestedLimit >>> 0)
+          checkArrayLength(parts.length)
+          return wrap(parts)
+        },
+      )
    }),
-    simple("slice", 2, (value, args) => value.slice(optNum("slice", args, 0), optNum("slice", args, 1))),
-    simple("includes", 1, (value, args) => {
-      rejectRegex("includes", args)
-      return value.includes(str("includes", args, 0), optNum("includes", args, 1))
-    }),
-    simple("startsWith", 1, (value, args) => {
-      rejectRegex("startsWith", args)
-      return value.startsWith(str("startsWith", args, 0), optNum("startsWith", args, 1))
-    }),
-    simple("endsWith", 1, (value, args) => {
-      rejectRegex("endsWith", args)
-      return value.endsWith(str("endsWith", args, 0), optNum("endsWith", args, 1))
-    }),
-    simple("indexOf", 1, (value, args) => value.indexOf(str("indexOf", args, 0), optNum("indexOf", args, 1))),
-    simple("lastIndexOf", 1, (value, args) =>
-      value.lastIndexOf(str("lastIndexOf", args, 0), optNum("lastIndexOf", args, 1)),
+    simple("slice", 2, (value, args) => value.slice(optNum("slice", args, 0), optNum("slice", args, 1)), [
+      "number",
+      "number",
+    ]),
+    searching("includes", (value, search, position) => value.includes(search, position)),
+    searching("startsWith", (value, search, position) => value.startsWith(search, position)),
+    searching("endsWith", (value, search, position) => value.endsWith(search, position)),
+    simple("indexOf", 1, (value, args) => value.indexOf(str("indexOf", args, 0), optNum("indexOf", args, 1)), [
+      "string",
+      "number",
+    ]),
+    simple(
+      "lastIndexOf",
+      1,
+      (value, args) => value.lastIndexOf(str("lastIndexOf", args, 0), optNum("lastIndexOf", args, 1)),
+      ["string", "number"],
    ),
    replace("replace"),
    replace("replaceAll"),
-    simple("match", 1, (value, args) => {
-      const pattern = toHostRegex(args[0], "match")
-      const matched = value.match(pattern)
-      if (matched === null) return null
-      // Preserve the own `index` and `groups` properties on non-global matches.
-      if (pattern.global) return new Arr(builtins.Array, [...matched])
-      return matchToValue(builtins, matched)
-    }),
-    simple("matchAll", 1, (value, args) => {
-      const pattern = toHostRegex(args[0], "matchAll", "g")
-      if (!pattern.global) {
-        throw typeError(
-          `String.matchAll requires a regular expression with the global (g) flag: write /${pattern.source}/${pattern.flags}g, or use String.match for a single match.`,
-        )
-      }
-      const matches: Array<Value> = []
-      for (const match of value.matchAll(pattern)) {
-        checkArrayLength(matches.length + 1)
-        matches.push(matchToValue(builtins, match))
-      }
-      return new Arr(builtins.Array, matches)
-    }),
-    simple("search", 1, (value, args) => value.search(toHostRegex(args[0], "search"))),
-    simple("repeat", 1, (value, args) => {
-      const count = num("repeat", args, 0)
-      if (!Number.isFinite(count) || count < 0) {
-        throw rangeError("String.repeat expects a finite non-negative count.")
-      }
-      checkStringLength(value.length * count)
-      return value.repeat(count)
-    }),
-    simple("padStart", 1, (value, args) => {
-      const length = num("padStart", args, 0)
-      checkStringLength(length)
-      return value.padStart(length, optStr("padStart", args, 1))
-    }),
-    simple("padEnd", 1, (value, args) => {
-      const length = num("padEnd", args, 0)
-      checkStringLength(length)
-      return value.padEnd(length, optStr("padEnd", args, 1))
-    }),
-    simple("charAt", 1, (value, args) => value.charAt(optNum("charAt", args, 0) ?? 0)),
-    simple("at", 1, (value, args) => value.at(optNum("at", args, 0) ?? 0)),
-    simple("substring", 2, (value, args) =>
-      value.substring(optNum("substring", args, 0) ?? 0, optNum("substring", args, 1)),
+    simple("match", 1, (value, args) =>
+      withPattern(args, (arg) => {
+        const regex = toHostRegex(arg, "match")
+        const matched = value.match(regex)
+        if (matched === null) return null
+        // Preserve the own `index` and `groups` properties on non-global matches.
+        if (regex.global) return new Arr(builtins.Array, [...matched])
+        return matchToValue(builtins, matched)
+      }),
    ),
-    simple("substr", 2, (value, args) => value.substr(optNum("substr", args, 0) ?? 0, optNum("substr", args, 1))),
+    simple("matchAll", 1, (value, args) =>
+      withPattern(args, (arg) => {
+        const regex = toHostRegex(arg, "matchAll", "g")
+        if (!regex.global) {
+          throw typeError(
+            `String.matchAll requires a regular expression with the global (g) flag: write /${regex.source}/${regex.flags}g, or use String.match for a single match.`,
+          )
+        }
+        const matches: Array<Value> = []
+        for (const match of value.matchAll(regex)) {
+          checkArrayLength(matches.length + 1)
+          matches.push(matchToValue(builtins, match))
+        }
+        return new Arr(builtins.Array, matches)
+      }),
+    ),
+    simple("search", 1, (value, args) => withPattern(args, (arg) => value.search(toHostRegex(arg, "search")))),
+    simple(
+      "repeat",
+      1,
+      (value, args) => {
+        const count = num("repeat", args, 0)
+        if (!Number.isFinite(count) || count < 0) {
+          throw rangeError("String.repeat expects a finite non-negative count.")
+        }
+        checkStringLength(value.length * count)
+        return value.repeat(count)
+      },
+      ["number"],
+    ),
+    simple(
+      "padStart",
+      1,
+      (value, args) => {
+        const length = num("padStart", args, 0)
+        checkStringLength(length)
+        return value.padStart(length, optStr("padStart", args, 1))
+      },
+      ["number", "string"],
+    ),
+    simple(
+      "padEnd",
+      1,
+      (value, args) => {
+        const length = num("padEnd", args, 0)
+        checkStringLength(length)
+        return value.padEnd(length, optStr("padEnd", args, 1))
+      },
+      ["number", "string"],
+    ),
+    simple("charAt", 1, (value, args) => value.charAt(optNum("charAt", args, 0) ?? 0), ["number"]),
+    simple("at", 1, (value, args) => value.at(optNum("at", args, 0) ?? 0), ["number"]),
+    simple(
+      "substring",
+      2,
+      (value, args) => value.substring(optNum("substring", args, 0) ?? 0, optNum("substring", args, 1)),
+      ["number", "number"],
+    ),
+    simple("substr", 2, (value, args) => value.substr(optNum("substr", args, 0) ?? 0, optNum("substr", args, 1)), [
+      "number",
+      "number",
+    ]),
    simple("isWellFormed", 0, (value) => value.isWellFormed()),
    simple("toWellFormed", 0, (value) => value.toWellFormed()),
-    simple("charCodeAt", 1, (value, args) => value.charCodeAt(optNum("charCodeAt", args, 0) ?? 0)),
-    simple("codePointAt", 1, (value, args) => value.codePointAt(optNum("codePointAt", args, 0) ?? 0)),
-    simple("concat", 1, (value, args) => {
-      const joined = value.concat(...args.map((_, index) => str("concat", args, index)))
-      checkStringLength(joined.length)
-      return joined
-    }),
+    simple("charCodeAt", 1, (value, args) => value.charCodeAt(optNum("charCodeAt", args, 0) ?? 0), ["number"]),
+    simple("codePointAt", 1, (value, args) => value.codePointAt(optNum("codePointAt", args, 0) ?? 0), ["number"]),
+    simple("concat", 1, (value, args) =>
+      withPrimitives(ctx, "string", args, (parts) => {
+        const joined = value.concat(...parts.map((_, index) => str("concat", parts, index)))
+        checkStringLength(joined.length)
+        return joined
+      }),
+    ),
  ])
  define(
    builtins.String,
@@ -281,7 +281,7 @@ export const urlSearchParamsGlobal = <R>(ctx: Interpreter<R>) => {
        const target = self(thisValue, "forEach")
        const apply = applyCollectionCallback(ctx, args[0], "URLSearchParams.forEach")
        return Effect.gen(function* () {
-          for (const [key, value] of Array.from(target.params.entries())) yield* apply([value, key, target])
+          for (const [key, value] of Array.from(target.params.entries())) yield* apply([value, key, target], args[1])
          return undefined
        })
      },
@@ -1,12 +1,13 @@
 import { fn } from "../interpreter/native.js"
 import { coerceToNumber, coerceToString, type Native, type Value } from "../interpreter/objects.js"
 import type { Interpreter } from "../interpreter/interpreter.js"
+import { withPrimitives } from "../interpreter/callback.js"

 export const compoundOperators = new Set(["+=", "-=", "*=", "/=", "%=", "**=", "&=", "|=", "^=", "<<=", ">>=", ">>>="])

 export type Coercion = "Number" | "String" | "Boolean" | "parseInt" | "parseFloat" | "isFinite" | "isNaN"

-const coerce = <R>(ctx: Interpreter<R>, name: Coercion, args: Array<Value>): Value => {
+export const coerce = <R>(ctx: Interpreter<R>, name: Coercion, args: Array<Value>) => {
  // Native: Number() is 0 and String() is "", unlike their undefined-argument forms; the
  // other coercers match native through the undefined-argument path below.
  if (args.length === 0) {
@@ -14,15 +15,19 @@ const coerce = <R>(ctx: Interpreter<R>, name: Coercion, args: Array<Value>): Val
    if (name === "String") return ""
  }
  const raw = args[0]
-  if (name === "Number") return coerceToNumber(raw)
  if (name === "Boolean") return Boolean(raw)
-  if (name === "isFinite") return Number.isFinite(coerceToNumber(raw))
-  if (name === "isNaN") return Number.isNaN(coerceToNumber(raw))
  if (name === "parseInt") {
-    return parseInt(coerceToString(raw), coerceToNumber(args[1]))
+    return withPrimitives(ctx, ["string", "number"], [raw, args[1]], ([text, radix]) =>
+      parseInt(coerceToString(text), coerceToNumber(radix)),
+    )
  }
-  if (name === "parseFloat") return parseFloat(coerceToString(raw))
-  return coerceToString(raw)
+  return withPrimitives(ctx, name === "String" || name === "parseFloat" ? "string" : "number", [raw], ([value]) => {
+    if (name === "Number") return coerceToNumber(value)
+    if (name === "isFinite") return Number.isFinite(coerceToNumber(value))
+    if (name === "isNaN") return Number.isNaN(coerceToNumber(value))
+    if (name === "parseFloat") return parseFloat(coerceToString(value))
+    return coerceToString(value)
+  })
 }

 /** A global coercion function such as `Number` or `parseInt`. */
@@ -16,6 +16,8 @@ import {
  Obj,
  RegExpObj,
  SetObj,
+  WeakMapObj,
+  WeakSetObj,
  coerceToString,
  type Value,
 } from "../interpreter/objects.js"
@@ -84,7 +86,9 @@ export const structuredCloneGlobal = <R>(ctx: Interpreter<R>) =>
        if (hasOwn(value, "cause")) define(copy, "cause", clone(getOwn(value, "cause")), hidden)
        return copy
      }
-      if (isRuntimeReference(value)) throw typeError(`DataCloneError: ${describeValue(value)} could not be cloned.`)
+      if (isRuntimeReference(value) || value instanceof WeakMapObj || value instanceof WeakSetObj) {
+        throw typeError(`DataCloneError: ${describeValue(value)} could not be cloned.`)
+      }
      const copy = remember(
        value instanceof Arr ? new Arr(builtins.Array, new Array(value.items.length)) : new Obj(builtins.Object),
      )
@@ -1571,3 +1571,416 @@ describe("this, arguments, and Function.prototype.call/apply/bind", () => {
    )
  })
 })
+
+describe("ToPrimitive: operators and conversions honor program valueOf and toString", () => {
+  test("program-installed valueOf and toString on opaque values are ignored at every site", async () => {
+    expect(
+      await value(`
+        const f = () => 1
+        f.toString = () => "custom"
+        f.valueOf = () => 5
+        return [String(f), \`\${f}\`, [f].join(), new Error(f).message, isNaN(Number(f)), isNaN(Math.abs(f))]
+      `),
+    ).toEqual(["[object Function]", "[object Function]", "[object Function]", "[object Function]", true, true])
+  })
+
+  test("== converts an object facing a non-nullish primitive through its own valueOf", async () => {
+    expect(
+      await value(`
+        const one = { valueOf() { return 1 } }
+        return [one == 1, 1 == one, one == true, one == "1", one == null, one == one, one == { valueOf() { return 1 } }, [1] == 1]
+      `),
+    ).toEqual([true, true, true, true, false, true, false, true])
+    expect((await error(`(() => 1) == 1`)).message).toContain("Binary operators require data values")
+  })
+
+  test("operators, unary, template literals, and conversion functions use the object's own methods", async () => {
+    expect(
+      await value(`
+        const money = { valueOf() { return 7 } }
+        return [money * 2, money + 1, money + "", -money, +money, ~money, money < 8, money ** 2, money | 8,
+          Number(money), Math.max(money, 1), \`\${money}\`, String(money), isNaN(money), isFinite(money),
+          parseInt({ toString() { return "42px" } }), parseInt("ff", { valueOf() { return 16 } }),
+          Number.parseFloat({ toString() { return "1.5" } })]
+      `),
+    ).toEqual([
+      14,
+      8,
+      "7",
+      -7,
+      7,
+      -8,
+      true,
+      49,
+      15,
+      7,
+      7,
+      "[object Object]",
+      "[object Object]",
+      false,
+      true,
+      42,
+      255,
+      1.5,
+    ])
+  })
+
+  test("the hint picks the method: + and Number prefer valueOf, template literals and String prefer toString", async () => {
+    expect(
+      await value(`
+        const both = { valueOf() { return 1 }, toString() { return "s" } }
+        return [both + "", \`\${both}\`, String(both), both * 2, new Error(both).message, [both].join(), [both, 2] + ""]
+      `),
+    ).toEqual(["1", "s", "s", 2, "s", "s", "s,2"])
+  })
+
+  test("operands convert left then right, and a throwing valueOf surfaces as the program error", async () => {
+    expect(
+      await value(`
+        const order = []
+        const a = { valueOf() { order.push("a"); return 1 } }, b = { valueOf() { order.push("b"); return 2 } }
+        a + b; a < b; a - b
+        return order
+      `),
+    ).toEqual(["a", "b", "a", "b", "a", "b"])
+    expect(
+      await value(`
+        const bad = { valueOf() { throw new RangeError("nope") } }
+        const names = []
+        try { bad + 1 } catch (e) { names.push(e.name) }
+        try { Number(bad) } catch (e) { names.push(e.name) }
+        try { Math.abs(bad) } catch (e) { names.push(e.name) }
+        return names
+      `),
+    ).toEqual(["RangeError", "RangeError", "RangeError"])
+  })
+
+  test("arrays keep their built-in join form unless the program replaces toString", async () => {
+    expect(
+      await value(`
+        const arr = [1, 2]
+        const before = [arr + "", [] + [], [1, , 3].join("-"), [1, { toString() { return "q" } }].join("-")]
+        arr.toString = () => "x"
+        return [...before, arr + "", \`\${arr}\`, String(arr)]
+      `),
+    ).toEqual(["1,2", "", "1--3", "1-q", "x", "x", "x"])
+  })
+
+  test("update and compound assignment convert the current value", async () => {
+    expect(
+      await value(`
+        let x = { valueOf() { return 5 } }
+        const o = { n: { valueOf() { return 4 } } }
+        const after = x++
+        o.n += 1
+        o.n++
+        let s = { valueOf() { return 2 } }
+        s *= 3
+        return [after, x, o.n, s]
+      `),
+    ).toEqual([5, 6, 6, 6])
+  })
+
+  test("functions and other opaque values still reject arithmetic, and an object without a primitive form throws", async () => {
+    expect((await error(`const f = () => 1; return f + 1`)).message).toContain("Binary operators require data values")
+    expect((await error(`return -(() => 1)`)).message).toContain("Unary operators require data values")
+    const failure = await error(`return { valueOf() { return {} }, toString() { return [] } } + 1`)
+    expect(failure.message).toContain("Cannot convert object to primitive value")
+  })
+})
+
+describe("object destructuring from primitives", () => {
+  test("reads through the primitive's prototype like member access", async () => {
+    expect(
+      await value(`
+        const { length, 0: first, toUpperCase } = "abc"
+        const { toFixed } = 1.5
+        const {} = true
+        const { 0: a, ...rest } = "xyz"
+        const { ...none } = 42
+        let n
+        ;({ length: n } = "hello")
+        return [length, first, toUpperCase.call("q"), toFixed.call(2.345, 1), a, rest, none, n]
+      `),
+    ).toEqual([3, "a", "Q", "2.3", "x", { 1: "y", 2: "z" }, {}, 5])
+  })
+
+  test("only null and undefined sources throw", async () => {
+    expect((await error(`const { a } = null`)).message).toContain("Cannot destructure null as it is null")
+    expect((await error(`const {} = undefined`)).message).toContain("Cannot destructure undefined")
+    expect((await error(`let a; ({ a } = undefined)`)).message).toContain("Cannot destructure undefined")
+  })
+})
+
+describe("Date components convert through ToPrimitive", () => {
+  test("construction and Date.UTC ask each of the first seven arguments in order", async () => {
+    expect(
+      await value(`
+        const seen = []
+        const part = (n) => ({ valueOf() { seen.push(n); return n } })
+        const time = new Date(part(2024), part(1), part(2), part(3), part(4), part(5), part(6), part(99)).getTime()
+        const utc = Date.UTC(2024, { valueOf() { return 0 } }, 15)
+        return [seen, time === new Date(2024, 1, 2, 3, 4, 5, 6).getTime(), utc === Date.UTC(2024, 0, 15)]
+      `),
+    ).toEqual([[2024, 1, 2, 3, 4, 5, 6], true, true])
+    expect((await error(`new Date(2024, { valueOf() { throw new RangeError("boom") } })`)).message).toContain("boom")
+  })
+
+  test("setters on an invalid Date answer NaN without overwriting a time set during coercion", async () => {
+    expect(
+      await value(`
+        const d = new Date(NaN)
+        const result = d.setDate({ valueOf() { d.setTime(0); return 1 } })
+        const y = new Date(NaN)
+        return [Number.isNaN(result), d.getTime(), y.setFullYear(2020) === Date.UTC(2020, 0, 1) - y.getTimezoneOffset() * 60000]
+      `),
+    ).toEqual([true, 0, true])
+  })
+})
+
+describe("iteration callbacks receive thisArg", () => {
+  test("Array, Array.from, Map, Set, URLSearchParams, Headers, and Uint8Array pass it as this", async () => {
+    expect(
+      await value(`
+        const c = { n: 0 }
+        const count = function () { this.n++ }
+        ;[1, 2].forEach(count, c)
+        ;[1].map(count, c)
+        ;[1].filter(count, c)
+        ;[1].find(count, c)
+        ;[1].findIndex(count, c)
+        ;[1].findLast(count, c)
+        ;[1].findLastIndex(count, c)
+        ;[1].some(count, c)
+        ;[1].every(count, c)
+        ;[1].flatMap(count, c)
+        Array.from([1], count, c)
+        Array.from({ length: 1 }, count, c)
+        new Map([[1, 1]]).forEach(count, c)
+        new Set([1]).forEach(count, c)
+        new URLSearchParams("a=1").forEach(count, c)
+        new Headers({ a: "1" }).forEach(count, c)
+        new Uint8Array([1]).forEach(count, c)
+        return c.n
+      `),
+    ).toBe(18)
+    expect(await value(`return [1, 2].map(function (x) { return x + this.v }, { v: 10 })`)).toEqual([11, 12])
+  })
+
+  test("arrows keep their lexical this, reduce takes an initial value instead, and opaque values are only bound", async () => {
+    expect(await value(`return [1].map(() => typeof this, { v: 1 })`)).toEqual(["undefined"])
+    expect(
+      await value(`return [1, 2].reduce(function (a, b) { return a + b + (this === undefined ? 0 : 100) }, 0)`),
+    ).toBe(3)
+    expect(
+      await value(`
+        let seen
+        ;[1].forEach(function () { seen = this }, tools.nowhere)
+        return typeof seen
+      `),
+    ).toBe("function")
+  })
+})
+
+describe("computed property keys convert through the object's own toString", () => {
+  test("reads, writes, compound assignment, in, delete, literals, and destructuring share one conversion", async () => {
+    expect(
+      await value(`
+        const key = { toString() { return "id" } }
+        const o = {}
+        o[key] = 1
+        o[key] += 1
+        const literal = { [key]: "lit" }
+        const had = key in o
+        delete literal[key]
+        return [o.id, had, (({ [key]: v }) => v)(o), literal, o[[1, 2]] === undefined]
+      `),
+    ).toEqual([2, true, 2, {}, true])
+    expect(
+      await value(`
+        const seen = []
+        const base = { x: 1 }
+        base[{ toString() { seen.push(1); return "" } }] ^= 0
+        base[{ toString() { seen.push(2); return "x" } }]++
+        return [seen, base[""], base.x]
+      `),
+    ).toEqual([[1, 2], 0, 2])
+  })
+
+  test("valueOf is the fallback, a symbol result stays a symbol, and conversion failures surface", async () => {
+    expect(
+      await value(`
+        const o = { 7: "seven" }
+        const sym = { toString() { return Symbol.iterator } }
+        o[sym] = 1
+        return [o[{ valueOf() { return 7 }, toString: undefined }], typeof o[Symbol.iterator], Object.keys(o)]
+      `),
+    ).toEqual(["seven", "number", ["7"]])
+    expect((await error(`({})[{ toString() { throw new RangeError("bad key") } }]`)).message).toContain("bad key")
+    expect((await error(`({})[{ toString() { return {} }, valueOf() { return {} } }]`)).message).toContain(
+      "Cannot convert object to primitive value",
+    )
+    expect((await error(`const key = { toString() { return "a" } }; key in 5`)).message).toContain(
+      "requires a data object on the right-hand side",
+    )
+  })
+
+  test("a nullish base throws before the key converts, as ToObject precedes ToPropertyKey", async () => {
+    const failure = await error(`const base = null; base[{ toString() { throw new RangeError("key evaluated") } }]`)
+    expect(failure.message).toContain("Cannot read properties of null")
+  })
+
+  test("opaque values keep their built-in key form and a tool reference toString is never called", async () => {
+    expect(
+      await value(`
+        const o = { "[object Function]": 1, "[object Promise]": 2 }
+        return [o[() => 1], o[Promise.resolve("k")]]
+      `),
+    ).toEqual([1, 2])
+    expect((await error(`({})[{ toString: tools.nowhere }] = 1`)).message).toContain(
+      "Cannot convert object to primitive value",
+    )
+  })
+})
+
+describe("String and Number method arguments convert through ToPrimitive", () => {
+  test("string positions use the string hint and numeric positions the number hint", async () => {
+    expect(
+      await value(`
+        const s = { toString() { return "b" } }
+        const n = { valueOf() { return 1 } }
+        return [
+          "abc".indexOf(s), "abc".lastIndexOf(s), "abc".includes(s), "abc".startsWith(s, n), "abc".endsWith(s, 2),
+          "abc".charAt(n), "abc".at({ valueOf() { return -1 } }), "abc".slice(n), "abc".substring(n, 2),
+          "abc".charCodeAt(n), "a".padStart({ valueOf() { return 3 } }, s), "x".padEnd(3, s), "ab".repeat({ valueOf() { return 2 } }),
+          "a".concat(s, { valueOf() { return 1 }, toString() { return "T" } }), "b".localeCompare(s),
+          (1.005).toFixed({ valueOf() { return 2 } }), (255).toString({ valueOf() { return 16 } }),
+          (1234.5678).toPrecision({ valueOf() { return 6 } }), (12345).toExponential({ valueOf() { return 2 } }),
+        ]
+      `),
+    ).toEqual([
+      1,
+      1,
+      true,
+      true,
+      true,
+      "b",
+      "c",
+      "bc",
+      "b",
+      98,
+      "bba",
+      "xbb",
+      "abab",
+      "abT",
+      0,
+      "1.00",
+      "ff",
+      "1234.57",
+      "1.23e+4",
+    ])
+  })
+
+  test("split, replace, match, and search convert a plain pattern but keep a RegExp as is", async () => {
+    expect(
+      await value(`
+        const s = { toString() { return "b" } }
+        return [
+          "abc".split(s), "abc".split(/b/, { valueOf() { return 1 } }), "abc".split(undefined, { valueOf() { return undefined } }),
+          "abc".replace(s, "X"), "abc".replace(/b/, { toString() { return "R" } }), "abc".replaceAll(s, s),
+          "abc".replace(s, (m) => m.toUpperCase()), "abc".match(s)[0], "abcb".matchAll(s).length, "abc".search(s),
+        ]
+      `),
+    ).toEqual([["a", "c"], ["a"], [], "aXc", "aRc", "abc", "aBc", "b", 2, 1])
+    expect((await error(`"abc".includes(/b/)`)).message).toContain("cannot take a regular expression")
+  })
+
+  test("the receiver converts first, then each consumed argument, in spec order; extra arguments are untouched", async () => {
+    expect(
+      await value(`
+        const log = []
+        const observer = (name, string, number) => ({
+          toString() { log.push("toString:" + name); return string },
+          valueOf() { log.push("valueOf:" + name); return number },
+        })
+        const padded = String.prototype.padStart.call(observer("receiver", {}, "abc"), observer("maxLength", 11, {}), observer("fillString", {}, "def"))
+        const extra = "abc".indexOf("b", 1, { valueOf() { throw new Error("extra argument converted") } })
+        return [padded, log, extra, String.prototype.trim.call({ toString() { return " abc " } })]
+      `),
+    ).toEqual([
+      "defdefdeabc",
+      [
+        "toString:receiver",
+        "valueOf:receiver",
+        "valueOf:maxLength",
+        "toString:maxLength",
+        "toString:fillString",
+        "valueOf:fillString",
+      ],
+      1,
+      "abc",
+    ])
+  })
+
+  test("conversion failures surface and opaque arguments still reject", async () => {
+    expect((await error(`"abc".indexOf({ toString() { throw new RangeError("intostr") } })`)).message).toContain(
+      "intostr",
+    )
+    expect((await error(`(1).toString({ valueOf() { throw new SyntaxError("poison") } })`)).message).toContain("poison")
+    expect((await error(`(1).toFixed({ toString() { return {} }, valueOf() { return {} } })`)).message).toContain(
+      "Cannot convert object to primitive value",
+    )
+    expect((await error(`"abc".indexOf(tools.nowhere)`)).message).toContain("expects argument 1 to be a data value")
+    expect((await error(`"abc".indexOf(Promise.resolve("b"))`)).message).toContain(
+      "expects argument 1 to be a data value",
+    )
+  })
+})
+
+describe("WeakMap and WeakSet", () => {
+  test("hold program objects by identity and answer like JS for non-object keys", async () => {
+    expect(
+      await value(`
+        const k = {}
+        const f = () => 1
+        const wm = new WeakMap([[k, 1]])
+        const ws = new WeakSet([k])
+        return [
+          wm.set(f, "fn") === wm, wm.get(k), wm.get(f), wm.has({}), wm.get(1), wm.has(1), wm.delete("s"),
+          wm.getOrInsert(k, 9), wm.getOrInsertComputed({}, (key) => typeof key),
+          ws.add(f) === ws, ws.has(k), ws.has(f), ws.has(1), ws.delete(k), ws.has(k),
+          String(wm), wm.size, "clear" in wm, Symbol.iterator in ws, JSON.stringify(wm),
+        ]
+      `),
+    ).toEqual([
+      true,
+      1,
+      "fn",
+      false,
+      null,
+      false,
+      false,
+      1,
+      "object",
+      true,
+      true,
+      true,
+      false,
+      true,
+      false,
+      "[object WeakMap]",
+      null,
+      false,
+      false,
+      "{}",
+    ])
+  })
+
+  test("reject primitive keys, plain calls, bad receivers, and cloning", async () => {
+    expect((await error(`new WeakMap().set(1, 1)`)).message).toContain("Invalid value used as weak map key")
+    expect((await error(`new WeakSet([1])`)).message).toContain("Invalid value used in weak set")
+    expect((await error(`WeakMap()`)).message).toContain("new")
+    expect((await error(`WeakMap.prototype.get.call(new Map(), {})`)).message).toContain("incompatible receiver")
+    expect((await error(`structuredClone(new WeakSet())`)).message).toContain("DataCloneError")
+  })
+})
@@ -12,7 +12,8 @@ Without them the runner registers no tests, so CI is unaffected. Licensed under

 ## Layout

- `manifest.json` — the pinned upstream revision, which upstream directories are copied, and what is left out.
+- `manifest.json` — the pinned upstream revision, which upstream directories are copied (every `built-ins` and
+  `language` directory, about 14,900 files after filtering), and what is left out.
 - `built-ins/`, `language/` — the copied files, mirroring upstream `test/`; gitignored.
 - `skipped.txt` — vendored files that fail on a known interpreter gap, one `path  # reason` per line. They are
  skipped, and each gap is listed as unchecked in `interpreter-support.md`.
@@ -26,7 +27,8 @@ Without them the runner registers no tests, so CI is unaffected. Licensed under
 manifest marks unsupported, or when its code matches one of the manifest's `boundaries` patterns. The sync checks the
 checkout is at the pinned revision, so every machine runs the same files. Boundaries are
 intentional limits of the interpreter, not compatibility work: classes, prototype objects, property descriptors,
-accessors, boxed primitives, sloppy mode, `eval`, `Symbol()`, and the `$262` host API. If one
+accessors, boxed primitives, typed arrays and buffers, `WeakRef` and `FinalizationRegistry`, `Reflect` and `Proxy`, sloppy mode, `eval`,
+`Symbol()`, and the `$262` host API. If one
 of those decisions changes, delete its entry and re-sync; the tests are upstream, not lost.

 ## Commands
@@ -1,33 +1,16 @@
 {
  "revision": "250f204f23a9249ff204be2baec29600faae7b75",
-  "directories": [
-    "built-ins/Array/prototype",
-    "built-ins/Function/prototype/apply",
-    "built-ins/Function/prototype/bind",
-    "built-ins/Function/prototype/call",
-    "built-ins/Iterator",
-    "built-ins/Object/freeze",
-    "built-ins/Object/getPrototypeOf",
-    "built-ins/Object/is",
-    "built-ins/Object/isExtensible",
-    "built-ins/Object/isFrozen",
-    "built-ins/Object/isSealed",
-    "built-ins/Object/preventExtensions",
-    "built-ins/String/raw",
-    "language/arguments-object",
-    "language/expressions/does-not-equals",
-    "language/expressions/equals",
-    "language/expressions/tagged-template",
-    "language/expressions/this",
-    "language/statements"
-  ],
+  "directories": ["built-ins", "language"],
  "harness": ["assert.js", "sta.js", "compareArray.js", "doneprintHandle.js"],
  "flags": ["module", "raw", "noStrict"],
  "boundaries": {
    "class": "\\bclass\\s*[A-Za-z_${]",
    "accessor properties": "\\b(get|set)\\s+[\\w$\\[][^\\n(]*\\(",
    "property descriptors": "Object\\.(defineProperty|defineProperties|getOwnPropertyDescriptors?|getOwnPropertyNames|setPrototypeOf)\\b",
-    "boxed primitives": "\\bnew\\s+(String|Number|Boolean)\\s*\\(",
+    "boxed primitives": "\\b(new\\s+(String|Number|Boolean)\\b|Object\\s*\\(\\s*(true|false|-?\\d|['\"]))",
+    "typed arrays and buffers": "\\b(ArrayBuffer|SharedArrayBuffer|DataView|Int8Array|Uint8ClampedArray|Int16Array|Uint16Array|Int32Array|Uint32Array|Float16Array|Float32Array|Float64Array|BigInt64Array|BigUint64Array)\\b",
+    "weak collections": "\\b(WeakRef|FinalizationRegistry)\\b",
+    "Reflect and Proxy": "\\b(Reflect|Proxy)\\b",
    "sloppy mode": "\\bwith\\s*\\(",
    "eval": "\\b(eval|Function)\\b",
    "new.target": "\\bnew\\.target\\b",
@@ -91,8 +74,6 @@
    "Uint16Array",
    "Uint32Array",
    "uint8array-base64",
-    "WeakMap",
-    "WeakSet",
    "WeakRef",
    "FinalizationRegistry",
    "Intl-enumeration",
@@ -354,3 +354,17 @@ describe("tools.search alias", () => {
    expect(await value(runtime, `return await tools.search({})`)).toBe("custom")
  })
 })
+
+describe("tool references under ==", () => {
+  test("compare by identity against data objects without converting them", async () => {
+    const runtime = CodeMode.make({ tools: { probe: echo("Probe", "ok") } })
+    expect(
+      await value(
+        runtime,
+        `let calls = 0
+         const o = { valueOf() { calls++; return 1 } }
+         return [o == tools.probe, tools == { a: 1 }, tools.probe == null, calls]`,
+      ),
+    ).toEqual([false, false, false, 0])
+  })
+})
@@ -1,6 +1,6 @@
 {
  "name": "@opencode/console-app",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "type": "module",
  "license": "MIT",
  "scripts": {
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode/console-core",
-  "version": "2.0.16",
+  "version": "2.0.18",
  "private": true,
  "type": "module",
  "license": "MIT",
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
opencode	cd9a14a6b6	release: v2.0.18	2026-09-25 23:57:32 +00:00
Kit LangtonandAiden Cline	041885d838	fix(core): decode legacy media in compaction checkpoints (#51409 ) Co-authored-by: Aiden Cline <aidenpcline@gmail.com>	2026-09-25 18:08:16 -05:00
Aiden Cline	29ce49db0f	refactor(util): share a browser opener across cli, tui, and core (#51412 )	2026-09-25 18:00:32 -05:00
opencode	00738c5b2d	sync release versions for v2.0.17	2026-09-25 21:09:12 +00:00
Aiden Cline	6ec8ca920f	feat(core): name Copilot sessions with the free utility model (#51237 )	2026-09-25 14:53:16 -05:00
Shoubhit Dash	6585bb7105	fix(ai): keep OpenAI image output settings and Z.ai URL expiry (#51380 )	2026-09-25 22:51:46 +05:30
Shoubhit Dash	f954688fbb	fix(ai): harden OpenAI transcription stream parsing (#51378 )	2026-09-25 22:51:22 +05:30
Shoubhit Dash	1463dabde9	fix(ai): tighten media error consistency (#51374 )	2026-09-25 22:46:04 +05:30
Shoubhit Dash	29ea6ee05b	test(ai): cover media facade selectors and url asset edges (#51376 )	2026-09-25 22:37:20 +05:30
Shoubhit Dash	b170904731	docs(ai): describe transcription speakers as a constraint (#51382 )	2026-09-25 22:36:02 +05:30
Shoubhit Dash	88e1fa9304	fix(ai): accept timestamps: false on speech routes without timestamps (#51375 )	2026-09-25 22:33:59 +05:30
opencode-agent[bot]andvimtor	ff1bf315ed	docs(www): hide Console Usage API documentation (#51358 ) Co-authored-by: vimtor <36263538+vimtor@users.noreply.github.com>	2026-09-25 19:01:48 +02:00
Shoubhit Dash	144ce00e00	fix(ai): bound generation event poll sleep by the deadline (#51372 )	2026-09-25 22:31:35 +05:30
Shoubhit Dash	ad504094f0	fix(ai): never delete a finished Runway task on cancel (#51373 )	2026-09-25 22:24:16 +05:30
Shoubhit Dash	bad6834a3e	fix(ai): size fal Kontext by aspect ratio and decode sync_mode data URIs (#51371 )	2026-09-25 22:23:14 +05:30
Shoubhit Dash	0c4bbc3cd1	feat(ai): keep prompt cache across effort switches on GPT-6 Sol and Luna (#51339 )	2026-09-25 22:15:23 +05:30
Shoubhit Dash	ae7dd82126	fix(ai): report Black Forest Labs submit cost as image usage (#51370 )	2026-09-25 22:13:55 +05:30
Shoubhit Dash	65d5123ead	fix(ai): enable AssemblyAI speaker labels when speakers is set (#51369 )	2026-09-25 22:11:44 +05:30
Shoubhit Dash	4eb46a8885	fix(core): revert always-thinking variants for Claude Opus 5.5 (#51359 )	2026-09-25 22:03:12 +05:30
Jack	1986e92842	docs(go): show permanent DeepSeek $60 allowance (#51363 )	2026-09-26 00:17:08 +08:00
Shoubhit Dash	14fc63ba9e	fix(core): keep thinking on for Claude Opus 5.5 variants (#51338 )	2026-09-25 18:32:41 +05:30
opencode-agent[bot]andnexxeln	c34ffa117e	fix(ai): preserve Gemini 3.8 TTS WAV output (#51300 ) Co-authored-by: nexxeln <95541290+nexxeln@users.noreply.github.com>	2026-09-25 18:11:36 +05:30
opencode-agent[bot]vimtor vimtor	beeb14e910	feat(prompt): undo queued prompts back into the input (#51124 ) Co-authored-by: vimtor <36263538+vimtor@users.noreply.github.com> Co-authored-by: vimtor <vn4varro@gmail.com>	2026-09-25 14:36:29 +02:00
opencode-agent[bot]	aae42e2e75	chore(core): refresh bundled models.dev snapshot	2026-09-25 12:21:04 +00:00
opencode-agent[bot]vimtor vimtor	cc9011c1ae	fix(tui): virtualize large added-file diffs (#51122 ) Co-authored-by: vimtor <36263538+vimtor@users.noreply.github.com> Co-authored-by: vimtor <vn4varro@gmail.com>	2026-09-25 13:51:00 +02:00
Victor Navarro	6cd938e1e9	feat(core): register Console-hosted MCP servers (#51325 )	2026-09-25 13:16:04 +02:00
Jack	7de6b3fc15	docs(console): document Qwen3.8 Max (#51320 )	2026-09-25 19:13:45 +08:00
opencode-agent[bot]	c1c9a13993	chore: update nix node_modules hashes	2026-09-25 08:37:39 +00:00
Simon Klee	917d904f18	tui: update OpenTUI v0.5.12 (#50567 )	2026-09-25 08:17:14 +00:00
opencode-agent[bot]andBrendonovich	ee5b67eb84	fix(app): unify session project icon resolution (#51288 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-09-25 07:47:12 +00:00
Aiden Cline	048a47e89e	docs: focus compaction page on user-facing behavior (#51270 )	2026-09-25 00:21:17 -05:00
Aiden Cline	5335347e80	feat(codemode): add WeakMap and WeakSet (#51257 )	2026-09-25 00:15:19 -05:00
Aiden Cline	16b18dff13	Revert "fix(core): fit model limits and recover compaction overflow" (#51273 )	2026-09-25 00:12:14 -05:00
Aiden Cline	61c2349cef	fix(core): fit model limits and recover compaction overflow (#51238 )	2026-09-25 00:11:40 -05:00
opencode-agent[bot]andBrendonovich	684721efb8	feat(app): add provider account switching (#51266 ) Co-authored-by: Brendonovich <Brendonovich@users.noreply.github.com>	2026-09-25 05:03:33 +00:00
Aiden Cline	962c14a49c	fix(codemode): honor thisArg, program toString in computed keys, and ToPrimitive in String and Number arguments (#51264 )	2026-09-24 23:46:15 -05:00
opencode-agent[bot]andrekram1-node	85b98e7da4	fix(tui): handle storage watcher errors after startup (#51243 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-09-24 20:25:06 -05:00
Aiden Cline	8061220b08	test(codemode): vendor every eligible test262 directory and bound unsupported globals (#51242 )	2026-09-24 20:19:24 -05:00
Luke Parker	b02cc35f13	fix(desktop): keep browser page visible under floating content (#51240 )	2026-09-25 10:35:17 +10:00
Aiden Cline	e23d89c9a9	fix(codemode): destructure object patterns from primitives and convert Date components through ToPrimitive (#51239 )	2026-09-24 19:32:19 -05:00
ARH Alireza Haghdoost Claude Sonnet 5	e8b3e19e85	fix(tui): don't crash when fs.watch throws (e.g. ENOSPC) (#51210 ) Co-authored-by: Alireza Haghdoost <haghdoost@uber.com> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>	2026-09-24 19:16:43 -05:00
Aiden Cline	5256f30957	feat(codemode): honor program valueOf and toString in operators and conversions (#50837 )	2026-09-24 18:45:48 -05:00