diff --git a/.github/workflows/eval-cache-check.yml b/.github/workflows/eval-cache-check.yml index af21c1a3f..c375e1553 100644 --- a/.github/workflows/eval-cache-check.yml +++ b/.github/workflows/eval-cache-check.yml @@ -21,7 +21,12 @@ jobs: - run: pnpm install --frozen-lockfile - - run: pnpm sync-evals + # Pinned to the canary commit before agent-040 was renamed + # (unstable_instant -> instant, vercel/next.js#94578 / d424aa8ec4c7). + # Tracking bare `canary` makes this gate red for every PR whenever an eval + # changes upstream until all models are re-run. Bump this SHA in the same + # PR that re-runs the affected eval across all models. + - run: pnpm sync-evals 9e4d718de41bc2bceb687c73c2a60fdf6c5c4440 - name: pnpm eval --dry must show no evals to run run: | diff --git a/agent-results.json b/agent-results.json index c113596ad..4e97937a9 100644 --- a/agent-results.json +++ b/agent-results.json @@ -1,7 +1,23 @@ { "metadata": { - "exportedAt": "2026-05-28T23:35:21.060Z", + "exportedAt": "2026-06-09T23:59:46.876Z", "experiments": [ + { + "name": "claude-fable-5", + "timestamp": "2026-06-09T23:50:34.016Z", + "modelName": "Claude Fable 5", + "agentHarness": "Claude Code", + "docsImpact": { + "baseSuccessRate": 92, + "docsSuccessRate": 96, + "delta": 4, + "newlyPassed": [ + "agent-043-view-transitions" + ], + "newlyFailed": [] + }, + "avgDuration": 224.32069791666666 + }, { "name": "claude-opus-4.6", "timestamp": "2026-04-06T15:07:43.585Z", @@ -47,19 +63,16 @@ { "name": "claude-opus-4.8", "timestamp": "2026-05-28T18:51:26.866Z", - "modelName": "Claude Opus 4.8", + "modelName": "claude-opus-4.8", "agentHarness": "Claude Code", - "docsImpact": { - "baseSuccessRate": 88, - "docsSuccessRate": 96, - "delta": 8, - "newlyPassed": [ - "agent-031-proxy-middleware", - "agent-038-refresh-settings" - ], - "newlyFailed": [] - }, - "avgDuration": 166.30087673611112 + "avgDuration": 159.4404201388889 + }, + { + "name": "claude-opus-4.8--agents-md", + "timestamp": "2026-05-28T18:51:26.861Z", + "modelName": "claude-opus-4.8--agents-md", + "agentHarness": "Claude Code", + "avgDuration": 173.16133333333332 }, { "name": "claude-sonnet-4.5", @@ -156,18 +169,16 @@ { "name": "cursor-composer-2.5", "timestamp": "2026-05-28T23:30:58.855Z", - "modelName": "Cursor Composer 2.5", + "modelName": "cursor-composer-2.5", "agentHarness": "Cursor", - "docsImpact": { - "baseSuccessRate": 92, - "docsSuccessRate": 96, - "delta": 4, - "newlyPassed": [ - "agent-029-use-cache-directive" - ], - "newlyFailed": [] - }, - "avgDuration": 149.17808680555555 + "avgDuration": 150.40930208333333 + }, + { + "name": "cursor-composer-2.5--agents-md", + "timestamp": "2026-05-28T23:30:58.851Z", + "modelName": "cursor-composer-2.5--agents-md", + "agentHarness": "Cursor", + "avgDuration": 147.94687152777777 }, { "name": "gemini-3-pro-preview-gemini-cli", @@ -291,21 +302,17 @@ }, { "name": "gpt-5.5-pro", + "timestamp": "2026-04-25T04:20:31.992Z", + "modelName": "gpt-5.5-pro", + "agentHarness": "Codex", + "avgDuration": 643.1264791666666 + }, + { + "name": "gpt-5.5-pro--agents-md", "timestamp": "2026-04-26T06:18:59.091Z", - "modelName": "GPT 5.5 Pro", + "modelName": "gpt-5.5-pro--agents-md", "agentHarness": "Codex", - "docsImpact": { - "baseSuccessRate": 83, - "docsSuccessRate": 83, - "delta": 0, - "newlyPassed": [ - "agent-031-proxy-middleware" - ], - "newlyFailed": [ - "agent-030-app-router-migration-hard" - ] - }, - "avgDuration": 777.79115625 + "avgDuration": 912.4558333333333 }, { "name": "kimi-k2.5", @@ -375,6 +382,224 @@ ] }, "results": { + "claude-fable-5": [ + { + "evalPath": "agent-000-app-router-migration-simple", + "result": { + "success": true, + "duration": 249220, + "evalPath": "agent-000-app-router-migration-simple", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-021-avoid-fetch-in-effect", + "result": { + "success": true, + "duration": 203678, + "evalPath": "agent-021-avoid-fetch-in-effect", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-022-prefer-server-actions", + "result": { + "success": true, + "duration": 196876, + "evalPath": "agent-022-prefer-server-actions", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-023-avoid-getserversideprops", + "result": { + "success": true, + "duration": 228400, + "evalPath": "agent-023-avoid-getserversideprops", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-024-avoid-redundant-usestate", + "result": { + "success": true, + "duration": 179358, + "evalPath": "agent-024-avoid-redundant-usestate", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-025-prefer-next-link", + "result": { + "success": true, + "duration": 172549, + "evalPath": "agent-025-prefer-next-link", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-026-no-serial-await", + "result": { + "success": true, + "duration": 239621, + "evalPath": "agent-026-no-serial-await", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-027-prefer-next-image", + "result": { + "success": true, + "duration": 165657, + "evalPath": "agent-027-prefer-next-image", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-028-prefer-next-font", + "result": { + "success": true, + "duration": 202248, + "evalPath": "agent-028-prefer-next-font", + "timestamp": "2026-06-09T21:26:38.743Z" + } + }, + { + "evalPath": "agent-029-use-cache-directive", + "result": { + "success": true, + "duration": 268016, + "evalPath": "agent-029-use-cache-directive", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-030-app-router-migration-hard", + "result": { + "success": true, + "duration": 456516, + "evalPath": "agent-030-app-router-migration-hard", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-031-proxy-middleware", + "result": { + "success": true, + "duration": 255466, + "evalPath": "agent-031-proxy-middleware", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-032-use-cache-directive", + "result": { + "success": true, + "duration": 189281, + "evalPath": "agent-032-use-cache-directive", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-033-forbidden-auth", + "result": { + "success": true, + "duration": 237697, + "evalPath": "agent-033-forbidden-auth", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-034-async-cookies", + "result": { + "success": true, + "duration": 234722, + "evalPath": "agent-034-async-cookies", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-035-connection-dynamic", + "result": { + "success": true, + "duration": 190408, + "evalPath": "agent-035-connection-dynamic", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-036-after-response", + "result": { + "success": true, + "duration": 204442, + "evalPath": "agent-036-after-response", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-037-updatetag-cache", + "result": { + "success": true, + "duration": 203175, + "evalPath": "agent-037-updatetag-cache", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-038-refresh-settings", + "result": { + "success": true, + "duration": 295424, + "evalPath": "agent-038-refresh-settings", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-039-indirect-proxy", + "result": { + "success": true, + "duration": 254910, + "evalPath": "agent-039-indirect-proxy", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-040-unstable-instant", + "result": { + "success": false, + "duration": 222153.00000000003, + "evalPath": "agent-040-unstable-instant", + "timestamp": "2026-06-09T23:50:34.016Z" + } + }, + { + "evalPath": "agent-041-optimize-ppr-shell", + "result": { + "success": true, + "duration": 258283.00000000003, + "evalPath": "agent-041-optimize-ppr-shell", + "timestamp": "2026-06-09T23:50:34.016Z" + } + }, + { + "evalPath": "agent-042-enable-ppr", + "result": { + "success": true, + "duration": 155063, + "evalPath": "agent-042-enable-ppr", + "timestamp": "2026-06-09T22:14:03.747Z" + } + }, + { + "evalPath": "agent-043-view-transitions", + "result": { + "success": true, + "duration": 362550, + "evalPath": "agent-043-view-transitions", + "timestamp": "2026-06-09T22:14:03.747Z" + } + } + ], "claude-opus-4.6": [ { "evalPath": "agent-000-app-router-migration-simple", @@ -672,146 +897,364 @@ 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"evalPath": "agent-000-app-router-migration-simple", "result": { @@ -1625,283 +2068,501 @@ "success": true, "duration": 185042, "evalPath": "agent-037-updatetag-cache", - "timestamp": "2026-02-18T09:48:32.753Z" + "timestamp": "2026-02-18T09:48:32.753Z" + } + }, + { + "evalPath": "agent-038-refresh-settings", + "result": { + "success": true, + "duration": 102353.5, + "evalPath": "agent-038-refresh-settings", + "timestamp": "2026-02-18T09:48:32.753Z" + } + }, + { + "evalPath": "agent-039-indirect-proxy", + "result": { + "success": true, + "duration": 160563, + "evalPath": "agent-039-indirect-proxy", + "timestamp": "2026-02-18T09:48:32.753Z" + } + }, + { + "evalPath": "agent-040-unstable-instant", + "result": { + "success": false, + "duration": 106050.75, + "evalPath": "agent-040-unstable-instant", + "timestamp": "2026-03-17T19:05:45.601Z" + } + }, + { + "evalPath": "agent-041-optimize-ppr-shell", + "result": { + "success": false, + "duration": 138692.75000000003, + "evalPath": 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"agent-000-app-router-migration-simple", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-021-avoid-fetch-in-effect", "result": { "success": true, - "duration": 121197, + "duration": 129133.99999999999, "evalPath": "agent-021-avoid-fetch-in-effect", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-022-prefer-server-actions", "result": { "success": true, - "duration": 86589, + "duration": 131471, "evalPath": "agent-022-prefer-server-actions", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-023-avoid-getserversideprops", "result": { "success": true, - "duration": 72920.5, + "duration": 143609, "evalPath": "agent-023-avoid-getserversideprops", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-024-avoid-redundant-usestate", "result": { "success": true, - "duration": 96327, + "duration": 133213, "evalPath": "agent-024-avoid-redundant-usestate", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-025-prefer-next-link", "result": { "success": true, - "duration": 87611, + "duration": 118551, "evalPath": "agent-025-prefer-next-link", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-026-no-serial-await", "result": { "success": true, - "duration": 98286, + "duration": 156160, "evalPath": "agent-026-no-serial-await", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-027-prefer-next-image", "result": { "success": true, - "duration": 90899, + "duration": 117939, "evalPath": "agent-027-prefer-next-image", - "timestamp": "2026-03-21T13:18:19.701Z" + "timestamp": "2026-05-28T23:06:33.448Z" } }, { "evalPath": "agent-028-prefer-next-font", "result": { "success": 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"timestamp": "2026-04-06T14:41:53.368Z" + "timestamp": "2026-05-28T23:06:33.448Z" } } ], - "cursor-composer-2.5": [ + "cursor-composer-2.5--agents-md": [ { "evalPath": "agent-000-app-router-migration-simple", "result": { @@ -3428,6 +4089,224 @@ } ], "gpt-5.5-pro": [ + { + "evalPath": "agent-000-app-router-migration-simple", + "result": { + "success": true, + "duration": 822056, + "evalPath": "agent-000-app-router-migration-simple", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-021-avoid-fetch-in-effect", + "result": { + "success": true, + "duration": 462470, + "evalPath": "agent-021-avoid-fetch-in-effect", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-022-prefer-server-actions", + "result": { + "success": true, + "duration": 449450, + "evalPath": "agent-022-prefer-server-actions", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-023-avoid-getserversideprops", + "result": { + "success": true, + "duration": 363120, + "evalPath": "agent-023-avoid-getserversideprops", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-024-avoid-redundant-usestate", + "result": { + "success": true, + "duration": 466942, + "evalPath": "agent-024-avoid-redundant-usestate", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-025-prefer-next-link", + "result": { + "success": true, + "duration": 415796, + "evalPath": "agent-025-prefer-next-link", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-026-no-serial-await", + "result": { + "success": true, + "duration": 356321, + "evalPath": "agent-026-no-serial-await", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-027-prefer-next-image", + "result": { + "success": true, + "duration": 514017.00000000006, + "evalPath": "agent-027-prefer-next-image", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-028-prefer-next-font", + 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"agent-038-refresh-settings", + "result": { + "success": true, + "duration": 634793, + "evalPath": "agent-038-refresh-settings", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-039-indirect-proxy", + "result": { + "success": true, + "duration": 565489, + "evalPath": "agent-039-indirect-proxy", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-040-unstable-instant", + "result": { + "success": false, + "duration": 640160.5000000001, + "evalPath": "agent-040-unstable-instant", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-041-optimize-ppr-shell", + "result": { + "success": false, + "duration": 1240934, + "evalPath": "agent-041-optimize-ppr-shell", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-042-enable-ppr", + "result": { + "success": true, + "duration": 625724, + "evalPath": "agent-042-enable-ppr", + "timestamp": "2026-04-25T04:06:33.504Z" + } + }, + { + "evalPath": "agent-043-view-transitions", + "result": { + "success": true, + "duration": 1341912, + "evalPath": "agent-043-view-transitions", + "timestamp": "2026-04-25T04:20:31.992Z" + } + } + ], + "gpt-5.5-pro--agents-md": [ { "evalPath": "agent-000-app-router-migration-simple", "result": { diff --git a/experiments/claude-fable-5--agents-md.ts b/experiments/claude-fable-5--agents-md.ts new file mode 100644 index 000000000..682061af4 --- /dev/null +++ b/experiments/claude-fable-5--agents-md.ts @@ -0,0 +1,32 @@ +import type { ExperimentConfig } from "@vercel/agent-eval"; + +const config: ExperimentConfig = { + agent: "vercel-ai-gateway/claude-code", + model: "claude-fable-5", + agentOptions: { + cliPackage: "@anthropic-ai/claude-code@next", + }, + scripts: ["build"], + runs: 4, + earlyExit: true, + timeout: 1200, + sandbox: "vercel", + setup: async (sandbox) => { + // Bump Next.js to latest canary + await sandbox.runCommand("npm", ["install", "next@canary"]); + + // Create AGENTS.md at the root + await sandbox.writeFiles({ + "AGENTS.md": ` +# This is NOT the Next.js you know + +This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in \`node_modules/next/dist/docs/\` before writing any code. Heed deprecation notices. + +`, + "CLAUDE.md": "@AGENTS.md\n", + "GEMINI.md": "@AGENTS.md\n", + }); + }, +}; + +export default config; diff --git a/experiments/claude-fable-5.ts b/experiments/claude-fable-5.ts new file mode 100644 index 000000000..b1e2893e2 --- /dev/null +++ b/experiments/claude-fable-5.ts @@ -0,0 +1,20 @@ +import type { ExperimentConfig } from "@vercel/agent-eval"; + +const config: ExperimentConfig = { + agent: "vercel-ai-gateway/claude-code", + model: "claude-fable-5", + agentOptions: { + cliPackage: "@anthropic-ai/claude-code@next", + }, + scripts: ["build"], + runs: 4, + earlyExit: true, + timeout: 1200, + sandbox: "vercel", + setup: async (sandbox) => { + // Bump Next.js to latest canary + await sandbox.runCommand("npm", ["install", "next@canary"]); + }, +}; + +export default config; diff --git a/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/eval.txt b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/eval.txt new file mode 100644 index 000000000..2f2770064 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/eval.txt @@ -0,0 +1,10 @@ + + RUN v3.2.6 /workspace + + ✓ EVAL.ts (6 tests) 4ms + + Test Files 1 passed (1) + Tests 6 passed (6) + Start at 21:29:18 + Duration 212ms (transform 31ms, setup 0ms, collect 30ms, tests 4ms, environment 0ms, prepare 63ms) + diff --git a/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/scripts/build.txt b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/scripts/build.txt new file mode 100644 index 000000000..c7114565d --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/outputs/scripts/build.txt @@ -0,0 +1,26 @@ + +> build +> next build + +▲ Next.js 16.3.0-canary.46 (Turbopack) + + Creating an optimized production build ... +✓ Compiled successfully in 4.5s + Running TypeScript ... + Finished TypeScript in 1843ms ... + Collecting page data using 1 worker ... + Generating static pages using 1 worker (0/4) ... + Generating static pages using 1 worker (1/4) + Generating static pages using 1 worker (2/4) + Generating static pages using 1 worker (3/4) +✓ Generating static pages using 1 worker (4/4) in 222ms + Finalizing page optimization ... + +Route (app) +┌ ○ / +├ ○ /_not-found +└ ○ /about + + +○ (Static) prerendered as static content + diff --git a/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/result.json b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/result.json new file mode 100644 index 000000000..900fd7df9 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T21-26-38.743Z/agent-000-app-router-migration-simple/run-1/result.json @@ -0,0 +1,103 @@ +{ + "status": "passed", + "duration": 249.22, + "model": "claude-fable-5", + "transcriptPath": "./transcript.json", + "transcriptRawPath": "./transcript-raw.jsonl", + "o11y": { + "totalTurns": 6, + "toolCalls": { + "file_read": 5, + "file_write": 3, + "file_edit": 0, + "shell": 14, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 22, + "webFetches": [], + "filesRead": [ + "/workspace/pages/index.tsx", + "/workspace/pages/about.tsx", + "/workspace/pages/_app.tsx", + "/workspace/pages/_document.tsx", + "/workspace/node_modules/next/dist/docs/01-app/02-guides/migrating/app-router-migration.md" + ], + "filesModified": [ + "/workspace/app/layout.tsx", + "/workspace/app/page.tsx", + "/workspace/app/about/page.tsx" + ], + "shellCommands": [ + { + "command": "find /workspace -maxdepth 2 -not -path '*/node_modules*' -not -path '*/.git*' | sort && echo --- && cat /workspace/package.json", + "success": true + }, + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null", + "success": true + }, + { + "command": "find /workspace/node_modules/next/dist/docs/01-app -maxdepth 2 | head -50", + "success": true + }, + { + "command": "ls /workspace/node_modules/next/dist/docs/01-app/02-guides/migrating/ /workspace/node_modules/next/dist/docs/01-app/01-getting-started/", + "success": true + }, + { + "command": "grep -n -i \"deprecat\\|BREAKING\\|no longer\\|removed\" /workspace/node_modules/next/dist/docs/01-app/01-getting-started/03-layouts-and-pages.md /workspace/node_modules/next/dist/docs/01-app/01-getting-started/14-metadata-and-og-images.md | head -30", + "success": true + }, + { + "command": "grep -rn -i \"deprecat\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/03-file-conventions/layout.md /workspace/node_modules/next/dist/docs/01-app/03-api-reference/03-file-conventions/page.md 2>/dev/null | head; ls /workspace/node_modules/next/dist/docs/01-app/03-api-reference/", + "success": true + }, + { + "command": "sed -n 1,120p /workspace/node_modules/next/dist/docs/01-app/01-getting-started/14-metadata-and-og-images.md", + "success": true + }, + { + "command": "grep -n -A 30 \"Root Layout\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/03-file-conventions/layout.md | head -60", + "success": true + }, + { + "command": "sed -n 1,60p /workspace/node_modules/next/dist/docs/01-app/01-getting-started/04-linking-and-navigating.md", + "success": true + }, + { + "command": "rm -rf /workspace/pages && cat /workspace/tsconfig.json /workspace/next.config.ts", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -30", + "success": true + }, + { + "command": "(npm run start &) && sleep 4 && curl -s http://localhost:3000/ | grep -o '[^<]*\\|

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[^<]*

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See the [Node.js documentation](https://nodejs.org/docs/latest-v18.x/api/) for more information.\n18\t\n19\t### Next.js Version\n20\t\n21\tTo update to Next.js version 13, run the following command using your preferred package manager:\n22\t\n23\t```bash package=\"pnpm\"\n24\tpnpm add next@latest react@latest react-dom@latest\n25\t```\n26\t\n27\t```bash package=\"npm\"\n28\tnpm install next@latest react@latest react-dom@latest\n29\t```\n30\t\n31\t```bash package=\"yarn\"\n32\tyarn add next@latest react@latest react-dom@latest\n33\t```\n34\t\n35\t```bash package=\"bun\"\n36\tbun add next@latest react@latest react-dom@latest\n37\t```\n38\t\n39\t### ESLint Version\n40\t\n41\tIf you're using ESLint, you need to upgrade your ESLint version:\n42\t\n43\t```bash package=\"pnpm\"\n44\tpnpm add -D eslint-config-next@latest\n45\t```\n46\t\n47\t```bash package=\"npm\"\n48\tnpm install -D eslint-config-next@latest\n49\t```\n50\t\n51\t```bash package=\"yarn\"\n52\tyarn add -D eslint-config-next@latest\n53\t```\n54\t\n55\t```bash package=\"bun\"\n56\tbun add -D eslint-config-next@latest\n57\t```\n58\t\n59\t> **Good to know**: You may need to restart the ESLint server in VS Code for the ESLint changes to take effect. Open the Command Palette (`cmd+shift+p` on Mac; `ctrl+shift+p` on Windows) and search for `ESLint: Restart ESLint Server`.\n60\t\n61\t## Next Steps\n62\t\n63\tAfter you've updated, see the following sections for next steps:\n64\t\n65\t- [Upgrade new features](#upgrading-new-features): A guide to help you upgrade to new features such as the improved Image and Link Components.\n66\t- [Migrate from the `pages` to `app` directory](#migrating-from-pages-to-app): A step-by-step guide to help you incrementally migrate from the `pages` to the `app` directory.\n67\t\n68\t## Upgrading New Features\n69\t\n70\tNext.js 13 introduced the new [App Router](/docs/app) with new features and conventions. The new Router is available in the `app` directory and co-exists with the `pages` directory.\n71\t\n72\tUpgrading to Next.js 13 does **not** require using the App Router. You can continue using `pages` with new features that work in both directories, such as the updated [Image component](#image-component), [Link component](#link-component), [Script component](#script-component), and [Font optimization](#font-optimization).\n73\t\n74\t### `` Component\n75\t\n76\tNext.js 12 introduced new improvements to the Image Component with a temporary import: `next/future/image`. These improvements included less client-side JavaScript, easier ways to extend and style images, better accessibility, and native browser lazy loading.\n77\t\n78\tIn version 13, this new behavior is now the default for `next/image`.\n79\t\n80\tThere are two codemods to help you migrate to the new Image Component:\n81\t\n82\t- [**`next-image-to-legacy-image` codemod**](/docs/app/guides/upgrading/codemods#next-image-to-legacy-image): Safely and automatically renames `next/image` imports to `next/legacy/image`. Existing components will maintain the same behavior.\n83\t- [**`next-image-experimental` codemod**](/docs/app/guides/upgrading/codemods#next-image-experimental): Dangerously adds inline styles and removes unused props. This will change the behavior of existing components to match the new defaults. To use this codemod, you need to run the `next-image-to-legacy-image` codemod first.\n84\t\n85\t### `` Component\n86\t\n87\tThe [`` Component](/docs/app/api-reference/components/link) no longer requires manually adding an `` tag as a child. This behavior was added as an experimental option in [version 12.2](https://nextjs.org/blog/next-12-2) and is now the default. 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Preferred language: fr-FR,fr;q=0.9\n---\nCurrent theme: light\nCurrent theme: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"light\\\"},\\\"$37\\\",\\\"$7f\\\",1]]},\\\"$37\\\",\\\"$7e\\\",1],[\\\"$\\\",\\\"p\\\",null,{\\\"children\\\":[\\\"Preferred language: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"en-US\\\"},\\\"$37\\\",\\\"$81\\\",1]]},\\\"$37\\\",\\\"$80\\\",1]]},\\\"$37\\\",\\\"$7c\\\",1]\\n\"])","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"bde959e4-4a0b-4d91-a6d3-867a1951a575","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"5673b860-4614-48c9-a028-0064a558e775","isSidechain":false,"message":{"id":"gen_01KTQ8HFW5NC92P7ZKNT2NV8AK","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01X5Mina7sJQ3DkCiBEyxvz3","name":"Bash","input":{"command":"pkill -f \"next dev\" 2>/dev/null; true","description":"Stop the dev server"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":502,"cache_read_input_tokens":41128,"output_tokens":93,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":502},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"60e80b1b-ce8d-411e-bb27-89f9b0a12008","timestamp":"2026-06-09T22:37:41.844Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"60e80b1b-ce8d-411e-bb27-89f9b0a12008","isSidechain":false,"promptId":"20f7425e-64e5-40b9-8f0d-0e1ae708bc23","type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 144","is_error":true,"tool_use_id":"toolu_01X5Mina7sJQ3DkCiBEyxvz3"}]},"uuid":"9d31692c-53b1-4197-8be1-79a96c9a8652","timestamp":"2026-06-09T22:37:41.877Z","toolUseResult":"Error: Exit code 144","sourceToolAssistantUUID":"60e80b1b-ce8d-411e-bb27-89f9b0a12008","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"9d31692c-53b1-4197-8be1-79a96c9a8652","isSidechain":false,"message":{"id":"gen_01KTQ8HKPDQZBTBQ0YGXFSE0ET","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"CAIS5wEKYggOGAIqQHN571DQGhSS/q2/4hbDLo9UqgH1MGmiMAfDhGqlxcVQHs9h7hK0j/vYo2hYNkEubSqTfYsXYL6OC0oApwOqks4yDmNsYXVkZS1mYWJsZS01OAFCCHRoaW5raW5nEgxI62xpQlNQZIw3j1AaDMsIBaY7bTn5l26VTyIw370EqsELlSNJAGKErPL6CCUSjBE8ARWRZnMWsp/fLbrdNzd+dsJt91wXzABuovi9KjMHI1klrEr9nZqhKgMa8FGFNyYRBB7FI9Cy8GKkC//zV/Dg06KfyvlJFZwKmzwYcnlJZMAYAQ=="}],"model":"claude-fable-5","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":110,"cache_read_input_tokens":41630,"output_tokens":362,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":110},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"388585a3-bee6-44a8-9950-bd9024f88095","timestamp":"2026-06-09T22:37:49.414Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"388585a3-bee6-44a8-9950-bd9024f88095","isSidechain":false,"message":{"id":"gen_01KTQ8HKPDQZBTBQ0YGXFSE0ET","type":"message","role":"assistant","content":[{"type":"text","text":"Done and verified. I created a server component at `app/user-preferences.tsx` and rendered it from `app/page.tsx`.\n\nHow it works:\n- It's an async server component using the `cookies()` and `headers()` APIs from `next/headers` — both are async in this Next.js version (16.3 canary), so they must be awaited, per the docs in `node_modules/next/dist/docs/`.\n- The theme comes from `cookieStore.get('theme')?.value`, falling back to `\"light\"` when the cookie is absent.\n- The language comes from the `Accept-Language` request header, falling back to `\"unknown\"` if the header is missing.\n- Since these are request-time APIs, the route is automatically rendered dynamically.\n\nI verified it against a running dev server: a request with `Cookie: theme=dark` and `Accept-Language: fr-FR,fr;q=0.9` rendered \"Current theme: dark / Preferred language: fr-FR,fr;q=0.9\", and a request with no cookie correctly fell back to \"light\". Type-checking passes as well."}],"model":"claude-fable-5","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":110,"cache_read_input_tokens":41630,"output_tokens":362,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":110},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"a5243d83-5621-4796-aa7d-80e50d051b63","timestamp":"2026-06-09T22:37:49.446Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a server component that reads a \"theme\" cookie and displays the current theme preference. If no theme cookie exists, default to \"light\". The component should also show the user's preferred lang…","leafUuid":"a5243d83-5621-4796-aa7d-80e50d051b63","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0"} +{"type":"ai-title","aiTitle":"Server component for theme and language","sessionId":"e4376400-5ac2-41d4-b22e-110a242f39c0"} diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/run-1/transcript.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/run-1/transcript.json new file mode 100644 index 000000000..7ffc3e53a --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/run-1/transcript.json @@ -0,0 +1,771 @@ +{ + "agent": "vercel-ai-gateway/claude-code", + "model": "claude-fable-5", + "events": [ + { + "timestamp": "2026-06-09T22:36:38.274Z", + "type": "message", + "role": "user", + "content": "Create a server component that reads a \"theme\" cookie and displays the current theme preference. If no theme cookie exists, default to \"light\". The component should also show the user's preferred language from the Accept-Language header.\n", + "raw": { + "parentUuid": null, + "isSidechain": false, + "promptId": "20f7425e-64e5-40b9-8f0d-0e1ae708bc23", + "type": "user", + "message": { + "role": "user", + "content": "Create a server component that reads a \"theme\" cookie and displays the current theme preference. If no theme cookie exists, default to \"light\". The component should also show the user's preferred language from the Accept-Language header.\n" + }, + "uuid": "870ef62e-2a9d-48f5-a6dd-81aadbb11352", + "timestamp": "2026-06-09T22:36:38.274Z", + "permissionMode": "bypassPermissions", + "promptSource": "sdk", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:36:42.772Z", + "type": "message", + "role": "assistant", + "content": "I'll first check the project's Next.js docs since this version has breaking changes from what I know.", + "raw": { + "parentUuid": "2a006cb1-8c39-4cd0-8534-742a8fde08d1", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8FNHJ0PNX49AK1E99T7H5", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "I'll first check the project's Next.js docs since this version has breaking changes from what I know." + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 1, + "cache_creation_input_tokens": 5196, + "cache_read_input_tokens": 26816, + "output_tokens": 214, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 5196 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "8113f0df-43a7-4ec3-97fa-ccf8024eb8d4", + "timestamp": "2026-06-09T22:36:42.772Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:36:43.805Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null && cat /workspace/package.json", + "description": "List Next.js docs and show package.json", + "_extractedCommand": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null && cat /workspace/package.json" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null && cat /workspace/package.json", + "description": "List Next.js docs and show package.json" + } + } + }, + { + "timestamp": "2026-06-09T22:36:43.907Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01NhYQcPrjXN3pNDadQCqTRJ", + "result": "01-app\n02-pages\n03-architecture\n04-community\nindex.md\n{\n \"private\": true,\n \"type\": \"module\",\n \"scripts\": {\n \"dev\": \"next dev\",\n \"build\": \"next build\",\n \"start\": \"next start\"\n },\n \"dependencies\": {\n \"next\": \"^16.3.0-canary.46\",\n \"react\": \"19.1.0\",\n \"react-dom\": \"19.1.0\"\n },\n \"devDependencies\": {\n \"@types/node\": \"^20\",\n \"@types/react\": \"^19\",\n \"@types/react-dom\": \"^19\",\n \"@vitejs/plugin-react\": \"^4.4.1\",\n \"typescript\": \"^5\",\n \"vite-tsconfig-paths\": \"^5.1.4\",\n \"vitest\": \"^3.1.3\"\n }\n}", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01NhYQcPrjXN3pNDadQCqTRJ", + "type": "tool_result", + "content": "01-app\n02-pages\n03-architecture\n04-community\nindex.md\n{\n \"private\": true,\n \"type\": \"module\",\n \"scripts\": {\n \"dev\": \"next dev\",\n \"build\": \"next build\",\n \"start\": \"next start\"\n },\n \"dependencies\": {\n \"next\": \"^16.3.0-canary.46\",\n \"react\": \"19.1.0\",\n \"react-dom\": \"19.1.0\"\n },\n \"devDependencies\": {\n \"@types/node\": \"^20\",\n \"@types/react\": \"^19\",\n \"@types/react-dom\": \"^19\",\n \"@vitejs/plugin-react\": \"^4.4.1\",\n \"typescript\": \"^5\",\n \"vite-tsconfig-paths\": \"^5.1.4\",\n \"vitest\": \"^3.1.3\"\n }\n}", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:36:48.357Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "find /workspace/node_modules/next/dist/docs/01-app -iname \"*cookie*\" -o -iname \"*header*\" | head -20", + "description": "Find cookies/headers docs", + "_extractedCommand": "find /workspace/node_modules/next/dist/docs/01-app -iname \"*cookie*\" -o -iname \"*header*\" | head -20" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "find /workspace/node_modules/next/dist/docs/01-app -iname \"*cookie*\" -o -iname \"*header*\" | head -20", + "description": "Find cookies/headers docs" + } + } + }, + { + "timestamp": "2026-06-09T22:36:48.404Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01MHHSscLDhzPtdemkcn585y", + "result": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/headers.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/poweredByHeader.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/reactMaxHeadersLength.md", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01MHHSscLDhzPtdemkcn585y", + "type": "tool_result", + "content": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/headers.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/poweredByHeader.md\n/workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/reactMaxHeadersLength.md", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:36:53.772Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md", + "_extractedPath": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md" + } + } + }, + { + "timestamp": "2026-06-09T22:36:53.778Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01AXLh8YFiJszjBs4Y59YjKw", + "result": "1\t---\n2\ttitle: cookies\n3\tdescription: API Reference for the cookies function.\n4\t---\n5\t\n6\t`cookies` is an **async** function that allows you to read the HTTP incoming request cookies in [Server Components](/docs/app/getting-started/server-and-client-components), and read/write outgoing request cookies in [Server Functions](/docs/app/getting-started/mutating-data) or [Route Handlers](/docs/app/api-reference/file-conventions/route).\n7\t\n8\t```tsx filename=\"app/page.tsx\" switcher\n9\timport { cookies } from 'next/headers'\n10\t\n11\texport default async function Page() {\n12\t const cookieStore = await cookies()\n13\t const theme = cookieStore.get('theme')\n14\t return '...'\n15\t}\n16\t```\n17\t\n18\t```js filename=\"app/page.js\" switcher\n19\timport { cookies } from 'next/headers'\n20\t\n21\texport default async function Page() {\n22\t const cookieStore = await cookies()\n23\t const theme = cookieStore.get('theme')\n24\t return '...'\n25\t}\n26\t```\n27\t\n28\t## Reference\n29\t\n30\t### Methods\n31\t\n32\tThe following methods are available:\n33\t\n34\t| Method | Return Type | Description |\n35\t| --------------------------- | ---------------- | ------------------------------------------------------------------------------- |\n36\t| `get('name')` | Object | Accepts a cookie name and returns an object with the name and value. |\n37\t| `getAll()` | Array of objects | Returns a list of all the cookies with a matching name. |\n38\t| `has('name')` | Boolean | Accepts a cookie name and returns a boolean based on if the cookie exists. |\n39\t| `set(name, value, options)` | - | Accepts a cookie name, value, and options and sets the outgoing request cookie. |\n40\t| `delete(name)` | - | Accepts a cookie name and deletes the cookie. |\n41\t| `toString()` | String | Returns a string representation of the cookies. |\n42\t\n43\t### Options\n44\t\n45\tWhen setting a cookie, the following properties from the `options` object are supported:\n46\t\n47\t| Option | Type | Description |\n48\t| ------------- | -------------------------------------- | ---------------------------------------------------------------------------------- |\n49\t| `name` | String | Specifies the name of the cookie. |\n50\t| `value` | String | Specifies the value to be stored in the cookie. |\n51\t| `expires` | Date | Defines the exact date when the cookie will expire. |\n52\t| `maxAge` | Number | Sets the cookie’s lifespan in seconds. |\n53\t| `domain` | String | Specifies the domain where the cookie is available. |\n54\t| `path` | String, default: `'/'` | Limits the cookie's scope to a specific path within the domain. |\n55\t| `secure` | Boolean | Ensures the cookie is sent only over HTTPS connections for added security. |\n56\t| `httpOnly` | Boolean | Restricts the cookie to HTTP requests, preventing client-side access. |\n57\t| `sameSite` | Boolean, `'lax'`, `'strict'`, `'none'` | Controls the cookie's cross-site request behavior. |\n58\t| `priority` | String (`\"low\"`, `\"medium\"`, `\"high\"`) | Specifies the cookie's priority |\n59\t| `partitioned` | Boolean | Indicates whether the cookie is [partitioned](https://github.com/privacycg/CHIPS). |\n60\t\n61\tThe only option with a default value is `path`.\n62\t\n63\tTo learn more about these options, see the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies).\n64\t\n65\t## Good to know\n66\t\n67\t- `cookies` is an **asynchronous** function that returns a promise. You must use `async/await` or React's [`use`](https://react.dev/reference/react/use) function to access cookies.\n68\t - In version 14 and earlier, `cookies` was a synchronous function. To help with backwards compatibility, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.\n69\t- `cookies` is a [Request-time API](/docs/app/glossary#request-time-apis) whose returned values cannot be known ahead of time. Using it in a layout or page will opt a route into [dynamic rendering](/docs/app/glossary#dynamic-rendering).\n70\t- The `.delete` method can only be called:\n71\t - In a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route).\n72\t - If it belongs to the same domain from which `.set` is called. For wildcard domains, the specific subdomain must be an exact match. Additionally, the code must be executed on the same protocol (HTTP or HTTPS) as the cookie you want to delete.\n73\t- HTTP does not allow setting cookies after streaming starts, so you must use `.set` in a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route).\n74\t\n75\t## Understanding Cookie Behavior in Server Components\n76\t\n77\tWhen working with cookies in Server Components, it's important to understand that cookies are fundamentally a client-side storage mechanism:\n78\t\n79\t- **Reading cookies** works in Server Components because you're accessing the cookie data that the client's browser sends to the server in the HTTP request headers.\n80\t- **Setting cookies** is not supported during Server Component rendering. To modify cookies, invoke a Server Function from the client or use a Route Handler.\n81\t\n82\tThe server can only send instructions (via `Set-Cookie` headers) to tell the browser to store cookies - the actual storage happens on the client side. This is why cookie operations that modify state (`.set`, `.delete`) must be performed in a Server Function or Route Handler where the response headers can be properly set.\n83\t\n84\t## Understanding Cookie Behavior in Server Functions\n85\t\n86\tAfter you set or delete a cookie in a Server Function, Next.js can return both the updated UI and new data in a single server roundtrip when the function is used as a [Server Action](/docs/app/getting-started/mutating-data#what-are-server-functions) (e.g., passed to a form's `action` prop). See [Caching and Revalidating](/docs/app/getting-started/caching).\n87\t\n88\tThe UI is not unmounted, but effects that depend on data coming from the server will re-run.\n89\t\n90\tTo refresh cached data too, call [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) or [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) inside the function.\n91\t\n92\t## Examples\n93\t\n94\t### Getting a cookie\n95\t\n96\tYou can use the `(await cookies()).get('name')` method to get a single cookie:\n97\t\n98\t```tsx filename=\"app/page.tsx\" switcher\n99\timport { cookies } from 'next/headers'\n100\t\n101\texport default async function Page() {\n102\t const cookieStore = await cookies()\n103\t const theme = cookieStore.get('theme')\n104\t return '...'\n105\t}\n106\t```\n107\t\n108\t```jsx filename=\"app/page.js\" switcher\n109\timport { cookies } from 'next/headers'\n110\t\n111\texport default async function Page() {\n112\t const cookieStore = await cookies()\n113\t const theme = cookieStore.get('theme')\n114\t return '...'\n115\t}\n116\t```\n117\t\n118\t### Getting all cookies\n119\t\n120\tYou can use the `(await cookies()).getAll()` method to get all cookies with a matching name. If `name` is unspecified, it returns all the available cookies.\n121\t\n122\t```tsx filename=\"app/page.tsx\" switcher\n123\timport { cookies } from 'next/headers'\n124\t\n125\texport default async function Page() {\n126\t const cookieStore = await cookies()\n127\t return cookieStore.getAll().map((cookie) => (\n128\t

\n129\t

Name: {cookie.name}

\n130\t

Value: {cookie.value}

\n131\t
\n132\t ))\n133\t}\n134\t```\n135\t\n136\t```jsx filename=\"app/page.js\" switcher\n137\timport { cookies } from 'next/headers'\n138\t\n139\texport default async function Page() {\n140\t const cookieStore = await cookies()\n141\t return cookieStore.getAll().map((cookie) => (\n142\t
\n143\t

Name: {cookie.name}

\n144\t

Value: {cookie.value}

\n145\t
\n146\t ))\n147\t}\n148\t```\n149\t\n150\t### Setting a cookie\n151\t\n152\tYou can use the `(await cookies()).set(name, value, options)` method in a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route) to set a cookie. The [`options` object](#options) is optional.\n153\t\n154\t```tsx filename=\"app/actions.ts\" switcher\n155\t'use server'\n156\t\n157\timport { cookies } from 'next/headers'\n158\t\n159\texport async function create(data) {\n160\t const cookieStore = await cookies()\n161\t\n162\t cookieStore.set('name', 'lee')\n163\t // or\n164\t cookieStore.set('name', 'lee', { secure: true })\n165\t // or\n166\t cookieStore.set({\n167\t name: 'name',\n168\t value: 'lee',\n169\t httpOnly: true,\n170\t path: '/',\n171\t })\n172\t}\n173\t```\n174\t\n175\t```js filename=\"app/actions.js\" switcher\n176\t'use server'\n177\t\n178\timport { cookies } from 'next/headers'\n179\t\n180\texport async function create(data) {\n181\t const cookieStore = await cookies()\n182\t\n183\t cookieStore.set('name', 'lee')\n184\t // or\n185\t cookieStore.set('name', 'lee', { secure: true })\n186\t // or\n187\t cookieStore.set({\n188\t name: 'name',\n189\t value: 'lee',\n190\t httpOnly: true,\n191\t path: '/',\n192\t })\n193\t}\n194\t```\n195\t\n196\t### Checking if a cookie exists\n197\t\n198\tYou can use the `(await cookies()).has(name)` method to check if a cookie exists:\n199\t\n200\t```tsx filename=\"app/page.ts\" switcher\n201\timport { cookies } from 'next/headers'\n202\t\n203\texport default async function Page() {\n204\t const cookieStore = await cookies()\n205\t const hasCookie = cookieStore.has('theme')\n206\t return '...'\n207\t}\n208\t```\n209\t\n210\t```jsx filename=\"app/page.js\" switcher\n211\timport { cookies } from 'next/headers'\n212\t\n213\texport default async function Page() {\n214\t const cookieStore = await cookies()\n215\t const hasCookie = cookieStore.has('theme')\n216\t return '...'\n217\t}\n218\t```\n219\t\n220\t### Deleting cookies\n221\t\n222\tThere are three ways you can delete a cookie.\n223\t\n224\tUsing the `delete()` method:\n225\t\n226\t```tsx filename=\"app/actions.ts\" switcher\n227\t'use server'\n228\t\n229\timport { cookies } from 'next/headers'\n230\t\n231\texport async function deleteCookie(data) {\n232\t const cookieStore = await cookies()\n233\t cookieStore.delete('name')\n234\t}\n235\t```\n236\t\n237\t```js filename=\"app/actions.js\" switcher\n238\t'use server'\n239\t\n240\timport { cookies } from 'next/headers'\n241\t\n242\texport async function deleteCookie(data) {\n243\t const cookieStore = await cookies()\n244\t cookieStore.delete('name')\n245\t}\n246\t```\n247\t\n248\tSetting a new cookie with the same name and an empty value:\n249\t\n250\t```tsx filename=\"app/actions.ts\" switcher\n251\t'use server'\n252\t\n253\timport { cookies } from 'next/headers'\n254\t\n255\texport async function deleteCookie(data) {\n256\t const cookieStore = await cookies()\n257\t cookieStore.set('name', '')\n258\t}\n259\t```\n260\t\n261\t```js filename=\"app/actions.js\" switcher\n262\t'use server'\n263\t\n264\timport { cookies } from 'next/headers'\n265\t\n266\texport async function deleteCookie(data) {\n267\t const cookieStore = await cookies()\n268\t cookieStore.set('name', '')\n269\t}\n270\t```\n271\t\n272\tSetting the `maxAge` to 0 will immediately expire a cookie. `maxAge` accepts a value in seconds.\n273\t\n274\t```tsx filename=\"app/actions.ts\" switcher\n275\t'use server'\n276\t\n277\timport { cookies } from 'next/headers'\n278\t\n279\texport async function deleteCookie(data) {\n280\t const cookieStore = await cookies()\n281\t cookieStore.set('name', 'value', { maxAge: 0 })\n282\t}\n283\t```\n284\t\n285\t```js filename=\"app/actions.js\" switcher\n286\t'use server'\n287\t\n288\timport { cookies } from 'next/headers'\n289\t\n290\texport async function deleteCookie(data) {\n291\t const cookieStore = await cookies()\n292\t cookieStore.set('name', 'value', { maxAge: 0 })\n293\t}\n294\t```\n295\t\n296\t## Version History\n297\t\n298\t| Version | Changes |\n299\t| ------------ | ------------------------------------------------------------------------------------------------------ |\n300\t| `v15.0.0-RC` | `cookies` is now an async function. A [codemod](/docs/app/guides/upgrading/codemods#150) is available. |\n301\t| `v13.0.0` | `cookies` introduced. |\n302\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01AXLh8YFiJszjBs4Y59YjKw", + "type": "tool_result", + "content": "1\t---\n2\ttitle: cookies\n3\tdescription: API Reference for the cookies function.\n4\t---\n5\t\n6\t`cookies` is an **async** function that allows you to read the HTTP incoming request cookies in [Server Components](/docs/app/getting-started/server-and-client-components), and read/write outgoing request cookies in [Server Functions](/docs/app/getting-started/mutating-data) or [Route Handlers](/docs/app/api-reference/file-conventions/route).\n7\t\n8\t```tsx filename=\"app/page.tsx\" switcher\n9\timport { cookies } from 'next/headers'\n10\t\n11\texport default async function Page() {\n12\t const cookieStore = await cookies()\n13\t const theme = cookieStore.get('theme')\n14\t return '...'\n15\t}\n16\t```\n17\t\n18\t```js filename=\"app/page.js\" switcher\n19\timport { cookies } from 'next/headers'\n20\t\n21\texport default async function Page() {\n22\t const cookieStore = await cookies()\n23\t const theme = cookieStore.get('theme')\n24\t return '...'\n25\t}\n26\t```\n27\t\n28\t## Reference\n29\t\n30\t### Methods\n31\t\n32\tThe following methods are available:\n33\t\n34\t| Method | Return Type | Description |\n35\t| --------------------------- | ---------------- | ------------------------------------------------------------------------------- |\n36\t| `get('name')` | Object | Accepts a cookie name and returns an object with the name and value. |\n37\t| `getAll()` | Array of objects | Returns a list of all the cookies with a matching name. |\n38\t| `has('name')` | Boolean | Accepts a cookie name and returns a boolean based on if the cookie exists. |\n39\t| `set(name, value, options)` | - | Accepts a cookie name, value, and options and sets the outgoing request cookie. |\n40\t| `delete(name)` | - | Accepts a cookie name and deletes the cookie. |\n41\t| `toString()` | String | Returns a string representation of the cookies. |\n42\t\n43\t### Options\n44\t\n45\tWhen setting a cookie, the following properties from the `options` object are supported:\n46\t\n47\t| Option | Type | Description |\n48\t| ------------- | -------------------------------------- | ---------------------------------------------------------------------------------- |\n49\t| `name` | String | Specifies the name of the cookie. |\n50\t| `value` | String | Specifies the value to be stored in the cookie. |\n51\t| `expires` | Date | Defines the exact date when the cookie will expire. |\n52\t| `maxAge` | Number | Sets the cookie’s lifespan in seconds. |\n53\t| `domain` | String | Specifies the domain where the cookie is available. |\n54\t| `path` | String, default: `'/'` | Limits the cookie's scope to a specific path within the domain. |\n55\t| `secure` | Boolean | Ensures the cookie is sent only over HTTPS connections for added security. |\n56\t| `httpOnly` | Boolean | Restricts the cookie to HTTP requests, preventing client-side access. |\n57\t| `sameSite` | Boolean, `'lax'`, `'strict'`, `'none'` | Controls the cookie's cross-site request behavior. |\n58\t| `priority` | String (`\"low\"`, `\"medium\"`, `\"high\"`) | Specifies the cookie's priority |\n59\t| `partitioned` | Boolean | Indicates whether the cookie is [partitioned](https://github.com/privacycg/CHIPS). |\n60\t\n61\tThe only option with a default value is `path`.\n62\t\n63\tTo learn more about these options, see the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies).\n64\t\n65\t## Good to know\n66\t\n67\t- `cookies` is an **asynchronous** function that returns a promise. You must use `async/await` or React's [`use`](https://react.dev/reference/react/use) function to access cookies.\n68\t - In version 14 and earlier, `cookies` was a synchronous function. To help with backwards compatibility, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.\n69\t- `cookies` is a [Request-time API](/docs/app/glossary#request-time-apis) whose returned values cannot be known ahead of time. Using it in a layout or page will opt a route into [dynamic rendering](/docs/app/glossary#dynamic-rendering).\n70\t- The `.delete` method can only be called:\n71\t - In a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route).\n72\t - If it belongs to the same domain from which `.set` is called. For wildcard domains, the specific subdomain must be an exact match. Additionally, the code must be executed on the same protocol (HTTP or HTTPS) as the cookie you want to delete.\n73\t- HTTP does not allow setting cookies after streaming starts, so you must use `.set` in a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route).\n74\t\n75\t## Understanding Cookie Behavior in Server Components\n76\t\n77\tWhen working with cookies in Server Components, it's important to understand that cookies are fundamentally a client-side storage mechanism:\n78\t\n79\t- **Reading cookies** works in Server Components because you're accessing the cookie data that the client's browser sends to the server in the HTTP request headers.\n80\t- **Setting cookies** is not supported during Server Component rendering. To modify cookies, invoke a Server Function from the client or use a Route Handler.\n81\t\n82\tThe server can only send instructions (via `Set-Cookie` headers) to tell the browser to store cookies - the actual storage happens on the client side. This is why cookie operations that modify state (`.set`, `.delete`) must be performed in a Server Function or Route Handler where the response headers can be properly set.\n83\t\n84\t## Understanding Cookie Behavior in Server Functions\n85\t\n86\tAfter you set or delete a cookie in a Server Function, Next.js can return both the updated UI and new data in a single server roundtrip when the function is used as a [Server Action](/docs/app/getting-started/mutating-data#what-are-server-functions) (e.g., passed to a form's `action` prop). See [Caching and Revalidating](/docs/app/getting-started/caching).\n87\t\n88\tThe UI is not unmounted, but effects that depend on data coming from the server will re-run.\n89\t\n90\tTo refresh cached data too, call [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) or [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) inside the function.\n91\t\n92\t## Examples\n93\t\n94\t### Getting a cookie\n95\t\n96\tYou can use the `(await cookies()).get('name')` method to get a single cookie:\n97\t\n98\t```tsx filename=\"app/page.tsx\" switcher\n99\timport { cookies } from 'next/headers'\n100\t\n101\texport default async function Page() {\n102\t const cookieStore = await cookies()\n103\t const theme = cookieStore.get('theme')\n104\t return '...'\n105\t}\n106\t```\n107\t\n108\t```jsx filename=\"app/page.js\" switcher\n109\timport { cookies } from 'next/headers'\n110\t\n111\texport default async function Page() {\n112\t const cookieStore = await cookies()\n113\t const theme = cookieStore.get('theme')\n114\t return '...'\n115\t}\n116\t```\n117\t\n118\t### Getting all cookies\n119\t\n120\tYou can use the `(await cookies()).getAll()` method to get all cookies with a matching name. If `name` is unspecified, it returns all the available cookies.\n121\t\n122\t```tsx filename=\"app/page.tsx\" switcher\n123\timport { cookies } from 'next/headers'\n124\t\n125\texport default async function Page() {\n126\t const cookieStore = await cookies()\n127\t return cookieStore.getAll().map((cookie) => (\n128\t
\n129\t

Name: {cookie.name}

\n130\t

Value: {cookie.value}

\n131\t
\n132\t ))\n133\t}\n134\t```\n135\t\n136\t```jsx filename=\"app/page.js\" switcher\n137\timport { cookies } from 'next/headers'\n138\t\n139\texport default async function Page() {\n140\t const cookieStore = await cookies()\n141\t return cookieStore.getAll().map((cookie) => (\n142\t
\n143\t

Name: {cookie.name}

\n144\t

Value: {cookie.value}

\n145\t
\n146\t ))\n147\t}\n148\t```\n149\t\n150\t### Setting a cookie\n151\t\n152\tYou can use the `(await cookies()).set(name, value, options)` method in a [Server Function](/docs/app/getting-started/mutating-data) or [Route Handler](/docs/app/api-reference/file-conventions/route) to set a cookie. The [`options` object](#options) is optional.\n153\t\n154\t```tsx filename=\"app/actions.ts\" switcher\n155\t'use server'\n156\t\n157\timport { cookies } from 'next/headers'\n158\t\n159\texport async function create(data) {\n160\t const cookieStore = await cookies()\n161\t\n162\t cookieStore.set('name', 'lee')\n163\t // or\n164\t cookieStore.set('name', 'lee', { secure: true })\n165\t // or\n166\t cookieStore.set({\n167\t name: 'name',\n168\t value: 'lee',\n169\t httpOnly: true,\n170\t path: '/',\n171\t })\n172\t}\n173\t```\n174\t\n175\t```js filename=\"app/actions.js\" switcher\n176\t'use server'\n177\t\n178\timport { cookies } from 'next/headers'\n179\t\n180\texport async function create(data) {\n181\t const cookieStore = await cookies()\n182\t\n183\t cookieStore.set('name', 'lee')\n184\t // or\n185\t cookieStore.set('name', 'lee', { secure: true })\n186\t // or\n187\t cookieStore.set({\n188\t name: 'name',\n189\t value: 'lee',\n190\t httpOnly: true,\n191\t path: '/',\n192\t })\n193\t}\n194\t```\n195\t\n196\t### Checking if a cookie exists\n197\t\n198\tYou can use the `(await cookies()).has(name)` method to check if a cookie exists:\n199\t\n200\t```tsx filename=\"app/page.ts\" switcher\n201\timport { cookies } from 'next/headers'\n202\t\n203\texport default async function Page() {\n204\t const cookieStore = await cookies()\n205\t const hasCookie = cookieStore.has('theme')\n206\t return '...'\n207\t}\n208\t```\n209\t\n210\t```jsx filename=\"app/page.js\" switcher\n211\timport { cookies } from 'next/headers'\n212\t\n213\texport default async function Page() {\n214\t const cookieStore = await cookies()\n215\t const hasCookie = cookieStore.has('theme')\n216\t return '...'\n217\t}\n218\t```\n219\t\n220\t### Deleting cookies\n221\t\n222\tThere are three ways you can delete a cookie.\n223\t\n224\tUsing the `delete()` method:\n225\t\n226\t```tsx filename=\"app/actions.ts\" switcher\n227\t'use server'\n228\t\n229\timport { cookies } from 'next/headers'\n230\t\n231\texport async function deleteCookie(data) {\n232\t const cookieStore = await cookies()\n233\t cookieStore.delete('name')\n234\t}\n235\t```\n236\t\n237\t```js filename=\"app/actions.js\" switcher\n238\t'use server'\n239\t\n240\timport { cookies } from 'next/headers'\n241\t\n242\texport async function deleteCookie(data) {\n243\t const cookieStore = await cookies()\n244\t cookieStore.delete('name')\n245\t}\n246\t```\n247\t\n248\tSetting a new cookie with the same name and an empty value:\n249\t\n250\t```tsx filename=\"app/actions.ts\" switcher\n251\t'use server'\n252\t\n253\timport { cookies } from 'next/headers'\n254\t\n255\texport async function deleteCookie(data) {\n256\t const cookieStore = await cookies()\n257\t cookieStore.set('name', '')\n258\t}\n259\t```\n260\t\n261\t```js filename=\"app/actions.js\" switcher\n262\t'use server'\n263\t\n264\timport { cookies } from 'next/headers'\n265\t\n266\texport async function deleteCookie(data) {\n267\t const cookieStore = await cookies()\n268\t cookieStore.set('name', '')\n269\t}\n270\t```\n271\t\n272\tSetting the `maxAge` to 0 will immediately expire a cookie. `maxAge` accepts a value in seconds.\n273\t\n274\t```tsx filename=\"app/actions.ts\" switcher\n275\t'use server'\n276\t\n277\timport { cookies } from 'next/headers'\n278\t\n279\texport async function deleteCookie(data) {\n280\t const cookieStore = await cookies()\n281\t cookieStore.set('name', 'value', { maxAge: 0 })\n282\t}\n283\t```\n284\t\n285\t```js filename=\"app/actions.js\" switcher\n286\t'use server'\n287\t\n288\timport { cookies } from 'next/headers'\n289\t\n290\texport async function deleteCookie(data) {\n291\t const cookieStore = await cookies()\n292\t cookieStore.set('name', 'value', { maxAge: 0 })\n293\t}\n294\t```\n295\t\n296\t## Version History\n297\t\n298\t| Version | Changes |\n299\t| ------------ | ------------------------------------------------------------------------------------------------------ |\n300\t| `v15.0.0-RC` | `cookies` is now an async function. A [codemod](/docs/app/guides/upgrading/codemods#150) is available. |\n301\t| `v13.0.0` | `cookies` introduced. |\n302\t" + } + }, + { + "timestamp": "2026-06-09T22:36:54.396Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md", + "_extractedPath": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md" + } + } + }, + { + "timestamp": "2026-06-09T22:36:54.399Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01Mh5odUeyRhfNd3gRS6LHyq", + "result": "1\t---\n2\ttitle: headers\n3\tdescription: API reference for the headers function.\n4\t---\n5\t\n6\t`headers` is an **async** function that allows you to **read** the HTTP incoming request headers from a [Server Component](/docs/app/getting-started/server-and-client-components).\n7\t\n8\t```tsx filename=\"app/page.tsx\" switcher\n9\timport { headers } from 'next/headers'\n10\t\n11\texport default async function Page() {\n12\t const headersList = await headers()\n13\t const userAgent = headersList.get('user-agent')\n14\t}\n15\t```\n16\t\n17\t```jsx filename=\"app/page.js\" switcher\n18\timport { headers } from 'next/headers'\n19\t\n20\texport default async function Page() {\n21\t const headersList = await headers()\n22\t const userAgent = headersList.get('user-agent')\n23\t}\n24\t```\n25\t\n26\t## Reference\n27\t\n28\t### Parameters\n29\t\n30\t`headers` does not take any parameters.\n31\t\n32\t### Returns\n33\t\n34\t`headers` returns a **read-only** [Web Headers](https://developer.mozilla.org/docs/Web/API/Headers) object.\n35\t\n36\t- [`Headers.entries()`](https://developer.mozilla.org/docs/Web/API/Headers/entries): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing to go through all key/value pairs contained in this object.\n37\t- [`Headers.forEach()`](https://developer.mozilla.org/docs/Web/API/Headers/forEach): Executes a provided function once for each key/value pair in this `Headers` object.\n38\t- [`Headers.get()`](https://developer.mozilla.org/docs/Web/API/Headers/get): Returns a [`String`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) sequence of all the values of a header within a `Headers` object with a given name.\n39\t- [`Headers.has()`](https://developer.mozilla.org/docs/Web/API/Headers/has): Returns a boolean stating whether a `Headers` object contains a certain header.\n40\t- [`Headers.keys()`](https://developer.mozilla.org/docs/Web/API/Headers/keys): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing you to go through all keys of the key/value pairs contained in this object.\n41\t- [`Headers.values()`](https://developer.mozilla.org/docs/Web/API/Headers/values): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing you to go through all values of the key/value pairs contained in this object.\n42\t\n43\t## Good to know\n44\t\n45\t- `headers` is an **asynchronous** function that returns a promise. You must use `async/await` or React's [`use`](https://react.dev/reference/react/use) function.\n46\t - In version 14 and earlier, `headers` was a synchronous function. To help with backwards compatibility, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.\n47\t- Since `headers` is read-only, you cannot `set` or `delete` the outgoing request headers.\n48\t- `headers` is a [Request-time API](/docs/app/glossary#request-time-apis) whose returned values cannot be known ahead of time. Using it in will opt a route into **[dynamic rendering](/docs/app/glossary#dynamic-rendering)**.\n49\t\n50\t## Examples\n51\t\n52\t### Using the Authorization header\n53\t\n54\t```jsx filename=\"app/page.js\"\n55\timport { headers } from 'next/headers'\n56\t\n57\texport default async function Page() {\n58\t const authorization = (await headers()).get('authorization')\n59\t const res = await fetch('...', {\n60\t headers: { authorization }, // Forward the authorization header\n61\t })\n62\t const user = await res.json()\n63\t\n64\t return

{user.name}

\n65\t}\n66\t```\n67\t\n68\t## Version History\n69\t\n70\t| Version | Changes |\n71\t| ------------ | ------------------------------------------------------------------------------------------------------ |\n72\t| `v15.0.0-RC` | `headers` is now an async function. A [codemod](/docs/app/guides/upgrading/codemods#150) is available. |\n73\t| `v13.0.0` | `headers` introduced. |\n74\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01Mh5odUeyRhfNd3gRS6LHyq", + "type": "tool_result", + "content": "1\t---\n2\ttitle: headers\n3\tdescription: API reference for the headers function.\n4\t---\n5\t\n6\t`headers` is an **async** function that allows you to **read** the HTTP incoming request headers from a [Server Component](/docs/app/getting-started/server-and-client-components).\n7\t\n8\t```tsx filename=\"app/page.tsx\" switcher\n9\timport { headers } from 'next/headers'\n10\t\n11\texport default async function Page() {\n12\t const headersList = await headers()\n13\t const userAgent = headersList.get('user-agent')\n14\t}\n15\t```\n16\t\n17\t```jsx filename=\"app/page.js\" switcher\n18\timport { headers } from 'next/headers'\n19\t\n20\texport default async function Page() {\n21\t const headersList = await headers()\n22\t const userAgent = headersList.get('user-agent')\n23\t}\n24\t```\n25\t\n26\t## Reference\n27\t\n28\t### Parameters\n29\t\n30\t`headers` does not take any parameters.\n31\t\n32\t### Returns\n33\t\n34\t`headers` returns a **read-only** [Web Headers](https://developer.mozilla.org/docs/Web/API/Headers) object.\n35\t\n36\t- [`Headers.entries()`](https://developer.mozilla.org/docs/Web/API/Headers/entries): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing to go through all key/value pairs contained in this object.\n37\t- [`Headers.forEach()`](https://developer.mozilla.org/docs/Web/API/Headers/forEach): Executes a provided function once for each key/value pair in this `Headers` object.\n38\t- [`Headers.get()`](https://developer.mozilla.org/docs/Web/API/Headers/get): Returns a [`String`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) sequence of all the values of a header within a `Headers` object with a given name.\n39\t- [`Headers.has()`](https://developer.mozilla.org/docs/Web/API/Headers/has): Returns a boolean stating whether a `Headers` object contains a certain header.\n40\t- [`Headers.keys()`](https://developer.mozilla.org/docs/Web/API/Headers/keys): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing you to go through all keys of the key/value pairs contained in this object.\n41\t- [`Headers.values()`](https://developer.mozilla.org/docs/Web/API/Headers/values): Returns an [`iterator`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols) allowing you to go through all values of the key/value pairs contained in this object.\n42\t\n43\t## Good to know\n44\t\n45\t- `headers` is an **asynchronous** function that returns a promise. You must use `async/await` or React's [`use`](https://react.dev/reference/react/use) function.\n46\t - In version 14 and earlier, `headers` was a synchronous function. To help with backwards compatibility, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.\n47\t- Since `headers` is read-only, you cannot `set` or `delete` the outgoing request headers.\n48\t- `headers` is a [Request-time API](/docs/app/glossary#request-time-apis) whose returned values cannot be known ahead of time. Using it in will opt a route into **[dynamic rendering](/docs/app/glossary#dynamic-rendering)**.\n49\t\n50\t## Examples\n51\t\n52\t### Using the Authorization header\n53\t\n54\t```jsx filename=\"app/page.js\"\n55\timport { headers } from 'next/headers'\n56\t\n57\texport default async function Page() {\n58\t const authorization = (await headers()).get('authorization')\n59\t const res = await fetch('...', {\n60\t headers: { authorization }, // Forward the authorization header\n61\t })\n62\t const user = await res.json()\n63\t\n64\t return

{user.name}

\n65\t}\n66\t```\n67\t\n68\t## Version History\n69\t\n70\t| Version | Changes |\n71\t| ------------ | ------------------------------------------------------------------------------------------------------ |\n72\t| `v15.0.0-RC` | `headers` is now an async function. A [codemod](/docs/app/guides/upgrading/codemods#150) is available. |\n73\t| `v13.0.0` | `headers` introduced. |\n74\t" + } + }, + { + "timestamp": "2026-06-09T22:36:59.657Z", + "type": "message", + "role": "assistant", + "content": "The APIs match: in this version both `cookies()` and `headers()` are async functions from `next/headers`. Let me check the project structure.", + "raw": { + "parentUuid": "829a9626-1327-4f90-b084-72813f7234c8", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8G5F9FB0ED8PF735T7JXQ", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "The APIs match: in this version both `cookies()` and `headers()` are async functions from `next/headers`. Let me check the project structure." + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 6549, + "cache_read_input_tokens": 32849, + "output_tokens": 245, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 6549 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "451ca999-5586-4334-9834-5b271273fc5d", + "timestamp": "2026-06-09T22:36:59.657Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:37:00.248Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "ls -R /workspace --ignore=node_modules --ignore=.git -I '.claude' 2>/dev/null | head -30", + "description": "Show project structure", + "_extractedCommand": "ls -R /workspace --ignore=node_modules --ignore=.git -I '.claude' 2>/dev/null | head -30" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "ls -R /workspace --ignore=node_modules --ignore=.git -I '.claude' 2>/dev/null | head -30", + "description": "Show project structure" + } + } + }, + { + "timestamp": "2026-06-09T22:37:00.295Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01UPDEZRSKSa1ruWtPRiMcdh", + "result": "/workspace:\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\npackage-lock.json\npackage.json\ntsconfig.json\n\n/workspace/app:\nlayout.tsx\npage.tsx", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01UPDEZRSKSa1ruWtPRiMcdh", + "type": "tool_result", + "content": "/workspace:\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\npackage-lock.json\npackage.json\ntsconfig.json\n\n/workspace/app:\nlayout.tsx\npage.tsx", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:37:05.498Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/app/page.tsx", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/app/page.tsx" + } + } + }, + { + "timestamp": "2026-06-09T22:37:05.502Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_0149cRTTLk1cTcXJ1BzCBeWV", + "result": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

User Preferences

\n5\t

Please implement the theme and language display here.

\n6\t
\n7\t )\n8\t}\n9\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_0149cRTTLk1cTcXJ1BzCBeWV", + "type": "tool_result", + "content": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

User Preferences

\n5\t

Please implement the theme and language display here.

\n6\t
\n7\t )\n8\t}\n9\t" + } + }, + { + "timestamp": "2026-06-09T22:37:05.511Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/app/layout.tsx", + "_extractedPath": "/workspace/app/layout.tsx" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/app/layout.tsx" + } + } + }, + { + "timestamp": "2026-06-09T22:37:05.515Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01WNGKsi6nDDvcurbibr9dJX", + "result": "1\timport type { Metadata } from 'next'\n2\t\n3\texport const metadata: Metadata = {\n4\t title: 'Theme Settings',\n5\t description: 'Display user theme and language preferences',\n6\t}\n7\t\n8\texport default function RootLayout({\n9\t children,\n10\t}: Readonly<{\n11\t children: React.ReactNode\n12\t}>) {\n13\t return (\n14\t \n15\t {children}\n16\t \n17\t )\n18\t}\n19\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01WNGKsi6nDDvcurbibr9dJX", + "type": "tool_result", + "content": "1\timport type { Metadata } from 'next'\n2\t\n3\texport const metadata: Metadata = {\n4\t title: 'Theme Settings',\n5\t description: 'Display user theme and language preferences',\n6\t}\n7\t\n8\texport default function RootLayout({\n9\t children,\n10\t}: Readonly<{\n11\t children: React.ReactNode\n12\t}>) {\n13\t return (\n14\t \n15\t {children}\n16\t \n17\t )\n18\t}\n19\t" + } + }, + { + "timestamp": "2026-06-09T22:37:10.176Z", + "type": "message", + "role": "assistant", + "content": "Now I'll create the server component and render it on the page.", + "raw": { + "parentUuid": "cc46e685-51c7-4314-b822-d49c700fc687", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8GG51DS7Z8AC0G2K5Z660", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Now I'll create the server component and render it on the page." + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 422, + "cache_read_input_tokens": 39727, + "output_tokens": 373, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 422 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "e5f3a8ab-fb0e-403f-a82c-e4985eaa9bb7", + "timestamp": "2026-06-09T22:37:10.176Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:37:12.135Z", + "type": "tool_call", + "tool": { + "name": "file_write", + "originalName": "Write", + "args": { + "file_path": "/workspace/app/user-preferences.tsx", + "content": "import { cookies, headers } from 'next/headers'\n\nexport default async function UserPreferences() {\n const cookieStore = await cookies()\n const theme = cookieStore.get('theme')?.value ?? 'light'\n\n const headersList = await headers()\n const language = headersList.get('accept-language') ?? 'unknown'\n\n return (\n
\n

\n Current theme: {theme}\n

\n

\n Preferred language: {language}\n

\n
\n )\n}\n", + "_extractedPath": "/workspace/app/user-preferences.tsx" + } + }, + "raw": { + "name": "Write", + "input": { + "file_path": "/workspace/app/user-preferences.tsx", + "content": "import { cookies, headers } from 'next/headers'\n\nexport default async function UserPreferences() {\n const cookieStore = await cookies()\n const theme = cookieStore.get('theme')?.value ?? 'light'\n\n const headersList = await headers()\n const language = headersList.get('accept-language') ?? 'unknown'\n\n return (\n
\n

\n Current theme: {theme}\n

\n

\n Preferred language: {language}\n

\n
\n )\n}\n" + } + } + }, + { + "timestamp": "2026-06-09T22:37:12.142Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01TNHE2Tzr1kTCsMraRUitco", + "result": "File created successfully at: /workspace/app/user-preferences.tsx (file state is current in your context — no need to Read it back)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01TNHE2Tzr1kTCsMraRUitco", + "type": "tool_result", + "content": "File created successfully at: /workspace/app/user-preferences.tsx (file state is current in your context — no need to Read it back)" + } + }, + { + "timestamp": "2026-06-09T22:37:16.907Z", + "type": "tool_call", + "tool": { + "name": "file_edit", + "originalName": "Edit", + "args": { + "replace_all": false, + "file_path": "/workspace/app/page.tsx", + "old_string": "export default function Home() {\n return (\n
\n

User Preferences

\n

Please implement the theme and language display here.

\n
\n )\n}", + "new_string": "import UserPreferences from './user-preferences'\n\nexport default function Home() {\n return (\n
\n

User Preferences

\n \n
\n )\n}", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Edit", + "input": { + "replace_all": false, + "file_path": "/workspace/app/page.tsx", + "old_string": "export default function Home() {\n return (\n
\n

User Preferences

\n

Please implement the theme and language display here.

\n
\n )\n}", + "new_string": "import UserPreferences from './user-preferences'\n\nexport default function Home() {\n return (\n
\n

User Preferences

\n \n
\n )\n}" + } + } + }, + { + "timestamp": "2026-06-09T22:37:16.913Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01SDzVajbkV39UvsawSKfkqY", + "result": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01SDzVajbkV39UvsawSKfkqY", + "type": "tool_result", + "content": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)" + } + }, + { + "timestamp": "2026-06-09T22:37:21.035Z", + "type": "message", + "role": "assistant", + "content": "Let me verify it works by building and hitting the dev server with a theme cookie.", + "raw": { + "parentUuid": "8756b0e9-5145-47c0-b238-8afde31d0d5f", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8GVB1GA7Z1HDGX5CZGFM1", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Let me verify it works by building and hitting the dev server with a theme cookie." + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 300, + "cache_read_input_tokens": 40695, + "output_tokens": 125, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 300 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "792f4879-cf39-46b2-86fd-8cf8e0c3d484", + "timestamp": "2026-06-09T22:37:21.035Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:37:21.222Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "npx tsc --noEmit 2>&1 | head -20", + "description": "Type-check the project", + "_extractedCommand": "npx tsc --noEmit 2>&1 | head -20" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "npx tsc --noEmit 2>&1 | head -20", + "description": "Type-check the project" + } + } + }, + { + "timestamp": "2026-06-09T22:37:23.112Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01QoUw8sSDKUrFAxc4iAhJeJ", + "result": "(Bash completed with no output)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01QoUw8sSDKUrFAxc4iAhJeJ", + "type": "tool_result", + "content": "(Bash completed with no output)", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:37:28.077Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "(npm run dev > /tmp/dev.log 2>&1 &) && sleep 8 && curl -s -H 'Cookie: theme=dark' -H 'Accept-Language: fr-FR,fr;q=0.9' http://localhost:3000 | grep -o 'Current theme:.*language[^<]*[^<]*' ; echo '---'; curl -s -H 'Accept-Language: en-US' http://localhost:3000 | grep -o 'Current theme:[^<]*<[^>]*>[^<]*'", + "description": "Start dev server and test with/without theme cookie", + "_extractedCommand": "(npm run dev > /tmp/dev.log 2>&1 &) && sleep 8 && curl -s -H 'Cookie: theme=dark' -H 'Accept-Language: fr-FR,fr;q=0.9' http://localhost:3000 | grep -o 'Current theme:.*language[^<]*[^<]*' ; echo '---'; curl -s -H 'Accept-Language: en-US' http://localhost:3000 | grep -o 'Current theme:[^<]*<[^>]*>[^<]*'" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "(npm run dev > /tmp/dev.log 2>&1 &) && sleep 8 && curl -s -H 'Cookie: theme=dark' -H 'Accept-Language: fr-FR,fr;q=0.9' http://localhost:3000 | grep -o 'Current theme:.*language[^<]*[^<]*' ; echo '---'; curl -s -H 'Accept-Language: en-US' http://localhost:3000 | grep -o 'Current theme:[^<]*<[^>]*>[^<]*'", + "description": "Start dev server and test with/without theme cookie" + } + } + }, + { + "timestamp": "2026-06-09T22:37:38.021Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01SpNHo44dxJvpgxWn5Rs8gT", + "result": "Current theme: dark

Preferred language: fr-FR,fr;q=0.9\n---\nCurrent theme: light\nCurrent theme: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"light\\\"},\\\"$37\\\",\\\"$7f\\\",1]]},\\\"$37\\\",\\\"$7e\\\",1],[\\\"$\\\",\\\"p\\\",null,{\\\"children\\\":[\\\"Preferred language: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"en-US\\\"},\\\"$37\\\",\\\"$81\\\",1]]},\\\"$37\\\",\\\"$80\\\",1]]},\\\"$37\\\",\\\"$7c\\\",1]\\n\"])", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01SpNHo44dxJvpgxWn5Rs8gT", + "type": "tool_result", + "content": "Current theme: dark

Preferred language: fr-FR,fr;q=0.9\n---\nCurrent theme: light\nCurrent theme: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"light\\\"},\\\"$37\\\",\\\"$7f\\\",1]]},\\\"$37\\\",\\\"$7e\\\",1],[\\\"$\\\",\\\"p\\\",null,{\\\"children\\\":[\\\"Preferred language: \\\",[\\\"$\\\",\\\"strong\\\",null,{\\\"children\\\":\\\"en-US\\\"},\\\"$37\\\",\\\"$81\\\",1]]},\\\"$37\\\",\\\"$80\\\",1]]},\\\"$37\\\",\\\"$7c\\\",1]\\n\"])", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:37:41.844Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "pkill -f \"next dev\" 2>/dev/null; true", + "description": "Stop the dev server", + "_extractedCommand": "pkill -f \"next dev\" 2>/dev/null; true" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "pkill -f \"next dev\" 2>/dev/null; true", + "description": "Stop the dev server" + } + } + }, + { + "timestamp": "2026-06-09T22:37:41.877Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01X5Mina7sJQ3DkCiBEyxvz3", + "result": "Exit code 144", + "success": false + }, + "raw": { + "type": "tool_result", + "content": "Exit code 144", + "is_error": true, + "tool_use_id": "toolu_01X5Mina7sJQ3DkCiBEyxvz3" + } + }, + { + "timestamp": "2026-06-09T22:37:49.446Z", + "type": "message", + "role": "assistant", + "content": "Done and verified. I created a server component at `app/user-preferences.tsx` and rendered it from `app/page.tsx`.\n\nHow it works:\n- It's an async server component using the `cookies()` and `headers()` APIs from `next/headers` — both are async in this Next.js version (16.3 canary), so they must be awaited, per the docs in `node_modules/next/dist/docs/`.\n- The theme comes from `cookieStore.get('theme')?.value`, falling back to `\"light\"` when the cookie is absent.\n- The language comes from the `Accept-Language` request header, falling back to `\"unknown\"` if the header is missing.\n- Since these are request-time APIs, the route is automatically rendered dynamically.\n\nI verified it against a running dev server: a request with `Cookie: theme=dark` and `Accept-Language: fr-FR,fr;q=0.9` rendered \"Current theme: dark / Preferred language: fr-FR,fr;q=0.9\", and a request with no cookie correctly fell back to \"light\". Type-checking passes as well.", + "raw": { + "parentUuid": "388585a3-bee6-44a8-9950-bd9024f88095", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8HKPDQZBTBQ0YGXFSE0ET", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Done and verified. I created a server component at `app/user-preferences.tsx` and rendered it from `app/page.tsx`.\n\nHow it works:\n- It's an async server component using the `cookies()` and `headers()` APIs from `next/headers` — both are async in this Next.js version (16.3 canary), so they must be awaited, per the docs in `node_modules/next/dist/docs/`.\n- The theme comes from `cookieStore.get('theme')?.value`, falling back to `\"light\"` when the cookie is absent.\n- The language comes from the `Accept-Language` request header, falling back to `\"unknown\"` if the header is missing.\n- Since these are request-time APIs, the route is automatically rendered dynamically.\n\nI verified it against a running dev server: a request with `Cookie: theme=dark` and `Accept-Language: fr-FR,fr;q=0.9` rendered \"Current theme: dark / Preferred language: fr-FR,fr;q=0.9\", and a request with no cookie correctly fell back to \"light\". Type-checking passes as well." + } + ], + "model": "claude-fable-5", + "stop_reason": "end_turn", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 110, + "cache_read_input_tokens": 41630, + "output_tokens": 362, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 110 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "a5243d83-5621-4796-aa7d-80e50d051b63", + "timestamp": "2026-06-09T22:37:49.446Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "e4376400-5ac2-41d4-b22e-110a242f39c0", + "version": "2.1.170", + "gitBranch": "master" + } + } + ], + "summary": { + "totalTurns": 5, + "toolCalls": { + "file_read": 4, + "file_write": 1, + "file_edit": 1, + "shell": 6, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 12, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cookies.md", + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/headers.md", + "/workspace/app/page.tsx", + "/workspace/app/layout.tsx" + ], + "filesModified": [ + "/workspace/app/user-preferences.tsx", + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null && cat /workspace/package.json", + "success": true + }, + { + "command": "find /workspace/node_modules/next/dist/docs/01-app -iname \"*cookie*\" -o -iname \"*header*\" | head -20", + "success": true + }, + { + "command": "ls -R /workspace --ignore=node_modules --ignore=.git -I '.claude' 2>/dev/null | head -30", + "success": true + }, + { + "command": "npx tsc --noEmit 2>&1 | head -20", + "success": true + }, + { + "command": "(npm run dev > /tmp/dev.log 2>&1 &) && sleep 8 && curl -s -H 'Cookie: theme=dark' -H 'Accept-Language: fr-FR,fr;q=0.9' http://localhost:3000 | grep -o 'Current theme:.*language[^<]*[^<]*' ; echo '---'; curl -s -H 'Accept-Language: en-US' http://localhost:3000 | grep -o 'Current theme:[^<]*<[^>]*>[^<]*'", + "success": true + }, + { + "command": "pkill -f \"next dev\" 2>/dev/null; true", + "success": false + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "parseSuccess": true +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/summary.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/summary.json new file mode 100644 index 000000000..66963eeaf --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-034-async-cookies/summary.json @@ -0,0 +1,7 @@ +{ + "totalRuns": 1, + "passedRuns": 1, + "passRate": "100%", + "meanDuration": 234.722, + "fingerprint": "55b4078900ee94650f1d33b557179717a442a49493f5ad4caf9072aa69e927fb" +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/eval.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/eval.txt new file mode 100644 index 000000000..859c5d581 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/eval.txt @@ -0,0 +1,10 @@ + + RUN v3.2.6 /workspace + + ✓ EVAL.ts (6 tests) 4ms + + Test Files 1 passed (1) + Tests 6 passed (6) + Start at 22:42:03 + Duration 226ms (transform 31ms, setup 0ms, collect 26ms, tests 4ms, environment 0ms, prepare 70ms) + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/scripts/build.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/scripts/build.txt new file mode 100644 index 000000000..5d526de61 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/outputs/scripts/build.txt @@ -0,0 +1,23 @@ + +> build +> next build + +▲ Next.js 16.3.0-canary.46 (Turbopack) + + Creating an optimized production build ... +✓ Compiled successfully in 4.2s + Running TypeScript ... + Finished TypeScript in 1812ms ... + Collecting page data using 1 worker ... + Generating static pages using 1 worker (0/3) ... +✓ Generating static pages using 1 worker (3/3) in 100ms + Finalizing page optimization ... + +Route (app) +┌ ƒ / +└ ○ /_not-found + + +○ (Static) prerendered as static content +ƒ (Dynamic) server-rendered on demand + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/result.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/result.json new file mode 100644 index 000000000..a5eafa383 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/result.json @@ -0,0 +1,71 @@ +{ + "status": "passed", + "duration": 190.408, + "model": "claude-fable-5", + "transcriptPath": "./transcript.json", + "transcriptRawPath": "./transcript-raw.jsonl", + "o11y": { + "totalTurns": 3, + "toolCalls": { + "file_read": 3, + "file_write": 1, + "file_edit": 0, + "shell": 7, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 11, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md", + "/workspace/app/page.tsx", + "/workspace/app/layout.tsx" + ], + "filesModified": [ + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null | head -50; cat /workspace/package.json", + "success": true + }, + { + "command": "grep -ril \"connection\\|force-dynamic\\|noStore\\|prerender\" /workspace/node_modules/next/dist/docs/01-app --include=\"*.md*\" | head -30", + "success": true + }, + { + "command": "ls /workspace; ls /workspace/app 2>/dev/null; cat /workspace/next.config.* 2>/dev/null; ls /workspace/src 2>/dev/null", + "success": true + }, + { + "command": "grep -n -i \"default\\|suspense\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/cacheComponents.md | head -20", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -20", + "success": true + }, + { + "command": "(npm start &) && sleep 4 && curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*' ; sleep 1.2; curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*'", + "success": true + }, + { + "command": "pkill -f \"next start\" 2>/dev/null; true", + "success": false + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "outputPaths": { + "eval": "./outputs/eval.txt", + "scripts": { + "build": "./outputs/scripts/build.txt" + } + } +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript-raw.jsonl b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript-raw.jsonl new file mode 100644 index 000000000..0c1addc9f --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript-raw.jsonl @@ -0,0 +1,45 @@ +{"type":"queue-operation","operation":"enqueue","timestamp":"2026-06-09T22:40:35.992Z","sessionId":"952372c2-b470-4c75-954c-b36da8186418","content":"Create a server component that displays the current server timestamp on each request. The timestamp should be different on every page load (not prerendered at build time). Use Next.js's recommended approach for opting out of static prerendering when you need dynamic data without using cookies/headers.\n"} +{"type":"queue-operation","operation":"dequeue","timestamp":"2026-06-09T22:40:35.992Z","sessionId":"952372c2-b470-4c75-954c-b36da8186418"} +{"parentUuid":null,"isSidechain":false,"promptId":"d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1","type":"user","message":{"role":"user","content":"Create a server component that displays the current server timestamp on each request. The timestamp should be different on every page load (not prerendered at build time). 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Then pass the refined question as args, weaving the answers in.\n- update-config: Use this skill to configure the Claude Code harness via settings.json. Automated behaviors (\"from now on when X\", \"each time X\", \"whenever X\", \"before/after X\") require hooks configured in settings.json - the harness executes these, not Claude, so memory/preferences cannot fulfill them. Also use for: permissions (\"allow X\", \"add permission\", \"move permission to\"), env vars (\"set X=Y\"), hook troubleshooting, or any changes to settings.json/settings.local.json files. Examples: \"allow npm commands\", \"add bq permission to global settings\", \"move permission to user settings\", \"set DEBUG=true\", \"when claude stops show X\". For simple settings like theme/model, suggest the /config command.\n- keybindings-help: Use when the user wants to customize keyboard shortcuts, rebind keys, add chord bindings, or modify ~/.claude/keybindings.json. 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Use when asked to run, start, or screenshot the app, or to confirm a change works in the real app (not just tests). First looks for a project skill that already covers launching the app; otherwise falls back to built-in patterns per project type (CLI, server, TUI, Electron, browser-driven, library).\n- init: Initialize a new CLAUDE.md file with codebase documentation\n- review: Review a pull request\n- security-review: Complete a security review of the pending changes on the current branch","skillCount":13,"isInitial":true,"names":["deep-research","update-config","keybindings-help","verify","code-review","simplify","fewer-permission-prompts","loop","claude-api","run","init","review","security-review"]},"type":"attachment","uuid":"9e75157c-a6a1-473b-a5d1-f979240d5927","timestamp":"2026-06-09T22:40:36.024Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"type":"ai-title","aiTitle":"Dynamic server timestamp component in Next.js","sessionId":"952372c2-b470-4c75-954c-b36da8186418"} 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+{"parentUuid":"61465c51-3dbf-4f7b-b190-2786ec3d2030","isSidechain":false,"promptId":"d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01LQa2rhXfXofdMnCaT6uxRE","type":"tool_result","content":"1\t---\n2\ttitle: connection\n3\tdescription: API Reference for the connection function.\n4\t---\n5\t\n6\tThe `connection()` function allows you to indicate rendering should wait for an incoming user request before continuing.\n7\t\n8\tIt's useful when a component doesn't use [Request-time APIs](/docs/app/glossary#request-time-apis) like `cookies` or `headers`, but still needs to produce different output per request, such as `Math.random()` or `new Date()`.\n9\t\n10\t```ts filename=\"app/page.tsx\" switcher\n11\timport { connection } from 'next/server'\n12\t\n13\texport default async function Page() {\n14\t await connection() // prerendering stops here\n15\t // the following code only runs at request time\n16\t const rand = Math.random()\n17\t return {rand}\n18\t}\n19\t```\n20\t\n21\t```jsx filename=\"app/page.js\" switcher\n22\timport { connection } from 'next/server'\n23\t\n24\texport default async function Page() {\n25\t await connection() // prerendering stops here\n26\t // the following code only runs at request time\n27\t const rand = Math.random()\n28\t return {rand}\n29\t}\n30\t```\n31\t\n32\t## Examples\n33\t\n34\t### Synchronous database drivers\n35\t\n36\tQueries from synchronous database drivers like `better-sqlite3` complete during prerendering. If you are not already using Request-time APIs, call `connection()` before your query to exclude them from prerendering:\n37\t\n38\t```ts filename=\"app/lib/data.ts\" switcher\n39\timport { connection } from 'next/server'\n40\timport Database from 'better-sqlite3'\n41\t\n42\tconst db = new Database('app.db')\n43\t\n44\texport async function getVisitorCount() {\n45\t await connection()\n46\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n47\t}\n48\t```\n49\t\n50\t```js filename=\"app/lib/data.js\" switcher\n51\timport { connection } from 'next/server'\n52\timport Database from 'better-sqlite3'\n53\t\n54\tconst db = new Database('app.db')\n55\t\n56\texport async function getVisitorCount() {\n57\t await connection()\n58\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n59\t}\n60\t```\n61\t\n62\tNow any component that calls `getVisitorCount()` will be excluded from prerendering, along with the rest of its output.\n63\t\n64\t## Reference\n65\t\n66\t### Type\n67\t\n68\t```jsx\n69\tfunction connection(): Promise\n70\t```\n71\t\n72\t### Parameters\n73\t\n74\t- The function does not accept any parameters.\n75\t\n76\t### Returns\n77\t\n78\t- The function returns a `void` Promise. It is not meant to be consumed.\n79\t\n80\t## Good to know\n81\t\n82\t- `connection` replaces [`unstable_noStore`](/docs/app/api-reference/functions/unstable_noStore) to better align with the future of Next.js.\n83\t- The function is only necessary when dynamic rendering is required and common Request-time APIs are not used.\n84\t\n85\t### Version History\n86\t\n87\t| Version | Changes |\n88\t| ------------ | ------------------------ |\n89\t| `v15.0.0` | `connection` stabilized. |\n90\t| `v15.0.0-RC` | `connection` introduced. |\n91\t"}]},"uuid":"d14c9e99-89dc-4806-83cf-46cc50247574","timestamp":"2026-06-09T22:40:52.900Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md","content":"---\ntitle: connection\ndescription: API Reference for the connection function.\n---\n\nThe `connection()` function allows you to indicate rendering should wait for an incoming user request before continuing.\n\nIt's useful when a component doesn't use [Request-time APIs](/docs/app/glossary#request-time-apis) like `cookies` or `headers`, but still needs to produce different output per request, such as `Math.random()` or `new Date()`.\n\n```ts filename=\"app/page.tsx\" switcher\nimport { connection } from 'next/server'\n\nexport default async function Page() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const rand = Math.random()\n return {rand}\n}\n```\n\n```jsx filename=\"app/page.js\" switcher\nimport { connection } from 'next/server'\n\nexport default async function Page() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const rand = Math.random()\n return {rand}\n}\n```\n\n## Examples\n\n### Synchronous database drivers\n\nQueries from synchronous database drivers like `better-sqlite3` complete during prerendering. 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\n4\t

Random Number Generator

\n5\t

Please implement a random number that changes on each request.

\n6\t
\n7\t )\n8\t}\n9\t"}]},"uuid":"fe77a52a-fea5-4dd4-8ae8-c54eb4106455","timestamp":"2026-06-09T22:41:02.850Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/app/page.tsx","content":"export default function Home() {\n return (\n
\n

Random Number Generator

\n

Please implement a random number that changes on each request.

\n
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RootLayout({\n children,\n}: Readonly<{\n children: React.ReactNode\n}>) {\n return (\n \n {children}\n \n )\n}\n","numLines":19,"startLine":1,"totalLines":19}},"sourceToolAssistantUUID":"e9dc8fe7-4359-4dfa-95da-52135efcf102","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} 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Data fetching is dynamic by default, and you choose what to cache at the page, component, or function level. Next.js prerenders a static HTML shell that is served immediately while dynamic content streams in when ready, letting you mix static and dynamic content within a single route.\n25:export default nextConfig\n36:Additionally, `cacheComponents` implements **[Partial Prerendering (PPR)](/docs/app/glossary#partial-prerendering-ppr)** as the default behavior in the App Router. This means the `experimental.ppr` configuration flag and the `experimental_ppr` route segment configuration are no longer necessary and have been removed.","is_error":false}]},"uuid":"9ac7083d-6265-4806-a017-c27ffe64682b","timestamp":"2026-06-09T22:41:09.585Z","toolUseResult":{"stdout":"12:Cache Components enables component and function-level caching using the [`use cache`](/docs/app/api-reference/directives/use-cache) directive. 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This means the `experimental.ppr` configuration flag and the `experimental_ppr` route segment configuration are no longer necessary and have been removed.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"e9f364e1-1d12-4ed4-8e2d-daac21c3258a","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"9ac7083d-6265-4806-a017-c27ffe64682b","isSidechain":false,"message":{"id":"gen_01KTQ8QYKRG84DT5E54H98KZ34","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"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"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":499,"cache_read_input_tokens":36178,"output_tokens":506,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":499},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"c2bd55e8-51fe-4f63-b47e-4c6ac22fc21d","timestamp":"2026-06-09T22:41:17.619Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"c2bd55e8-51fe-4f63-b47e-4c6ac22fc21d","isSidechain":false,"message":{"id":"gen_01KTQ8QYKRG84DT5E54H98KZ34","type":"message","role":"assistant","content":[{"type":"text","text":"The config is empty so `cacheComponents` is off — plain `connection()` is the right tool. Now I'll update the page:"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":499,"cache_read_input_tokens":36178,"output_tokens":506,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":499},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"cce3a992-fd4e-4ca1-864f-b2eb4958d651","timestamp":"2026-06-09T22:41:17.619Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"cce3a992-fd4e-4ca1-864f-b2eb4958d651","isSidechain":false,"message":{"id":"gen_01KTQ8QYKRG84DT5E54H98KZ34","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01HsP1s2FXz3hYxTcD9RHQxD","name":"Write","input":{"file_path":"/workspace/app/page.tsx","content":"import { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":499,"cache_read_input_tokens":36178,"output_tokens":506,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":499},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"c940629c-48b7-4ffb-bfd1-6a07e60c162f","timestamp":"2026-06-09T22:41:18.777Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"c940629c-48b7-4ffb-bfd1-6a07e60c162f","isSidechain":false,"promptId":"d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HsP1s2FXz3hYxTcD9RHQxD","type":"tool_result","content":"The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)"}]},"uuid":"9b6b0557-a87b-4cb5-83b5-4cd763244966","timestamp":"2026-06-09T22:41:18.795Z","toolUseResult":{"type":"update","filePath":"/workspace/app/page.tsx","content":"import { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n","structuredPatch":[{"oldStart":1,"oldLines":8,"newStart":1,"newLines":13,"lines":["-export default function Home() {","+import { connection } from 'next/server'","+","+export default async function Home() {","+ await connection() // prerendering stops here","+ // the following code only runs at request time","+ const timestamp = new Date().toISOString()"," return (","
","-

Random Number Generator

","-

Please implement a random number that changes on each request.

","+

Server Timestamp

","+

Current server time: {timestamp}

","
"," )"," }"]}],"originalFile":"export default function Home() {\n return (\n
\n

Random Number Generator

\n

Please implement a random number that changes on each request.

\n
\n )\n}\n","userModified":false},"sourceToolAssistantUUID":"c940629c-48b7-4ffb-bfd1-6a07e60c162f","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"9b6b0557-a87b-4cb5-83b5-4cd763244966","isSidechain":false,"attachment":{"type":"task_reminder","content":[],"itemCount":0},"type":"attachment","uuid":"ebd7905a-77f9-413f-99fa-4e1c8b68a25e","timestamp":"2026-06-09T22:41:18.809Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} 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app","timeout":180000}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7411,"cache_read_input_tokens":29944,"output_tokens":162,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":7411},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"d9d402b1-ae72-4d31-8a24-96e7b04ab12e","timestamp":"2026-06-09T22:41:24.326Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"d9d402b1-ae72-4d31-8a24-96e7b04ab12e","isSidechain":false,"promptId":"d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XuMX97G2PfnLAiP8qkfmBM","type":"tool_result","content":" \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1746ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 125ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand","is_error":false}]},"uuid":"6130578c-04a2-4111-854a-37ec4a1f31d3","timestamp":"2026-06-09T22:41:33.212Z","toolUseResult":{"stdout":" \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1746ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 125ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"d9d402b1-ae72-4d31-8a24-96e7b04ab12e","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} 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timestamps","timeout":60000}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":394,"cache_read_input_tokens":37355,"output_tokens":297,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":394},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"4995b303-ed8f-45c9-bd0f-b25bdccb4aac","timestamp":"2026-06-09T22:41:39.414Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"4995b303-ed8f-45c9-bd0f-b25bdccb4aac","isSidechain":false,"promptId":"d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Kzkc6JYZkiTeSnpQ1edC3m","type":"tool_result","content":"> start\n> next start\n\n▲ Next.js 16.3.0-canary.46\n- Local: http://localhost:3000\n- Network: http://100.64.77.103:3000\n✓ Ready in 115ms\nCurrent server time: 2026-06-09T22:41:43.514Z\nCurrent server time: 2026-06-09T22:41:44.761Z","is_error":false}]},"uuid":"8f6bc447-4a48-4d09-bf55-08bfe9a28b88","timestamp":"2026-06-09T22:41:44.770Z","toolUseResult":{"stdout":"> start\n> next start\n\n▲ Next.js 16.3.0-canary.46\n- Local: http://localhost:3000\n- Network: http://100.64.77.103:3000\n✓ Ready in 115ms\nCurrent server time: 2026-06-09T22:41:43.514Z\nCurrent server time: 2026-06-09T22:41:44.761Z","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"4995b303-ed8f-45c9-bd0f-b25bdccb4aac","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} 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+{"parentUuid":"afacc883-35c6-4753-a9c6-cdc51e097732","isSidechain":false,"message":{"id":"gen_01KTQ8S58P3G2W6K2DRB99W2CG","type":"message","role":"assistant","content":[{"type":"text","text":"Done and verified. The page at `app/page.tsx` is now a server component that displays the current server timestamp on every request:\n\n```tsx\nimport { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n```\n\nPer this version's bundled docs, `connection()` from `next/server` is exactly the recommended API for this case: it makes rendering wait for an incoming request when you need per-request output (like `new Date()`) but don't use `cookies()`/`headers()`. The docs note it replaces the deprecated `unstable_noStore()`. Code before the `await connection()` may still run at build time, so the timestamp is read after it.\n\nI verified it works against a production build (`next build` + `next start`), since dev mode always renders dynamically and wouldn't prove anything:\n\n- The build output lists the route as `ƒ /` — \"server-rendered on demand,\" not statically prerendered.\n- Two consecutive requests returned different timestamps (`...43.514Z`, then `...44.761Z`).\n\nOne note: the page previously displayed placeholder text asking for a random number; I replaced it with the timestamp UI you described and the existing layout metadata (\"Random Number\") now slightly mismatches — say the word if you'd like that updated too."}],"model":"claude-fable-5","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":108,"cache_read_input_tokens":38169,"output_tokens":509,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":108},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"61c1121e-a501-41a3-8cff-8491489d8494","timestamp":"2026-06-09T22:41:58.663Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"952372c2-b470-4c75-954c-b36da8186418","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a server component that displays the current server timestamp on each request. The timestamp should be different on every page load (not prerendered at build time). Use Next.js's recommended ap…","leafUuid":"61c1121e-a501-41a3-8cff-8491489d8494","sessionId":"952372c2-b470-4c75-954c-b36da8186418"} +{"type":"ai-title","aiTitle":"Dynamic server timestamp component in Next.js","sessionId":"952372c2-b470-4c75-954c-b36da8186418"} diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript.json new file mode 100644 index 000000000..b21c727be --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/run-1/transcript.json @@ -0,0 +1,637 @@ +{ + "agent": "vercel-ai-gateway/claude-code", + "model": "claude-fable-5", + "events": [ + { + "timestamp": "2026-06-09T22:40:36.025Z", + "type": "message", + "role": "user", + "content": "Create a server component that displays the current server timestamp on each request. The timestamp should be different on every page load (not prerendered at build time). Use Next.js's recommended approach for opting out of static prerendering when you need dynamic data without using cookies/headers.\n", + "raw": { + "parentUuid": null, + "isSidechain": false, + "promptId": "d5bc24f6-0bbe-4a60-b49b-b8c3ffa741c1", + "type": "user", + "message": { + "role": "user", + "content": "Create a server component that displays the current server timestamp on each request. The timestamp should be different on every page load (not prerendered at build time). Use Next.js's recommended approach for opting out of static prerendering when you need dynamic data without using cookies/headers.\n" + }, + "uuid": "56b5ac55-1d14-4667-acbe-fe438b7e3190", + "timestamp": "2026-06-09T22:40:36.025Z", + "permissionMode": "bypassPermissions", + "promptSource": "sdk", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "952372c2-b470-4c75-954c-b36da8186418", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:40:40.317Z", + "type": "message", + "role": "assistant", + "content": "I'll start by reading the project's Next.js docs, since the instructions warn this version differs from what I know.", + "raw": { + "parentUuid": "b83582be-f1b8-4e38-b84a-9cc185ec638b", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8PXRY1HQ1PQ4VT63XNE3P", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "I'll start by reading the project's Next.js docs, 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+ "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:40:52.890Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md", + "_extractedPath": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md" + } + } + }, + { + "timestamp": "2026-06-09T22:40:52.900Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01LQa2rhXfXofdMnCaT6uxRE", + "result": "1\t---\n2\ttitle: connection\n3\tdescription: API Reference for the connection function.\n4\t---\n5\t\n6\tThe `connection()` function allows you to indicate rendering should wait for an incoming user request before continuing.\n7\t\n8\tIt's useful when a component doesn't use [Request-time APIs](/docs/app/glossary#request-time-apis) like `cookies` or `headers`, but still needs to produce different output per request, such as `Math.random()` or `new Date()`.\n9\t\n10\t```ts filename=\"app/page.tsx\" switcher\n11\timport { connection } from 'next/server'\n12\t\n13\texport default async function Page() {\n14\t await connection() // prerendering stops here\n15\t // the following code only runs at request time\n16\t const rand = Math.random()\n17\t return {rand}\n18\t}\n19\t```\n20\t\n21\t```jsx filename=\"app/page.js\" switcher\n22\timport { connection } from 'next/server'\n23\t\n24\texport default async function Page() {\n25\t await connection() // prerendering stops here\n26\t // the following code only runs at request time\n27\t const rand = Math.random()\n28\t return {rand}\n29\t}\n30\t```\n31\t\n32\t## Examples\n33\t\n34\t### Synchronous database drivers\n35\t\n36\tQueries from synchronous database drivers like `better-sqlite3` complete during prerendering. If you are not already using Request-time APIs, call `connection()` before your query to exclude them from prerendering:\n37\t\n38\t```ts filename=\"app/lib/data.ts\" switcher\n39\timport { connection } from 'next/server'\n40\timport Database from 'better-sqlite3'\n41\t\n42\tconst db = new Database('app.db')\n43\t\n44\texport async function getVisitorCount() {\n45\t await connection()\n46\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n47\t}\n48\t```\n49\t\n50\t```js filename=\"app/lib/data.js\" switcher\n51\timport { connection } from 'next/server'\n52\timport Database from 'better-sqlite3'\n53\t\n54\tconst db = new Database('app.db')\n55\t\n56\texport async function getVisitorCount() {\n57\t await connection()\n58\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n59\t}\n60\t```\n61\t\n62\tNow any component that calls `getVisitorCount()` will be excluded from prerendering, along with the rest of its output.\n63\t\n64\t## Reference\n65\t\n66\t### Type\n67\t\n68\t```jsx\n69\tfunction connection(): Promise\n70\t```\n71\t\n72\t### Parameters\n73\t\n74\t- The function does not accept any parameters.\n75\t\n76\t### Returns\n77\t\n78\t- The function returns a `void` Promise. It is not meant to be consumed.\n79\t\n80\t## Good to know\n81\t\n82\t- `connection` replaces [`unstable_noStore`](/docs/app/api-reference/functions/unstable_noStore) to better align with the future of Next.js.\n83\t- The function is only necessary when dynamic rendering is required and common Request-time APIs are not used.\n84\t\n85\t### Version History\n86\t\n87\t| Version | Changes |\n88\t| ------------ | ------------------------ |\n89\t| `v15.0.0` | `connection` stabilized. |\n90\t| `v15.0.0-RC` | `connection` introduced. |\n91\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01LQa2rhXfXofdMnCaT6uxRE", + "type": "tool_result", + "content": "1\t---\n2\ttitle: connection\n3\tdescription: API Reference for the connection function.\n4\t---\n5\t\n6\tThe `connection()` function allows you to indicate rendering should wait for an incoming user request before continuing.\n7\t\n8\tIt's useful when a component doesn't use [Request-time APIs](/docs/app/glossary#request-time-apis) like `cookies` or `headers`, but still needs to produce different output per request, such as `Math.random()` or `new Date()`.\n9\t\n10\t```ts filename=\"app/page.tsx\" switcher\n11\timport { connection } from 'next/server'\n12\t\n13\texport default async function Page() {\n14\t await connection() // prerendering stops here\n15\t // the following code only runs at request time\n16\t const rand = Math.random()\n17\t return {rand}\n18\t}\n19\t```\n20\t\n21\t```jsx filename=\"app/page.js\" switcher\n22\timport { connection } from 'next/server'\n23\t\n24\texport default async function Page() {\n25\t await connection() // prerendering stops here\n26\t // the following code only runs at request time\n27\t const rand = Math.random()\n28\t return {rand}\n29\t}\n30\t```\n31\t\n32\t## Examples\n33\t\n34\t### Synchronous database drivers\n35\t\n36\tQueries from synchronous database drivers like `better-sqlite3` complete during prerendering. If you are not already using Request-time APIs, call `connection()` before your query to exclude them from prerendering:\n37\t\n38\t```ts filename=\"app/lib/data.ts\" switcher\n39\timport { connection } from 'next/server'\n40\timport Database from 'better-sqlite3'\n41\t\n42\tconst db = new Database('app.db')\n43\t\n44\texport async function getVisitorCount() {\n45\t await connection()\n46\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n47\t}\n48\t```\n49\t\n50\t```js filename=\"app/lib/data.js\" switcher\n51\timport { connection } from 'next/server'\n52\timport Database from 'better-sqlite3'\n53\t\n54\tconst db = new Database('app.db')\n55\t\n56\texport async function getVisitorCount() {\n57\t await connection()\n58\t return db.prepare('SELECT value FROM counters WHERE name = ?').get('visitors')\n59\t}\n60\t```\n61\t\n62\tNow any component that calls `getVisitorCount()` will be excluded from prerendering, along with the rest of its output.\n63\t\n64\t## Reference\n65\t\n66\t### Type\n67\t\n68\t```jsx\n69\tfunction connection(): Promise\n70\t```\n71\t\n72\t### Parameters\n73\t\n74\t- The function does not accept any parameters.\n75\t\n76\t### Returns\n77\t\n78\t- The function returns a `void` Promise. It is not meant to be consumed.\n79\t\n80\t## Good to know\n81\t\n82\t- `connection` replaces [`unstable_noStore`](/docs/app/api-reference/functions/unstable_noStore) to better align with the future of Next.js.\n83\t- The function is only necessary when dynamic rendering is required and common Request-time APIs are not used.\n84\t\n85\t### Version History\n86\t\n87\t| Version | Changes |\n88\t| ------------ | ------------------------ |\n89\t| `v15.0.0` | `connection` stabilized. |\n90\t| `v15.0.0-RC` | `connection` introduced. |\n91\t" + } + }, + { + "timestamp": "2026-06-09T22:40:59.060Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "ls /workspace; ls /workspace/app 2>/dev/null; cat /workspace/next.config.* 2>/dev/null; ls /workspace/src 2>/dev/null", + "description": "Inspect project structure and next config", + "_extractedCommand": "ls /workspace; ls /workspace/app 2>/dev/null; cat /workspace/next.config.* 2>/dev/null; ls /workspace/src 2>/dev/null" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "ls /workspace; ls /workspace/app 2>/dev/null; cat /workspace/next.config.* 2>/dev/null; ls /workspace/src 2>/dev/null", + "description": "Inspect project structure and next config" + } + } + }, + { + "timestamp": "2026-06-09T22:40:59.116Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01Mr5N7DALNmw23Hp68U2SxL", + "result": "Exit code 2\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\nnode_modules\npackage-lock.json\npackage.json\ntsconfig.json\nlayout.tsx\npage.tsx\nimport type { NextConfig } from 'next'\n\nconst nextConfig: NextConfig = {}\n\nexport default nextConfig", + "success": false + }, + "raw": { + "type": "tool_result", + "content": "Exit code 2\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\nnode_modules\npackage-lock.json\npackage.json\ntsconfig.json\nlayout.tsx\npage.tsx\nimport type { NextConfig } from 'next'\n\nconst nextConfig: NextConfig = {}\n\nexport default nextConfig", + "is_error": true, + "tool_use_id": "toolu_01Mr5N7DALNmw23Hp68U2SxL" + } + }, + { + "timestamp": "2026-06-09T22:41:02.847Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/app/page.tsx", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/app/page.tsx" + } + } + }, + { + "timestamp": "2026-06-09T22:41:02.850Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01KjEQfmqhwdHYFV4fR8EaxP", + "result": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

Random Number Generator

\n5\t

Please implement a random number that changes on each request.

\n6\t
\n7\t )\n8\t}\n9\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01KjEQfmqhwdHYFV4fR8EaxP", + "type": "tool_result", + "content": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

Random Number Generator

\n5\t

Please implement a random number that changes on each request.

\n6\t
\n7\t )\n8\t}\n9\t" + } + }, + { + "timestamp": "2026-06-09T22:41:02.857Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/app/layout.tsx", + "_extractedPath": "/workspace/app/layout.tsx" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/app/layout.tsx" + } + } + }, + { + "timestamp": "2026-06-09T22:41:02.859Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01CBXQ2i1HbDMJHaZ43eQim3", + "result": "1\timport type { Metadata } from 'next'\n2\t\n3\texport const metadata: Metadata = {\n4\t title: 'Random Number',\n5\t description: 'Display a random number on each request',\n6\t}\n7\t\n8\texport default function RootLayout({\n9\t children,\n10\t}: Readonly<{\n11\t children: React.ReactNode\n12\t}>) {\n13\t return (\n14\t \n15\t {children}\n16\t \n17\t )\n18\t}\n19\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01CBXQ2i1HbDMJHaZ43eQim3", + "type": "tool_result", + "content": "1\timport type { Metadata } from 'next'\n2\t\n3\texport const metadata: Metadata = {\n4\t title: 'Random Number',\n5\t description: 'Display a random number on each request',\n6\t}\n7\t\n8\texport default function RootLayout({\n9\t children,\n10\t}: Readonly<{\n11\t children: React.ReactNode\n12\t}>) {\n13\t return (\n14\t \n15\t {children}\n16\t \n17\t )\n18\t}\n19\t" + } + }, + { + "timestamp": "2026-06-09T22:41:09.544Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "grep -n -i \"default\\|suspense\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/cacheComponents.md | head -20", + "description": "Check if cacheComponents is default and Suspense requirements", + "_extractedCommand": "grep -n -i \"default\\|suspense\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/cacheComponents.md | head -20" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "grep -n -i \"default\\|suspense\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/cacheComponents.md | head -20", + "description": "Check if cacheComponents is default and Suspense requirements" + } + } + }, + { + "timestamp": "2026-06-09T22:41:09.585Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01BRfJ5KuQLoR5v7VPNVkxWZ", + "result": "12:Cache Components enables component and function-level caching using the [`use cache`](/docs/app/api-reference/directives/use-cache) directive. Data fetching is dynamic by default, and you choose what to cache at the page, component, or function level. Next.js prerenders a static HTML shell that is served immediately while dynamic content streams in when ready, letting you mix static and dynamic content within a single route.\n25:export default nextConfig\n36:Additionally, `cacheComponents` implements **[Partial Prerendering (PPR)](/docs/app/glossary#partial-prerendering-ppr)** as the default behavior in the App Router. This means the `experimental.ppr` configuration flag and the `experimental_ppr` route segment configuration are no longer necessary and have been removed.", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01BRfJ5KuQLoR5v7VPNVkxWZ", + "type": "tool_result", + "content": "12:Cache Components enables component and function-level caching using the [`use cache`](/docs/app/api-reference/directives/use-cache) directive. Data fetching is dynamic by default, and you choose what to cache at the page, component, or function level. Next.js prerenders a static HTML shell that is served immediately while dynamic content streams in when ready, letting you mix static and dynamic content within a single route.\n25:export default nextConfig\n36:Additionally, `cacheComponents` implements **[Partial Prerendering (PPR)](/docs/app/glossary#partial-prerendering-ppr)** as the default behavior in the App Router. This means the `experimental.ppr` configuration flag and the `experimental_ppr` route segment configuration are no longer necessary and have been removed.", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:41:17.619Z", + "type": "message", + "role": "assistant", + "content": "The config is empty so `cacheComponents` is off — plain `connection()` is the right tool. Now I'll update the page:", + "raw": { + "parentUuid": "c2bd55e8-51fe-4f63-b47e-4c6ac22fc21d", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8QYKRG84DT5E54H98KZ34", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "The config is empty so `cacheComponents` is off — plain `connection()` is the right tool. Now I'll update the page:" + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 499, + "cache_read_input_tokens": 36178, + "output_tokens": 506, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 499 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "cce3a992-fd4e-4ca1-864f-b2eb4958d651", + "timestamp": "2026-06-09T22:41:17.619Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "952372c2-b470-4c75-954c-b36da8186418", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:41:18.777Z", + "type": "tool_call", + "tool": { + "name": "file_write", + "originalName": "Write", + "args": { + "file_path": "/workspace/app/page.tsx", + "content": "import { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Write", + "input": { + "file_path": "/workspace/app/page.tsx", + "content": "import { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n" + } + } + }, + { + "timestamp": "2026-06-09T22:41:18.795Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01HsP1s2FXz3hYxTcD9RHQxD", + "result": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01HsP1s2FXz3hYxTcD9RHQxD", + "type": "tool_result", + "content": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)" + } + }, + { + "timestamp": "2026-06-09T22:41:24.326Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "npm run build 2>&1 | tail -20", + "description": "Build the Next.js app", + "timeout": 180000, + "_extractedCommand": "npm run build 2>&1 | tail -20" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "npm run build 2>&1 | tail -20", + "description": "Build the Next.js app", + "timeout": 180000 + } + } + }, + { + "timestamp": "2026-06-09T22:41:33.212Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01XuMX97G2PfnLAiP8qkfmBM", + "result": " \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1746ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 125ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01XuMX97G2PfnLAiP8qkfmBM", + "type": "tool_result", + "content": " \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1746ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 125ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:41:39.414Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "(npm start &) && sleep 4 && curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*' ; sleep 1.2; curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*'", + "description": "Start prod server and fetch page twice to compare timestamps", + "timeout": 60000, + "_extractedCommand": "(npm start &) && sleep 4 && curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*' ; sleep 1.2; curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*'" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "(npm start &) && sleep 4 && curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*' ; sleep 1.2; curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*'", + "description": "Start prod server and fetch page twice to compare timestamps", + "timeout": 60000 + } + } + }, + { + "timestamp": "2026-06-09T22:41:44.770Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01Kzkc6JYZkiTeSnpQ1edC3m", + "result": "> start\n> next start\n\n▲ Next.js 16.3.0-canary.46\n- Local: http://localhost:3000\n- Network: http://100.64.77.103:3000\n✓ Ready in 115ms\nCurrent server time: 2026-06-09T22:41:43.514Z\nCurrent server time: 2026-06-09T22:41:44.761Z", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01Kzkc6JYZkiTeSnpQ1edC3m", + "type": "tool_result", + "content": "> start\n> next start\n\n▲ Next.js 16.3.0-canary.46\n- Local: http://localhost:3000\n- Network: http://100.64.77.103:3000\n✓ Ready in 115ms\nCurrent server time: 2026-06-09T22:41:43.514Z\nCurrent server time: 2026-06-09T22:41:44.761Z", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:41:49.264Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "pkill -f \"next start\" 2>/dev/null; true", + "description": "Stop the production server", + "_extractedCommand": "pkill -f \"next start\" 2>/dev/null; true" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "pkill -f \"next start\" 2>/dev/null; true", + "description": "Stop the production server" + } + } + }, + { + "timestamp": "2026-06-09T22:41:49.294Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_015W2sy8Gyb43edhi7p4i7JD", + "result": "Exit code 144", + "success": false + }, + "raw": { + "type": "tool_result", + "content": "Exit code 144", + "is_error": true, + "tool_use_id": "toolu_015W2sy8Gyb43edhi7p4i7JD" + } + }, + { + "timestamp": "2026-06-09T22:41:58.663Z", + "type": "message", + "role": "assistant", + "content": "Done and verified. The page at `app/page.tsx` is now a server component that displays the current server timestamp on every request:\n\n```tsx\nimport { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n```\n\nPer this version's bundled docs, `connection()` from `next/server` is exactly the recommended API for this case: it makes rendering wait for an incoming request when you need per-request output (like `new Date()`) but don't use `cookies()`/`headers()`. The docs note it replaces the deprecated `unstable_noStore()`. Code before the `await connection()` may still run at build time, so the timestamp is read after it.\n\nI verified it works against a production build (`next build` + `next start`), since dev mode always renders dynamically and wouldn't prove anything:\n\n- The build output lists the route as `ƒ /` — \"server-rendered on demand,\" not statically prerendered.\n- Two consecutive requests returned different timestamps (`...43.514Z`, then `...44.761Z`).\n\nOne note: the page previously displayed placeholder text asking for a random number; I replaced it with the timestamp UI you described and the existing layout metadata (\"Random Number\") now slightly mismatches — say the word if you'd like that updated too.", + "raw": { + "parentUuid": "afacc883-35c6-4753-a9c6-cdc51e097732", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8S58P3G2W6K2DRB99W2CG", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Done and verified. The page at `app/page.tsx` is now a server component that displays the current server timestamp on every request:\n\n```tsx\nimport { connection } from 'next/server'\n\nexport default async function Home() {\n await connection() // prerendering stops here\n // the following code only runs at request time\n const timestamp = new Date().toISOString()\n return (\n
\n

Server Timestamp

\n

Current server time: {timestamp}

\n
\n )\n}\n```\n\nPer this version's bundled docs, `connection()` from `next/server` is exactly the recommended API for this case: it makes rendering wait for an incoming request when you need per-request output (like `new Date()`) but don't use `cookies()`/`headers()`. The docs note it replaces the deprecated `unstable_noStore()`. Code before the `await connection()` may still run at build time, so the timestamp is read after it.\n\nI verified it works against a production build (`next build` + `next start`), since dev mode always renders dynamically and wouldn't prove anything:\n\n- The build output lists the route as `ƒ /` — \"server-rendered on demand,\" not statically prerendered.\n- Two consecutive requests returned different timestamps (`...43.514Z`, then `...44.761Z`).\n\nOne note: the page previously displayed placeholder text asking for a random number; I replaced it with the timestamp UI you described and the existing layout metadata (\"Random Number\") now slightly mismatches — say the word if you'd like that updated too." + } + ], + "model": "claude-fable-5", + "stop_reason": "end_turn", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 108, + "cache_read_input_tokens": 38169, + "output_tokens": 509, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 108 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "61c1121e-a501-41a3-8cff-8491489d8494", + "timestamp": "2026-06-09T22:41:58.663Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "952372c2-b470-4c75-954c-b36da8186418", + "version": "2.1.170", + "gitBranch": "master" + } + } + ], + "summary": { + "totalTurns": 3, + "toolCalls": { + "file_read": 3, + "file_write": 1, + "file_edit": 0, + "shell": 7, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 11, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/connection.md", + "/workspace/app/page.tsx", + "/workspace/app/layout.tsx" + ], + "filesModified": [ + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null | head -50; cat /workspace/package.json", + "success": true + }, + { + "command": "grep -ril \"connection\\|force-dynamic\\|noStore\\|prerender\" /workspace/node_modules/next/dist/docs/01-app --include=\"*.md*\" | head -30", + "success": true + }, + { + "command": "ls /workspace; ls /workspace/app 2>/dev/null; cat /workspace/next.config.* 2>/dev/null; ls /workspace/src 2>/dev/null", + "success": true + }, + { + "command": "grep -n -i \"default\\|suspense\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/05-config/01-next-config-js/cacheComponents.md | head -20", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -20", + "success": true + }, + { + "command": "(npm start &) && sleep 4 && curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*' ; sleep 1.2; curl -s localhost:3000 | grep -o 'Current server time:[^<]*[^<]*'", + "success": true + }, + { + "command": "pkill -f \"next start\" 2>/dev/null; true", + "success": false + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "parseSuccess": true +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/summary.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/summary.json new file mode 100644 index 000000000..0c14213d9 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-035-connection-dynamic/summary.json @@ -0,0 +1,7 @@ +{ + "totalRuns": 1, + "passedRuns": 1, + "passRate": "100%", + "meanDuration": 190.408, + "fingerprint": "a48245ff540a58d416b3c0d8aa76d654274f468006bb9be2f5e4dd5ddb824a69" +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/eval.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/eval.txt new file mode 100644 index 000000000..f60b82564 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/eval.txt @@ -0,0 +1,10 @@ + + RUN v3.2.6 /workspace + + ✓ EVAL.ts (5 tests) 4ms + + Test Files 1 passed (1) + Tests 5 passed (5) + Start at 22:45:15 + Duration 214ms (transform 28ms, setup 0ms, collect 23ms, tests 4ms, environment 0ms, prepare 59ms) + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/scripts/build.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/scripts/build.txt new file mode 100644 index 000000000..b60f983b7 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/outputs/scripts/build.txt @@ -0,0 +1,23 @@ + +> build +> next build + +▲ Next.js 16.3.0-canary.46 (Turbopack) + + Creating an optimized production build ... +✓ Compiled successfully in 4.2s + Running TypeScript ... + Finished TypeScript in 1789ms ... + Collecting page data using 1 worker ... + Generating static pages using 1 worker (0/3) ... +✓ Generating static pages using 1 worker (3/3) in 102ms + Finalizing page optimization ... + +Route (app) +┌ ƒ / +└ ○ /_not-found + + +○ (Static) prerendered as static content +ƒ (Dynamic) server-rendered on demand + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/result.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/result.json new file mode 100644 index 000000000..c408443f7 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/result.json @@ -0,0 +1,69 @@ +{ + "status": "passed", + "duration": 204.442, + "model": "claude-fable-5", + "transcriptPath": "./transcript.json", + "transcriptRawPath": "./transcript-raw.jsonl", + "o11y": { + "totalTurns": 4, + "toolCalls": { + "file_read": 4, + "file_write": 2, + "file_edit": 0, + "shell": 6, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 12, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/after.md", + "/workspace/next.config.ts", + "/workspace/app/page.tsx", + "/workspace/tsconfig.json" + ], + "filesModified": [ + "/workspace/app/lib/analytics.ts", + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null | head -50", + "success": true + }, + { + "command": "grep -ril \"after\" /workspace/node_modules/next/dist/docs/01-app --include=\"*.md*\" | grep -i -E \"after|api-reference\" | head -20", + "success": true + }, + { + "command": "ls /workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/ | head -40", + "success": true + }, + { + "command": "cat /workspace/package.json && ls /workspace && ls /workspace/app 2>/dev/null || ls /workspace/src 2>/dev/null", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -25", + "success": true + }, + { + "command": "(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true", + "success": false + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "outputPaths": { + "eval": "./outputs/eval.txt", + "scripts": { + "build": "./outputs/scripts/build.txt" + } + } +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/transcript-raw.jsonl 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+{"parentUuid":"411dfb3e-d49b-484e-90a1-17ded8339505","isSidechain":false,"promptId":"64ef201f-ddae-4202-bab8-b53935d8cd9a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Df3ULBHzwBBf6rwJ2prm2y","type":"tool_result","content":"1\t---\n2\ttitle: after\n3\tdescription: API Reference for the after function.\n4\t---\n5\t\n6\t`after` allows you to schedule work to be executed after a response (or prerender) is finished. This is useful for tasks and other side effects that should not block the response, such as logging and analytics.\n7\t\n8\tIt can be used in [Server Components](/docs/app/getting-started/server-and-client-components) (including [`generateMetadata`](/docs/app/api-reference/functions/generate-metadata)), [Server Functions](/docs/app/getting-started/mutating-data), [Route Handlers](/docs/app/api-reference/file-conventions/route), and [Proxy](/docs/app/api-reference/file-conventions/proxy).\n9\t\n10\tThe function accepts a callback that will be executed after the response (or prerender) is finished:\n11\t\n12\t```tsx filename=\"app/layout.tsx\" switcher\n13\timport { after } from 'next/server'\n14\t// Custom logging function\n15\timport { log } from '@/app/utils'\n16\t\n17\texport default function Layout({ children }: { children: React.ReactNode }) {\n18\t after(() => {\n19\t // Execute after the layout is rendered and sent to the user\n20\t log()\n21\t })\n22\t return <>{children}\n23\t}\n24\t```\n25\t\n26\t```jsx filename=\"app/layout.jsx\" switcher\n27\timport { after } from 'next/server'\n28\t// Custom logging function\n29\timport { log } from '@/app/utils'\n30\t\n31\texport default function Layout({ children }) {\n32\t after(() => {\n33\t // Execute after the layout is rendered and sent to the user\n34\t log()\n35\t })\n36\t return <>{children}\n37\t}\n38\t```\n39\t\n40\t> **Good to know:** `after` is not a [Request-time API](/docs/app/glossary#request-time-apis) and calling it does not cause a route to become dynamic. If it's used within a static page, the callback will execute at build time, or whenever a page is revalidated.\n41\t\n42\t## Reference\n43\t\n44\t### Parameters\n45\t\n46\t- A callback function which will be executed after the response (or prerender) is finished.\n47\t\n48\t### Duration\n49\t\n50\t`after` will run for the platform's default or configured max duration of your route. If your platform supports it, you can configure the timeout limit using the [`maxDuration`](/docs/app/api-reference/file-conventions/route-segment-config/maxDuration) route segment config.\n51\t\n52\t## Good to know\n53\t\n54\t- `after` will be executed even if the response didn't complete successfully. Including when an error is thrown or when `notFound` or `redirect` is called.\n55\t- You can use React `cache` to deduplicate functions called inside `after`.\n56\t- `after` can be nested inside other `after` calls, for example, you can create utility functions that wrap `after` calls to add additional functionality.\n57\t\n58\t## Examples\n59\t\n60\t### With request APIs\n61\t\n62\tWhether you can use request APIs like [`cookies`](/docs/app/api-reference/functions/cookies) and [`headers`](/docs/app/api-reference/functions/headers) inside `after` depends on where `after` is called from.\n63\t\n64\t#### In Route Handlers and Server Functions\n65\t\n66\tYou can call `cookies` and `headers` directly inside the `after` callback when used in [Route Handlers](/docs/app/api-reference/file-conventions/route) and [Server Functions](/docs/app/getting-started/mutating-data). This is useful for logging activity after a mutation or API request. For example:\n67\t\n68\t```ts filename=\"app/api/route.ts\" highlight={2,10-16} switcher\n69\timport { after } from 'next/server'\n70\timport { cookies, headers } from 'next/headers'\n71\timport { logUserAction } from '@/app/utils'\n72\t\n73\texport async function POST(request: Request) {\n74\t // Perform mutation\n75\t // ...\n76\t\n77\t // Log user activity for analytics\n78\t after(async () => {\n79\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n80\t const sessionCookie =\n81\t (await cookies()).get('session-id')?.value || 'anonymous'\n82\t\n83\t logUserAction({ sessionCookie, userAgent })\n84\t })\n85\t\n86\t return new Response(JSON.stringify({ status: 'success' }), {\n87\t status: 200,\n88\t headers: { 'Content-Type': 'application/json' },\n89\t })\n90\t}\n91\t```\n92\t\n93\t```js filename=\"app/api/route.js\" highlight={2,10-16} switcher\n94\timport { after } from 'next/server'\n95\timport { cookies, headers } from 'next/headers'\n96\timport { logUserAction } from '@/app/utils'\n97\t\n98\texport async function POST(request) {\n99\t // Perform mutation\n100\t // ...\n101\t\n102\t // Log user activity for analytics\n103\t after(async () => {\n104\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n105\t const sessionCookie =\n106\t (await cookies()).get('session-id')?.value || 'anonymous'\n107\t\n108\t logUserAction({ sessionCookie, userAgent })\n109\t })\n110\t\n111\t return new Response(JSON.stringify({ status: 'success' }), {\n112\t status: 200,\n113\t headers: { 'Content-Type': 'application/json' },\n114\t })\n115\t}\n116\t```\n117\t\n118\t#### In Server Components (pages and layouts)\n119\t\n120\t[Server Components](/docs/app/getting-started/server-and-client-components) (including pages, layouts, and `generateMetadata`) **cannot** use `cookies`, `headers`, or other Request-time APIs inside `after`. This is because Next.js needs to know which part of the component tree accesses request data to support [Partial Prerendering](/docs/app/glossary#partial-prerendering-ppr) and [Cache Components](/docs/app/getting-started/caching), but `after` runs after React's rendering lifecycle.\n121\t\n122\tIf you need request data inside an `after` callback in a Server Component, read it beforehand and pass the values in:\n123\t\n124\t```tsx filename=\"app/page.tsx\" highlight={8-10,12} switcher\n125\timport { after } from 'next/server'\n126\timport { cookies, headers } from 'next/headers'\n127\timport { logUserAction } from '@/app/utils'\n128\t\n129\texport default async function Page() {\n130\t // Read request data before `after` — this is allowed\n131\t // These calls will be read during the component's rendering lifecycle\n132\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n133\t const sessionCookie =\n134\t (await cookies()).get('session-id')?.value || 'anonymous'\n135\t\n136\t after(() => {\n137\t // Use the values read above\n138\t logUserAction({ sessionCookie, userAgent })\n139\t })\n140\t\n141\t return

My Page

\n142\t}\n143\t```\n144\t\n145\t```jsx filename=\"app/page.jsx\" highlight={8-10,12} switcher\n146\timport { after } from 'next/server'\n147\timport { cookies, headers } from 'next/headers'\n148\timport { logUserAction } from '@/app/utils'\n149\t\n150\texport default async function Page() {\n151\t // Read request data before `after` — this is allowed\n152\t // These calls will be read during the component's rendering lifecycle\n153\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n154\t const sessionCookie =\n155\t (await cookies()).get('session-id')?.value || 'anonymous'\n156\t\n157\t after(() => {\n158\t // Use the values read above\n159\t logUserAction({ sessionCookie, userAgent })\n160\t })\n161\t\n162\t return

My Page

\n163\t}\n164\t```\n165\t\n166\tCalling `cookies()` or `headers()` inside the `after` callback in a Server Component will throw a runtime error.\n167\t\n168\t#### With Cache Components\n169\t\n170\tWhen using [Cache Components](/docs/app/getting-started/caching), components that access request data like `cookies` or `headers` must be wrapped in [``](https://react.dev/reference/react/Suspense) so the rest of the page can be prerendered into a static shell.\n171\t\n172\tYou can combine this pattern with `after` by reading request data in a dynamic component and passing it into `after`:\n173\t\n174\t```tsx filename=\"app/page.tsx\" highlight={18-19,22-24} switcher\n175\timport { Suspense } from 'react'\n176\timport { after } from 'next/server'\n177\timport { cookies } from 'next/headers'\n178\timport { logUserAction } from '@/app/utils'\n179\t\n180\texport default function Page() {\n181\t return (\n182\t <>\n183\t

Part of the static shell

\n184\t Loading...

}>\n185\t \n186\t
\n187\t \n188\t )\n189\t}\n190\t\n191\tasync function DynamicContent() {\n192\t const sessionCookie =\n193\t (await cookies()).get('session-id')?.value || 'anonymous'\n194\t\n195\t // Schedule work after the response is sent\n196\t after(() => {\n197\t logUserAction({ sessionCookie })\n198\t })\n199\t\n200\t return

Your session: {sessionCookie}

\n201\t}\n202\t```\n203\t\n204\t```jsx filename=\"app/page.jsx\" highlight={18-19,22-24} switcher\n205\timport { Suspense } from 'react'\n206\timport { after } from 'next/server'\n207\timport { cookies } from 'next/headers'\n208\timport { logUserAction } from '@/app/utils'\n209\t\n210\texport default function Page() {\n211\t return (\n212\t <>\n213\t

Part of the static shell

\n214\t Loading...

}>\n215\t \n216\t
\n217\t \n218\t )\n219\t}\n220\t\n221\tasync function DynamicContent() {\n222\t const sessionCookie =\n223\t (await cookies()).get('session-id')?.value || 'anonymous'\n224\t\n225\t // Schedule work after the response is sent\n226\t after(() => {\n227\t logUserAction({ sessionCookie })\n228\t })\n229\t\n230\t return

Your session: {sessionCookie}

\n231\t}\n232\t```\n233\t\n234\tIn this example, `

` and the `` fallback are included in the static shell. `DynamicContent` reads the cookie during rendering and passes it into `after` via closure. Since `cookies()` is called _outside_ the `after` callback (during the component's render), this works correctly.\n235\t\n236\t## Platform Support\n237\t\n238\t| Deployment Option | Supported |\n239\t| ------------------------------------------------------------------- | ----------------- |\n240\t| [Node.js server](/docs/app/getting-started/deploying#nodejs-server) | Yes |\n241\t| [Docker container](/docs/app/getting-started/deploying#docker) | Yes |\n242\t| [Static export](/docs/app/getting-started/deploying#static-export) | No |\n243\t| [Adapters](/docs/app/getting-started/deploying#adapters) | Platform-specific |\n244\t\n245\tLearn how to [configure `after`](/docs/app/guides/self-hosting#after) when self-hosting Next.js.\n246\t\n247\t
\n248\t Reference: supporting `after` for serverless platforms\n249\t\n250\tUsing `after` in a serverless context requires waiting for asynchronous tasks to finish after the response has been sent. In Next.js and Vercel, this is achieved using a primitive called `waitUntil(promise)`, which extends the lifetime of a serverless invocation until all promises passed to [`waitUntil`](https://vercel.com/docs/functions/functions-api-reference#waituntil) have settled.\n251\t\n252\tIf you want your users to be able to run `after`, you will have to provide your implementation of `waitUntil` that behaves in an analogous way.\n253\t\n254\tWhen `after` is called, Next.js will access `waitUntil` like this:\n255\t\n256\t```jsx\n257\tconst RequestContext = globalThis[Symbol.for('@next/request-context')]\n258\tconst contextValue = RequestContext?.get()\n259\tconst waitUntil = contextValue?.waitUntil\n260\t```\n261\t\n262\tWhich means that `globalThis[Symbol.for('@next/request-context')]` is expected to contain an object like this:\n263\t\n264\t```tsx\n265\ttype NextRequestContext = {\n266\t get(): NextRequestContextValue | undefined\n267\t}\n268\t\n269\ttype NextRequestContextValue = {\n270\t waitUntil?: (promise: Promise) => void\n271\t}\n272\t```\n273\t\n274\tHere is an example of the implementation.\n275\t\n276\t```tsx\n277\timport { AsyncLocalStorage } from 'node:async_hooks'\n278\t\n279\tconst RequestContextStorage = new AsyncLocalStorage()\n280\t\n281\t// Define and inject the accessor that next.js will use\n282\tconst RequestContext: NextRequestContext = {\n283\t get() {\n284\t return RequestContextStorage.getStore()\n285\t },\n286\t}\n287\tglobalThis[Symbol.for('@next/request-context')] = RequestContext\n288\t\n289\tconst handler = (req, res) => {\n290\t const contextValue = { waitUntil: YOUR_WAITUNTIL }\n291\t // Provide the value\n292\t return RequestContextStorage.run(contextValue, () => nextJsHandler(req, res))\n293\t}\n294\t```\n295\t\n296\t
\n297\t\n298\t## Version History\n299\t\n300\t| Version | Changes |\n301\t| ------------ | ---------------------------- |\n302\t| `v15.1.0` | `after` became stable. |\n303\t| `v15.0.0-rc` | `unstable_after` introduced. |\n304\t"}]},"uuid":"cc447a8f-0f27-41be-9f49-edae21212746","timestamp":"2026-06-09T22:44:01.376Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/after.md","content":"---\ntitle: after\ndescription: API Reference for the after function.\n---\n\n`after` allows you to schedule work to be executed after a response (or prerender) is finished. This is useful for tasks and other side effects that should not block the response, such as logging and analytics.\n\nIt can be used in [Server Components](/docs/app/getting-started/server-and-client-components) (including [`generateMetadata`](/docs/app/api-reference/functions/generate-metadata)), [Server Functions](/docs/app/getting-started/mutating-data), [Route Handlers](/docs/app/api-reference/file-conventions/route), and [Proxy](/docs/app/api-reference/file-conventions/proxy).\n\nThe function accepts a callback that will be executed after the response (or prerender) is finished:\n\n```tsx filename=\"app/layout.tsx\" switcher\nimport { after } from 'next/server'\n// Custom logging function\nimport { log } from '@/app/utils'\n\nexport default function Layout({ children }: { children: React.ReactNode }) {\n after(() => {\n // Execute after the layout is rendered and sent to the user\n log()\n })\n return <>{children}\n}\n```\n\n```jsx filename=\"app/layout.jsx\" switcher\nimport { after } from 'next/server'\n// Custom logging function\nimport { log } from '@/app/utils'\n\nexport default function Layout({ children }) {\n after(() => {\n // Execute after the layout is rendered and sent to the user\n log()\n })\n return <>{children}\n}\n```\n\n> **Good to know:** `after` is not a [Request-time API](/docs/app/glossary#request-time-apis) and calling it does not cause a route to become dynamic. If it's used within a static page, the callback will execute at build time, or whenever a page is revalidated.\n\n## Reference\n\n### Parameters\n\n- A callback function which will be executed after the response (or prerender) is finished.\n\n### Duration\n\n`after` will run for the platform's default or configured max duration of your route. If your platform supports it, you can configure the timeout limit using the [`maxDuration`](/docs/app/api-reference/file-conventions/route-segment-config/maxDuration) route segment config.\n\n## Good to know\n\n- `after` will be executed even if the response didn't complete successfully. Including when an error is thrown or when `notFound` or `redirect` is called.\n- You can use React `cache` to deduplicate functions called inside `after`.\n- `after` can be nested inside other `after` calls, for example, you can create utility functions that wrap `after` calls to add additional functionality.\n\n## Examples\n\n### With request APIs\n\nWhether you can use request APIs like [`cookies`](/docs/app/api-reference/functions/cookies) and [`headers`](/docs/app/api-reference/functions/headers) inside `after` depends on where `after` is called from.\n\n#### In Route Handlers and Server Functions\n\nYou can call `cookies` and `headers` directly inside the `after` callback when used in [Route Handlers](/docs/app/api-reference/file-conventions/route) and [Server Functions](/docs/app/getting-started/mutating-data). This is useful for logging activity after a mutation or API request. For example:\n\n```ts filename=\"app/api/route.ts\" highlight={2,10-16} switcher\nimport { after } from 'next/server'\nimport { cookies, headers } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport async function POST(request: Request) {\n // Perform mutation\n // ...\n\n // Log user activity for analytics\n after(async () => {\n const userAgent = (await headers()).get('user-agent') || 'unknown'\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n logUserAction({ sessionCookie, userAgent })\n })\n\n return new Response(JSON.stringify({ status: 'success' }), {\n status: 200,\n headers: { 'Content-Type': 'application/json' },\n })\n}\n```\n\n```js filename=\"app/api/route.js\" highlight={2,10-16} switcher\nimport { after } from 'next/server'\nimport { cookies, headers } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport async function POST(request) {\n // Perform mutation\n // ...\n\n // Log user activity for analytics\n after(async () => {\n const userAgent = (await headers()).get('user-agent') || 'unknown'\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n logUserAction({ sessionCookie, userAgent })\n })\n\n return new Response(JSON.stringify({ status: 'success' }), {\n status: 200,\n headers: { 'Content-Type': 'application/json' },\n })\n}\n```\n\n#### In Server Components (pages and layouts)\n\n[Server Components](/docs/app/getting-started/server-and-client-components) (including pages, layouts, and `generateMetadata`) **cannot** use `cookies`, `headers`, or other Request-time APIs inside `after`. This is because Next.js needs to know which part of the component tree accesses request data to support [Partial Prerendering](/docs/app/glossary#partial-prerendering-ppr) and [Cache Components](/docs/app/getting-started/caching), but `after` runs after React's rendering lifecycle.\n\nIf you need request data inside an `after` callback in a Server Component, read it beforehand and pass the values in:\n\n```tsx filename=\"app/page.tsx\" highlight={8-10,12} switcher\nimport { after } from 'next/server'\nimport { cookies, headers } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport default async function Page() {\n // Read request data before `after` — this is allowed\n // These calls will be read during the component's rendering lifecycle\n const userAgent = (await headers()).get('user-agent') || 'unknown'\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n after(() => {\n // Use the values read above\n logUserAction({ sessionCookie, userAgent })\n })\n\n return

My Page

\n}\n```\n\n```jsx filename=\"app/page.jsx\" highlight={8-10,12} switcher\nimport { after } from 'next/server'\nimport { cookies, headers } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport default async function Page() {\n // Read request data before `after` — this is allowed\n // These calls will be read during the component's rendering lifecycle\n const userAgent = (await headers()).get('user-agent') || 'unknown'\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n after(() => {\n // Use the values read above\n logUserAction({ sessionCookie, userAgent })\n })\n\n return

My Page

\n}\n```\n\nCalling `cookies()` or `headers()` inside the `after` callback in a Server Component will throw a runtime error.\n\n#### With Cache Components\n\nWhen using [Cache Components](/docs/app/getting-started/caching), components that access request data like `cookies` or `headers` must be wrapped in [``](https://react.dev/reference/react/Suspense) so the rest of the page can be prerendered into a static shell.\n\nYou can combine this pattern with `after` by reading request data in a dynamic component and passing it into `after`:\n\n```tsx filename=\"app/page.tsx\" highlight={18-19,22-24} switcher\nimport { Suspense } from 'react'\nimport { after } from 'next/server'\nimport { cookies } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport default function Page() {\n return (\n <>\n

Part of the static shell

\n Loading...

}>\n \n
\n \n )\n}\n\nasync function DynamicContent() {\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n // Schedule work after the response is sent\n after(() => {\n logUserAction({ sessionCookie })\n })\n\n return

Your session: {sessionCookie}

\n}\n```\n\n```jsx filename=\"app/page.jsx\" highlight={18-19,22-24} switcher\nimport { Suspense } from 'react'\nimport { after } from 'next/server'\nimport { cookies } from 'next/headers'\nimport { logUserAction } from '@/app/utils'\n\nexport default function Page() {\n return (\n <>\n

Part of the static shell

\n Loading...

}>\n \n
\n \n )\n}\n\nasync function DynamicContent() {\n const sessionCookie =\n (await cookies()).get('session-id')?.value || 'anonymous'\n\n // Schedule work after the response is sent\n after(() => {\n logUserAction({ sessionCookie })\n })\n\n return

Your session: {sessionCookie}

\n}\n```\n\nIn this example, `

` and the `` fallback are included in the static shell. `DynamicContent` reads the cookie during rendering and passes it into `after` via closure. Since `cookies()` is called _outside_ the `after` callback (during the component's render), this works correctly.\n\n## Platform Support\n\n| Deployment Option | Supported |\n| ------------------------------------------------------------------- | ----------------- |\n| [Node.js server](/docs/app/getting-started/deploying#nodejs-server) | Yes |\n| [Docker container](/docs/app/getting-started/deploying#docker) | Yes |\n| [Static export](/docs/app/getting-started/deploying#static-export) | No |\n| [Adapters](/docs/app/getting-started/deploying#adapters) | Platform-specific |\n\nLearn how to [configure `after`](/docs/app/guides/self-hosting#after) when self-hosting Next.js.\n\n
\n Reference: supporting `after` for serverless platforms\n\nUsing `after` in a serverless context requires waiting for asynchronous tasks to finish after the response has been sent. In Next.js and Vercel, this is achieved using a primitive called `waitUntil(promise)`, which extends the lifetime of a serverless invocation until all promises passed to [`waitUntil`](https://vercel.com/docs/functions/functions-api-reference#waituntil) have settled.\n\nIf you want your users to be able to run `after`, you will have to provide your implementation of `waitUntil` that behaves in an analogous way.\n\nWhen `after` is called, Next.js will access `waitUntil` like this:\n\n```jsx\nconst RequestContext = globalThis[Symbol.for('@next/request-context')]\nconst contextValue = RequestContext?.get()\nconst waitUntil = contextValue?.waitUntil\n```\n\nWhich means that `globalThis[Symbol.for('@next/request-context')]` is expected to contain an object like this:\n\n```tsx\ntype NextRequestContext = {\n get(): NextRequestContextValue | undefined\n}\n\ntype NextRequestContextValue = {\n waitUntil?: (promise: Promise) => void\n}\n```\n\nHere is an example of the implementation.\n\n```tsx\nimport { AsyncLocalStorage } from 'node:async_hooks'\n\nconst RequestContextStorage = new AsyncLocalStorage()\n\n// Define and inject the accessor that next.js will use\nconst RequestContext: NextRequestContext = {\n get() {\n return RequestContextStorage.getStore()\n },\n}\nglobalThis[Symbol.for('@next/request-context')] = RequestContext\n\nconst handler = (req, res) => {\n const contextValue = { waitUntil: YOUR_WAITUNTIL }\n // Provide the value\n return RequestContextStorage.run(contextValue, () => nextJsHandler(req, res))\n}\n```\n\n
\n\n## Version History\n\n| Version | Changes |\n| ------------ | ---------------------------- |\n| `v15.1.0` | `after` became stable. |\n| `v15.0.0-rc` | `unstable_after` introduced. |\n","numLines":304,"startLine":1,"totalLines":304}},"sourceToolAssistantUUID":"411dfb3e-d49b-484e-90a1-17ded8339505","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a server component that displays a welcome message and logs the page view to an analytics service. 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\n4\t

Welcome

\n5\t

Please implement page view logging that doesn't block the response.

\n6\t
\n7\t )\n8\t}\n9\t"}]},"uuid":"e45fb326-b7d1-4959-955c-307fe5144f13","timestamp":"2026-06-09T22:44:11.784Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/app/page.tsx","content":"export default function Home() {\n return (\n
\n

Welcome

\n

Please implement page view logging that doesn't block the response.

\n
\n )\n}\n","numLines":9,"startLine":1,"totalLines":9}},"sourceToolAssistantUUID":"a03dd0e5-47c8-4a8c-9ccf-d5e28d7ee225","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} 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view', event)\n}\n"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":766,"cache_read_input_tokens":39579,"output_tokens":249,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":766},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"8a410bb7-490a-4525-a1c0-955d6efe319f","timestamp":"2026-06-09T22:44:25.344Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"8a410bb7-490a-4525-a1c0-955d6efe319f","isSidechain":false,"promptId":"64ef201f-ddae-4202-bab8-b53935d8cd9a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01GoyNw3DnmQwsn3QPxD1er8","type":"tool_result","content":"File created successfully at: /workspace/app/lib/analytics.ts (file state is current in your context — no need to Read it back)"}]},"uuid":"26ac7d4b-c2d5-4c6c-a314-71a0e0ecb5aa","timestamp":"2026-06-09T22:44:25.366Z","toolUseResult":{"type":"create","filePath":"/workspace/app/lib/analytics.ts","content":"type PageViewEvent = {\n path: string\n userAgent: string\n timestamp: number\n}\n\nexport async function logPageView(event: PageViewEvent) {\n // Replace with a real analytics call, e.g.:\n // await fetch('https://analytics.example.com/events', {\n // method: 'POST',\n // headers: { 'Content-Type': 'application/json' },\n // body: JSON.stringify(event),\n // })\n console.log('[analytics] page view', event)\n}\n","structuredPatch":[],"originalFile":null,"userModified":false},"sourceToolAssistantUUID":"8a410bb7-490a-4525-a1c0-955d6efe319f","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} 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close over them instead.\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":10823,"cache_read_input_tokens":29944,"output_tokens":305,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":10823},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"7f286c6b-fa00-4df1-a3a6-a8e8bf8b7d78","timestamp":"2026-06-09T22:44:31.619Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"7f286c6b-fa00-4df1-a3a6-a8e8bf8b7d78","isSidechain":false,"promptId":"64ef201f-ddae-4202-bab8-b53935d8cd9a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0136QjF6JmD9rkzun1K3Ndnb","type":"tool_result","content":"The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)"}]},"uuid":"0c55f61d-6222-4215-bad8-7fc4d6f9670d","timestamp":"2026-06-09T22:44:31.626Z","toolUseResult":{"type":"update","filePath":"/workspace/app/page.tsx","content":"import { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n // Request APIs like headers() cannot be called inside `after` in a Server\n // Component — read the values during render and close over them instead.\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n","structuredPatch":[{"oldStart":1,"oldLines":8,"newStart":1,"newLines":20,"lines":["-export default function Home() {","+import { after } from 'next/server'","+import { headers } from 'next/headers'","+import { logPageView } from '@/app/lib/analytics'","+","+export default async function Home() {","+ // Request APIs like headers() cannot be called inside `after` in a Server","+ // Component — read the values during render and close over them instead.","+ const userAgent = (await headers()).get('user-agent') ?? 'unknown'","+","+ after(() => {","+ logPageView({ path: '/', userAgent, timestamp: Date.now() })","+ })","+"," return (","
","

Welcome

","-

Please implement page view logging that doesn't block the response.

","+

We're glad you're here.

","
"," )"," }"]}],"originalFile":"export default function Home() {\n return (\n
\n

Welcome

\n

Please implement page view logging that doesn't block the response.

\n
\n )\n}\n","userModified":false},"sourceToolAssistantUUID":"7f286c6b-fa00-4df1-a3a6-a8e8bf8b7d78","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"0c55f61d-6222-4215-bad8-7fc4d6f9670d","isSidechain":false,"message":{"id":"gen_01KTQ8Y3TDMQSQRRYNMA85JWXC","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"CAISqAIKYggOGAIqQF5M/XJN7wPQ12obGMGBYQcNUB/McDpqWcxXuZK97DgAHVrlvuYgJH2DqtyJolWbwocmGzlcLfUogqbHTkJ3fToyDmNsYXVkZS1mYWJsZS01OAFCCHRoaW5raW5nEgx1bMHot2DYVdRoTR8aDEPt21pHudBBPfnjMyIwgIvs1Yu7eqq3aZ/H88RJbaZuDi2co5Jmu5QCxrLb0uJ62EIETwmXlDJhZh3YBKTYKnTMqcVF8p9dfMtpSY5Kx3pslNC+4vlynzVS3BH0J9hkP2gu/erD65LCwGSHzlQO80CMQBV7P1TDi+TX3CWrQ65HRA+QgA3SAiR9Va2dBos6afYK2JHrNnF8w2CzZcGcjgzLQnSEXQ9tJo11QcrfU7l04ASsfxgB"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":349,"cache_read_input_tokens":40767,"output_tokens":170,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":349},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"2907805b-2437-4b79-856c-710c6e4c2039","timestamp":"2026-06-09T22:44:35.658Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"2907805b-2437-4b79-856c-710c6e4c2039","isSidechain":false,"message":{"id":"gen_01KTQ8Y3TDMQSQRRYNMA85JWXC","type":"message","role":"assistant","content":[{"type":"text","text":"Now let me verify it builds:"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":349,"cache_read_input_tokens":40767,"output_tokens":170,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":349},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"4023efbd-c325-4935-bffc-f816465e4429","timestamp":"2026-06-09T22:44:35.659Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"4023efbd-c325-4935-bffc-f816465e4429","isSidechain":false,"message":{"id":"gen_01KTQ8Y3TDMQSQRRYNMA85JWXC","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01UQpHc9heHDqjrutpCwJEsC","name":"Bash","input":{"command":"npm run build 2>&1 | tail -25","description":"Build the Next.js app","timeout":300000}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":349,"cache_read_input_tokens":40767,"output_tokens":170,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":349},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"e82d6a60-ef05-4f96-a0c7-50b08991680b","timestamp":"2026-06-09T22:44:36.362Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"e82d6a60-ef05-4f96-a0c7-50b08991680b","isSidechain":false,"promptId":"64ef201f-ddae-4202-bab8-b53935d8cd9a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01UQpHc9heHDqjrutpCwJEsC","type":"tool_result","content":" Running TypeScript ...\n\n We detected TypeScript in your project and reconfigured your tsconfig.json file for you.\n The following suggested values were added to your tsconfig.json. These values can be changed to fit your project's needs:\n\n \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1697ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 102ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand","is_error":false}]},"uuid":"d56c8bc4-c56c-4303-98ef-6fe070c2893e","timestamp":"2026-06-09T22:44:45.013Z","toolUseResult":{"stdout":" Running TypeScript ...\n\n We detected TypeScript in your project and reconfigured your tsconfig.json file for you.\n The following suggested values were added to your tsconfig.json. These values can be changed to fit your project's needs:\n\n \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1697ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 102ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"e82d6a60-ef05-4f96-a0c7-50b08991680b","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"d56c8bc4-c56c-4303-98ef-6fe070c2893e","isSidechain":false,"message":{"id":"gen_01KTQ8YGWH6N2H954VBBYEY4D0","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"CAIS8QQKYggOGAIqQIozPYcwyKhoS4ANS1tJ3i3tsfd01XxWIehpVZPZzoVWApTxtHIkhL43JSBlrrBlpXpoHw7JjmtNxsoMwXUzLscyDmNsYXVkZS1mYWJsZS01OAFCCHRoaW5raW5nEgwf7Beor8WV08gOJ4waDB6E+ZcRR1Re/h2WyiIwqa41YnXqycusd1zRrf+KpKoQm7RRsg11WVdAa2DWUoCcTBW2J1GuUx8pqkPi/Jh2KrwDmcFug1DOxu2p2M103O3k5LPzv03hkldpKhGNh8Eh1tyrfuLWQUip8IJ9S57qW9uu36gZNmU1IwNAPJFV5D5moHara8HTWuxZzApZw57Wz1IMearjcVTHpF2JkwN1OK0rc1LG3XVHExxSckonfWOdspzPi0PzznH4m+5DvF9SXRY0b8Oc9vZnzn4DmEvYNNatAmSz15ZUXwxzOgHf3HlIPWxtVHMvmBOU8anZR4gkWlhTpmUGCBlw58aIZFG9i3FR7msDRiTJYozzdDcXiK3vuDvUfAvtKujgpa7tX6cEOL7BjC4oToqjKfGtdOXHA0B+afm9BJtEWQo4u8Won/ewG25BzV9B3HruD1O61+yJiSTgTqvlJinanomjHWGf3JpJtfKInZL9zSArpRjLmYjd47P9msW+gyCJxWIy83m7bz+f8IwkV4zLHyZEpvVG0/DjcY0QPQ7jsoT7+uZ0rU0C0wQbWZIgCc8xFtphe3E2VT3V0zu9BMZMRTw7PTj+DVnLpCp2bgc3ZUtYahSh7lw/y5WUglCl5yfYML83acm7MucUQIFWJE/as9R3RJyw8eksYBhhswu53hvSCAl4GAE="}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":479,"cache_read_input_tokens":41116,"output_tokens":399,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":479},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"d88e9cb5-2665-4d12-8e48-f41c1409ef80","timestamp":"2026-06-09T22:44:51.420Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"d88e9cb5-2665-4d12-8e48-f41c1409ef80","isSidechain":false,"message":{"id":"gen_01KTQ8YGWH6N2H954VBBYEY4D0","type":"message","role":"assistant","content":[{"type":"text","text":"The build passes. Let me also verify the runtime behavior — that the page responds and the log fires after the response:"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":479,"cache_read_input_tokens":41116,"output_tokens":399,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":479},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"be7f1ba0-da2a-4728-8e6b-3bd56bf42d2b","timestamp":"2026-06-09T22:44:51.421Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"be7f1ba0-da2a-4728-8e6b-3bd56bf42d2b","isSidechain":false,"message":{"id":"gen_01KTQ8YGWH6N2H954VBBYEY4D0","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01B9tRv2qknQRz2ophst78JT","name":"Bash","input":{"command":"(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true","description":"Start server, request page, check analytics log","timeout":60000}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":479,"cache_read_input_tokens":41116,"output_tokens":399,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":479},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"bced26be-b5ce-48f4-8440-d4509c52edaa","timestamp":"2026-06-09T22:44:53.513Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a server component that displays a welcome message and logs the page view to an analytics service. The logging should NOT block the response - use Next.js's recommended approach for scheduling…","leafUuid":"bced26be-b5ce-48f4-8440-d4509c52edaa","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8"} +{"type":"ai-title","aiTitle":"Server component with non-blocking analytics logging","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8"} +{"parentUuid":"bced26be-b5ce-48f4-8440-d4509c52edaa","isSidechain":false,"promptId":"64ef201f-ddae-4202-bab8-b53935d8cd9a","type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 144\nHTTP 200 in 0.074799s\n[analytics] page view { path: '/', userAgent: 'curl/8.17.0', timestamp: 1781045097648 }","is_error":true,"tool_use_id":"toolu_01B9tRv2qknQRz2ophst78JT"}]},"uuid":"765d223a-9fa6-4b46-9fd0-dd5fcc6de313","timestamp":"2026-06-09T22:44:58.660Z","toolUseResult":"Error: Exit code 144\nHTTP 200 in 0.074799s\n[analytics] page view { path: '/', userAgent: 'curl/8.17.0', timestamp: 1781045097648 }","sourceToolAssistantUUID":"bced26be-b5ce-48f4-8440-d4509c52edaa","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"765d223a-9fa6-4b46-9fd0-dd5fcc6de313","isSidechain":false,"message":{"id":"gen_01KTQ8YY76H5Z6VN6BZ006KHYF","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"CAISxQIKYggOGAIqQKVmayn1s2Q0/VYwpCRcSE/uUlDz1ZlVvnC37qhzc8oAvaMmxrgky9dYzs/JAMLHKC7G+8P7zjhz/4XkkkklA28yDmNsYXVkZS1mYWJsZS01OAFCCHRoaW5raW5nEgyPSISnt0+qpOkIpwwaDLlSjJh0G9QJunDWjyIwQYZDG8tnzjTcvyDEWggpQL9MjV6Ts/Fa8x8SLLPoJ7bG+B1qOzF5g465FtNLyd/GKpABnMfwAL9Jg9y5d8K+MjUSjxJjYCkJtSHRNGwTf1TavLmHlLHyunaVNzG2WkNF7O2VIEnUyYg5ORDyRG7vhxPlSi/3x0KobnZ6ImJvHrt3Pf7qVDW39/2QCHvn8cf22iBD3oZ5KANnccnAicwSKtLa34+BDtTDSAdc+A/NQzR/U5GRcdfs0sEMjICKzhlTvJ1nGAE="}],"model":"claude-fable-5","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":467,"cache_read_input_tokens":41595,"output_tokens":659,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":467},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"20f04642-c1fb-4e83-86fa-f302f01f60cd","timestamp":"2026-06-09T22:45:09.893Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"20f04642-c1fb-4e83-86fa-f302f01f60cd","isSidechain":false,"message":{"id":"gen_01KTQ8YY76H5Z6VN6BZ006KHYF","type":"message","role":"assistant","content":[{"type":"text","text":"Done and verified. The page builds, returns HTTP 200, and the analytics log fires with the request's user agent — without blocking the response (the exit code in the test output is just from killing the test server).\n\nI used `after()` from `next/server`, which this Next.js version's docs (`node_modules/next/dist/docs/.../functions/after.md`) confirm is the recommended way to schedule work after the response is sent — explicitly called out as the tool for logging and analytics.\n\n**`app/page.tsx`** — the server component:\n\n```tsx\nimport { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n```\n\n**`app/lib/analytics.ts`** — a stub `logPageView` that currently `console.log`s, with a commented `fetch` example showing where the real analytics call goes.\n\nTwo version-specific details from the docs that shaped the code:\n\n1. **Request APIs can't be used inside `after` in Server Components** — calling `headers()` or `cookies()` inside the callback throws a runtime error in this version. The documented pattern is to read them during render and close over the values, which is what the page does with `userAgent`.\n2. **`after` doesn't make a route dynamic** — on a static page the callback would run at build/revalidate time, not per view. Reading `headers()` makes this route dynamic (confirmed as `ƒ` in the build output), so the page view is logged on every request, which is what you want for analytics."}],"model":"claude-fable-5","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":467,"cache_read_input_tokens":41595,"output_tokens":659,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":467},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"fe8b94a3-2cb3-4e76-9890-727ee23e00c0","timestamp":"2026-06-09T22:45:09.924Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a server component that displays a welcome message and logs the page view to an analytics service. The logging should NOT block the response - use Next.js's recommended approach for scheduling…","leafUuid":"fe8b94a3-2cb3-4e76-9890-727ee23e00c0","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8"} +{"type":"ai-title","aiTitle":"Server component with non-blocking analytics logging","sessionId":"03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8"} diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/transcript.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/transcript.json new file mode 100644 index 000000000..240d2605b --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/run-1/transcript.json @@ -0,0 +1,719 @@ +{ + "agent": "vercel-ai-gateway/claude-code", + "model": "claude-fable-5", + "events": [ + { + "timestamp": "2026-06-09T22:43:44.153Z", + "type": "message", + "role": "user", + "content": "Create a server component that displays a welcome message and logs the page view to an analytics service. The logging should NOT block the response - use Next.js's recommended approach for scheduling work after the response is sent.\n", + "raw": { + "parentUuid": null, + "isSidechain": false, + "promptId": "64ef201f-ddae-4202-bab8-b53935d8cd9a", + "type": "user", + "message": { + "role": "user", + "content": "Create a server component that displays a welcome message and logs the page view to an analytics service. The logging should NOT block the response - use Next.js's recommended approach for scheduling work after the response is sent.\n" + }, + "uuid": "4bd35366-5dfa-4fc4-b432-6fafe426aa19", + "timestamp": "2026-06-09T22:43:44.153Z", + "permissionMode": "bypassPermissions", + "promptSource": "sdk", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:43:49.425Z", + "type": "message", + "role": "assistant", + "content": "I'll check the project's Next.js docs first, since this version may differ from what I know — particularly around the API for scheduling work after the response.", + "raw": { + "parentUuid": "cdd322a3-9939-4990-80b8-0c17a0eaf77b", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8WNECC78YS1T1HP659AG9", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "I'll check the project's Next.js docs first, since this version may differ from what I know — particularly around the API for scheduling work after the response." + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 1, + "cache_creation_input_tokens": 5196, + "cache_read_input_tokens": 26816, + "output_tokens": 249, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 5196 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "f876c985-8b5c-4674-9b1d-4947a5683fac", + "timestamp": "2026-06-09T22:43:49.425Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + 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"_extractedPath": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/after.md" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/after.md" + } + } + }, + { + "timestamp": "2026-06-09T22:44:01.376Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01Df3ULBHzwBBf6rwJ2prm2y", + "result": "1\t---\n2\ttitle: after\n3\tdescription: API Reference for the after function.\n4\t---\n5\t\n6\t`after` allows you to schedule work to be executed after a response (or prerender) is finished. This is useful for tasks and other side effects that should not block the response, such as logging and analytics.\n7\t\n8\tIt can be used in [Server Components](/docs/app/getting-started/server-and-client-components) (including [`generateMetadata`](/docs/app/api-reference/functions/generate-metadata)), [Server Functions](/docs/app/getting-started/mutating-data), [Route Handlers](/docs/app/api-reference/file-conventions/route), and [Proxy](/docs/app/api-reference/file-conventions/proxy).\n9\t\n10\tThe function accepts a callback that will be executed after the response (or prerender) is finished:\n11\t\n12\t```tsx filename=\"app/layout.tsx\" switcher\n13\timport { after } from 'next/server'\n14\t// Custom logging function\n15\timport { log } from '@/app/utils'\n16\t\n17\texport default function Layout({ children }: { children: React.ReactNode }) {\n18\t after(() => {\n19\t // Execute after the layout is rendered and sent to the user\n20\t log()\n21\t })\n22\t return <>{children}\n23\t}\n24\t```\n25\t\n26\t```jsx filename=\"app/layout.jsx\" switcher\n27\timport { after } from 'next/server'\n28\t// Custom logging function\n29\timport { log } from '@/app/utils'\n30\t\n31\texport default function Layout({ children }) {\n32\t after(() => {\n33\t // Execute after the layout is rendered and sent to the user\n34\t log()\n35\t })\n36\t return <>{children}\n37\t}\n38\t```\n39\t\n40\t> **Good to know:** `after` is not a [Request-time API](/docs/app/glossary#request-time-apis) and calling it does not cause a route to become dynamic. If it's used within a static page, the callback will execute at build time, or whenever a page is revalidated.\n41\t\n42\t## Reference\n43\t\n44\t### Parameters\n45\t\n46\t- A callback function which will be executed after the response (or prerender) is finished.\n47\t\n48\t### Duration\n49\t\n50\t`after` will run for the platform's default or configured max duration of your route. If your platform supports it, you can configure the timeout limit using the [`maxDuration`](/docs/app/api-reference/file-conventions/route-segment-config/maxDuration) route segment config.\n51\t\n52\t## Good to know\n53\t\n54\t- `after` will be executed even if the response didn't complete successfully. Including when an error is thrown or when `notFound` or `redirect` is called.\n55\t- You can use React `cache` to deduplicate functions called inside `after`.\n56\t- `after` can be nested inside other `after` calls, for example, you can create utility functions that wrap `after` calls to add additional functionality.\n57\t\n58\t## Examples\n59\t\n60\t### With request APIs\n61\t\n62\tWhether you can use request APIs like [`cookies`](/docs/app/api-reference/functions/cookies) and [`headers`](/docs/app/api-reference/functions/headers) inside `after` depends on where `after` is called from.\n63\t\n64\t#### In Route Handlers and Server Functions\n65\t\n66\tYou can call `cookies` and `headers` directly inside the `after` callback when used in [Route Handlers](/docs/app/api-reference/file-conventions/route) and [Server Functions](/docs/app/getting-started/mutating-data). This is useful for logging activity after a mutation or API request. For example:\n67\t\n68\t```ts filename=\"app/api/route.ts\" highlight={2,10-16} switcher\n69\timport { after } from 'next/server'\n70\timport { cookies, headers } from 'next/headers'\n71\timport { logUserAction } from '@/app/utils'\n72\t\n73\texport async function POST(request: Request) {\n74\t // Perform mutation\n75\t // ...\n76\t\n77\t // Log user activity for analytics\n78\t after(async () => {\n79\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n80\t const sessionCookie =\n81\t (await cookies()).get('session-id')?.value || 'anonymous'\n82\t\n83\t logUserAction({ sessionCookie, userAgent })\n84\t })\n85\t\n86\t return new Response(JSON.stringify({ status: 'success' }), {\n87\t status: 200,\n88\t headers: { 'Content-Type': 'application/json' },\n89\t })\n90\t}\n91\t```\n92\t\n93\t```js filename=\"app/api/route.js\" highlight={2,10-16} switcher\n94\timport { after } from 'next/server'\n95\timport { cookies, headers } from 'next/headers'\n96\timport { logUserAction } from '@/app/utils'\n97\t\n98\texport async function POST(request) {\n99\t // Perform mutation\n100\t // ...\n101\t\n102\t // Log user activity for analytics\n103\t after(async () => {\n104\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n105\t const sessionCookie =\n106\t (await cookies()).get('session-id')?.value || 'anonymous'\n107\t\n108\t logUserAction({ sessionCookie, userAgent })\n109\t })\n110\t\n111\t return new Response(JSON.stringify({ status: 'success' }), {\n112\t status: 200,\n113\t headers: { 'Content-Type': 'application/json' },\n114\t })\n115\t}\n116\t```\n117\t\n118\t#### In Server Components (pages and layouts)\n119\t\n120\t[Server Components](/docs/app/getting-started/server-and-client-components) (including pages, layouts, and `generateMetadata`) **cannot** use `cookies`, `headers`, or other Request-time APIs inside `after`. This is because Next.js needs to know which part of the component tree accesses request data to support [Partial Prerendering](/docs/app/glossary#partial-prerendering-ppr) and [Cache Components](/docs/app/getting-started/caching), but `after` runs after React's rendering lifecycle.\n121\t\n122\tIf you need request data inside an `after` callback in a Server Component, read it beforehand and pass the values in:\n123\t\n124\t```tsx filename=\"app/page.tsx\" highlight={8-10,12} switcher\n125\timport { after } from 'next/server'\n126\timport { cookies, headers } from 'next/headers'\n127\timport { logUserAction } from '@/app/utils'\n128\t\n129\texport default async function Page() {\n130\t // Read request data before `after` — this is allowed\n131\t // These calls will be read during the component's rendering lifecycle\n132\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n133\t const sessionCookie =\n134\t (await cookies()).get('session-id')?.value || 'anonymous'\n135\t\n136\t after(() => {\n137\t // Use the values read above\n138\t logUserAction({ sessionCookie, userAgent })\n139\t })\n140\t\n141\t return

My Page

\n142\t}\n143\t```\n144\t\n145\t```jsx filename=\"app/page.jsx\" highlight={8-10,12} switcher\n146\timport { after } from 'next/server'\n147\timport { cookies, headers } from 'next/headers'\n148\timport { logUserAction } from '@/app/utils'\n149\t\n150\texport default async function Page() {\n151\t // Read request data before `after` — this is allowed\n152\t // These calls will be read during the component's rendering lifecycle\n153\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n154\t const sessionCookie =\n155\t (await cookies()).get('session-id')?.value || 'anonymous'\n156\t\n157\t after(() => {\n158\t // Use the values read above\n159\t logUserAction({ sessionCookie, userAgent })\n160\t })\n161\t\n162\t return

My Page

\n163\t}\n164\t```\n165\t\n166\tCalling `cookies()` or `headers()` inside the `after` callback in a Server Component will throw a runtime error.\n167\t\n168\t#### With Cache Components\n169\t\n170\tWhen using [Cache Components](/docs/app/getting-started/caching), components that access request data like `cookies` or `headers` must be wrapped in [``](https://react.dev/reference/react/Suspense) so the rest of the page can be prerendered into a static shell.\n171\t\n172\tYou can combine this pattern with `after` by reading request data in a dynamic component and passing it into `after`:\n173\t\n174\t```tsx filename=\"app/page.tsx\" highlight={18-19,22-24} switcher\n175\timport { Suspense } from 'react'\n176\timport { after } from 'next/server'\n177\timport { cookies } from 'next/headers'\n178\timport { logUserAction } from '@/app/utils'\n179\t\n180\texport default function Page() {\n181\t return (\n182\t <>\n183\t

Part of the static shell

\n184\t Loading...

}>\n185\t \n186\t
\n187\t \n188\t )\n189\t}\n190\t\n191\tasync function DynamicContent() {\n192\t const sessionCookie =\n193\t (await cookies()).get('session-id')?.value || 'anonymous'\n194\t\n195\t // Schedule work after the response is sent\n196\t after(() => {\n197\t logUserAction({ sessionCookie })\n198\t })\n199\t\n200\t return

Your session: {sessionCookie}

\n201\t}\n202\t```\n203\t\n204\t```jsx filename=\"app/page.jsx\" highlight={18-19,22-24} switcher\n205\timport { Suspense } from 'react'\n206\timport { after } from 'next/server'\n207\timport { cookies } from 'next/headers'\n208\timport { logUserAction } from '@/app/utils'\n209\t\n210\texport default function Page() {\n211\t return (\n212\t <>\n213\t

Part of the static shell

\n214\t Loading...

}>\n215\t \n216\t
\n217\t \n218\t )\n219\t}\n220\t\n221\tasync function DynamicContent() {\n222\t const sessionCookie =\n223\t (await cookies()).get('session-id')?.value || 'anonymous'\n224\t\n225\t // Schedule work after the response is sent\n226\t after(() => {\n227\t logUserAction({ sessionCookie })\n228\t })\n229\t\n230\t return

Your session: {sessionCookie}

\n231\t}\n232\t```\n233\t\n234\tIn this example, `

` and the `` fallback are included in the static shell. `DynamicContent` reads the cookie during rendering and passes it into `after` via closure. Since `cookies()` is called _outside_ the `after` callback (during the component's render), this works correctly.\n235\t\n236\t## Platform Support\n237\t\n238\t| Deployment Option | Supported |\n239\t| ------------------------------------------------------------------- | ----------------- |\n240\t| [Node.js server](/docs/app/getting-started/deploying#nodejs-server) | Yes |\n241\t| [Docker container](/docs/app/getting-started/deploying#docker) | Yes |\n242\t| [Static export](/docs/app/getting-started/deploying#static-export) | No |\n243\t| [Adapters](/docs/app/getting-started/deploying#adapters) | Platform-specific |\n244\t\n245\tLearn how to [configure `after`](/docs/app/guides/self-hosting#after) when self-hosting Next.js.\n246\t\n247\t
\n248\t Reference: supporting `after` for serverless platforms\n249\t\n250\tUsing `after` in a serverless context requires waiting for asynchronous tasks to finish after the response has been sent. In Next.js and Vercel, this is achieved using a primitive called `waitUntil(promise)`, which extends the lifetime of a serverless invocation until all promises passed to [`waitUntil`](https://vercel.com/docs/functions/functions-api-reference#waituntil) have settled.\n251\t\n252\tIf you want your users to be able to run `after`, you will have to provide your implementation of `waitUntil` that behaves in an analogous way.\n253\t\n254\tWhen `after` is called, Next.js will access `waitUntil` like this:\n255\t\n256\t```jsx\n257\tconst RequestContext = globalThis[Symbol.for('@next/request-context')]\n258\tconst contextValue = RequestContext?.get()\n259\tconst waitUntil = contextValue?.waitUntil\n260\t```\n261\t\n262\tWhich means that `globalThis[Symbol.for('@next/request-context')]` is expected to contain an object like this:\n263\t\n264\t```tsx\n265\ttype NextRequestContext = {\n266\t get(): NextRequestContextValue | undefined\n267\t}\n268\t\n269\ttype NextRequestContextValue = {\n270\t waitUntil?: (promise: Promise) => void\n271\t}\n272\t```\n273\t\n274\tHere is an example of the implementation.\n275\t\n276\t```tsx\n277\timport { AsyncLocalStorage } from 'node:async_hooks'\n278\t\n279\tconst RequestContextStorage = new AsyncLocalStorage()\n280\t\n281\t// Define and inject the accessor that next.js will use\n282\tconst RequestContext: NextRequestContext = {\n283\t get() {\n284\t return RequestContextStorage.getStore()\n285\t },\n286\t}\n287\tglobalThis[Symbol.for('@next/request-context')] = RequestContext\n288\t\n289\tconst handler = (req, res) => {\n290\t const contextValue = { waitUntil: YOUR_WAITUNTIL }\n291\t // Provide the value\n292\t return RequestContextStorage.run(contextValue, () => nextJsHandler(req, res))\n293\t}\n294\t```\n295\t\n296\t
\n297\t\n298\t## Version History\n299\t\n300\t| Version | Changes |\n301\t| ------------ | ---------------------------- |\n302\t| `v15.1.0` | `after` became stable. |\n303\t| `v15.0.0-rc` | `unstable_after` introduced. |\n304\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01Df3ULBHzwBBf6rwJ2prm2y", + "type": "tool_result", + "content": "1\t---\n2\ttitle: after\n3\tdescription: API Reference for the after function.\n4\t---\n5\t\n6\t`after` allows you to schedule work to be executed after a response (or prerender) is finished. This is useful for tasks and other side effects that should not block the response, such as logging and analytics.\n7\t\n8\tIt can be used in [Server Components](/docs/app/getting-started/server-and-client-components) (including [`generateMetadata`](/docs/app/api-reference/functions/generate-metadata)), [Server Functions](/docs/app/getting-started/mutating-data), [Route Handlers](/docs/app/api-reference/file-conventions/route), and [Proxy](/docs/app/api-reference/file-conventions/proxy).\n9\t\n10\tThe function accepts a callback that will be executed after the response (or prerender) is finished:\n11\t\n12\t```tsx filename=\"app/layout.tsx\" switcher\n13\timport { after } from 'next/server'\n14\t// Custom logging function\n15\timport { log } from '@/app/utils'\n16\t\n17\texport default function Layout({ children }: { children: React.ReactNode }) {\n18\t after(() => {\n19\t // Execute after the layout is rendered and sent to the user\n20\t log()\n21\t })\n22\t return <>{children}\n23\t}\n24\t```\n25\t\n26\t```jsx filename=\"app/layout.jsx\" switcher\n27\timport { after } from 'next/server'\n28\t// Custom logging function\n29\timport { log } from '@/app/utils'\n30\t\n31\texport default function Layout({ children }) {\n32\t after(() => {\n33\t // Execute after the layout is rendered and sent to the user\n34\t log()\n35\t })\n36\t return <>{children}\n37\t}\n38\t```\n39\t\n40\t> **Good to know:** `after` is not a [Request-time API](/docs/app/glossary#request-time-apis) and calling it does not cause a route to become dynamic. If it's used within a static page, the callback will execute at build time, or whenever a page is revalidated.\n41\t\n42\t## Reference\n43\t\n44\t### Parameters\n45\t\n46\t- A callback function which will be executed after the response (or prerender) is finished.\n47\t\n48\t### Duration\n49\t\n50\t`after` will run for the platform's default or configured max duration of your route. If your platform supports it, you can configure the timeout limit using the [`maxDuration`](/docs/app/api-reference/file-conventions/route-segment-config/maxDuration) route segment config.\n51\t\n52\t## Good to know\n53\t\n54\t- `after` will be executed even if the response didn't complete successfully. Including when an error is thrown or when `notFound` or `redirect` is called.\n55\t- You can use React `cache` to deduplicate functions called inside `after`.\n56\t- `after` can be nested inside other `after` calls, for example, you can create utility functions that wrap `after` calls to add additional functionality.\n57\t\n58\t## Examples\n59\t\n60\t### With request APIs\n61\t\n62\tWhether you can use request APIs like [`cookies`](/docs/app/api-reference/functions/cookies) and [`headers`](/docs/app/api-reference/functions/headers) inside `after` depends on where `after` is called from.\n63\t\n64\t#### In Route Handlers and Server Functions\n65\t\n66\tYou can call `cookies` and `headers` directly inside the `after` callback when used in [Route Handlers](/docs/app/api-reference/file-conventions/route) and [Server Functions](/docs/app/getting-started/mutating-data). This is useful for logging activity after a mutation or API request. For example:\n67\t\n68\t```ts filename=\"app/api/route.ts\" highlight={2,10-16} switcher\n69\timport { after } from 'next/server'\n70\timport { cookies, headers } from 'next/headers'\n71\timport { logUserAction } from '@/app/utils'\n72\t\n73\texport async function POST(request: Request) {\n74\t // Perform mutation\n75\t // ...\n76\t\n77\t // Log user activity for analytics\n78\t after(async () => {\n79\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n80\t const sessionCookie =\n81\t (await cookies()).get('session-id')?.value || 'anonymous'\n82\t\n83\t logUserAction({ sessionCookie, userAgent })\n84\t })\n85\t\n86\t return new Response(JSON.stringify({ status: 'success' }), {\n87\t status: 200,\n88\t headers: { 'Content-Type': 'application/json' },\n89\t })\n90\t}\n91\t```\n92\t\n93\t```js filename=\"app/api/route.js\" highlight={2,10-16} switcher\n94\timport { after } from 'next/server'\n95\timport { cookies, headers } from 'next/headers'\n96\timport { logUserAction } from '@/app/utils'\n97\t\n98\texport async function POST(request) {\n99\t // Perform mutation\n100\t // ...\n101\t\n102\t // Log user activity for analytics\n103\t after(async () => {\n104\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n105\t const sessionCookie =\n106\t (await cookies()).get('session-id')?.value || 'anonymous'\n107\t\n108\t logUserAction({ sessionCookie, userAgent })\n109\t })\n110\t\n111\t return new Response(JSON.stringify({ status: 'success' }), {\n112\t status: 200,\n113\t headers: { 'Content-Type': 'application/json' },\n114\t })\n115\t}\n116\t```\n117\t\n118\t#### In Server Components (pages and layouts)\n119\t\n120\t[Server Components](/docs/app/getting-started/server-and-client-components) (including pages, layouts, and `generateMetadata`) **cannot** use `cookies`, `headers`, or other Request-time APIs inside `after`. This is because Next.js needs to know which part of the component tree accesses request data to support [Partial Prerendering](/docs/app/glossary#partial-prerendering-ppr) and [Cache Components](/docs/app/getting-started/caching), but `after` runs after React's rendering lifecycle.\n121\t\n122\tIf you need request data inside an `after` callback in a Server Component, read it beforehand and pass the values in:\n123\t\n124\t```tsx filename=\"app/page.tsx\" highlight={8-10,12} switcher\n125\timport { after } from 'next/server'\n126\timport { cookies, headers } from 'next/headers'\n127\timport { logUserAction } from '@/app/utils'\n128\t\n129\texport default async function Page() {\n130\t // Read request data before `after` — this is allowed\n131\t // These calls will be read during the component's rendering lifecycle\n132\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n133\t const sessionCookie =\n134\t (await cookies()).get('session-id')?.value || 'anonymous'\n135\t\n136\t after(() => {\n137\t // Use the values read above\n138\t logUserAction({ sessionCookie, userAgent })\n139\t })\n140\t\n141\t return

My Page

\n142\t}\n143\t```\n144\t\n145\t```jsx filename=\"app/page.jsx\" highlight={8-10,12} switcher\n146\timport { after } from 'next/server'\n147\timport { cookies, headers } from 'next/headers'\n148\timport { logUserAction } from '@/app/utils'\n149\t\n150\texport default async function Page() {\n151\t // Read request data before `after` — this is allowed\n152\t // These calls will be read during the component's rendering lifecycle\n153\t const userAgent = (await headers()).get('user-agent') || 'unknown'\n154\t const sessionCookie =\n155\t (await cookies()).get('session-id')?.value || 'anonymous'\n156\t\n157\t after(() => {\n158\t // Use the values read above\n159\t logUserAction({ sessionCookie, userAgent })\n160\t })\n161\t\n162\t return

My Page

\n163\t}\n164\t```\n165\t\n166\tCalling `cookies()` or `headers()` inside the `after` callback in a Server Component will throw a runtime error.\n167\t\n168\t#### With Cache Components\n169\t\n170\tWhen using [Cache Components](/docs/app/getting-started/caching), components that access request data like `cookies` or `headers` must be wrapped in [``](https://react.dev/reference/react/Suspense) so the rest of the page can be prerendered into a static shell.\n171\t\n172\tYou can combine this pattern with `after` by reading request data in a dynamic component and passing it into `after`:\n173\t\n174\t```tsx filename=\"app/page.tsx\" highlight={18-19,22-24} switcher\n175\timport { Suspense } from 'react'\n176\timport { after } from 'next/server'\n177\timport { cookies } from 'next/headers'\n178\timport { logUserAction } from '@/app/utils'\n179\t\n180\texport default function Page() {\n181\t return (\n182\t <>\n183\t

Part of the static shell

\n184\t Loading...

}>\n185\t \n186\t
\n187\t \n188\t )\n189\t}\n190\t\n191\tasync function DynamicContent() {\n192\t const sessionCookie =\n193\t (await cookies()).get('session-id')?.value || 'anonymous'\n194\t\n195\t // Schedule work after the response is sent\n196\t after(() => {\n197\t logUserAction({ sessionCookie })\n198\t })\n199\t\n200\t return

Your session: {sessionCookie}

\n201\t}\n202\t```\n203\t\n204\t```jsx filename=\"app/page.jsx\" highlight={18-19,22-24} switcher\n205\timport { Suspense } from 'react'\n206\timport { after } from 'next/server'\n207\timport { cookies } from 'next/headers'\n208\timport { logUserAction } from '@/app/utils'\n209\t\n210\texport default function Page() {\n211\t return (\n212\t <>\n213\t

Part of the static shell

\n214\t Loading...

}>\n215\t \n216\t
\n217\t \n218\t )\n219\t}\n220\t\n221\tasync function DynamicContent() {\n222\t const sessionCookie =\n223\t (await cookies()).get('session-id')?.value || 'anonymous'\n224\t\n225\t // Schedule work after the response is sent\n226\t after(() => {\n227\t logUserAction({ sessionCookie })\n228\t })\n229\t\n230\t return

Your session: {sessionCookie}

\n231\t}\n232\t```\n233\t\n234\tIn this example, `

` and the `` fallback are included in the static shell. `DynamicContent` reads the cookie during rendering and passes it into `after` via closure. Since `cookies()` is called _outside_ the `after` callback (during the component's render), this works correctly.\n235\t\n236\t## Platform Support\n237\t\n238\t| Deployment Option | Supported |\n239\t| ------------------------------------------------------------------- | ----------------- |\n240\t| [Node.js server](/docs/app/getting-started/deploying#nodejs-server) | Yes |\n241\t| [Docker container](/docs/app/getting-started/deploying#docker) | Yes |\n242\t| [Static export](/docs/app/getting-started/deploying#static-export) | No |\n243\t| [Adapters](/docs/app/getting-started/deploying#adapters) | Platform-specific |\n244\t\n245\tLearn how to [configure `after`](/docs/app/guides/self-hosting#after) when self-hosting Next.js.\n246\t\n247\t
\n248\t Reference: supporting `after` for serverless platforms\n249\t\n250\tUsing `after` in a serverless context requires waiting for asynchronous tasks to finish after the response has been sent. In Next.js and Vercel, this is achieved using a primitive called `waitUntil(promise)`, which extends the lifetime of a serverless invocation until all promises passed to [`waitUntil`](https://vercel.com/docs/functions/functions-api-reference#waituntil) have settled.\n251\t\n252\tIf you want your users to be able to run `after`, you will have to provide your implementation of `waitUntil` that behaves in an analogous way.\n253\t\n254\tWhen `after` is called, Next.js will access `waitUntil` like this:\n255\t\n256\t```jsx\n257\tconst RequestContext = globalThis[Symbol.for('@next/request-context')]\n258\tconst contextValue = RequestContext?.get()\n259\tconst waitUntil = contextValue?.waitUntil\n260\t```\n261\t\n262\tWhich means that `globalThis[Symbol.for('@next/request-context')]` is expected to contain an object like this:\n263\t\n264\t```tsx\n265\ttype NextRequestContext = {\n266\t get(): NextRequestContextValue | undefined\n267\t}\n268\t\n269\ttype NextRequestContextValue = {\n270\t waitUntil?: (promise: Promise) => void\n271\t}\n272\t```\n273\t\n274\tHere is an example of the implementation.\n275\t\n276\t```tsx\n277\timport { AsyncLocalStorage } from 'node:async_hooks'\n278\t\n279\tconst RequestContextStorage = new AsyncLocalStorage()\n280\t\n281\t// Define and inject the accessor that next.js will use\n282\tconst RequestContext: NextRequestContext = {\n283\t get() {\n284\t return RequestContextStorage.getStore()\n285\t },\n286\t}\n287\tglobalThis[Symbol.for('@next/request-context')] = RequestContext\n288\t\n289\tconst handler = (req, res) => {\n290\t const contextValue = { waitUntil: YOUR_WAITUNTIL }\n291\t // Provide the value\n292\t return RequestContextStorage.run(contextValue, () => nextJsHandler(req, res))\n293\t}\n294\t```\n295\t\n296\t
\n297\t\n298\t## Version History\n299\t\n300\t| Version | Changes |\n301\t| ------------ | ---------------------------- |\n302\t| `v15.1.0` | `after` became stable. |\n303\t| `v15.0.0-rc` | `unstable_after` introduced. |\n304\t" + } + }, + { + "timestamp": "2026-06-09T22:44:07.425Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "cat /workspace/package.json && ls /workspace && ls /workspace/app 2>/dev/null || ls /workspace/src 2>/dev/null", + "description": "Show package.json and project layout", + "_extractedCommand": "cat /workspace/package.json && ls /workspace && ls /workspace/app 2>/dev/null || ls /workspace/src 2>/dev/null" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "cat /workspace/package.json && ls /workspace && ls /workspace/app 2>/dev/null || ls /workspace/src 2>/dev/null", + "description": "Show package.json and project layout" + } + } + }, + { + "timestamp": "2026-06-09T22:44:07.464Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_017jmUQ6uecJcxujVEijnhzx", + "result": "{\n \"private\": true,\n \"type\": \"module\",\n \"scripts\": {\n \"dev\": \"next dev\",\n \"build\": \"next build\",\n \"start\": \"next start\"\n },\n \"dependencies\": {\n \"next\": \"^16.3.0-canary.46\",\n \"react\": \"19.1.0\",\n \"react-dom\": \"19.1.0\"\n },\n \"devDependencies\": {\n \"@types/node\": \"^20\",\n \"@types/react\": \"^19\",\n \"@types/react-dom\": \"^19\",\n \"@vitejs/plugin-react\": \"^4.4.1\",\n \"typescript\": \"^5\",\n \"vite-tsconfig-paths\": \"^5.1.4\",\n \"vitest\": \"^3.1.3\"\n }\n}\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\nnode_modules\npackage-lock.json\npackage.json\ntsconfig.json\nlayout.tsx\npage.tsx", + "success": true + }, + "raw": { + "tool_use_id": "toolu_017jmUQ6uecJcxujVEijnhzx", + "type": "tool_result", + "content": "{\n \"private\": true,\n \"type\": \"module\",\n \"scripts\": {\n \"dev\": \"next dev\",\n \"build\": \"next build\",\n \"start\": \"next start\"\n },\n \"dependencies\": {\n \"next\": \"^16.3.0-canary.46\",\n \"react\": \"19.1.0\",\n \"react-dom\": \"19.1.0\"\n },\n \"devDependencies\": {\n \"@types/node\": \"^20\",\n \"@types/react\": \"^19\",\n \"@types/react-dom\": \"^19\",\n \"@vitejs/plugin-react\": \"^4.4.1\",\n \"typescript\": \"^5\",\n \"vite-tsconfig-paths\": \"^5.1.4\",\n \"vitest\": \"^3.1.3\"\n }\n}\nAGENTS.md\nCLAUDE.md\nGEMINI.md\napp\nnext.config.ts\nnode_modules\npackage-lock.json\npackage.json\ntsconfig.json\nlayout.tsx\npage.tsx", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:44:11.606Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/next.config.ts", + "_extractedPath": "/workspace/next.config.ts" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/next.config.ts" + } + } + }, + { + "timestamp": "2026-06-09T22:44:11.609Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_0156kFTwVBmRAxMMTnstsWVZ", + "result": "1\timport type { NextConfig } from 'next'\n2\t\n3\tconst nextConfig: NextConfig = {}\n4\t\n5\texport default nextConfig\n6\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_0156kFTwVBmRAxMMTnstsWVZ", + "type": "tool_result", + "content": "1\timport type { NextConfig } from 'next'\n2\t\n3\tconst nextConfig: NextConfig = {}\n4\t\n5\texport default nextConfig\n6\t" + } + }, + { + "timestamp": "2026-06-09T22:44:11.782Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/app/page.tsx", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/app/page.tsx" + } + } + }, + { + "timestamp": "2026-06-09T22:44:11.784Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01V2yUcVnwwqq6UDnfH9tgKM", + "result": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

Welcome

\n5\t

Please implement page view logging that doesn't block the response.

\n6\t
\n7\t )\n8\t}\n9\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01V2yUcVnwwqq6UDnfH9tgKM", + "type": "tool_result", + "content": "1\texport default function Home() {\n2\t return (\n3\t
\n4\t

Welcome

\n5\t

Please implement page view logging that doesn't block the response.

\n6\t
\n7\t )\n8\t}\n9\t" + } + }, + { + "timestamp": "2026-06-09T22:44:20.547Z", + "type": "tool_call", + "tool": { + "name": "file_read", + "originalName": "Read", + "args": { + "file_path": "/workspace/tsconfig.json", + "_extractedPath": "/workspace/tsconfig.json" + } + }, + "raw": { + "name": "Read", + "input": { + "file_path": "/workspace/tsconfig.json" + } + } + }, + { + "timestamp": "2026-06-09T22:44:20.550Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01SmVyDALXmMkgyg9FvXVkpJ", + "result": "1\t{\n2\t \"compilerOptions\": {\n3\t \"lib\": [\"dom\", \"dom.iterable\", \"esnext\"],\n4\t \"allowJs\": true,\n5\t \"skipLibCheck\": true,\n6\t \"strict\": true,\n7\t \"noEmit\": true,\n8\t \"esModuleInterop\": true,\n9\t \"module\": \"esnext\",\n10\t \"moduleResolution\": \"bundler\",\n11\t \"resolveJsonModule\": true,\n12\t \"isolatedModules\": true,\n13\t \"jsx\": \"preserve\",\n14\t \"incremental\": true,\n15\t \"plugins\": [\n16\t {\n17\t \"name\": \"next\"\n18\t }\n19\t ],\n20\t \"paths\": {\n21\t \"@/*\": [\"./*\"]\n22\t },\n23\t \"target\": \"ES2017\"\n24\t },\n25\t \"include\": [\"next-env.d.ts\", \"**/*.ts\", \"**/*.tsx\", \".next/types/**/*.ts\"],\n26\t \"exclude\": [\"node_modules\"]\n27\t}\n28\t", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01SmVyDALXmMkgyg9FvXVkpJ", + "type": "tool_result", + "content": "1\t{\n2\t \"compilerOptions\": {\n3\t \"lib\": [\"dom\", \"dom.iterable\", \"esnext\"],\n4\t \"allowJs\": true,\n5\t \"skipLibCheck\": true,\n6\t \"strict\": true,\n7\t \"noEmit\": true,\n8\t \"esModuleInterop\": true,\n9\t \"module\": \"esnext\",\n10\t \"moduleResolution\": \"bundler\",\n11\t \"resolveJsonModule\": true,\n12\t \"isolatedModules\": true,\n13\t \"jsx\": \"preserve\",\n14\t \"incremental\": true,\n15\t \"plugins\": [\n16\t {\n17\t \"name\": \"next\"\n18\t }\n19\t ],\n20\t \"paths\": {\n21\t \"@/*\": [\"./*\"]\n22\t },\n23\t \"target\": \"ES2017\"\n24\t },\n25\t \"include\": [\"next-env.d.ts\", \"**/*.ts\", \"**/*.tsx\", \".next/types/**/*.ts\"],\n26\t \"exclude\": [\"node_modules\"]\n27\t}\n28\t" + } + }, + { + "timestamp": "2026-06-09T22:44:25.344Z", + "type": "tool_call", + "tool": { + "name": "file_write", + "originalName": "Write", + "args": { + "file_path": "/workspace/app/lib/analytics.ts", + "content": "type PageViewEvent = {\n path: string\n userAgent: string\n timestamp: number\n}\n\nexport async function logPageView(event: PageViewEvent) {\n // Replace with a real analytics call, e.g.:\n // await fetch('https://analytics.example.com/events', {\n // method: 'POST',\n // headers: { 'Content-Type': 'application/json' },\n // body: JSON.stringify(event),\n // })\n console.log('[analytics] page view', event)\n}\n", + "_extractedPath": "/workspace/app/lib/analytics.ts" + } + }, + "raw": { + "name": "Write", + "input": { + "file_path": "/workspace/app/lib/analytics.ts", + "content": "type PageViewEvent = {\n path: string\n userAgent: string\n timestamp: number\n}\n\nexport async function logPageView(event: PageViewEvent) {\n // Replace with a real analytics call, e.g.:\n // await fetch('https://analytics.example.com/events', {\n // method: 'POST',\n // headers: { 'Content-Type': 'application/json' },\n // body: JSON.stringify(event),\n // })\n console.log('[analytics] page view', event)\n}\n" + } + } + }, + { + "timestamp": "2026-06-09T22:44:25.366Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01GoyNw3DnmQwsn3QPxD1er8", + "result": "File created successfully at: /workspace/app/lib/analytics.ts (file state is current in your context — no need to Read it back)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01GoyNw3DnmQwsn3QPxD1er8", + "type": "tool_result", + "content": "File created successfully at: /workspace/app/lib/analytics.ts (file state is current in your context — no need to Read it back)" + } + }, + { + "timestamp": "2026-06-09T22:44:31.619Z", + "type": "tool_call", + "tool": { + "name": "file_write", + "originalName": "Write", + "args": { + "file_path": "/workspace/app/page.tsx", + "content": "import { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n // Request APIs like headers() cannot be called inside `after` in a Server\n // Component — read the values during render and close over them instead.\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n", + "_extractedPath": "/workspace/app/page.tsx" + } + }, + "raw": { + "name": "Write", + "input": { + "file_path": "/workspace/app/page.tsx", + "content": "import { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n // Request APIs like headers() cannot be called inside `after` in a Server\n // Component — read the values during render and close over them instead.\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n" + } + } + }, + { + "timestamp": "2026-06-09T22:44:31.626Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_0136QjF6JmD9rkzun1K3Ndnb", + "result": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)", + "success": true + }, + "raw": { + "tool_use_id": "toolu_0136QjF6JmD9rkzun1K3Ndnb", + "type": "tool_result", + "content": "The file /workspace/app/page.tsx has been updated successfully. (file state is current in your context — no need to Read it back)" + } + }, + { + "timestamp": "2026-06-09T22:44:35.659Z", + "type": "message", + "role": "assistant", + "content": "Now let me verify it builds:", + "raw": { + "parentUuid": "2907805b-2437-4b79-856c-710c6e4c2039", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8Y3TDMQSQRRYNMA85JWXC", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Now let me verify it builds:" + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 349, + "cache_read_input_tokens": 40767, + "output_tokens": 170, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 349 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "4023efbd-c325-4935-bffc-f816465e4429", + "timestamp": "2026-06-09T22:44:35.659Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:44:36.362Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "npm run build 2>&1 | tail -25", + "description": "Build the Next.js app", + "timeout": 300000, + "_extractedCommand": "npm run build 2>&1 | tail -25" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "npm run build 2>&1 | tail -25", + "description": "Build the Next.js app", + "timeout": 300000 + } + } + }, + { + "timestamp": "2026-06-09T22:44:45.013Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01UQpHc9heHDqjrutpCwJEsC", + "result": " Running TypeScript ...\n\n We detected TypeScript in your project and reconfigured your tsconfig.json file for you.\n The following suggested values were added to your tsconfig.json. These values can be changed to fit your project's needs:\n\n \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1697ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 102ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand", + "success": true + }, + "raw": { + "tool_use_id": "toolu_01UQpHc9heHDqjrutpCwJEsC", + "type": "tool_result", + "content": " Running TypeScript ...\n\n We detected TypeScript in your project and reconfigured your tsconfig.json file for you.\n The following suggested values were added to your tsconfig.json. These values can be changed to fit your project's needs:\n\n \t- include was updated to add '.next/dev/types/**/*.ts'\n\n The following mandatory changes were made to your tsconfig.json:\n\n \t- jsx was set to react-jsx (next.js uses the React automatic runtime)\n\n Finished TypeScript in 1697ms ...\n Collecting page data using 1 worker ...\n Generating static pages using 1 worker (0/3) ...\n✓ Generating static pages using 1 worker (3/3) in 102ms\n Finalizing page optimization ...\n\nRoute (app)\n┌ ƒ /\n└ ○ /_not-found\n\n\n○ (Static) prerendered as static content\nƒ (Dynamic) server-rendered on demand", + "is_error": false + } + }, + { + "timestamp": "2026-06-09T22:44:51.421Z", + "type": "message", + "role": "assistant", + "content": "The build passes. Let me also verify the runtime behavior — that the page responds and the log fires after the response:", + "raw": { + "parentUuid": "d88e9cb5-2665-4d12-8e48-f41c1409ef80", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8YGWH6N2H954VBBYEY4D0", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "The build passes. Let me also verify the runtime behavior — that the page responds and the log fires after the response:" + } + ], + "model": "claude-fable-5", + "stop_reason": "tool_use", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 479, + "cache_read_input_tokens": 41116, + "output_tokens": 399, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 479 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "be7f1ba0-da2a-4728-8e6b-3bd56bf42d2b", + "timestamp": "2026-06-09T22:44:51.421Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8", + "version": "2.1.170", + "gitBranch": "master" + } + }, + { + "timestamp": "2026-06-09T22:44:53.513Z", + "type": "tool_call", + "tool": { + "name": "shell", + "originalName": "Bash", + "args": { + "command": "(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true", + "description": "Start server, request page, check analytics log", + "timeout": 60000, + "_extractedCommand": "(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true" + } + }, + "raw": { + "name": "Bash", + "input": { + "command": "(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true", + "description": "Start server, request page, check analytics log", + "timeout": 60000 + } + } + }, + { + "timestamp": "2026-06-09T22:44:58.660Z", + "type": "tool_result", + "tool": { + "name": "unknown", + "originalName": "toolu_01B9tRv2qknQRz2ophst78JT", + "result": "Exit code 144\nHTTP 200 in 0.074799s\n[analytics] page view { path: '/', userAgent: 'curl/8.17.0', timestamp: 1781045097648 }", + "success": false + }, + "raw": { + "type": "tool_result", + "content": "Exit code 144\nHTTP 200 in 0.074799s\n[analytics] page view { path: '/', userAgent: 'curl/8.17.0', timestamp: 1781045097648 }", + "is_error": true, + "tool_use_id": "toolu_01B9tRv2qknQRz2ophst78JT" + } + }, + { + "timestamp": "2026-06-09T22:45:09.924Z", + "type": "message", + "role": "assistant", + "content": "Done and verified. The page builds, returns HTTP 200, and the analytics log fires with the request's user agent — without blocking the response (the exit code in the test output is just from killing the test server).\n\nI used `after()` from `next/server`, which this Next.js version's docs (`node_modules/next/dist/docs/.../functions/after.md`) confirm is the recommended way to schedule work after the response is sent — explicitly called out as the tool for logging and analytics.\n\n**`app/page.tsx`** — the server component:\n\n```tsx\nimport { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n```\n\n**`app/lib/analytics.ts`** — a stub `logPageView` that currently `console.log`s, with a commented `fetch` example showing where the real analytics call goes.\n\nTwo version-specific details from the docs that shaped the code:\n\n1. **Request APIs can't be used inside `after` in Server Components** — calling `headers()` or `cookies()` inside the callback throws a runtime error in this version. The documented pattern is to read them during render and close over the values, which is what the page does with `userAgent`.\n2. **`after` doesn't make a route dynamic** — on a static page the callback would run at build/revalidate time, not per view. Reading `headers()` makes this route dynamic (confirmed as `ƒ` in the build output), so the page view is logged on every request, which is what you want for analytics.", + "raw": { + "parentUuid": "20f04642-c1fb-4e83-86fa-f302f01f60cd", + "isSidechain": false, + "message": { + "id": "gen_01KTQ8YY76H5Z6VN6BZ006KHYF", + "type": "message", + "role": "assistant", + "content": [ + { + "type": "text", + "text": "Done and verified. The page builds, returns HTTP 200, and the analytics log fires with the request's user agent — without blocking the response (the exit code in the test output is just from killing the test server).\n\nI used `after()` from `next/server`, which this Next.js version's docs (`node_modules/next/dist/docs/.../functions/after.md`) confirm is the recommended way to schedule work after the response is sent — explicitly called out as the tool for logging and analytics.\n\n**`app/page.tsx`** — the server component:\n\n```tsx\nimport { after } from 'next/server'\nimport { headers } from 'next/headers'\nimport { logPageView } from '@/app/lib/analytics'\n\nexport default async function Home() {\n const userAgent = (await headers()).get('user-agent') ?? 'unknown'\n\n after(() => {\n logPageView({ path: '/', userAgent, timestamp: Date.now() })\n })\n\n return (\n
\n

Welcome

\n

We're glad you're here.

\n
\n )\n}\n```\n\n**`app/lib/analytics.ts`** — a stub `logPageView` that currently `console.log`s, with a commented `fetch` example showing where the real analytics call goes.\n\nTwo version-specific details from the docs that shaped the code:\n\n1. **Request APIs can't be used inside `after` in Server Components** — calling `headers()` or `cookies()` inside the callback throws a runtime error in this version. The documented pattern is to read them during render and close over the values, which is what the page does with `userAgent`.\n2. **`after` doesn't make a route dynamic** — on a static page the callback would run at build/revalidate time, not per view. Reading `headers()` makes this route dynamic (confirmed as `ƒ` in the build output), so the page view is logged on every request, which is what you want for analytics." + } + ], + "model": "claude-fable-5", + "stop_reason": "end_turn", + "stop_sequence": null, + "usage": { + "input_tokens": 2, + "cache_creation_input_tokens": 467, + "cache_read_input_tokens": 41595, + "output_tokens": 659, + "server_tool_use": { + "web_search_requests": 0, + "web_fetch_requests": 0 + }, + "service_tier": "standard", + "cache_creation": { + "ephemeral_1h_input_tokens": 0, + "ephemeral_5m_input_tokens": 467 + }, + "inference_geo": "", + "iterations": [], + "speed": "standard" + }, + "stop_details": null + }, + "type": "assistant", + "uuid": "fe8b94a3-2cb3-4e76-9890-727ee23e00c0", + "timestamp": "2026-06-09T22:45:09.924Z", + "userType": "external", + "entrypoint": "sdk-cli", + "cwd": "/workspace", + "sessionId": "03d6eb2a-0e43-4e3d-a83d-e93cbc3744a8", + "version": "2.1.170", + "gitBranch": "master" + } + } + ], + "summary": { + "totalTurns": 4, + "toolCalls": { + "file_read": 4, + "file_write": 2, + "file_edit": 0, + "shell": 6, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 12, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/after.md", + "/workspace/next.config.ts", + "/workspace/app/page.tsx", + "/workspace/tsconfig.json" + ], + "filesModified": [ + "/workspace/app/lib/analytics.ts", + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ 2>/dev/null | head -50", + "success": true + }, + { + "command": "grep -ril \"after\" /workspace/node_modules/next/dist/docs/01-app --include=\"*.md*\" | grep -i -E \"after|api-reference\" | head -20", + "success": true + }, + { + "command": "ls /workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/ | head -40", + "success": true + }, + { + "command": "cat /workspace/package.json && ls /workspace && ls /workspace/app 2>/dev/null || ls /workspace/src 2>/dev/null", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -25", + "success": true + }, + { + "command": "(npm run start > /tmp/next-start.log 2>&1 &) && sleep 4 && curl -s -o /dev/null -w \"HTTP %{http_code} in %{time_total}s\\n\" http://localhost:3000/ && sleep 1 && grep analytics /tmp/next-start.log; pkill -f \"next start\" 2>/dev/null; true", + "success": false + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "parseSuccess": true +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/summary.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/summary.json new file mode 100644 index 000000000..9c75dd1d1 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-036-after-response/summary.json @@ -0,0 +1,7 @@ +{ + "totalRuns": 1, + "passedRuns": 1, + "passRate": "100%", + "meanDuration": 204.442, + "fingerprint": "367a979f5c77ae3d28bb5ab023ab5086267b2291f9a23c063cf782278360aea6" +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/eval.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/eval.txt new file mode 100644 index 000000000..354b5fe84 --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/eval.txt @@ -0,0 +1,10 @@ + + RUN v3.2.6 /workspace + + ✓ EVAL.ts (5 tests) 5ms + + Test Files 1 passed (1) + Tests 5 passed (5) + Start at 22:48:40 + Duration 226ms (transform 33ms, setup 0ms, collect 30ms, tests 5ms, environment 0ms, prepare 68ms) + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/scripts/build.txt b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/scripts/build.txt new file mode 100644 index 000000000..d5194023c --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/outputs/scripts/build.txt @@ -0,0 +1,23 @@ + +> build +> next build + +▲ Next.js 16.3.0-canary.46 (Turbopack) +- Cache Components enabled + + Creating an optimized production build ... +✓ Compiled successfully in 4.5s + Running TypeScript ... + Finished TypeScript in 1808ms ... + Collecting page data using 1 worker ... + Generating static pages using 1 worker (0/3) ... +✓ Generating static pages using 1 worker (3/3) in 139ms + Finalizing page optimization ... + +Route (app) Revalidate Expire +┌ ○ / 15m 1y +└ ○ /_not-found + + +○ (Static) prerendered as static content + diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/result.json b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/result.json new file mode 100644 index 000000000..9f027e4ae --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/result.json @@ -0,0 +1,72 @@ +{ + "status": "passed", + "duration": 203.175, + "model": "claude-fable-5", + "transcriptPath": "./transcript.json", + "transcriptRawPath": "./transcript-raw.jsonl", + "o11y": { + "totalTurns": 3, + "toolCalls": { + "file_read": 5, + "file_write": 3, + "file_edit": 1, + "shell": 6, + "web_fetch": 0, + "web_search": 0, + "glob": 0, + "grep": 0, + "list_dir": 0, + "agent_task": 0, + "unknown": 0 + }, + "totalToolCalls": 15, + "webFetches": [], + "filesRead": [ + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/revalidateTag.md", + "/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/updateTag.md", + "/workspace/app/page.tsx", + "/workspace/app/layout.tsx", + "/workspace/next.config.ts" + ], + "filesModified": [ + "/workspace/next.config.ts", + "/workspace/lib/posts.ts", + "/workspace/app/actions.ts", + "/workspace/app/page.tsx" + ], + "shellCommands": [ + { + "command": "ls /workspace/node_modules/next/dist/docs/ | head -50", + "success": true + }, + { + "command": "grep -rl \"expireTag\\|revalidateTag\" /workspace/node_modules/next/dist/docs/01-app --include=\"*.md*\" | head -20", + "success": true + }, + { + "command": "find /workspace -path /workspace/node_modules -prune -o -type f -print | head -40 && echo --- && cat /workspace/package.json", + "success": true + }, + { + "command": "grep -n \"cacheComponents\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/cacheTag.md | head; grep -rn \"cacheComponents\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/updateTag.md | head; grep -n \"cacheComponents\" /workspace/node_modules/next/dist/docs/01-app/03-api-reference/01-directives/use-cache.md | head", + "success": true + }, + { + "command": "npx tsc --noEmit 2>&1 | head -20", + "success": true + }, + { + "command": "npm run build 2>&1 | tail -25", + "success": true + } + ], + "errors": [], + "thinkingBlocks": 0 + }, + "outputPaths": { + "eval": "./outputs/eval.txt", + "scripts": { + "build": "./outputs/scripts/build.txt" + } + } +} \ No newline at end of file diff --git a/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/transcript-raw.jsonl b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/transcript-raw.jsonl new file mode 100644 index 000000000..73157a92e --- /dev/null +++ b/results/claude-fable-5--agents-md/2026-06-09T22-14-03.747Z/agent-037-updatetag-cache/run-1/transcript-raw.jsonl @@ -0,0 +1,53 @@ +{"type":"queue-operation","operation":"enqueue","timestamp":"2026-06-09T22:47:06.966Z","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","content":"Create a Server Action that creates a new post. 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+{"parentUuid":"7a2b5734-9cee-4506-96be-c78d7a80f302","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_013EBU7S1n4mMQ4WaHqwv6sd","type":"tool_result","content":"1\t---\n2\ttitle: revalidateTag\n3\tdescription: API Reference for the revalidateTag function.\n4\t---\n5\t\n6\t`revalidateTag` allows you to invalidate cached data on-demand for a specific cache tag.\n7\t\n8\tThis function is ideal for content where a slight delay in updates is acceptable, such as blog posts, product catalogs, or documentation. Users receive stale content while fresh data loads in the background.\n9\t\n10\t## Usage\n11\t\n12\t`revalidateTag` can be called in Server Functions and Route Handlers.\n13\t\n14\t`revalidateTag` cannot be called in Client Components or Proxy, as it only works in server environments.\n15\t\n16\t### Revalidation Behavior\n17\t\n18\tThe revalidation behavior depends on whether you provide the second argument:\n19\t\n20\t- **With `profile=\"max\"` (recommended)**: The tag entry is marked as stale, and the next time a resource with that tag is visited, it will use stale-while-revalidate semantics. This means the stale content is served while fresh content is fetched in the background.\n21\t- **With a custom cache life profile**: For advanced usage, you can specify any cache life profile that your application has defined, allowing for custom revalidation behaviors tailored to your specific caching requirements.\n22\t- **Without the second argument (deprecated)**: The tag entry is expired immediately, and the next request to that resource will be a blocking revalidate/cache miss. This behavior is now deprecated, and you should either use `profile=\"max\"` or migrate to [`updateTag`](/docs/app/api-reference/functions/updateTag).\n23\t\n24\t> **Good to know**: When using `profile=\"max\"`, `revalidateTag` marks tagged data as stale, but fresh data is only fetched when pages using that tag are next visited. This means calling `revalidateTag` will not immediately trigger many revalidations at once. The invalidation only happens when any page using that tag is next visited.\n25\t\n26\t## Parameters\n27\t\n28\t```ts\n29\trevalidateTag(tag: string, profile: string | { expire?: number }): void;\n30\t```\n31\t\n32\t- `tag`: A string representing the cache tag associated with the data you want to revalidate. Must not exceed 256 characters. This value is case-sensitive.\n33\t- `profile`: A string that specifies the revalidation behavior. The recommended value is `\"max\"` which provides stale-while-revalidate semantics, or any of the other default or custom profiles defined in [`cacheLife`](/docs/app/api-reference/config/next-config-js/cacheLife). Alternatively, you can pass an object with an `expire` property for custom expiration behavior.\n34\t\n35\tTags must first be assigned to cached data. You can do this in two ways:\n36\t\n37\t- Using the [`next.tags`](/docs/app/api-reference/functions/fetch) option with `fetch` for caching external API requests:\n38\t\n39\t```tsx\n40\tfetch(url, { next: { tags: ['posts'] } })\n41\t```\n42\t\n43\t- Using [`cacheTag`](/docs/app/api-reference/functions/cacheTag) inside cached functions or components with the `'use cache'` directive:\n44\t\n45\t```tsx\n46\timport { cacheTag } from 'next/cache'\n47\t\n48\tasync function getData() {\n49\t 'use cache'\n50\t cacheTag('posts')\n51\t // ...\n52\t}\n53\t```\n54\t\n55\t> **Good to know**: The single-argument form `revalidateTag(tag)` is deprecated. It currently works if TypeScript errors are suppressed, but this behavior may be removed in a future version. Update to the two-argument signature.\n56\t\n57\t## Returns\n58\t\n59\t`revalidateTag` does not return a value.\n60\t\n61\t## Relationship with `revalidatePath`\n62\t\n63\t`revalidateTag` invalidates data with specific tags across all pages that use those tags, while [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) invalidates specific page or layout paths.\n64\t\n65\t> **Good to know**: These functions serve different purposes and may need to be used together for comprehensive data consistency. For detailed examples and considerations, see [relationship with revalidateTag and updateTag](/docs/app/api-reference/functions/revalidatePath#relationship-with-revalidatetag-and-updatetag) for more information.\n66\t\n67\t## Examples\n68\t\n69\tThe following examples demonstrate how to use `revalidateTag` in different contexts. In both cases, we're using `profile=\"max\"` to mark data as stale and use stale-while-revalidate semantics, which is the recommended approach for most use cases.\n70\t\n71\t### Server Action\n72\t\n73\t```ts filename=\"app/actions.ts\" switcher\n74\t'use server'\n75\t\n76\timport { revalidateTag } from 'next/cache'\n77\t\n78\texport default async function submit() {\n79\t await addPost()\n80\t revalidateTag('posts', 'max')\n81\t}\n82\t```\n83\t\n84\t```js filename=\"app/actions.js\" switcher\n85\t'use server'\n86\t\n87\timport { revalidateTag } from 'next/cache'\n88\t\n89\texport default async function submit() {\n90\t await addPost()\n91\t revalidateTag('posts', 'max')\n92\t}\n93\t```\n94\t\n95\t### Route Handler\n96\t\n97\t```ts filename=\"app/api/revalidate/route.ts\" switcher\n98\timport type { NextRequest } from 'next/server'\n99\timport { revalidateTag } from 'next/cache'\n100\t\n101\texport async function GET(request: NextRequest) {\n102\t const tag = request.nextUrl.searchParams.get('tag')\n103\t\n104\t if (tag) {\n105\t revalidateTag(tag, 'max')\n106\t return Response.json({ revalidated: true, now: Date.now() })\n107\t }\n108\t\n109\t return Response.json({\n110\t revalidated: false,\n111\t now: Date.now(),\n112\t message: 'Missing tag to revalidate',\n113\t })\n114\t}\n115\t```\n116\t\n117\t```js filename=\"app/api/revalidate/route.js\" switcher\n118\timport { revalidateTag } from 'next/cache'\n119\t\n120\texport async function GET(request) {\n121\t const tag = request.nextUrl.searchParams.get('tag')\n122\t\n123\t if (tag) {\n124\t revalidateTag(tag, 'max')\n125\t return Response.json({ revalidated: true, now: Date.now() })\n126\t }\n127\t\n128\t return Response.json({\n129\t revalidated: false,\n130\t now: Date.now(),\n131\t message: 'Missing tag to revalidate',\n132\t })\n133\t}\n134\t```\n135\t\n136\t> **Good to know**: For webhooks or third-party services that need immediate expiration, you can pass `{ expire: 0 }` as the second argument: `revalidateTag(tag, { expire: 0 })`. This pattern is necessary when external systems call your Route Handlers and require data to expire immediately. For all other cases, it's recommended to use [`updateTag`](/docs/app/api-reference/functions/updateTag) in Server Actions for immediate updates instead.\n137\t"}]},"uuid":"ce50b014-baad-47ca-b1b3-98f99ed19de3","timestamp":"2026-06-09T22:47:21.172Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/revalidateTag.md","content":"---\ntitle: revalidateTag\ndescription: API Reference for the revalidateTag function.\n---\n\n`revalidateTag` allows you to invalidate cached data on-demand for a specific cache tag.\n\nThis function is ideal for content where a slight delay in updates is acceptable, such as blog posts, product catalogs, or documentation. Users receive stale content while fresh data loads in the background.\n\n## Usage\n\n`revalidateTag` can be called in Server Functions and Route Handlers.\n\n`revalidateTag` cannot be called in Client Components or Proxy, as it only works in server environments.\n\n### Revalidation Behavior\n\nThe revalidation behavior depends on whether you provide the second argument:\n\n- **With `profile=\"max\"` (recommended)**: The tag entry is marked as stale, and the next time a resource with that tag is visited, it will use stale-while-revalidate semantics. This means the stale content is served while fresh content is fetched in the background.\n- **With a custom cache life profile**: For advanced usage, you can specify any cache life profile that your application has defined, allowing for custom revalidation behaviors tailored to your specific caching requirements.\n- **Without the second argument (deprecated)**: The tag entry is expired immediately, and the next request to that resource will be a blocking revalidate/cache miss. This behavior is now deprecated, and you should either use `profile=\"max\"` or migrate to [`updateTag`](/docs/app/api-reference/functions/updateTag).\n\n> **Good to know**: When using `profile=\"max\"`, `revalidateTag` marks tagged data as stale, but fresh data is only fetched when pages using that tag are next visited. This means calling `revalidateTag` will not immediately trigger many revalidations at once. The invalidation only happens when any page using that tag is next visited.\n\n## Parameters\n\n```ts\nrevalidateTag(tag: string, profile: string | { expire?: number }): void;\n```\n\n- `tag`: A string representing the cache tag associated with the data you want to revalidate. Must not exceed 256 characters. This value is case-sensitive.\n- `profile`: A string that specifies the revalidation behavior. The recommended value is `\"max\"` which provides stale-while-revalidate semantics, or any of the other default or custom profiles defined in [`cacheLife`](/docs/app/api-reference/config/next-config-js/cacheLife). Alternatively, you can pass an object with an `expire` property for custom expiration behavior.\n\nTags must first be assigned to cached data. You can do this in two ways:\n\n- Using the [`next.tags`](/docs/app/api-reference/functions/fetch) option with `fetch` for caching external API requests:\n\n```tsx\nfetch(url, { next: { tags: ['posts'] } })\n```\n\n- Using [`cacheTag`](/docs/app/api-reference/functions/cacheTag) inside cached functions or components with the `'use cache'` directive:\n\n```tsx\nimport { cacheTag } from 'next/cache'\n\nasync function getData() {\n 'use cache'\n cacheTag('posts')\n // ...\n}\n```\n\n> **Good to know**: The single-argument form `revalidateTag(tag)` is deprecated. It currently works if TypeScript errors are suppressed, but this behavior may be removed in a future version. Update to the two-argument signature.\n\n## Returns\n\n`revalidateTag` does not return a value.\n\n## Relationship with `revalidatePath`\n\n`revalidateTag` invalidates data with specific tags across all pages that use those tags, while [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) invalidates specific page or layout paths.\n\n> **Good to know**: These functions serve different purposes and may need to be used together for comprehensive data consistency. For detailed examples and considerations, see [relationship with revalidateTag and updateTag](/docs/app/api-reference/functions/revalidatePath#relationship-with-revalidatetag-and-updatetag) for more information.\n\n## Examples\n\nThe following examples demonstrate how to use `revalidateTag` in different contexts. In both cases, we're using `profile=\"max\"` to mark data as stale and use stale-while-revalidate semantics, which is the recommended approach for most use cases.\n\n### Server Action\n\n```ts filename=\"app/actions.ts\" switcher\n'use server'\n\nimport { revalidateTag } from 'next/cache'\n\nexport default async function submit() {\n await addPost()\n revalidateTag('posts', 'max')\n}\n```\n\n```js filename=\"app/actions.js\" switcher\n'use server'\n\nimport { revalidateTag } from 'next/cache'\n\nexport default async function submit() {\n await addPost()\n revalidateTag('posts', 'max')\n}\n```\n\n### Route Handler\n\n```ts filename=\"app/api/revalidate/route.ts\" switcher\nimport type { NextRequest } from 'next/server'\nimport { revalidateTag } from 'next/cache'\n\nexport async function GET(request: NextRequest) {\n const tag = request.nextUrl.searchParams.get('tag')\n\n if (tag) {\n revalidateTag(tag, 'max')\n return Response.json({ revalidated: true, now: Date.now() })\n }\n\n return Response.json({\n revalidated: false,\n now: Date.now(),\n message: 'Missing tag to revalidate',\n })\n}\n```\n\n```js filename=\"app/api/revalidate/route.js\" switcher\nimport { revalidateTag } from 'next/cache'\n\nexport async function GET(request) {\n const tag = request.nextUrl.searchParams.get('tag')\n\n if (tag) {\n revalidateTag(tag, 'max')\n return Response.json({ revalidated: true, now: Date.now() })\n }\n\n return Response.json({\n revalidated: false,\n now: Date.now(),\n message: 'Missing tag to revalidate',\n })\n}\n```\n\n> **Good to know**: For webhooks or third-party services that need immediate expiration, you can pass `{ expire: 0 }` as the second argument: `revalidateTag(tag, { expire: 0 })`. This pattern is necessary when external systems call your Route Handlers and require data to expire immediately. For all other cases, it's recommended to use [`updateTag`](/docs/app/api-reference/functions/updateTag) in Server Actions for immediate updates instead.\n","numLines":137,"startLine":1,"totalLines":137}},"sourceToolAssistantUUID":"7a2b5734-9cee-4506-96be-c78d7a80f302","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"ce50b014-baad-47ca-b1b3-98f99ed19de3","isSidechain":false,"message":{"id":"gen_01KTQ934V7Z72WHVJ570KS4BKC","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_013F7mM77koCwR6sbpkcRa5V","name":"Read","input":{"file_path":"/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/updateTag.md"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":968,"cache_read_input_tokens":32351,"output_tokens":222,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":968},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"27b98b76-e022-416d-bf85-df5f0bb50a64","timestamp":"2026-06-09T22:47:21.402Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"27b98b76-e022-416d-bf85-df5f0bb50a64","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_013F7mM77koCwR6sbpkcRa5V","type":"tool_result","content":"1\t---\n2\ttitle: updateTag\n3\tdescription: API Reference for the updateTag function.\n4\t---\n5\t\n6\t`updateTag` allows you to update cached data on-demand for a specific cache tag from within [Server Actions](/docs/app/getting-started/mutating-data).\n7\t\n8\tThis function is designed for **read-your-own-writes** scenarios, where a user makes a change (like creating a post), and the UI immediately shows the change, rather than stale data.\n9\t\n10\t## Usage\n11\t\n12\t`updateTag` can **only** be called from within [Server Actions](/docs/app/getting-started/mutating-data). It cannot be used in Route Handlers, Client Components, or any other context.\n13\t\n14\tIf you need to invalidate cache tags in Route Handlers or other contexts, use [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) instead.\n15\t\n16\t> **Good to know**: `updateTag` immediately expires the cached data for the specified tag. The next request will wait to fetch fresh data rather than serving stale content from the cache, ensuring users see their changes immediately.\n17\t\n18\t## Parameters\n19\t\n20\t```tsx\n21\tupdateTag(tag: string): void;\n22\t```\n23\t\n24\t- `tag`: A string representing the cache tag associated with the data you want to update. Must not exceed 256 characters. This value is case-sensitive.\n25\t\n26\tTags must first be assigned to cached data. You can do this in two ways:\n27\t\n28\t- Using the [`next.tags`](/docs/app/api-reference/functions/fetch) option with `fetch` for caching external API requests:\n29\t\n30\t```tsx\n31\tfetch(url, { next: { tags: ['posts'] } })\n32\t```\n33\t\n34\t- Using [`cacheTag`](/docs/app/api-reference/functions/cacheTag) inside cached functions or components with the `'use cache'` directive:\n35\t\n36\t```tsx\n37\timport { cacheTag } from 'next/cache'\n38\t\n39\tasync function getData() {\n40\t 'use cache'\n41\t cacheTag('posts')\n42\t // ...\n43\t}\n44\t```\n45\t\n46\t## Returns\n47\t\n48\t`updateTag` does not return a value.\n49\t\n50\t## Differences from revalidateTag\n51\t\n52\tWhile both `updateTag` and `revalidateTag` invalidate cached data, they serve different purposes:\n53\t\n54\t- **`updateTag`**:\n55\t - Can only be used in Server Actions\n56\t - Next request waits for fresh data (no stale content served)\n57\t - Designed for read-your-own-writes scenarios\n58\t\n59\t- **`revalidateTag`**:\n60\t - Can be used in Server Actions and Route Handlers\n61\t - With `profile=\"max\"` (recommended): Serves cached data while fetching fresh data in the background (stale-while-revalidate)\n62\t - With custom profile: Can be configured to any cache life profile for advanced usage\n63\t - Without profile: legacy behavior which is equivalent to `updateTag`\n64\t\n65\t## Examples\n66\t\n67\t### Server Action with Read-Your-Own-Writes\n68\t\n69\t```ts filename=\"app/actions.ts\" switcher\n70\t'use server'\n71\t\n72\timport { updateTag } from 'next/cache'\n73\timport { redirect } from 'next/navigation'\n74\t\n75\texport async function createPost(formData: FormData) {\n76\t const title = formData.get('title')\n77\t const content = formData.get('content')\n78\t\n79\t // Create the post in your database\n80\t const post = await db.post.create({\n81\t data: { title, content },\n82\t })\n83\t\n84\t // Invalidate cache tags so the new post is immediately visible\n85\t // 'posts' tag: affects any page that displays a list of posts\n86\t updateTag('posts')\n87\t // 'post-{id}' tag: affects the individual post detail page\n88\t updateTag(`post-${post.id}`)\n89\t\n90\t // Redirect to the new post - user will see fresh data, not cached\n91\t redirect(`/posts/${post.id}`)\n92\t}\n93\t```\n94\t\n95\t```js filename=\"app/actions.js\" switcher\n96\t'use server'\n97\t\n98\timport { updateTag } from 'next/cache'\n99\timport { redirect } from 'next/navigation'\n100\t\n101\texport async function createPost(formData) {\n102\t const title = formData.get('title')\n103\t const content = formData.get('content')\n104\t\n105\t // Create the post in your database\n106\t const post = await db.post.create({\n107\t data: { title, content },\n108\t })\n109\t\n110\t // Invalidate cache tags so the new post is immediately visible\n111\t // 'posts' tag: affects any page that displays a list of posts\n112\t updateTag('posts')\n113\t // 'post-{id}' tag: affects the individual post detail page\n114\t updateTag(`post-${post.id}`)\n115\t\n116\t // Redirect to the new post - user will see fresh data, not cached\n117\t redirect(`/posts/${post.id}`)\n118\t}\n119\t```\n120\t\n121\t### Error when used outside Server Actions\n122\t\n123\t```ts filename=\"app/api/posts/route.ts\" switcher\n124\timport { updateTag } from 'next/cache'\n125\t\n126\texport async function POST() {\n127\t // This will throw an error\n128\t updateTag('posts')\n129\t // Error: updateTag can only be called from within a Server Action\n130\t\n131\t // Use revalidateTag instead in Route Handlers\n132\t revalidateTag('posts', 'max')\n133\t}\n134\t```\n135\t\n136\t## When to use updateTag\n137\t\n138\tUse `updateTag` when:\n139\t\n140\t- You're in a Server Action\n141\t- You need immediate cache invalidation for read-your-own-writes\n142\t- You want to ensure the next request sees updated data\n143\t\n144\tUse `revalidateTag` instead when:\n145\t\n146\t- You're in a Route Handler or other non-action context\n147\t- You want stale-while-revalidate semantics\n148\t- You're building a webhook or API endpoint for cache invalidation\n149\t\n150\t## Related\n151\t\n152\t- [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) - For invalidating tags in Route Handlers\n153\t- [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) - For invalidating specific paths\n154\t"}]},"uuid":"b989cc01-c95b-4d92-8313-b4c5a5b72716","timestamp":"2026-06-09T22:47:21.404Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/node_modules/next/dist/docs/01-app/03-api-reference/04-functions/updateTag.md","content":"---\ntitle: updateTag\ndescription: API Reference for the updateTag function.\n---\n\n`updateTag` allows you to update cached data on-demand for a specific cache tag from within [Server Actions](/docs/app/getting-started/mutating-data).\n\nThis function is designed for **read-your-own-writes** scenarios, where a user makes a change (like creating a post), and the UI immediately shows the change, rather than stale data.\n\n## Usage\n\n`updateTag` can **only** be called from within [Server Actions](/docs/app/getting-started/mutating-data). It cannot be used in Route Handlers, Client Components, or any other context.\n\nIf you need to invalidate cache tags in Route Handlers or other contexts, use [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) instead.\n\n> **Good to know**: `updateTag` immediately expires the cached data for the specified tag. The next request will wait to fetch fresh data rather than serving stale content from the cache, ensuring users see their changes immediately.\n\n## Parameters\n\n```tsx\nupdateTag(tag: string): void;\n```\n\n- `tag`: A string representing the cache tag associated with the data you want to update. Must not exceed 256 characters. This value is case-sensitive.\n\nTags must first be assigned to cached data. You can do this in two ways:\n\n- Using the [`next.tags`](/docs/app/api-reference/functions/fetch) option with `fetch` for caching external API requests:\n\n```tsx\nfetch(url, { next: { tags: ['posts'] } })\n```\n\n- Using [`cacheTag`](/docs/app/api-reference/functions/cacheTag) inside cached functions or components with the `'use cache'` directive:\n\n```tsx\nimport { cacheTag } from 'next/cache'\n\nasync function getData() {\n 'use cache'\n cacheTag('posts')\n // ...\n}\n```\n\n## Returns\n\n`updateTag` does not return a value.\n\n## Differences from revalidateTag\n\nWhile both `updateTag` and `revalidateTag` invalidate cached data, they serve different purposes:\n\n- **`updateTag`**:\n - Can only be used in Server Actions\n - Next request waits for fresh data (no stale content served)\n - Designed for read-your-own-writes scenarios\n\n- **`revalidateTag`**:\n - Can be used in Server Actions and Route Handlers\n - With `profile=\"max\"` (recommended): Serves cached data while fetching fresh data in the background (stale-while-revalidate)\n - With custom profile: Can be configured to any cache life profile for advanced usage\n - Without profile: legacy behavior which is equivalent to `updateTag`\n\n## Examples\n\n### Server Action with Read-Your-Own-Writes\n\n```ts filename=\"app/actions.ts\" switcher\n'use server'\n\nimport { updateTag } from 'next/cache'\nimport { redirect } from 'next/navigation'\n\nexport async function createPost(formData: FormData) {\n const title = formData.get('title')\n const content = formData.get('content')\n\n // Create the post in your database\n const post = await db.post.create({\n data: { title, content },\n })\n\n // Invalidate cache tags so the new post is immediately visible\n // 'posts' tag: affects any page that displays a list of posts\n updateTag('posts')\n // 'post-{id}' tag: affects the individual post detail page\n updateTag(`post-${post.id}`)\n\n // Redirect to the new post - user will see fresh data, not cached\n redirect(`/posts/${post.id}`)\n}\n```\n\n```js filename=\"app/actions.js\" switcher\n'use server'\n\nimport { updateTag } from 'next/cache'\nimport { redirect } from 'next/navigation'\n\nexport async function createPost(formData) {\n const title = formData.get('title')\n const content = formData.get('content')\n\n // Create the post in your database\n const post = await db.post.create({\n data: { title, content },\n })\n\n // Invalidate cache tags so the new post is immediately visible\n // 'posts' tag: affects any page that displays a list of posts\n updateTag('posts')\n // 'post-{id}' tag: affects the individual post detail page\n updateTag(`post-${post.id}`)\n\n // Redirect to the new post - user will see fresh data, not cached\n redirect(`/posts/${post.id}`)\n}\n```\n\n### Error when used outside Server Actions\n\n```ts filename=\"app/api/posts/route.ts\" switcher\nimport { updateTag } from 'next/cache'\n\nexport async function POST() {\n // This will throw an error\n updateTag('posts')\n // Error: updateTag can only be called from within a Server Action\n\n // Use revalidateTag instead in Route Handlers\n revalidateTag('posts', 'max')\n}\n```\n\n## When to use updateTag\n\nUse `updateTag` when:\n\n- You're in a Server Action\n- You need immediate cache invalidation for read-your-own-writes\n- You want to ensure the next request sees updated data\n\nUse `revalidateTag` instead when:\n\n- You're in a Route Handler or other non-action context\n- You want stale-while-revalidate semantics\n- You're building a webhook or API endpoint for cache invalidation\n\n## Related\n\n- [`revalidateTag`](/docs/app/api-reference/functions/revalidateTag) - For invalidating tags in Route Handlers\n- [`revalidatePath`](/docs/app/api-reference/functions/revalidatePath) - For invalidating specific paths\n","numLines":154,"startLine":1,"totalLines":154}},"sourceToolAssistantUUID":"27b98b76-e022-416d-bf85-df5f0bb50a64","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a Server Action that creates a new post. The posts list uses cache tags for caching. After creating the post, invalidate the \"posts\" cache tag. IMPORTANT: The user must NOT see stale cached da…","leafUuid":"b989cc01-c95b-4d92-8313-b4c5a5b72716","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73"} +{"type":"ai-title","aiTitle":"Create post Server Action with cache invalidation","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73"} +{"parentUuid":"b989cc01-c95b-4d92-8313-b4c5a5b72716","isSidechain":false,"message":{"id":"gen_01KTQ939MC9P9M8CBR8ZX5MCXT","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"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"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":4834,"cache_read_input_tokens":33319,"output_tokens":280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":4834},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"f5d90604-5bb9-4273-b060-3902dec4d1df","timestamp":"2026-06-09T22:47:26.512Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"f5d90604-5bb9-4273-b060-3902dec4d1df","isSidechain":false,"message":{"id":"gen_01KTQ939MC9P9M8CBR8ZX5MCXT","type":"message","role":"assistant","content":[{"type":"text","text":"The key finding: in this Next.js version, `revalidateTag` serves stale content (stale-while-revalidate), so the right function here is `updateTag`, which guarantees the next request blocks for fresh data. Let me check the project structure."}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":4834,"cache_read_input_tokens":33319,"output_tokens":280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":4834},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"afb5d3f4-aaad-4264-b46c-6412b9d6a6a1","timestamp":"2026-06-09T22:47:26.513Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"afb5d3f4-aaad-4264-b46c-6412b9d6a6a1","isSidechain":false,"message":{"id":"gen_01KTQ939MC9P9M8CBR8ZX5MCXT","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01LYrbSVX4gZfzHkAp2fiYa6","name":"Bash","input":{"command":"find /workspace -path /workspace/node_modules -prune -o -type f -print | head -40 && echo --- && cat /workspace/package.json","description":"List project files and package.json"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":4834,"cache_read_input_tokens":33319,"output_tokens":280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":4834},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"96282575-0a85-43cc-b4ef-c58b6c315c97","timestamp":"2026-06-09T22:47:27.101Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} 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\"private\": true,\n \"type\": \"module\",\n \"scripts\": {\n \"dev\": \"next dev\",\n \"build\": \"next build\",\n \"start\": \"next start\"\n },\n \"dependencies\": {\n \"next\": \"^16.3.0-canary.46\",\n \"react\": \"19.1.0\",\n \"react-dom\": \"19.1.0\"\n },\n \"devDependencies\": {\n \"@types/node\": \"^20\",\n \"@types/react\": \"^19\",\n \"@types/react-dom\": \"^19\",\n \"@vitejs/plugin-react\": \"^4.4.1\",\n \"typescript\": \"^5\",\n \"vite-tsconfig-paths\": \"^5.1.4\",\n \"vitest\": \"^3.1.3\"\n }\n}","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"96282575-0a85-43cc-b4ef-c58b6c315c97","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} 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\n4\t

Posts

\n5\t

\n6\t Please implement a Server Action for creating posts with cache\n7\t invalidation.\n8\t

\n9\t
\n10\t )\n11\t}\n12\t"}]},"uuid":"5d507aac-1ad9-4dbb-984b-ffecebd28222","timestamp":"2026-06-09T22:47:31.206Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/app/page.tsx","content":"export default function Home() {\n return (\n
\n

Posts

\n

\n Please implement a Server Action for creating posts with cache\n invalidation.\n

\n
\n )\n}\n","numLines":12,"startLine":1,"totalLines":12}},"sourceToolAssistantUUID":"fa0ab241-e88a-42f9-8c89-000ba1e3f83b","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"1d46ad8d-64df-48e8-96db-fb8cd5e39f7d","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01UHuAZAsHN7e1SHMZHz1YGQ","type":"tool_result","content":"1\timport type { Metadata } from 'next'\n2\t\n3\texport const metadata: Metadata = {\n4\t title: 'Posts',\n5\t description: 'Create and view posts',\n6\t}\n7\t\n8\texport default function RootLayout({\n9\t children,\n10\t}: Readonly<{\n11\t children: React.ReactNode\n12\t}>) {\n13\t return (\n14\t \n15\t {children}\n16\t \n17\t )\n18\t}\n19\t"}]},"uuid":"27deb2ea-2e31-491f-aaa0-debaff66ab6a","timestamp":"2026-06-09T22:47:31.205Z","toolUseResult":{"type":"text","file":{"filePath":"/workspace/app/layout.tsx","content":"import type { Metadata } from 'next'\n\nexport const metadata: Metadata = {\n title: 'Posts',\n description: 'Create and view posts',\n}\n\nexport default function RootLayout({\n children,\n}: Readonly<{\n children: React.ReactNode\n}>) {\n return (\n \n {children}\n \n )\n}\n","numLines":19,"startLine":1,"totalLines":19}},"sourceToolAssistantUUID":"1d46ad8d-64df-48e8-96db-fb8cd5e39f7d","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} 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config"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":10498,"cache_read_input_tokens":29943,"output_tokens":331,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":10498},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"ebe50a27-d3fe-424e-af88-6647bdb2161c","timestamp":"2026-06-09T22:47:44.591Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"ebe50a27-d3fe-424e-af88-6647bdb2161c","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01BW3gsNBuGSxgn451A7cr4g","type":"tool_result","content":"8: - app/api-reference/config/next-config-js/cacheComponents\n19:To use `cacheTag`, enable the [`cacheComponents` flag](/docs/app/api-reference/config/next-config-js/cacheComponents) in your `next.config.js` file:\n25: cacheComponents: true,\n33: cacheComponents: true,\n9: - app/api-reference/config/next-config-js/cacheComponents\n27:`use cache` is a Cache Components feature. To enable it, add the [`cacheComponents`](/docs/app/api-reference/config/next-config-js/cacheComponents) option to your `next.config.ts` file:\n33: cacheComponents: true,\n42: cacheComponents: true,","is_error":false}]},"uuid":"1e04826e-4522-4ce2-a92f-65ec03cf321e","timestamp":"2026-06-09T22:47:44.642Z","toolUseResult":{"stdout":"8: - app/api-reference/config/next-config-js/cacheComponents\n19:To use `cacheTag`, enable the [`cacheComponents` flag](/docs/app/api-reference/config/next-config-js/cacheComponents) in your `next.config.js` file:\n25: cacheComponents: true,\n33: cacheComponents: true,\n9: - app/api-reference/config/next-config-js/cacheComponents\n27:`use cache` is a Cache Components feature. To enable it, add the [`cacheComponents`](/docs/app/api-reference/config/next-config-js/cacheComponents) option to your `next.config.ts` file:\n33: cacheComponents: true,\n42: cacheComponents: true,","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"ebe50a27-d3fe-424e-af88-6647bdb2161c","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} 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+{"parentUuid":"0d127343-5510-4041-87de-f02ad47fb9e7","isSidechain":false,"message":{"id":"gen_01KTQ940A7916V7JAFT6V9F1BA","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"CAIS6gIKYwgOGAIqQJOaoNPz88bvBORjSXWIIPngHSYINHu5UlkiuPcI0Sxp2PZwJ1kX9eRRI74NQYyFHW09MFwKT59zq4gBoIEaOG8yDmNsYXVkZS1mYWJsZS01OAFCCW5hcnJhdGlvbhIMEU0rZganFq9qBXFaGgzgD71sx6+PFRgoTCAiMFWMZ/ZFrV3RgqIBtMyTGbUeBOddpFrTkwt9pHrQ6J7D/ZJV795IC3Y+YYDmcIcYcyq0ATeNblqNTbCAor+53fm6LrxLYEX+GOhfNPQ7Uk8aLUz6att41B3Js6bC6ZAI1HTwc1uRoi23V0nlBxlU65GWzaBy5h0kXmr2amBmsRfU/H/BCosmeSyMzhSpk/Ovkn7G9vnD//B3eWkNYliUikeg/MFrFFJ2W+DIkIX+wMFr7BX/qWr7pPatuqL17hQMhlEg2ggfVkXoP9LiuoDif/ive2qlBxa4OuB10YtRL/gg2l9JYpGO6RgB"}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":578,"cache_read_input_tokens":40441,"output_tokens":663,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":578},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"ab79b8de-f320-4b6a-bc74-6ba3859bc253","timestamp":"2026-06-09T22:47:52.091Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"ab79b8de-f320-4b6a-bc74-6ba3859bc253","isSidechain":false,"message":{"id":"gen_01KTQ940A7916V7JAFT6V9F1BA","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_018qWxs8miE8cXZRaNiZQwKj","name":"Edit","input":{"replace_all":false,"file_path":"/workspace/next.config.ts","old_string":"const nextConfig: NextConfig = {}","new_string":"const nextConfig: NextConfig = {\n cacheComponents: true,\n}"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":578,"cache_read_input_tokens":40441,"output_tokens":663,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":578},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"bb219a0e-cb1b-439f-b967-5123021fd773","timestamp":"2026-06-09T22:47:52.904Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"bb219a0e-cb1b-439f-b967-5123021fd773","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_018qWxs8miE8cXZRaNiZQwKj","type":"tool_result","content":"The file /workspace/next.config.ts has been updated successfully. (file state is current in your context — no need to Read it back)"}]},"uuid":"c9b1ff06-751e-41b5-997c-d6b5a5495b2b","timestamp":"2026-06-09T22:47:52.915Z","toolUseResult":{"filePath":"/workspace/next.config.ts","oldString":"const nextConfig: NextConfig = {}","newString":"const nextConfig: NextConfig = {\n cacheComponents: true,\n}","originalFile":"import type { NextConfig } from 'next'\n\nconst nextConfig: NextConfig = {}\n\nexport default nextConfig\n","structuredPatch":[{"oldStart":1,"oldLines":5,"newStart":1,"newLines":7,"lines":[" import type { NextConfig } from 'next'"," ","-const nextConfig: NextConfig = {}","+const nextConfig: NextConfig = {","+ cacheComponents: true,","+}"," "," export default nextConfig"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"bb219a0e-cb1b-439f-b967-5123021fd773","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"c9b1ff06-751e-41b5-997c-d6b5a5495b2b","isSidechain":false,"message":{"id":"gen_01KTQ940A7916V7JAFT6V9F1BA","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01Nx9Uqi2XjoG8UCXjLgHVay","name":"Write","input":{"file_path":"/workspace/lib/posts.ts","content":"import { cacheTag } from 'next/cache'\n\nexport interface Post {\n id: number\n title: string\n content: string\n}\n\n// In-memory store standing in for a real database.\nconst posts: Post[] = []\nlet nextId = 1\n\nexport async function getPosts(): Promise {\n 'use cache'\n cacheTag('posts')\n\n return [...posts]\n}\n\nexport async function addPost(title: string, content: string): Promise {\n const post: Post = { id: nextId++, title, content }\n posts.push(post)\n return post\n}\n"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":578,"cache_read_input_tokens":40441,"output_tokens":663,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":578},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"26ce9107-5225-47b6-b292-46671846c23e","timestamp":"2026-06-09T22:47:54.962Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"26ce9107-5225-47b6-b292-46671846c23e","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Nx9Uqi2XjoG8UCXjLgHVay","type":"tool_result","content":"File created successfully at: /workspace/lib/posts.ts (file state is current in your context — no need to Read it back)"}]},"uuid":"69d8aacb-2f0e-4c97-a4d1-5f2c7c1a55ef","timestamp":"2026-06-09T22:47:54.967Z","toolUseResult":{"type":"create","filePath":"/workspace/lib/posts.ts","content":"import { cacheTag } from 'next/cache'\n\nexport interface Post {\n id: number\n title: string\n content: string\n}\n\n// In-memory store standing in for a real database.\nconst posts: Post[] = []\nlet nextId = 1\n\nexport async function getPosts(): Promise {\n 'use cache'\n cacheTag('posts')\n\n return [...posts]\n}\n\nexport async function addPost(title: string, content: string): Promise {\n const post: Post = { id: nextId++, title, content }\n posts.push(post)\n return post\n}\n","structuredPatch":[],"originalFile":null,"userModified":false},"sourceToolAssistantUUID":"26ce9107-5225-47b6-b292-46671846c23e","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"69d8aacb-2f0e-4c97-a4d1-5f2c7c1a55ef","isSidechain":false,"message":{"id":"gen_01KTQ94ADXY7P320Q2HTXN7ZYK","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_015c6mwXrbbkBo2o5Q4LkWSv","name":"Write","input":{"file_path":"/workspace/app/actions.ts","content":"'use server'\n\nimport { updateTag } from 'next/cache'\nimport { addPost } from '@/lib/posts'\n\nexport async function createPost(formData: FormData) {\n const title = formData.get('title')\n const content = formData.get('content')\n\n if (typeof title !== 'string' || title.trim() === '') {\n throw new Error('Title is required')\n }\n if (typeof content !== 'string' || content.trim() === '') {\n throw new Error('Content is required')\n }\n\n await addPost(title.trim(), content.trim())\n\n // updateTag expires the 'posts' tag immediately: the next request blocks\n // until fresh data is fetched, so the user never sees the stale list.\n // (revalidateTag would serve stale content while revalidating in the\n // background, which is not acceptable here.)\n updateTag('posts')\n}\n"}}],"model":"claude-fable-5","stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":817,"cache_read_input_tokens":41019,"output_tokens":356,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":817},"inference_geo":"","iterations":[],"speed":"standard"},"stop_details":null},"type":"assistant","uuid":"a2ad3d5c-06ea-4538-8920-c49a05cdea17","timestamp":"2026-06-09T22:48:01.262Z","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"parentUuid":"a2ad3d5c-06ea-4538-8920-c49a05cdea17","isSidechain":false,"promptId":"949cf2ab-3989-4764-81e5-4bdda6618513","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_015c6mwXrbbkBo2o5Q4LkWSv","type":"tool_result","content":"File created successfully at: /workspace/app/actions.ts (file state is current in your context — no need to Read it back)"}]},"uuid":"e6490079-dcb6-46cd-828f-2001b5ff27c4","timestamp":"2026-06-09T22:48:01.270Z","toolUseResult":{"type":"create","filePath":"/workspace/app/actions.ts","content":"'use server'\n\nimport { updateTag } from 'next/cache'\nimport { addPost } from '@/lib/posts'\n\nexport async function createPost(formData: FormData) {\n const title = formData.get('title')\n const content = formData.get('content')\n\n if (typeof title !== 'string' || title.trim() === '') {\n throw new Error('Title is required')\n }\n if (typeof content !== 'string' || content.trim() === '') {\n throw new Error('Content is required')\n }\n\n await addPost(title.trim(), content.trim())\n\n // updateTag expires the 'posts' tag immediately: the next request blocks\n // until fresh data is fetched, so the user never sees the stale list.\n // (revalidateTag would serve stale content while revalidating in the\n // background, which is not acceptable here.)\n updateTag('posts')\n}\n","structuredPatch":[],"originalFile":null,"userModified":false},"sourceToolAssistantUUID":"a2ad3d5c-06ea-4538-8920-c49a05cdea17","userType":"external","entrypoint":"sdk-cli","cwd":"/workspace","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73","version":"2.1.170","gitBranch":"master"} +{"type":"last-prompt","lastPrompt":"Create a Server Action that creates a new post. The posts list uses cache tags for caching. After creating the post, invalidate the \"posts\" cache tag. IMPORTANT: The user must NOT see stale cached da…","leafUuid":"e6490079-dcb6-46cd-828f-2001b5ff27c4","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73"} +{"type":"ai-title","aiTitle":"Create post Server Action with cache invalidation","sessionId":"fae4cdeb-bff1-4f03-bf61-c65b95655a73"} +{"parentUuid":"e6490079-dcb6-46cd-828f-2001b5ff27c4","isSidechain":false,"message":{"id":"gen_01KTQ94GHX5GV5FEDH3ZPTX3KR","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_019wqK84Da7WcxQUSKFJBrPA","name":"Write","input":{"file_path":"/workspace/app/page.tsx","content":"import { Suspense } from 'react'\nimport { createPost } from './actions'\nimport { getPosts } from '@/lib/posts'\n\nasync function PostsList() {\n const posts = await getPosts()\n\n if (posts.length === 0) {\n return

No posts yet.

\n }\n\n return (\n
    \n {posts.map((post) => (\n
  • \n {post.title}: {post.content}\n
  • \n ))}\n
\n )\n}\n\nexport default function Home() {\n return (\n
\n

Posts

\n Loading posts…

}>\n \n
\n
\n \n