[{"data":1,"prerenderedAt":1198},["ShallowReactive",2],{"navigation_docs":3,"-use-cases-ai-sdk-options":444,"-use-cases-ai-sdk-options-surround":1193},[4,30,80,245,358,413],{"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},"Integrate","\u002Fintegrate","3.integrate",[85,89,157],{"title":36,"path":86,"stem":87,"icon":88},"\u002Fintegrate\u002Foverview","3.integrate\u002F0.overview","i-lucide-plug",{"title":90,"path":91,"stem":92,"children":93,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","3.integrate\u002Fadapters",[94,97,137],{"title":36,"path":95,"stem":96,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","3.integrate\u002Fadapters\u002F01.overview",{"title":98,"path":99,"stem":100,"children":101,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","3.integrate\u002Fadapters\u002Fcloud",[102,107,112,117,122,127,132],{"title":103,"path":104,"stem":105,"icon":106},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","3.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":108,"path":109,"stem":110,"icon":111},"OTLP","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fotlp","3.integrate\u002Fadapters\u002Fcloud\u002F02.otlp","i-simple-icons-opentelemetry",{"title":113,"path":114,"stem":115,"icon":116},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","3.integrate\u002Fadapters\u002Fcloud\u002F03.posthog","i-simple-icons-posthog",{"title":118,"path":119,"stem":120,"icon":121},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","3.integrate\u002Fadapters\u002Fcloud\u002F04.sentry","i-simple-icons-sentry",{"title":123,"path":124,"stem":125,"icon":126},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","3.integrate\u002Fadapters\u002Fcloud\u002F05.better-stack","i-simple-icons-betterstack",{"title":128,"path":129,"stem":130,"icon":131},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","3.integrate\u002Fadapters\u002Fcloud\u002F06.datadog","i-simple-icons-datadog",{"title":133,"path":134,"stem":135,"icon":136},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fhyperdx","3.integrate\u002Fadapters\u002Fcloud\u002F07.hyperdx","i-custom-hyperdx",{"title":138,"path":139,"stem":140,"children":141,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","3.integrate\u002Fadapters\u002Fself-hosted",[142,147,152],{"title":143,"path":144,"stem":145,"icon":146},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","3.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":148,"path":149,"stem":150,"icon":151},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","3.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":153,"path":154,"stem":155,"icon":156},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","3.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":158,"path":159,"stem":160,"children":161,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","3.integrate\u002Fframeworks",[162,166,171,176,181,186,191,196,201,206,211,216,221,226,230,235,240],{"title":36,"path":163,"stem":164,"icon":165},"\u002Fintegrate\u002Fframeworks\u002Foverview","3.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":167,"path":168,"stem":169,"icon":170},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","3.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":172,"path":173,"stem":174,"icon":175},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","3.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":177,"path":178,"stem":179,"icon":180},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","3.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":182,"path":183,"stem":184,"icon":185},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","3.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":187,"path":188,"stem":189,"icon":190},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","3.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":192,"path":193,"stem":194,"icon":195},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","3.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":197,"path":198,"stem":199,"icon":200},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","3.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":202,"path":203,"stem":204,"icon":205},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","3.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":207,"path":208,"stem":209,"icon":210},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","3.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":212,"path":213,"stem":214,"icon":215},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","3.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":217,"path":218,"stem":219,"icon":220},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","3.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":222,"path":223,"stem":224,"icon":225},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","3.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":227,"path":228,"stem":229,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","3.integrate\u002Fframeworks\u002F13.standalone",{"title":231,"path":232,"stem":233,"icon":234},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","3.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":236,"path":237,"stem":238,"icon":239},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","3.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":241,"path":242,"stem":243,"icon":244},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","3.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":246,"path":247,"stem":248,"children":249,"page":29},"Use Cases","\u002Fuse-cases","4.use-cases",[250,254,259,288,316,348,353],{"title":36,"path":251,"stem":252,"icon":253},"\u002Fuse-cases\u002Foverview","4.use-cases\u002F0.overview","i-lucide-list-checks",{"title":255,"path":256,"stem":257,"icon":258},"Client Logging","\u002Fuse-cases\u002Fclient-logging","4.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":260,"icon":261,"path":262,"stem":263,"children":264,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","4.use-cases\u002F2.ai-sdk",[265,268,273,278,283],{"title":36,"path":266,"stem":267,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","4.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":269,"path":270,"stem":271,"icon":272},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","4.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":274,"path":275,"stem":276,"icon":277},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","4.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":279,"path":280,"stem":281,"icon":282},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","4.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":284,"path":285,"stem":286,"icon":287},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","4.use-cases\u002F2.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":289,"icon":290,"path":291,"stem":292,"children":293,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","4.use-cases\u002F3.better-auth",[294,297,302,307,311],{"title":36,"path":295,"stem":296,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","4.use-cases\u002F3.better-auth\u002F01.overview",{"title":298,"path":299,"stem":300,"icon":301},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","4.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":303,"path":304,"stem":305,"icon":306},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","4.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":308,"path":309,"stem":310,"icon":258},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","4.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":312,"path":313,"stem":314,"icon":315},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","4.use-cases\u002F3.better-auth\u002F05.performance","i-lucide-gauge",{"title":317,"icon":318,"path":319,"stem":320,"children":321,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","4.use-cases\u002F4.audit",[322,325,330,335,340,344],{"title":36,"path":323,"stem":324,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","4.use-cases\u002F4.audit\u002F01.overview",{"title":326,"path":327,"stem":328,"icon":329},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","4.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":331,"path":332,"stem":333,"icon":334},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","4.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":336,"path":337,"stem":338,"icon":339},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","4.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":341,"path":342,"stem":343,"icon":318},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","4.use-cases\u002F4.audit\u002F05.compliance",{"title":345,"path":346,"stem":347,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","4.use-cases\u002F4.audit\u002F06.recipes",{"title":349,"path":350,"stem":351,"icon":352},"Enrichers","\u002Fuse-cases\u002Fenrichers","4.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":354,"path":355,"stem":356,"icon":357},"eve","\u002Fuse-cases\u002Feve","4.use-cases\u002F5.eve","i-custom-eve",{"title":359,"path":360,"stem":361,"children":362,"page":29},"Extend","\u002Fextend","5.extend",[363,367,372,377,382,386,390,394,398,403,408],{"title":36,"path":364,"stem":365,"icon":366},"\u002Fextend\u002Foverview","5.extend\u002F0.overview","i-lucide-blocks",{"title":368,"path":369,"stem":370,"icon":371},"Stream","\u002Fextend\u002Fstream","5.extend\u002F1.stream","i-lucide-radio-tower",{"title":373,"path":374,"stem":375,"icon":376},"Custom framework","\u002Fextend\u002Fcustom-framework","5.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":378,"path":379,"stem":380,"icon":381},"FS reader","\u002Fextend\u002Ffs-reader","5.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":345,"path":383,"stem":384,"icon":385},"\u002Fextend\u002Fconsumer-recipes","5.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":387,"path":388,"stem":389,"icon":366},"Plugins","\u002Fextend\u002Fplugins","5.extend\u002F4.plugins",{"title":391,"path":392,"stem":393,"icon":352},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","5.extend\u002F5.custom-enrichers",{"title":395,"path":396,"stem":397,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","5.extend\u002F6.tail-sampling",{"title":399,"path":400,"stem":401,"icon":402},"Identity headers","\u002Fextend\u002Fidentity-headers","5.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":404,"path":405,"stem":406,"icon":407},"Custom drains","\u002Fextend\u002Fcustom-drains","5.extend\u002F8.custom-drains","i-lucide-share-2",{"title":409,"path":410,"stem":411,"icon":412},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","5.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":414,"path":415,"stem":416,"children":417,"page":29},"Reference","\u002Freference","6.reference",[418,423,426,431,435,440],{"title":419,"path":420,"stem":421,"icon":422},"Configuration","\u002Freference\u002Fconfiguration","6.reference\u002F1.configuration","i-lucide-settings",{"title":312,"path":424,"stem":425,"icon":315},"\u002Freference\u002Fperformance","6.reference\u002F2.performance",{"title":427,"path":428,"stem":429,"icon":430},"Vite Plugin","\u002Freference\u002Fvite-plugin","6.reference\u002F3.vite-plugin","i-custom-vite",{"title":432,"path":433,"stem":434,"icon":318},"Best Practices","\u002Freference\u002Fbest-practices","6.reference\u002F4.best-practices",{"title":436,"path":437,"stem":438,"icon":439},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","6.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":441,"path":442,"stem":443,"icon":352},"Agent Skills","\u002Freference\u002Fagent-skills","6.reference\u002F6.agent-skills",{"id":445,"title":274,"body":446,"description":1181,"extension":1182,"links":1183,"meta":1189,"navigation":1190,"path":275,"seo":1191,"stem":276,"__hash__":1192},"docs\u002F4.use-cases\u002F2.ai-sdk\u002F03.options.md",{"type":447,"value":448,"toc":1172},"minimark",[449,457,527,532,546,558,563,619,623,665,669,820,870,883,887,897,1003,1013,1020,1024,1027,1161,1168],[450,451,452,456],"p",{},[453,454,455],"code",{},"createAILogger(log, options?)"," accepts a single options bag. Every option is opt-in — defaults stay safe and quiet.",[458,459,460,479],"table",{},[461,462,463],"thead",{},[464,465,466,470,473,476],"tr",{},[467,468,469],"th",{},"Option",[467,471,472],{},"Type",[467,474,475],{},"Default",[467,477,478],{},"Description",[480,481,482,503],"tbody",{},[464,483,484,490,495,500],{},[485,486,487],"td",{},[453,488,489],{},"toolInputs",[485,491,492],{},[453,493,494],{},"boolean | ToolInputsOptions",[485,496,497],{},[453,498,499],{},"false",[485,501,502],{},"Capture tool call inputs alongside their names (off by default to avoid leaking sensitive data).",[464,504,505,510,515,520],{},[485,506,507],{},[453,508,509],{},"cost",[485,511,512],{},[453,513,514],{},"Record\u003Cstring, ModelCost>",[485,516,517],{},[453,518,519],{},"undefined",[485,521,522,523,526],{},"Pricing map. Keys are model IDs, values are ",[453,524,525],{},"{ input, output }"," in dollars per 1M tokens.",[528,529,531],"h2",{"id":530},"tool-inputs","Tool Inputs",[450,533,534,535,538,539,542,543,545],{},"By default, ",[453,536,537],{},"ai.toolCalls"," is a ",[453,540,541],{},"string[]"," of tool names. Enable ",[453,544,489],{}," to capture inputs too — useful for debugging agent behaviour or auditing what data the model reached for.",[547,548,549,550,553,554,557],"warning",{},"Tool inputs can be large and may contain sensitive data (SQL, API keys, customer PII). Use ",[453,551,552],{},"maxLength"," and ",[453,555,556],{},"transform"," rather than enabling raw capture in production.",[559,560,562],"h3",{"id":561},"capture-everything","Capture everything",[564,565,570],"pre",{"className":566,"code":567,"language":568,"meta":569,"style":569},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","const ai = createAILogger(log, { toolInputs: true })\n","typescript","",[453,571,572],{"__ignoreMap":569},[573,574,577,581,585,589,593,596,599,602,606,609,613,616],"span",{"class":575,"line":576},"line",1,[573,578,580],{"class":579},"spNyl","const",[573,582,584],{"class":583},"sTEyZ"," ai ",[573,586,588],{"class":587},"sMK4o","=",[573,590,592],{"class":591},"s2Zo4"," createAILogger",[573,594,595],{"class":583},"(log",[573,597,598],{"class":587},",",[573,600,601],{"class":587}," {",[573,603,605],{"class":604},"swJcz"," toolInputs",[573,607,608],{"class":587},":",[573,610,612],{"class":611},"sfNiH"," true",[573,614,615],{"class":587}," }",[573,617,618],{"class":583},")\n",[559,620,622],{"id":621},"truncate-long-inputs","Truncate long inputs",[564,624,626],{"className":566,"code":625,"language":568,"meta":569,"style":569},"const ai = createAILogger(log, { toolInputs: { maxLength: 200 } })\n",[453,627,628],{"__ignoreMap":569},[573,629,630,632,634,636,638,640,642,644,646,648,650,653,655,659,661,663],{"class":575,"line":576},[573,631,580],{"class":579},[573,633,584],{"class":583},[573,635,588],{"class":587},[573,637,592],{"class":591},[573,639,595],{"class":583},[573,641,598],{"class":587},[573,643,601],{"class":587},[573,645,605],{"class":604},[573,647,608],{"class":587},[573,649,601],{"class":587},[573,651,652],{"class":604}," maxLength",[573,654,608],{"class":587},[573,656,658],{"class":657},"sbssI"," 200",[573,660,615],{"class":587},[573,662,615],{"class":587},[573,664,618],{"class":583},[559,666,668],{"id":667},"redact-sensitive-fields","Redact sensitive fields",[564,670,672],{"className":566,"code":671,"language":568,"meta":569,"style":569},"const ai = createAILogger(log, {\n  toolInputs: {\n    maxLength: 500,\n    transform: (input, toolName) => {\n      if (toolName === 'queryDB') return { sql: '***' }\n      return input\n    },\n  },\n})\n",[453,673,674,691,701,715,743,791,800,806,812],{"__ignoreMap":569},[573,675,676,678,680,682,684,686,688],{"class":575,"line":576},[573,677,580],{"class":579},[573,679,584],{"class":583},[573,681,588],{"class":587},[573,683,592],{"class":591},[573,685,595],{"class":583},[573,687,598],{"class":587},[573,689,690],{"class":587}," {\n",[573,692,694,697,699],{"class":575,"line":693},2,[573,695,696],{"class":604},"  toolInputs",[573,698,608],{"class":587},[573,700,690],{"class":587},[573,702,704,707,709,712],{"class":575,"line":703},3,[573,705,706],{"class":604},"    maxLength",[573,708,608],{"class":587},[573,710,711],{"class":657}," 500",[573,713,714],{"class":587},",\n",[573,716,718,721,723,726,730,732,735,738,741],{"class":575,"line":717},4,[573,719,720],{"class":591},"    transform",[573,722,608],{"class":587},[573,724,725],{"class":587}," (",[573,727,729],{"class":728},"sHdIc","input",[573,731,598],{"class":587},[573,733,734],{"class":728}," toolName",[573,736,737],{"class":587},")",[573,739,740],{"class":579}," =>",[573,742,690],{"class":587},[573,744,746,750,752,755,758,761,765,768,771,774,776,779,781,783,786,788],{"class":575,"line":745},5,[573,747,749],{"class":748},"s7zQu","      if",[573,751,725],{"class":604},[573,753,754],{"class":583},"toolName",[573,756,757],{"class":587}," ===",[573,759,760],{"class":587}," '",[573,762,764],{"class":763},"sfazB","queryDB",[573,766,767],{"class":587},"'",[573,769,770],{"class":604},") ",[573,772,773],{"class":748},"return",[573,775,601],{"class":587},[573,777,778],{"class":604}," sql",[573,780,608],{"class":587},[573,782,760],{"class":587},[573,784,785],{"class":763},"***",[573,787,767],{"class":587},[573,789,790],{"class":587}," }\n",[573,792,794,797],{"class":575,"line":793},6,[573,795,796],{"class":748},"      return",[573,798,799],{"class":583}," input\n",[573,801,803],{"class":575,"line":802},7,[573,804,805],{"class":587},"    },\n",[573,807,809],{"class":575,"line":808},8,[573,810,811],{"class":587},"  },\n",[573,813,815,818],{"class":575,"line":814},9,[573,816,817],{"class":587},"}",[573,819,618],{"class":583},[458,821,822,833],{},[461,823,824],{},[464,825,826,829,831],{},[467,827,828],{},"Sub-option",[467,830,472],{},[467,832,478],{},[480,834,835,853],{},[464,836,837,841,846],{},[485,838,839],{},[453,840,552],{},[485,842,843],{},[453,844,845],{},"number",[485,847,848,849,852],{},"Truncate stringified inputs exceeding this character length (appends ",[453,850,851],{},"…",").",[464,854,855,859,864],{},[485,856,857],{},[453,858,556],{},[485,860,861],{},[453,862,863],{},"(input, toolName) => unknown",[485,865,866,867,869],{},"Custom transform applied before ",[453,868,552],{},". Use to redact fields or reshape data.",[450,871,872,873,875,876,878,879,882],{},"When ",[453,874,489],{}," is enabled, ",[453,877,537],{}," becomes an ",[453,880,881],{},"Array\u003C{ name, input }>"," instead of a plain string array.",[528,884,886],{"id":885},"cost-estimation","Cost Estimation",[450,888,889,890,892,893,896],{},"Pass a ",[453,891,509],{}," map to compute estimated dollar cost per call. The middleware multiplies token usage by the per-million rates and sets ",[453,894,895],{},"ai.estimatedCost"," on the wide event.",[564,898,900],{"className":566,"code":899,"language":568,"meta":569,"style":569},"const ai = createAILogger(log, {\n  cost: {\n    'claude-sonnet-4.6': { input: 3, output: 15 },\n    'gpt-4o': { input: 2.5, output: 10 },\n  },\n})\n",[453,901,902,918,927,962,993,997],{"__ignoreMap":569},[573,903,904,906,908,910,912,914,916],{"class":575,"line":576},[573,905,580],{"class":579},[573,907,584],{"class":583},[573,909,588],{"class":587},[573,911,592],{"class":591},[573,913,595],{"class":583},[573,915,598],{"class":587},[573,917,690],{"class":587},[573,919,920,923,925],{"class":575,"line":693},[573,921,922],{"class":604},"  cost",[573,924,608],{"class":587},[573,926,690],{"class":587},[573,928,929,932,935,937,939,941,944,946,949,951,954,956,959],{"class":575,"line":703},[573,930,931],{"class":587},"    '",[573,933,934],{"class":604},"claude-sonnet-4.6",[573,936,767],{"class":587},[573,938,608],{"class":587},[573,940,601],{"class":587},[573,942,943],{"class":604}," input",[573,945,608],{"class":587},[573,947,948],{"class":657}," 3",[573,950,598],{"class":587},[573,952,953],{"class":604}," output",[573,955,608],{"class":587},[573,957,958],{"class":657}," 15",[573,960,961],{"class":587}," },\n",[573,963,964,966,969,971,973,975,977,979,982,984,986,988,991],{"class":575,"line":717},[573,965,931],{"class":587},[573,967,968],{"class":604},"gpt-4o",[573,970,767],{"class":587},[573,972,608],{"class":587},[573,974,601],{"class":587},[573,976,943],{"class":604},[573,978,608],{"class":587},[573,980,981],{"class":657}," 2.5",[573,983,598],{"class":587},[573,985,953],{"class":604},[573,987,608],{"class":587},[573,989,990],{"class":657}," 10",[573,992,961],{"class":587},[573,994,995],{"class":575,"line":745},[573,996,811],{"class":587},[573,998,999,1001],{"class":575,"line":793},[573,1000,817],{"class":587},[573,1002,618],{"class":583},[450,1004,1005,1006,1012],{},"Read the result from your handler with ",[1007,1008,1009],"a",{"href":280},[453,1010,1011],{},"ai.getEstimatedCost()"," — useful for billing dashboards or warning users before expensive calls.",[1014,1015,1016,1017,1019],"tip",{},"Keep your ",[453,1018,509],{}," map in one file alongside model selection so renaming a model in production also updates pricing. Avoid hardcoding per-route maps.",[528,1021,1023],{"id":1022},"error-handling","Error Handling",[450,1025,1026],{},"If a model call fails, the middleware captures the error into the wide event before re-throwing:",[564,1028,1033],{"className":1029,"code":1030,"filename":1031,"language":1032,"meta":569,"style":569},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"ai\": {\n    \"calls\": 1,\n    \"model\": \"claude-sonnet-4.6\",\n    \"provider\": \"anthropic\",\n    \"finishReason\": \"error\",\n    \"error\": \"API rate limit exceeded\"\n  }\n}\n","Wide Event","json",[453,1034,1035,1040,1055,1073,1093,1113,1133,1151,1156],{"__ignoreMap":569},[573,1036,1037],{"class":575,"line":576},[573,1038,1039],{"class":587},"{\n",[573,1041,1042,1045,1048,1051,1053],{"class":575,"line":693},[573,1043,1044],{"class":587},"  \"",[573,1046,1047],{"class":579},"ai",[573,1049,1050],{"class":587},"\"",[573,1052,608],{"class":587},[573,1054,690],{"class":587},[573,1056,1057,1060,1064,1066,1068,1071],{"class":575,"line":703},[573,1058,1059],{"class":587},"    \"",[573,1061,1063],{"class":1062},"sBMFI","calls",[573,1065,1050],{"class":587},[573,1067,608],{"class":587},[573,1069,1070],{"class":657}," 1",[573,1072,714],{"class":587},[573,1074,1075,1077,1080,1082,1084,1087,1089,1091],{"class":575,"line":717},[573,1076,1059],{"class":587},[573,1078,1079],{"class":1062},"model",[573,1081,1050],{"class":587},[573,1083,608],{"class":587},[573,1085,1086],{"class":587}," \"",[573,1088,934],{"class":763},[573,1090,1050],{"class":587},[573,1092,714],{"class":587},[573,1094,1095,1097,1100,1102,1104,1106,1109,1111],{"class":575,"line":745},[573,1096,1059],{"class":587},[573,1098,1099],{"class":1062},"provider",[573,1101,1050],{"class":587},[573,1103,608],{"class":587},[573,1105,1086],{"class":587},[573,1107,1108],{"class":763},"anthropic",[573,1110,1050],{"class":587},[573,1112,714],{"class":587},[573,1114,1115,1117,1120,1122,1124,1126,1129,1131],{"class":575,"line":793},[573,1116,1059],{"class":587},[573,1118,1119],{"class":1062},"finishReason",[573,1121,1050],{"class":587},[573,1123,608],{"class":587},[573,1125,1086],{"class":587},[573,1127,1128],{"class":763},"error",[573,1130,1050],{"class":587},[573,1132,714],{"class":587},[573,1134,1135,1137,1139,1141,1143,1145,1148],{"class":575,"line":802},[573,1136,1059],{"class":587},[573,1138,1128],{"class":1062},[573,1140,1050],{"class":587},[573,1142,608],{"class":587},[573,1144,1086],{"class":587},[573,1146,1147],{"class":763},"API rate limit exceeded",[573,1149,1150],{"class":587},"\"\n",[573,1152,1153],{"class":575,"line":808},[573,1154,1155],{"class":587},"  }\n",[573,1157,1158],{"class":575,"line":814},[573,1159,1160],{"class":587},"}\n",[450,1162,1163,1164,1167],{},"Stream errors (e.g. content filter) are also captured from the stream's error chunks. Your error-handling code (",[453,1165,1166],{},"try\u002Fcatch",", route-level error handlers) keeps working as usual — the middleware only observes.",[1169,1170,1171],"style",{},"html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}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 .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}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 .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 .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}",{"title":569,"searchDepth":693,"depth":693,"links":1173},[1174,1179,1180],{"id":530,"depth":693,"text":531,"children":1175},[1176,1177,1178],{"id":561,"depth":703,"text":562},{"id":621,"depth":703,"text":622},{"id":667,"depth":703,"text":668},{"id":885,"depth":693,"text":886},{"id":1022,"depth":693,"text":1023},"Configure tool input capture (with redaction and truncation), enable cost estimation per model, and handle errors during AI calls.","md",[1184,1187],{"label":36,"icon":39,"to":266,"color":1185,"variant":1186},"neutral","subtle",{"label":1188,"icon":272,"to":270,"color":1185,"variant":1186},"Usage Patterns",{},{"title":274,"icon":277},{"title":274,"description":1181},"xoxicNRn-mxuaHTHGhoZYwtQS8UV5jdv8PnqlqWAgjc",[1194,1196],{"title":269,"path":270,"stem":271,"description":1195,"icon":272,"children":-1},"streamText, generateText, multi-step agents, RAG, and multiple models — every common AI SDK pattern wired into evlog.",{"title":279,"path":280,"stem":281,"description":1197,"icon":282,"children":-1},"Read AI metadata from your handler — persist it, surface it to end-users, bill against it, or stream incremental progress to the client.",1782925725059]