[{"data":1,"prerenderedAt":2358},["ShallowReactive",2],{"navigation_docs":3,"-use-cases-ai-sdk-metadata":525,"-use-cases-ai-sdk-metadata-surround":2353},[4,30,80,128,308,440,495],{"title":5,"path":6,"stem":7,"children":8,"page":29},"Start","\u002Fstart","1.start",[9,14,19,24],{"title":10,"path":11,"stem":12,"icon":13},"Introduction","\u002Fstart\u002Fintroduction","1.start\u002F1.introduction","i-lucide-info",{"title":15,"path":16,"stem":17,"icon":18},"Why start with evlog","\u002Fstart\u002Fwhy-evlog","1.start\u002F2.why-evlog","i-lucide-rocket",{"title":20,"path":21,"stem":22,"icon":23},"Installation","\u002Fstart\u002Finstallation","1.start\u002F3.installation","i-lucide-download",{"title":25,"path":26,"stem":27,"icon":28},"Quick Start","\u002Fstart\u002Fquick-start","1.start\u002F4.quick-start","i-lucide-zap",false,{"title":31,"path":32,"stem":33,"children":34,"page":29},"Learn","\u002Flearn","2.learn",[35,40,45,50,55,60,65,70,75],{"title":36,"path":37,"stem":38,"icon":39},"Overview","\u002Flearn\u002Foverview","2.learn\u002F0.overview","i-lucide-list",{"title":41,"path":42,"stem":43,"icon":44},"Simple Logging","\u002Flearn\u002Fsimple-logging","2.learn\u002F1.simple-logging","i-lucide-terminal",{"title":46,"path":47,"stem":48,"icon":49},"Wide Events","\u002Flearn\u002Fwide-events","2.learn\u002F2.wide-events","i-lucide-layers",{"title":51,"path":52,"stem":53,"icon":54},"Structured Errors","\u002Flearn\u002Fstructured-errors","2.learn\u002F3.structured-errors","i-lucide-shield-alert",{"title":56,"path":57,"stem":58,"icon":59},"Lifecycle","\u002Flearn\u002Flifecycle","2.learn\u002F4.lifecycle","i-lucide-arrow-right-left",{"title":61,"path":62,"stem":63,"icon":64},"Sampling","\u002Flearn\u002Fsampling","2.learn\u002F5.sampling","i-lucide-filter",{"title":66,"path":67,"stem":68,"icon":69},"Auto-Redaction","\u002Flearn\u002Fredaction","2.learn\u002F6.redaction","i-lucide-eye-off",{"title":71,"path":72,"stem":73,"icon":74},"Typed Fields","\u002Flearn\u002Ftyped-fields","2.learn\u002F7.typed-fields","i-simple-icons-typescript",{"title":76,"path":77,"stem":78,"icon":79},"Catalogs","\u002Flearn\u002Fcatalogs","2.learn\u002F8.catalogs","i-lucide-book-open",{"title":81,"path":82,"stem":83,"children":84,"page":29},"CLI","\u002Fcli","3.cli",[85,88,93,98,103,108,113,118,123],{"title":36,"path":86,"stem":87,"icon":44},"\u002Fcli\u002Foverview","3.cli\u002F0.overview",{"title":89,"path":90,"stem":91,"icon":92},"init","\u002Fcli\u002Finit","3.cli\u002F1.init","i-lucide-wand-sparkles",{"title":94,"path":95,"stem":96,"icon":97},"map","\u002Fcli\u002Fmap","3.cli\u002F2.map","i-lucide-radar",{"title":99,"path":100,"stem":101,"icon":102},"Rules","\u002Fcli\u002Frules","3.cli\u002F3.rules","i-lucide-list-checks",{"title":104,"path":105,"stem":106,"icon":107},"Scoring","\u002Fcli\u002Fscoring","3.cli\u002F4.scoring","i-lucide-gauge",{"title":109,"path":110,"stem":111,"icon":112},"CI","\u002Fcli\u002Fci","3.cli\u002F5.ci","i-lucide-git-pull-request",{"title":114,"path":115,"stem":116,"icon":117},"doctor","\u002Fcli\u002Fdoctor","3.cli\u002F6.doctor","i-lucide-stethoscope",{"title":119,"path":120,"stem":121,"icon":122},"telemetry","\u002Fcli\u002Ftelemetry","3.cli\u002F7.telemetry","i-lucide-bar-chart-3",{"title":124,"path":125,"stem":126,"icon":127},"agents","\u002Fcli\u002Fagents","3.cli\u002F8.agents","i-lucide-bot",{"title":129,"path":130,"stem":131,"children":132,"page":29},"Integrate","\u002Fintegrate","4.integrate",[133,137,220],{"title":36,"path":134,"stem":135,"icon":136},"\u002Fintegrate\u002Foverview","4.integrate\u002F0.overview","i-lucide-plug",{"title":138,"path":139,"stem":140,"children":141,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","4.integrate\u002Fadapters",[142,145,175,200],{"title":36,"path":143,"stem":144,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","4.integrate\u002Fadapters\u002F01.overview",{"title":146,"path":147,"stem":148,"children":149,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","4.integrate\u002Fadapters\u002Fcloud",[150,155,160,165,170],{"title":151,"path":152,"stem":153,"icon":154},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","4.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":156,"path":157,"stem":158,"icon":159},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","4.integrate\u002Fadapters\u002Fcloud\u002F02.posthog","i-simple-icons-posthog",{"title":161,"path":162,"stem":163,"icon":164},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","4.integrate\u002Fadapters\u002Fcloud\u002F03.sentry","i-simple-icons-sentry",{"title":166,"path":167,"stem":168,"icon":169},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","4.integrate\u002Fadapters\u002Fcloud\u002F04.better-stack","i-simple-icons-betterstack",{"title":171,"path":172,"stem":173,"icon":174},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","4.integrate\u002Fadapters\u002Fcloud\u002F05.datadog","i-simple-icons-datadog",{"title":176,"path":177,"stem":178,"children":179,"page":29},"Cloud or Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fhybrid","4.integrate\u002Fadapters\u002Fhybrid",[180,185,190,195],{"title":181,"path":182,"stem":183,"icon":184},"Grafana Loki","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Floki","4.integrate\u002Fadapters\u002Fhybrid\u002F01.loki","i-simple-icons-grafana",{"title":186,"path":187,"stem":188,"icon":189},"ClickHouse","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fclickhouse","4.integrate\u002Fadapters\u002Fhybrid\u002F02.clickhouse","i-simple-icons-clickhouse",{"title":191,"path":192,"stem":193,"icon":194},"OTLP","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fotlp","4.integrate\u002Fadapters\u002Fhybrid\u002F03.otlp","i-simple-icons-opentelemetry",{"title":196,"path":197,"stem":198,"icon":199},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fhyperdx","4.integrate\u002Fadapters\u002Fhybrid\u002F04.hyperdx","i-custom-hyperdx",{"title":201,"path":202,"stem":203,"children":204,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","4.integrate\u002Fadapters\u002Fself-hosted",[205,210,215],{"title":206,"path":207,"stem":208,"icon":209},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","4.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":211,"path":212,"stem":213,"icon":214},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","4.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":216,"path":217,"stem":218,"icon":219},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","4.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":221,"path":222,"stem":223,"children":224,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","4.integrate\u002Fframeworks",[225,229,234,239,244,249,254,259,264,269,274,279,284,289,293,298,303],{"title":36,"path":226,"stem":227,"icon":228},"\u002Fintegrate\u002Fframeworks\u002Foverview","4.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":230,"path":231,"stem":232,"icon":233},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","4.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":235,"path":236,"stem":237,"icon":238},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","4.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":240,"path":241,"stem":242,"icon":243},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","4.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":245,"path":246,"stem":247,"icon":248},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","4.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":250,"path":251,"stem":252,"icon":253},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","4.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":255,"path":256,"stem":257,"icon":258},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","4.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":260,"path":261,"stem":262,"icon":263},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","4.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":265,"path":266,"stem":267,"icon":268},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","4.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":270,"path":271,"stem":272,"icon":273},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","4.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":275,"path":276,"stem":277,"icon":278},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","4.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":280,"path":281,"stem":282,"icon":283},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","4.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":285,"path":286,"stem":287,"icon":288},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","4.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":290,"path":291,"stem":292,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","4.integrate\u002Fframeworks\u002F13.standalone",{"title":294,"path":295,"stem":296,"icon":297},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","4.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":299,"path":300,"stem":301,"icon":302},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","4.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":304,"path":305,"stem":306,"icon":307},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","4.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":309,"path":310,"stem":311,"children":312,"page":29},"Use Cases","\u002Fuse-cases","5.use-cases",[313,316,321,350,377,409,430,435],{"title":36,"path":314,"stem":315,"icon":102},"\u002Fuse-cases\u002Foverview","5.use-cases\u002F0.overview",{"title":317,"path":318,"stem":319,"icon":320},"Client Logging","\u002Fuse-cases\u002Fclient-logging","5.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":322,"icon":323,"path":324,"stem":325,"children":326,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","5.use-cases\u002F2.ai-sdk",[327,330,335,340,345],{"title":36,"path":328,"stem":329,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","5.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":331,"path":332,"stem":333,"icon":334},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","5.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":336,"path":337,"stem":338,"icon":339},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","5.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":341,"path":342,"stem":343,"icon":344},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","5.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":346,"path":347,"stem":348,"icon":349},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","5.use-cases\u002F2.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":351,"icon":352,"path":353,"stem":354,"children":355,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","5.use-cases\u002F3.better-auth",[356,359,364,369,373],{"title":36,"path":357,"stem":358,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","5.use-cases\u002F3.better-auth\u002F01.overview",{"title":360,"path":361,"stem":362,"icon":363},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","5.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":365,"path":366,"stem":367,"icon":368},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","5.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":370,"path":371,"stem":372,"icon":320},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","5.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":374,"path":375,"stem":376,"icon":107},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","5.use-cases\u002F3.better-auth\u002F05.performance",{"title":378,"icon":379,"path":380,"stem":381,"children":382,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","5.use-cases\u002F4.audit",[383,386,391,396,401,405],{"title":36,"path":384,"stem":385,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","5.use-cases\u002F4.audit\u002F01.overview",{"title":387,"path":388,"stem":389,"icon":390},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","5.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":392,"path":393,"stem":394,"icon":395},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","5.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":397,"path":398,"stem":399,"icon":400},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","5.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":402,"path":403,"stem":404,"icon":379},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","5.use-cases\u002F4.audit\u002F05.compliance",{"title":406,"path":407,"stem":408,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","5.use-cases\u002F4.audit\u002F06.recipes",{"title":346,"icon":107,"path":410,"stem":411,"children":412,"page":29},"\u002Fuse-cases\u002Ftelemetry","5.use-cases\u002F4.telemetry",[413,416,421,426],{"title":36,"path":414,"stem":415,"icon":39},"\u002Fuse-cases\u002Ftelemetry\u002Foverview","5.use-cases\u002F4.telemetry\u002F01.overview",{"title":417,"path":418,"stem":419,"icon":420},"Setup","\u002Fuse-cases\u002Ftelemetry\u002Fsetup","5.use-cases\u002F4.telemetry\u002F02.setup","i-lucide-wrench",{"title":422,"path":423,"stem":424,"icon":425},"Ingest","\u002Fuse-cases\u002Ftelemetry\u002Fingest","5.use-cases\u002F4.telemetry\u002F03.ingest","i-lucide-server",{"title":427,"path":428,"stem":429,"icon":79},"Reference","\u002Fuse-cases\u002Ftelemetry\u002Freference","5.use-cases\u002F4.telemetry\u002F04.reference",{"title":431,"path":432,"stem":433,"icon":434},"Enrichers","\u002Fuse-cases\u002Fenrichers","5.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":436,"path":437,"stem":438,"icon":439},"eve","\u002Fuse-cases\u002Feve","5.use-cases\u002F5.eve","i-custom-eve",{"title":441,"path":442,"stem":443,"children":444,"page":29},"Extend","\u002Fextend","6.extend",[445,449,454,459,464,468,472,476,480,485,490],{"title":36,"path":446,"stem":447,"icon":448},"\u002Fextend\u002Foverview","6.extend\u002F0.overview","i-lucide-blocks",{"title":450,"path":451,"stem":452,"icon":453},"Stream","\u002Fextend\u002Fstream","6.extend\u002F1.stream","i-lucide-radio-tower",{"title":455,"path":456,"stem":457,"icon":458},"Custom framework","\u002Fextend\u002Fcustom-framework","6.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":460,"path":461,"stem":462,"icon":463},"FS reader","\u002Fextend\u002Ffs-reader","6.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":406,"path":465,"stem":466,"icon":467},"\u002Fextend\u002Fconsumer-recipes","6.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":469,"path":470,"stem":471,"icon":448},"Plugins","\u002Fextend\u002Fplugins","6.extend\u002F4.plugins",{"title":473,"path":474,"stem":475,"icon":434},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","6.extend\u002F5.custom-enrichers",{"title":477,"path":478,"stem":479,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","6.extend\u002F6.tail-sampling",{"title":481,"path":482,"stem":483,"icon":484},"Identity headers","\u002Fextend\u002Fidentity-headers","6.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":486,"path":487,"stem":488,"icon":489},"Custom drains","\u002Fextend\u002Fcustom-drains","6.extend\u002F8.custom-drains","i-lucide-share-2",{"title":491,"path":492,"stem":493,"icon":494},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","6.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":427,"path":496,"stem":497,"children":498,"page":29},"\u002Freference","7.reference",[499,504,507,512,516,521],{"title":500,"path":501,"stem":502,"icon":503},"Configuration","\u002Freference\u002Fconfiguration","7.reference\u002F1.configuration","i-lucide-settings",{"title":374,"path":505,"stem":506,"icon":107},"\u002Freference\u002Fperformance","7.reference\u002F2.performance",{"title":508,"path":509,"stem":510,"icon":511},"Vite Plugin","\u002Freference\u002Fvite-plugin","7.reference\u002F3.vite-plugin","i-custom-vite",{"title":513,"path":514,"stem":515,"icon":379},"Best Practices","\u002Freference\u002Fbest-practices","7.reference\u002F4.best-practices",{"title":517,"path":518,"stem":519,"icon":520},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","7.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":522,"path":523,"stem":524,"icon":434},"Agent Skills","\u002Freference\u002Fagent-skills","7.reference\u002F6.agent-skills",{"id":526,"title":527,"body":528,"description":2342,"extension":2343,"links":2344,"meta":2349,"navigation":2350,"path":342,"seo":2351,"stem":343,"__hash__":2352},"docs\u002F5.use-cases\u002F2.ai-sdk\u002F04.metadata.md","Access Metadata",{"type":529,"value":530,"toc":2331},"minimark",[531,540,546,554,568,1081,1084,1091,1106,1282,1289,1292,1323,1326,1720,1723,1775,1781,1795,1933,1937,1943,2327],[532,533,534,535,539],"p",{},"The wide event already contains the full ",[536,537,538],"code",{},"ai"," metadata, but you often want the same data inside your handler — to persist it, surface it to end-users, bill against it, or stream incremental progress to the client.",[532,541,542,545],{},[536,543,544],{},"AILogger"," exposes three methods for that, with no need to touch internal state.",[547,548,550,553],"h2",{"id":549},"getmetadata-final-snapshot",[536,551,552],{},"getMetadata()"," — final snapshot",[532,555,556,557,560,561,563,564,567],{},"Returns a structured ",[536,558,559],{},"AIMetadata"," object that mirrors the ",[536,562,538],{}," field on the wide event. Safe to call at any point, including after the run completes or inside the AI SDK's ",[536,565,566],{},"onFinish",":",[569,570,576],"pre",{"className":571,"code":572,"filename":573,"language":574,"meta":575,"style":575},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\nimport { generateText } from 'ai'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n  const ai = createAILogger(log, {\n    cost: { 'claude-sonnet-4.6': { input: 3, output: 15 } },\n  })\n\n  await generateText({\n    model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'),\n    prompt: 'Summarize this document',\n  })\n\n  const metadata = ai.getMetadata()\n\n  await db.aiRuns.insert({\n    userId: event.context.userId,\n    model: metadata.model,\n    inputTokens: metadata.inputTokens,\n    outputTokens: metadata.outputTokens,\n    estimatedCost: metadata.estimatedCost,\n    finishReason: metadata.finishReason,\n    responseId: metadata.responseId,\n  })\n\n  return { ok: true }\n})\n","server\u002Fapi\u002Fchat.post.ts","typescript","",[536,577,578,611,632,652,659,695,717,739,785,793,798,811,841,858,865,870,890,895,917,940,956,973,990,1007,1024,1041,1048,1053,1073],{"__ignoreMap":575},[579,580,583,587,591,595,598,601,604,608],"span",{"class":581,"line":582},"line",1,[579,584,586],{"class":585},"s7zQu","import",[579,588,590],{"class":589},"sMK4o"," {",[579,592,594],{"class":593},"sTEyZ"," useLogger",[579,596,597],{"class":589}," }",[579,599,600],{"class":585}," from",[579,602,603],{"class":589}," '",[579,605,607],{"class":606},"sfazB","evlog",[579,609,610],{"class":589},"'\n",[579,612,614,616,618,621,623,625,627,630],{"class":581,"line":613},2,[579,615,586],{"class":585},[579,617,590],{"class":589},[579,619,620],{"class":593}," createAILogger",[579,622,597],{"class":589},[579,624,600],{"class":585},[579,626,603],{"class":589},[579,628,629],{"class":606},"evlog\u002Fai",[579,631,610],{"class":589},[579,633,635,637,639,642,644,646,648,650],{"class":581,"line":634},3,[579,636,586],{"class":585},[579,638,590],{"class":589},[579,640,641],{"class":593}," generateText",[579,643,597],{"class":589},[579,645,600],{"class":585},[579,647,603],{"class":589},[579,649,538],{"class":606},[579,651,610],{"class":589},[579,653,655],{"class":581,"line":654},4,[579,656,658],{"emptyLinePlaceholder":657},true,"\n",[579,660,662,665,668,672,675,679,682,686,689,692],{"class":581,"line":661},5,[579,663,664],{"class":585},"export",[579,666,667],{"class":585}," default",[579,669,671],{"class":670},"s2Zo4"," defineEventHandler",[579,673,674],{"class":593},"(",[579,676,678],{"class":677},"spNyl","async",[579,680,681],{"class":589}," (",[579,683,685],{"class":684},"sHdIc","event",[579,687,688],{"class":589},")",[579,690,691],{"class":677}," =>",[579,693,694],{"class":589}," {\n",[579,696,698,701,704,707,709,712,714],{"class":581,"line":697},6,[579,699,700],{"class":677},"  const",[579,702,703],{"class":593}," log",[579,705,706],{"class":589}," =",[579,708,594],{"class":670},[579,710,674],{"class":711},"swJcz",[579,713,685],{"class":593},[579,715,716],{"class":711},")\n",[579,718,720,722,725,727,729,731,734,737],{"class":581,"line":719},7,[579,721,700],{"class":677},[579,723,724],{"class":593}," ai",[579,726,706],{"class":589},[579,728,620],{"class":670},[579,730,674],{"class":711},[579,732,733],{"class":593},"log",[579,735,736],{"class":589},",",[579,738,694],{"class":589},[579,740,742,745,747,749,751,754,757,759,761,764,766,770,772,775,777,780,782],{"class":581,"line":741},8,[579,743,744],{"class":711},"    cost",[579,746,567],{"class":589},[579,748,590],{"class":589},[579,750,603],{"class":589},[579,752,753],{"class":711},"claude-sonnet-4.6",[579,755,756],{"class":589},"'",[579,758,567],{"class":589},[579,760,590],{"class":589},[579,762,763],{"class":711}," input",[579,765,567],{"class":589},[579,767,769],{"class":768},"sbssI"," 3",[579,771,736],{"class":589},[579,773,774],{"class":711}," output",[579,776,567],{"class":589},[579,778,779],{"class":768}," 15",[579,781,597],{"class":589},[579,783,784],{"class":589}," },\n",[579,786,788,791],{"class":581,"line":787},9,[579,789,790],{"class":589},"  }",[579,792,716],{"class":711},[579,794,796],{"class":581,"line":795},10,[579,797,658],{"emptyLinePlaceholder":657},[579,799,801,804,806,808],{"class":581,"line":800},11,[579,802,803],{"class":585},"  await",[579,805,641],{"class":670},[579,807,674],{"class":711},[579,809,810],{"class":589},"{\n",[579,812,814,817,819,821,824,827,829,831,834,836,838],{"class":581,"line":813},12,[579,815,816],{"class":711},"    model",[579,818,567],{"class":589},[579,820,724],{"class":593},[579,822,823],{"class":589},".",[579,825,826],{"class":670},"wrap",[579,828,674],{"class":711},[579,830,756],{"class":589},[579,832,833],{"class":606},"anthropic\u002Fclaude-sonnet-4.6",[579,835,756],{"class":589},[579,837,688],{"class":711},[579,839,840],{"class":589},",\n",[579,842,844,847,849,851,854,856],{"class":581,"line":843},13,[579,845,846],{"class":711},"    prompt",[579,848,567],{"class":589},[579,850,603],{"class":589},[579,852,853],{"class":606},"Summarize this document",[579,855,756],{"class":589},[579,857,840],{"class":589},[579,859,861,863],{"class":581,"line":860},14,[579,862,790],{"class":589},[579,864,716],{"class":711},[579,866,868],{"class":581,"line":867},15,[579,869,658],{"emptyLinePlaceholder":657},[579,871,873,875,878,880,882,884,887],{"class":581,"line":872},16,[579,874,700],{"class":677},[579,876,877],{"class":593}," metadata",[579,879,706],{"class":589},[579,881,724],{"class":593},[579,883,823],{"class":589},[579,885,886],{"class":670},"getMetadata",[579,888,889],{"class":711},"()\n",[579,891,893],{"class":581,"line":892},17,[579,894,658],{"emptyLinePlaceholder":657},[579,896,898,900,903,905,908,910,913,915],{"class":581,"line":897},18,[579,899,803],{"class":585},[579,901,902],{"class":593}," db",[579,904,823],{"class":589},[579,906,907],{"class":593},"aiRuns",[579,909,823],{"class":589},[579,911,912],{"class":670},"insert",[579,914,674],{"class":711},[579,916,810],{"class":589},[579,918,920,923,925,928,930,933,935,938],{"class":581,"line":919},19,[579,921,922],{"class":711},"    userId",[579,924,567],{"class":589},[579,926,927],{"class":593}," event",[579,929,823],{"class":589},[579,931,932],{"class":593},"context",[579,934,823],{"class":589},[579,936,937],{"class":593},"userId",[579,939,840],{"class":589},[579,941,943,945,947,949,951,954],{"class":581,"line":942},20,[579,944,816],{"class":711},[579,946,567],{"class":589},[579,948,877],{"class":593},[579,950,823],{"class":589},[579,952,953],{"class":593},"model",[579,955,840],{"class":589},[579,957,959,962,964,966,968,971],{"class":581,"line":958},21,[579,960,961],{"class":711},"    inputTokens",[579,963,567],{"class":589},[579,965,877],{"class":593},[579,967,823],{"class":589},[579,969,970],{"class":593},"inputTokens",[579,972,840],{"class":589},[579,974,976,979,981,983,985,988],{"class":581,"line":975},22,[579,977,978],{"class":711},"    outputTokens",[579,980,567],{"class":589},[579,982,877],{"class":593},[579,984,823],{"class":589},[579,986,987],{"class":593},"outputTokens",[579,989,840],{"class":589},[579,991,993,996,998,1000,1002,1005],{"class":581,"line":992},23,[579,994,995],{"class":711},"    estimatedCost",[579,997,567],{"class":589},[579,999,877],{"class":593},[579,1001,823],{"class":589},[579,1003,1004],{"class":593},"estimatedCost",[579,1006,840],{"class":589},[579,1008,1010,1013,1015,1017,1019,1022],{"class":581,"line":1009},24,[579,1011,1012],{"class":711},"    finishReason",[579,1014,567],{"class":589},[579,1016,877],{"class":593},[579,1018,823],{"class":589},[579,1020,1021],{"class":593},"finishReason",[579,1023,840],{"class":589},[579,1025,1027,1030,1032,1034,1036,1039],{"class":581,"line":1026},25,[579,1028,1029],{"class":711},"    responseId",[579,1031,567],{"class":589},[579,1033,877],{"class":593},[579,1035,823],{"class":589},[579,1037,1038],{"class":593},"responseId",[579,1040,840],{"class":589},[579,1042,1044,1046],{"class":581,"line":1043},26,[579,1045,790],{"class":589},[579,1047,716],{"class":711},[579,1049,1051],{"class":581,"line":1050},27,[579,1052,658],{"emptyLinePlaceholder":657},[579,1054,1056,1059,1061,1064,1066,1070],{"class":581,"line":1055},28,[579,1057,1058],{"class":585},"  return",[579,1060,590],{"class":589},[579,1062,1063],{"class":711}," ok",[579,1065,567],{"class":589},[579,1067,1069],{"class":1068},"sfNiH"," true",[579,1071,1072],{"class":589}," }\n",[579,1074,1076,1079],{"class":581,"line":1075},29,[579,1077,1078],{"class":589},"}",[579,1080,716],{"class":593},[532,1082,1083],{},"The snapshot is a fresh copy: mutating it never affects the underlying state or subsequent calls.",[547,1085,1087,1090],{"id":1086},"getestimatedcost-quick-cost-check",[536,1088,1089],{},"getEstimatedCost()"," — quick cost check",[532,1092,1093,1094,1097,1098,1101,1102,1105],{},"Convenience for ",[536,1095,1096],{},"getMetadata().estimatedCost",". Returns the cost in dollars, or ",[536,1099,1100],{},"undefined"," if no ",[536,1103,1104],{},"cost"," map was provided or the model is not in the map.",[569,1107,1109],{"className":571,"code":1108,"language":574,"meta":575,"style":575},"const ai = createAILogger(log, {\n  cost: { 'claude-sonnet-4.6': { input: 3, output: 15 } },\n})\n\nawait generateText({ model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'), prompt })\n\nconst cost = ai.getEstimatedCost()\nconsole.log(`This call cost $${cost?.toFixed(4)}`)\n",[536,1110,1111,1131,1168,1174,1178,1220,1224,1242],{"__ignoreMap":575},[579,1112,1113,1116,1119,1122,1124,1127,1129],{"class":581,"line":582},[579,1114,1115],{"class":677},"const",[579,1117,1118],{"class":593}," ai ",[579,1120,1121],{"class":589},"=",[579,1123,620],{"class":670},[579,1125,1126],{"class":593},"(log",[579,1128,736],{"class":589},[579,1130,694],{"class":589},[579,1132,1133,1136,1138,1140,1142,1144,1146,1148,1150,1152,1154,1156,1158,1160,1162,1164,1166],{"class":581,"line":613},[579,1134,1135],{"class":711},"  cost",[579,1137,567],{"class":589},[579,1139,590],{"class":589},[579,1141,603],{"class":589},[579,1143,753],{"class":711},[579,1145,756],{"class":589},[579,1147,567],{"class":589},[579,1149,590],{"class":589},[579,1151,763],{"class":711},[579,1153,567],{"class":589},[579,1155,769],{"class":768},[579,1157,736],{"class":589},[579,1159,774],{"class":711},[579,1161,567],{"class":589},[579,1163,779],{"class":768},[579,1165,597],{"class":589},[579,1167,784],{"class":589},[579,1169,1170,1172],{"class":581,"line":634},[579,1171,1078],{"class":589},[579,1173,716],{"class":593},[579,1175,1176],{"class":581,"line":654},[579,1177,658],{"emptyLinePlaceholder":657},[579,1179,1180,1183,1185,1187,1190,1193,1195,1197,1199,1201,1203,1205,1207,1209,1211,1213,1216,1218],{"class":581,"line":661},[579,1181,1182],{"class":585},"await",[579,1184,641],{"class":670},[579,1186,674],{"class":593},[579,1188,1189],{"class":589},"{",[579,1191,1192],{"class":711}," model",[579,1194,567],{"class":589},[579,1196,724],{"class":593},[579,1198,823],{"class":589},[579,1200,826],{"class":670},[579,1202,674],{"class":593},[579,1204,756],{"class":589},[579,1206,833],{"class":606},[579,1208,756],{"class":589},[579,1210,688],{"class":593},[579,1212,736],{"class":589},[579,1214,1215],{"class":593}," prompt ",[579,1217,1078],{"class":589},[579,1219,716],{"class":593},[579,1221,1222],{"class":581,"line":697},[579,1223,658],{"emptyLinePlaceholder":657},[579,1225,1226,1228,1231,1233,1235,1237,1240],{"class":581,"line":719},[579,1227,1115],{"class":677},[579,1229,1230],{"class":593}," cost ",[579,1232,1121],{"class":589},[579,1234,724],{"class":593},[579,1236,823],{"class":589},[579,1238,1239],{"class":670},"getEstimatedCost",[579,1241,889],{"class":593},[579,1243,1244,1247,1249,1251,1253,1256,1259,1262,1264,1267,1270,1272,1275,1277,1280],{"class":581,"line":741},[579,1245,1246],{"class":593},"console",[579,1248,823],{"class":589},[579,1250,733],{"class":670},[579,1252,674],{"class":593},[579,1254,1255],{"class":589},"`",[579,1257,1258],{"class":606},"This call cost $",[579,1260,1261],{"class":589},"${",[579,1263,1104],{"class":593},[579,1265,1266],{"class":589},"?.",[579,1268,1269],{"class":670},"toFixed",[579,1271,674],{"class":593},[579,1273,1274],{"class":768},"4",[579,1276,688],{"class":593},[579,1278,1279],{"class":589},"}`",[579,1281,716],{"class":593},[547,1283,1285,1288],{"id":1284},"onupdatecallback-incremental-updates",[536,1286,1287],{},"onUpdate(callback)"," — incremental updates",[532,1290,1291],{},"Subscribe to metadata updates. The callback fires every time the underlying state flushes:",[1293,1294,1295,1299,1306,1309],"ul",{},[1296,1297,1298],"li",{},"Once per step in multi-step agent runs",[1296,1300,1301,1302,1305],{},"Once per ",[536,1303,1304],{},"captureEmbed"," call",[1296,1307,1308],{},"On model errors",[1296,1310,1311,1312,1315,1316,1319,1320,1322],{},"On ",[536,1313,1314],{},"createEvlogIntegration","'s ",[536,1317,1318],{},"onEnd"," (v7) or ",[536,1321,566],{}," (v6)",[532,1324,1325],{},"Each invocation receives a fresh snapshot. Returns an unsubscribe function. Subscriber errors are isolated and never break the AI flow.",[569,1327,1330],{"className":571,"code":1328,"filename":1329,"language":574,"meta":575,"style":575},"import { ToolLoopAgent, createAgentUIStreamResponse, stepCountIs } from 'ai'\nimport { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n  const { messages } = await readBody(event)\n  const ai = createAILogger(log)\n\n  ai.onUpdate((metadata) => {\n    pushToClient(event, {\n      type: 'ai-progress',\n      step: metadata.steps,\n      tokens: metadata.totalTokens,\n      cost: metadata.estimatedCost,\n    })\n  })\n\n  const agent = new ToolLoopAgent({\n    model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'),\n    tools: { searchWeb, queryDatabase },\n    stopWhen: stepCountIs(5),\n  })\n\n  return createAgentUIStreamResponse({ agent, uiMessages: messages })\n})\n","server\u002Fapi\u002Fagent.post.ts",[536,1331,1332,1361,1379,1397,1401,1423,1439,1464,1480,1484,1507,1520,1536,1552,1568,1583,1590,1596,1600,1618,1642,1661,1679,1685,1689,1714],{"__ignoreMap":575},[579,1333,1334,1336,1338,1341,1343,1346,1348,1351,1353,1355,1357,1359],{"class":581,"line":582},[579,1335,586],{"class":585},[579,1337,590],{"class":589},[579,1339,1340],{"class":593}," ToolLoopAgent",[579,1342,736],{"class":589},[579,1344,1345],{"class":593}," createAgentUIStreamResponse",[579,1347,736],{"class":589},[579,1349,1350],{"class":593}," stepCountIs",[579,1352,597],{"class":589},[579,1354,600],{"class":585},[579,1356,603],{"class":589},[579,1358,538],{"class":606},[579,1360,610],{"class":589},[579,1362,1363,1365,1367,1369,1371,1373,1375,1377],{"class":581,"line":613},[579,1364,586],{"class":585},[579,1366,590],{"class":589},[579,1368,594],{"class":593},[579,1370,597],{"class":589},[579,1372,600],{"class":585},[579,1374,603],{"class":589},[579,1376,607],{"class":606},[579,1378,610],{"class":589},[579,1380,1381,1383,1385,1387,1389,1391,1393,1395],{"class":581,"line":634},[579,1382,586],{"class":585},[579,1384,590],{"class":589},[579,1386,620],{"class":593},[579,1388,597],{"class":589},[579,1390,600],{"class":585},[579,1392,603],{"class":589},[579,1394,629],{"class":606},[579,1396,610],{"class":589},[579,1398,1399],{"class":581,"line":654},[579,1400,658],{"emptyLinePlaceholder":657},[579,1402,1403,1405,1407,1409,1411,1413,1415,1417,1419,1421],{"class":581,"line":661},[579,1404,664],{"class":585},[579,1406,667],{"class":585},[579,1408,671],{"class":670},[579,1410,674],{"class":593},[579,1412,678],{"class":677},[579,1414,681],{"class":589},[579,1416,685],{"class":684},[579,1418,688],{"class":589},[579,1420,691],{"class":677},[579,1422,694],{"class":589},[579,1424,1425,1427,1429,1431,1433,1435,1437],{"class":581,"line":697},[579,1426,700],{"class":677},[579,1428,703],{"class":593},[579,1430,706],{"class":589},[579,1432,594],{"class":670},[579,1434,674],{"class":711},[579,1436,685],{"class":593},[579,1438,716],{"class":711},[579,1440,1441,1443,1445,1448,1450,1452,1455,1458,1460,1462],{"class":581,"line":719},[579,1442,700],{"class":677},[579,1444,590],{"class":589},[579,1446,1447],{"class":593}," messages",[579,1449,597],{"class":589},[579,1451,706],{"class":589},[579,1453,1454],{"class":585}," await",[579,1456,1457],{"class":670}," readBody",[579,1459,674],{"class":711},[579,1461,685],{"class":593},[579,1463,716],{"class":711},[579,1465,1466,1468,1470,1472,1474,1476,1478],{"class":581,"line":741},[579,1467,700],{"class":677},[579,1469,724],{"class":593},[579,1471,706],{"class":589},[579,1473,620],{"class":670},[579,1475,674],{"class":711},[579,1477,733],{"class":593},[579,1479,716],{"class":711},[579,1481,1482],{"class":581,"line":787},[579,1483,658],{"emptyLinePlaceholder":657},[579,1485,1486,1489,1491,1494,1496,1498,1501,1503,1505],{"class":581,"line":795},[579,1487,1488],{"class":593},"  ai",[579,1490,823],{"class":589},[579,1492,1493],{"class":670},"onUpdate",[579,1495,674],{"class":711},[579,1497,674],{"class":589},[579,1499,1500],{"class":684},"metadata",[579,1502,688],{"class":589},[579,1504,691],{"class":677},[579,1506,694],{"class":589},[579,1508,1509,1512,1514,1516,1518],{"class":581,"line":800},[579,1510,1511],{"class":670},"    pushToClient",[579,1513,674],{"class":711},[579,1515,685],{"class":593},[579,1517,736],{"class":589},[579,1519,694],{"class":589},[579,1521,1522,1525,1527,1529,1532,1534],{"class":581,"line":813},[579,1523,1524],{"class":711},"      type",[579,1526,567],{"class":589},[579,1528,603],{"class":589},[579,1530,1531],{"class":606},"ai-progress",[579,1533,756],{"class":589},[579,1535,840],{"class":589},[579,1537,1538,1541,1543,1545,1547,1550],{"class":581,"line":843},[579,1539,1540],{"class":711},"      step",[579,1542,567],{"class":589},[579,1544,877],{"class":593},[579,1546,823],{"class":589},[579,1548,1549],{"class":593},"steps",[579,1551,840],{"class":589},[579,1553,1554,1557,1559,1561,1563,1566],{"class":581,"line":860},[579,1555,1556],{"class":711},"      tokens",[579,1558,567],{"class":589},[579,1560,877],{"class":593},[579,1562,823],{"class":589},[579,1564,1565],{"class":593},"totalTokens",[579,1567,840],{"class":589},[579,1569,1570,1573,1575,1577,1579,1581],{"class":581,"line":867},[579,1571,1572],{"class":711},"      cost",[579,1574,567],{"class":589},[579,1576,877],{"class":593},[579,1578,823],{"class":589},[579,1580,1004],{"class":593},[579,1582,840],{"class":589},[579,1584,1585,1588],{"class":581,"line":872},[579,1586,1587],{"class":589},"    }",[579,1589,716],{"class":711},[579,1591,1592,1594],{"class":581,"line":892},[579,1593,790],{"class":589},[579,1595,716],{"class":711},[579,1597,1598],{"class":581,"line":897},[579,1599,658],{"emptyLinePlaceholder":657},[579,1601,1602,1604,1607,1609,1612,1614,1616],{"class":581,"line":919},[579,1603,700],{"class":677},[579,1605,1606],{"class":593}," agent",[579,1608,706],{"class":589},[579,1610,1611],{"class":589}," new",[579,1613,1340],{"class":670},[579,1615,674],{"class":711},[579,1617,810],{"class":589},[579,1619,1620,1622,1624,1626,1628,1630,1632,1634,1636,1638,1640],{"class":581,"line":942},[579,1621,816],{"class":711},[579,1623,567],{"class":589},[579,1625,724],{"class":593},[579,1627,823],{"class":589},[579,1629,826],{"class":670},[579,1631,674],{"class":711},[579,1633,756],{"class":589},[579,1635,833],{"class":606},[579,1637,756],{"class":589},[579,1639,688],{"class":711},[579,1641,840],{"class":589},[579,1643,1644,1647,1649,1651,1654,1656,1659],{"class":581,"line":958},[579,1645,1646],{"class":711},"    tools",[579,1648,567],{"class":589},[579,1650,590],{"class":589},[579,1652,1653],{"class":593}," searchWeb",[579,1655,736],{"class":589},[579,1657,1658],{"class":593}," queryDatabase",[579,1660,784],{"class":589},[579,1662,1663,1666,1668,1670,1672,1675,1677],{"class":581,"line":975},[579,1664,1665],{"class":711},"    stopWhen",[579,1667,567],{"class":589},[579,1669,1350],{"class":670},[579,1671,674],{"class":711},[579,1673,1674],{"class":768},"5",[579,1676,688],{"class":711},[579,1678,840],{"class":589},[579,1680,1681,1683],{"class":581,"line":992},[579,1682,790],{"class":589},[579,1684,716],{"class":711},[579,1686,1687],{"class":581,"line":1009},[579,1688,658],{"emptyLinePlaceholder":657},[579,1690,1691,1693,1695,1697,1699,1701,1703,1706,1708,1710,1712],{"class":581,"line":1026},[579,1692,1058],{"class":585},[579,1694,1345],{"class":670},[579,1696,674],{"class":711},[579,1698,1189],{"class":589},[579,1700,1606],{"class":593},[579,1702,736],{"class":589},[579,1704,1705],{"class":711}," uiMessages",[579,1707,567],{"class":589},[579,1709,1447],{"class":593},[579,1711,597],{"class":589},[579,1713,716],{"class":711},[579,1715,1716,1718],{"class":581,"line":1043},[579,1717,1078],{"class":589},[579,1719,716],{"class":593},[532,1721,1722],{},"For one-off cleanup:",[569,1724,1726],{"className":571,"code":1725,"language":574,"meta":575,"style":575},"const off = ai.onUpdate((metadata) => { \u002F* ... *\u002F })\n\u002F\u002F later\noff()\n",[536,1727,1728,1763,1768],{"__ignoreMap":575},[579,1729,1730,1732,1735,1737,1739,1741,1743,1745,1747,1749,1751,1753,1755,1759,1761],{"class":581,"line":582},[579,1731,1115],{"class":677},[579,1733,1734],{"class":593}," off ",[579,1736,1121],{"class":589},[579,1738,724],{"class":593},[579,1740,823],{"class":589},[579,1742,1493],{"class":670},[579,1744,674],{"class":593},[579,1746,674],{"class":589},[579,1748,1500],{"class":684},[579,1750,688],{"class":589},[579,1752,691],{"class":677},[579,1754,590],{"class":589},[579,1756,1758],{"class":1757},"sHwdD"," \u002F* ... *\u002F",[579,1760,597],{"class":589},[579,1762,716],{"class":593},[579,1764,1765],{"class":581,"line":613},[579,1766,1767],{"class":1757},"\u002F\u002F later\n",[579,1769,1770,1773],{"class":581,"line":634},[579,1771,1772],{"class":670},"off",[579,1774,889],{"class":593},[547,1776,1778,1780],{"id":1777},"aimetadata-shape",[536,1779,559],{}," shape",[532,1782,1783,1785,1786,1788,1789,1791,1792,1794],{},[536,1784,559],{}," is a public type alias for the snapshot returned by ",[536,1787,552],{}," and passed to ",[536,1790,1493],{}," listeners. It has the same shape as the ",[536,1793,538],{}," field on the wide event.",[569,1796,1798],{"className":571,"code":1797,"language":574,"meta":575,"style":575},"import type { AIMetadata, AIMetadataListener } from 'evlog\u002Fai'\n\nfunction handleProgress(metadata: AIMetadata) {\n  console.log(`${metadata.calls} calls, $${metadata.estimatedCost ?? 0}`)\n}\n\nconst listener: AIMetadataListener = handleProgress\nai.onUpdate(listener)\n",[536,1799,1800,1827,1831,1852,1897,1902,1906,1922],{"__ignoreMap":575},[579,1801,1802,1804,1807,1809,1812,1814,1817,1819,1821,1823,1825],{"class":581,"line":582},[579,1803,586],{"class":585},[579,1805,1806],{"class":585}," type",[579,1808,590],{"class":589},[579,1810,1811],{"class":593}," AIMetadata",[579,1813,736],{"class":589},[579,1815,1816],{"class":593}," AIMetadataListener",[579,1818,597],{"class":589},[579,1820,600],{"class":585},[579,1822,603],{"class":589},[579,1824,629],{"class":606},[579,1826,610],{"class":589},[579,1828,1829],{"class":581,"line":613},[579,1830,658],{"emptyLinePlaceholder":657},[579,1832,1833,1836,1839,1841,1843,1845,1848,1850],{"class":581,"line":634},[579,1834,1835],{"class":677},"function",[579,1837,1838],{"class":670}," handleProgress",[579,1840,674],{"class":589},[579,1842,1500],{"class":684},[579,1844,567],{"class":589},[579,1846,1811],{"class":1847},"sBMFI",[579,1849,688],{"class":589},[579,1851,694],{"class":589},[579,1853,1854,1857,1859,1861,1863,1866,1868,1870,1873,1875,1878,1880,1882,1884,1887,1890,1893,1895],{"class":581,"line":654},[579,1855,1856],{"class":593},"  console",[579,1858,823],{"class":589},[579,1860,733],{"class":670},[579,1862,674],{"class":711},[579,1864,1865],{"class":589},"`${",[579,1867,1500],{"class":593},[579,1869,823],{"class":589},[579,1871,1872],{"class":593},"calls",[579,1874,1078],{"class":589},[579,1876,1877],{"class":606}," calls, $",[579,1879,1261],{"class":589},[579,1881,1500],{"class":593},[579,1883,823],{"class":589},[579,1885,1886],{"class":593},"estimatedCost ",[579,1888,1889],{"class":589},"??",[579,1891,1892],{"class":768}," 0",[579,1894,1279],{"class":589},[579,1896,716],{"class":711},[579,1898,1899],{"class":581,"line":661},[579,1900,1901],{"class":589},"}\n",[579,1903,1904],{"class":581,"line":697},[579,1905,658],{"emptyLinePlaceholder":657},[579,1907,1908,1910,1913,1915,1917,1919],{"class":581,"line":719},[579,1909,1115],{"class":677},[579,1911,1912],{"class":593}," listener",[579,1914,567],{"class":589},[579,1916,1816],{"class":1847},[579,1918,706],{"class":589},[579,1920,1921],{"class":593}," handleProgress\n",[579,1923,1924,1926,1928,1930],{"class":581,"line":741},[579,1925,538],{"class":593},[579,1927,823],{"class":589},[579,1929,1493],{"class":670},[579,1931,1932],{"class":593},"(listener)\n",[547,1934,1936],{"id":1935},"captured-data-reference","Captured Data Reference",[532,1938,1939,1940,567],{},"Every field that may show up under ",[536,1941,1942],{},"ai.*",[1944,1945,1946,1962],"table",{},[1947,1948,1949],"thead",{},[1950,1951,1952,1956,1959],"tr",{},[1953,1954,1955],"th",{},"Wide event field",[1953,1957,1958],{},"Source",[1953,1960,1961],{},"Description",[1963,1964,1965,1979,1994,2007,2033,2048,2063,2078,2093,2108,2123,2144,2168,2186,2199,2212,2225,2237,2249,2262,2281,2295,2312],"tbody",{},[1950,1966,1967,1973,1976],{},[1968,1969,1970],"td",{},[536,1971,1972],{},"ai.calls",[1968,1974,1975],{},"Call count",[1968,1977,1978],{},"Number of AI calls in this request",[1950,1980,1981,1986,1991],{},[1968,1982,1983],{},[536,1984,1985],{},"ai.model",[1968,1987,1988],{},[536,1989,1990],{},"response.modelId",[1968,1992,1993],{},"Model that served the response",[1950,1995,1996,2001,2004],{},[1968,1997,1998],{},[536,1999,2000],{},"ai.models",[1968,2002,2003],{},"All model IDs",[1968,2005,2006],{},"Array of all models used (only when > 1)",[1950,2008,2009,2014,2019],{},[1968,2010,2011],{},[536,2012,2013],{},"ai.provider",[1968,2015,2016],{},[536,2017,2018],{},"model.provider",[1968,2020,2021,2022,2025,2026,2025,2029,2032],{},"Provider (",[536,2023,2024],{},"anthropic",", ",[536,2027,2028],{},"openai",[536,2030,2031],{},"google",", etc.)",[1950,2034,2035,2040,2045],{},[1968,2036,2037],{},[536,2038,2039],{},"ai.inputTokens",[1968,2041,2042],{},[536,2043,2044],{},"usage.inputTokens.total",[1968,2046,2047],{},"Total input tokens across all calls",[1950,2049,2050,2055,2060],{},[1968,2051,2052],{},[536,2053,2054],{},"ai.outputTokens",[1968,2056,2057],{},[536,2058,2059],{},"usage.outputTokens.total",[1968,2061,2062],{},"Total output tokens across all calls",[1950,2064,2065,2070,2073],{},[1968,2066,2067],{},[536,2068,2069],{},"ai.totalTokens",[1968,2071,2072],{},"Computed",[1968,2074,2075],{},[536,2076,2077],{},"inputTokens + outputTokens",[1950,2079,2080,2085,2090],{},[1968,2081,2082],{},[536,2083,2084],{},"ai.cacheReadTokens",[1968,2086,2087],{},[536,2088,2089],{},"usage.inputTokens.cacheRead",[1968,2091,2092],{},"Tokens served from prompt cache",[1950,2094,2095,2100,2105],{},[1968,2096,2097],{},[536,2098,2099],{},"ai.cacheWriteTokens",[1968,2101,2102],{},[536,2103,2104],{},"usage.inputTokens.cacheWrite",[1968,2106,2107],{},"Tokens written to prompt cache",[1950,2109,2110,2115,2120],{},[1968,2111,2112],{},[536,2113,2114],{},"ai.reasoningTokens",[1968,2116,2117],{},[536,2118,2119],{},"usage.outputTokens.reasoning",[1968,2121,2122],{},"Reasoning tokens (extended thinking)",[1950,2124,2125,2130,2135],{},[1968,2126,2127],{},[536,2128,2129],{},"ai.finishReason",[1968,2131,2132],{},[536,2133,2134],{},"finishReason.unified",[1968,2136,2137,2138,2025,2141,2032],{},"Why generation ended (",[536,2139,2140],{},"stop",[536,2142,2143],{},"tool-calls",[1950,2145,2146,2151,2154],{},[1968,2147,2148],{},[536,2149,2150],{},"ai.toolCalls",[1968,2152,2153],{},"Content \u002F stream chunks",[1968,2155,2156,2159,2160,2163,2164,2167],{},[536,2157,2158],{},"string[]"," of tool names by default, or ",[536,2161,2162],{},"Array\u003C{ name, input }>"," when ",[536,2165,2166],{},"toolInputs"," is enabled",[1950,2169,2170,2175,2180],{},[1968,2171,2172],{},[536,2173,2174],{},"ai.responseId",[1968,2176,2177],{},[536,2178,2179],{},"response.id",[1968,2181,2182,2183,688],{},"Provider-assigned response ID (e.g. Anthropic's ",[536,2184,2185],{},"msg_...",[1950,2187,2188,2193,2196],{},[1968,2189,2190],{},[536,2191,2192],{},"ai.steps",[1968,2194,2195],{},"Step count",[1968,2197,2198],{},"Number of LLM calls (only when > 1)",[1950,2200,2201,2206,2209],{},[1968,2202,2203],{},[536,2204,2205],{},"ai.stepsUsage",[1968,2207,2208],{},"Per-step accumulation",[1968,2210,2211],{},"Per-step token and tool call breakdown (only when > 1 step)",[1950,2213,2214,2219,2222],{},[1968,2215,2216],{},[536,2217,2218],{},"ai.msToFirstChunk",[1968,2220,2221],{},"Stream timing",[1968,2223,2224],{},"Time to first text chunk (streaming only)",[1950,2226,2227,2232,2234],{},[1968,2228,2229],{},[536,2230,2231],{},"ai.msToFinish",[1968,2233,2221],{},[1968,2235,2236],{},"Total stream duration (streaming only)",[1950,2238,2239,2244,2246],{},[1968,2240,2241],{},[536,2242,2243],{},"ai.tokensPerSecond",[1968,2245,2072],{},[1968,2247,2248],{},"Output tokens per second (streaming only)",[1950,2250,2251,2256,2259],{},[1968,2252,2253],{},[536,2254,2255],{},"ai.error",[1968,2257,2258],{},"Error capture",[1968,2260,2261],{},"Error message if a model call fails",[1950,2263,2264,2269,2272],{},[1968,2265,2266],{},[536,2267,2268],{},"ai.tools",[1968,2270,2271],{},"Telemetry integration",[1968,2273,2274,2275,2278,2279,688],{},"Per-tool ",[536,2276,2277],{},"{ name, durationMs, success, error? }"," (requires ",[536,2280,1314],{},[1950,2282,2283,2288,2290],{},[1968,2284,2285],{},[536,2286,2287],{},"ai.totalDurationMs",[1968,2289,2271],{},[1968,2291,2292,2293,688],{},"Total generation wall time (requires ",[536,2294,1314],{},[1950,2296,2297,2302,2306],{},[1968,2298,2299],{},[536,2300,2301],{},"ai.embedding",[1968,2303,2304],{},[536,2305,1304],{},[1968,2307,2308,2311],{},[536,2309,2310],{},"{ model?, tokens, dimensions?, count? }"," — embedding metadata",[1950,2313,2314,2319,2321],{},[1968,2315,2316],{},[536,2317,2318],{},"ai.estimatedCost",[1968,2320,2072],{},[1968,2322,2323,2324,2326],{},"Estimated cost in dollars (requires ",[536,2325,1104],{}," option)",[2328,2329,2330],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}",{"title":575,"searchDepth":613,"depth":613,"links":2332},[2333,2335,2337,2339,2341],{"id":549,"depth":613,"text":2334},"getMetadata() — final snapshot",{"id":1086,"depth":613,"text":2336},"getEstimatedCost() — quick cost check",{"id":1284,"depth":613,"text":2338},"onUpdate(callback) — incremental updates",{"id":1777,"depth":613,"text":2340},"AIMetadata shape",{"id":1935,"depth":613,"text":1936},"Read AI metadata from your handler — persist it, surface it to end-users, bill against it, or stream incremental progress to the client.","md",[2345,2348],{"label":36,"icon":39,"to":328,"color":2346,"variant":2347},"neutral","subtle",{"label":336,"icon":339,"to":337,"color":2346,"variant":2347},{},{"title":341,"icon":344},{"title":527,"description":2342},"eA4wB3NbkTYy0rGCTOgL1731TdbxEn0Cf530Q5aimnk",[2354,2356],{"title":336,"path":337,"stem":338,"description":2355,"icon":339,"children":-1},"Configure tool input capture (with redaction and truncation), enable cost estimation per model, and handle errors during AI calls.",{"title":346,"path":347,"stem":348,"description":2357,"icon":349,"children":-1},"Add tool execution timing and total wall time with createEvlogIntegration. Compose with other middleware like supermemory or guardrails.",1785675165211]