[{"data":1,"prerenderedAt":1614},["ShallowReactive",2],{"navigation_docs":3,"-integrate-frameworks-aws-lambda":529,"-integrate-frameworks-aws-lambda-surround":1609},[4,30,80,128,308,440,499],{"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",[445,449,454,459,463,468,472,476,480,484,489,494],{"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":453},"Diagnostics channel","\u002Fextend\u002Fdiagnostics-channel","6.extend\u002F11.diagnostics-channel",{"title":464,"path":465,"stem":466,"icon":467},"FS reader","\u002Fextend\u002Ffs-reader","6.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":406,"path":469,"stem":470,"icon":471},"\u002Fextend\u002Fconsumer-recipes","6.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":473,"path":474,"stem":475,"icon":448},"Plugins","\u002Fextend\u002Fplugins","6.extend\u002F4.plugins",{"title":477,"path":478,"stem":479,"icon":434},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","6.extend\u002F5.custom-enrichers",{"title":481,"path":482,"stem":483,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","6.extend\u002F6.tail-sampling",{"title":485,"path":486,"stem":487,"icon":488},"Identity headers","\u002Fextend\u002Fidentity-headers","6.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":490,"path":491,"stem":492,"icon":493},"Custom drains","\u002Fextend\u002Fcustom-drains","6.extend\u002F8.custom-drains","i-lucide-share-2",{"title":495,"path":496,"stem":497,"icon":498},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","6.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":427,"path":500,"stem":501,"children":502,"page":29},"\u002Freference","7.reference",[503,508,511,516,520,525],{"title":504,"path":505,"stem":506,"icon":507},"Configuration","\u002Freference\u002Fconfiguration","7.reference\u002F1.configuration","i-lucide-settings",{"title":374,"path":509,"stem":510,"icon":107},"\u002Freference\u002Fperformance","7.reference\u002F2.performance",{"title":512,"path":513,"stem":514,"icon":515},"Vite Plugin","\u002Freference\u002Fvite-plugin","7.reference\u002F3.vite-plugin","i-custom-vite",{"title":517,"path":518,"stem":519,"icon":379},"Best Practices","\u002Freference\u002Fbest-practices","7.reference\u002F4.best-practices",{"title":521,"path":522,"stem":523,"icon":524},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","7.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":526,"path":527,"stem":528,"icon":434},"Agent Skills","\u002Freference\u002Fagent-skills","7.reference\u002F6.agent-skills",{"id":530,"title":304,"body":531,"description":1602,"extension":1603,"links":1604,"meta":1605,"navigation":1606,"path":305,"seo":1607,"stem":306,"__hash__":1608},"docs\u002F4.integrate\u002Fframeworks\u002F16.aws-lambda.md",{"type":532,"value":533,"toc":1590},"minimark",[534,565,605,614,625,640,654,657,662,733,737,1246,1255,1262,1280,1405,1418,1422,1440,1546,1550,1586],[535,536,537,538,542,543,547,548,552,553,556,557,560,561,564],"p",{},"AWS Lambda has ",[539,540,541],"strong",{},"no HTTP middleware lifecycle"," like Nuxt or Express, so evlog behaves like ",[544,545,546],"a",{"href":291},"standalone TypeScript",": call ",[549,550,551],"code",{},"initLogger()"," once, create a logger ",[539,554,555],{},"per invocation"," (or per SQS message) with ",[549,558,559],{},"createLogger()",", then call ",[549,562,563],{},"log.emit()"," when work finishes.",[566,567,570,573,592],"prompt",{":actions":568,"description":569,"icon":307},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my AWS Lambda function",[535,571,572],{},"Set up evlog in an AWS Lambda function (e.g. SQS consumer).",[574,575,576,580,583,586,589],"ul",{},[577,578,579],"li",{},"Install evlog: pnpm add evlog",[577,581,582],{},"Call initLogger({ env: { service: 'my-fn' } }) once at module load (cold start)",[577,584,585],{},"In the handler, create a new createLogger({ messageId, ... }) per invocation or per message",[577,587,588],{},"Use log.set() to accumulate context; call log.emit() when done",[577,590,591],{},"Avoid a single module-level logger instance reused across invocations (Lambda reuses runtimes)",[535,593,594,595,600,601],{},"Docs: ",[544,596,597],{"href":597,"rel":598},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Faws-lambda",[599],"nofollow","\nAdapters: ",[544,602,603],{"href":603,"rel":604},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[599],[606,607,609,610,613],"h2",{"id":608},"why-not-one-global-createlogger","Why not one global ",[549,611,612],{},"createLogger","?",[535,615,616,617,620,621,624],{},"Lambda ",[539,618,619],{},"execution environments are reused",": the same process can handle many invocations in sequence. Module-level variables persist, so ",[539,622,623],{},"one shared logger instance"," can leak fields from a previous invocation into the next.",[535,626,627,630,631,633,634,639],{},[539,628,629],{},"Do this:"," ",[549,632,551],{}," once at the top level (configuration only), and ",[539,635,636,638],{},[549,637,559],{}," inside the handler"," (or inside the loop over SQS records) for each unit of work.",[535,641,642,645,646,649,650,653],{},[539,643,644],{},"Dependency injection"," (passing ",[549,647,648],{},"log"," into functions) is optional—it helps tests and clarity—but what matters is ",[539,651,652],{},"one logger per invocation",", not whether you use DI.",[606,655,25],{"id":656},"quick-start",[658,659,661],"h3",{"id":660},"_1-install","1. Install",[663,664,665,690,704,718],"code-group",{},[666,667,673],"pre",{"className":668,"code":669,"filename":670,"language":671,"meta":672,"style":672},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog\n","pnpm","bash","",[549,674,675],{"__ignoreMap":672},[676,677,680,683,687],"span",{"class":678,"line":679},"line",1,[676,681,670],{"class":682},"sBMFI",[676,684,686],{"class":685},"sfazB"," add",[676,688,689],{"class":685}," evlog\n",[666,691,694],{"className":668,"code":692,"filename":693,"language":671,"meta":672,"style":672},"bun add evlog\n","bun",[549,695,696],{"__ignoreMap":672},[676,697,698,700,702],{"class":678,"line":679},[676,699,693],{"class":682},[676,701,686],{"class":685},[676,703,689],{"class":685},[666,705,708],{"className":668,"code":706,"filename":707,"language":671,"meta":672,"style":672},"yarn add evlog\n","yarn",[549,709,710],{"__ignoreMap":672},[676,711,712,714,716],{"class":678,"line":679},[676,713,707],{"class":682},[676,715,686],{"class":685},[676,717,689],{"class":685},[666,719,722],{"className":668,"code":720,"filename":721,"language":671,"meta":672,"style":672},"npm install evlog\n","npm",[549,723,724],{"__ignoreMap":672},[676,725,726,728,731],{"class":678,"line":679},[676,727,721],{"class":682},[676,729,730],{"class":685}," install",[676,732,689],{"class":685},[658,734,736],{"id":735},"_2-initialize-once-log-per-invocation","2. Initialize once, log per invocation",[666,738,743],{"className":739,"code":740,"filename":741,"language":742,"meta":672,"style":672},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import type { SQSEvent } from 'aws-lambda'\nimport { initLogger, createLogger } from 'evlog'\n\ninitLogger({\n  env: { service: 'sqs-consumer', environment: process.env.NODE_ENV },\n})\n\nexport async function handler(event: SQSEvent) {\n  for (const record of event.Records) {\n    const log = createLogger({\n      messageId: record.messageId,\n      approximateReceiveCount: record.attributes?.ApproximateReceiveCount,\n    })\n\n    try {\n      log.set({ queue: { name: record.eventSourceARN } })\n      \u002F\u002F … parse record.body and process the message\n      log.set({ status: 'ok' })\n    } catch (error) {\n      log.error(error instanceof Error ? error : new Error(String(error)))\n      log.set({ status: 'error' })\n      throw error\n    } finally {\n      log.emit()\n    }\n  }\n}\n","src\u002Fhandler.ts","typescript",[549,744,745,777,804,811,824,873,882,887,919,950,968,986,1009,1017,1022,1030,1071,1078,1107,1124,1169,1196,1205,1215,1228,1234,1240],{"__ignoreMap":672},[676,746,747,751,754,758,762,765,768,771,774],{"class":678,"line":679},[676,748,750],{"class":749},"s7zQu","import",[676,752,753],{"class":749}," type",[676,755,757],{"class":756},"sMK4o"," {",[676,759,761],{"class":760},"sTEyZ"," SQSEvent",[676,763,764],{"class":756}," }",[676,766,767],{"class":749}," from",[676,769,770],{"class":756}," '",[676,772,773],{"class":685},"aws-lambda",[676,775,776],{"class":756},"'\n",[676,778,780,782,784,787,790,793,795,797,799,802],{"class":678,"line":779},2,[676,781,750],{"class":749},[676,783,757],{"class":756},[676,785,786],{"class":760}," initLogger",[676,788,789],{"class":756},",",[676,791,792],{"class":760}," createLogger",[676,794,764],{"class":756},[676,796,767],{"class":749},[676,798,770],{"class":756},[676,800,801],{"class":685},"evlog",[676,803,776],{"class":756},[676,805,807],{"class":678,"line":806},3,[676,808,810],{"emptyLinePlaceholder":809},true,"\n",[676,812,814,818,821],{"class":678,"line":813},4,[676,815,817],{"class":816},"s2Zo4","initLogger",[676,819,820],{"class":760},"(",[676,822,823],{"class":756},"{\n",[676,825,827,831,834,836,839,841,843,846,849,851,854,856,859,862,865,867,870],{"class":678,"line":826},5,[676,828,830],{"class":829},"swJcz","  env",[676,832,833],{"class":756},":",[676,835,757],{"class":756},[676,837,838],{"class":829}," service",[676,840,833],{"class":756},[676,842,770],{"class":756},[676,844,845],{"class":685},"sqs-consumer",[676,847,848],{"class":756},"'",[676,850,789],{"class":756},[676,852,853],{"class":829}," environment",[676,855,833],{"class":756},[676,857,858],{"class":760}," process",[676,860,861],{"class":756},".",[676,863,864],{"class":760},"env",[676,866,861],{"class":756},[676,868,869],{"class":760},"NODE_ENV ",[676,871,872],{"class":756},"},\n",[676,874,876,879],{"class":678,"line":875},6,[676,877,878],{"class":756},"}",[676,880,881],{"class":760},")\n",[676,883,885],{"class":678,"line":884},7,[676,886,810],{"emptyLinePlaceholder":809},[676,888,890,893,897,900,903,905,909,911,913,916],{"class":678,"line":889},8,[676,891,892],{"class":749},"export",[676,894,896],{"class":895},"spNyl"," async",[676,898,899],{"class":895}," function",[676,901,902],{"class":816}," handler",[676,904,820],{"class":756},[676,906,908],{"class":907},"sHdIc","event",[676,910,833],{"class":756},[676,912,761],{"class":682},[676,914,915],{"class":756},")",[676,917,918],{"class":756}," {\n",[676,920,922,925,928,931,934,937,940,942,945,948],{"class":678,"line":921},9,[676,923,924],{"class":749},"  for",[676,926,927],{"class":829}," (",[676,929,930],{"class":895},"const",[676,932,933],{"class":760}," record",[676,935,936],{"class":756}," of",[676,938,939],{"class":760}," event",[676,941,861],{"class":756},[676,943,944],{"class":760},"Records",[676,946,947],{"class":829},") ",[676,949,823],{"class":756},[676,951,953,956,959,962,964,966],{"class":678,"line":952},10,[676,954,955],{"class":895},"    const",[676,957,958],{"class":760}," log",[676,960,961],{"class":756}," =",[676,963,792],{"class":816},[676,965,820],{"class":829},[676,967,823],{"class":756},[676,969,971,974,976,978,980,983],{"class":678,"line":970},11,[676,972,973],{"class":829},"      messageId",[676,975,833],{"class":756},[676,977,933],{"class":760},[676,979,861],{"class":756},[676,981,982],{"class":760},"messageId",[676,984,985],{"class":756},",\n",[676,987,989,992,994,996,998,1001,1004,1007],{"class":678,"line":988},12,[676,990,991],{"class":829},"      approximateReceiveCount",[676,993,833],{"class":756},[676,995,933],{"class":760},[676,997,861],{"class":756},[676,999,1000],{"class":760},"attributes",[676,1002,1003],{"class":756},"?.",[676,1005,1006],{"class":760},"ApproximateReceiveCount",[676,1008,985],{"class":756},[676,1010,1012,1015],{"class":678,"line":1011},13,[676,1013,1014],{"class":756},"    }",[676,1016,881],{"class":829},[676,1018,1020],{"class":678,"line":1019},14,[676,1021,810],{"emptyLinePlaceholder":809},[676,1023,1025,1028],{"class":678,"line":1024},15,[676,1026,1027],{"class":749},"    try",[676,1029,918],{"class":756},[676,1031,1033,1036,1038,1041,1043,1046,1049,1051,1053,1056,1058,1060,1062,1065,1067,1069],{"class":678,"line":1032},16,[676,1034,1035],{"class":760},"      log",[676,1037,861],{"class":756},[676,1039,1040],{"class":816},"set",[676,1042,820],{"class":829},[676,1044,1045],{"class":756},"{",[676,1047,1048],{"class":829}," queue",[676,1050,833],{"class":756},[676,1052,757],{"class":756},[676,1054,1055],{"class":829}," name",[676,1057,833],{"class":756},[676,1059,933],{"class":760},[676,1061,861],{"class":756},[676,1063,1064],{"class":760},"eventSourceARN",[676,1066,764],{"class":756},[676,1068,764],{"class":756},[676,1070,881],{"class":829},[676,1072,1074],{"class":678,"line":1073},17,[676,1075,1077],{"class":1076},"sHwdD","      \u002F\u002F … parse record.body and process the message\n",[676,1079,1081,1083,1085,1087,1089,1091,1094,1096,1098,1101,1103,1105],{"class":678,"line":1080},18,[676,1082,1035],{"class":760},[676,1084,861],{"class":756},[676,1086,1040],{"class":816},[676,1088,820],{"class":829},[676,1090,1045],{"class":756},[676,1092,1093],{"class":829}," status",[676,1095,833],{"class":756},[676,1097,770],{"class":756},[676,1099,1100],{"class":685},"ok",[676,1102,848],{"class":756},[676,1104,764],{"class":756},[676,1106,881],{"class":829},[676,1108,1110,1112,1115,1117,1120,1122],{"class":678,"line":1109},19,[676,1111,1014],{"class":756},[676,1113,1114],{"class":749}," catch",[676,1116,927],{"class":829},[676,1118,1119],{"class":760},"error",[676,1121,947],{"class":829},[676,1123,823],{"class":756},[676,1125,1127,1129,1131,1133,1135,1137,1140,1143,1146,1149,1152,1155,1157,1159,1162,1164,1166],{"class":678,"line":1126},20,[676,1128,1035],{"class":760},[676,1130,861],{"class":756},[676,1132,1119],{"class":816},[676,1134,820],{"class":829},[676,1136,1119],{"class":760},[676,1138,1139],{"class":756}," instanceof",[676,1141,1142],{"class":682}," Error",[676,1144,1145],{"class":756}," ?",[676,1147,1148],{"class":760}," error",[676,1150,1151],{"class":756}," :",[676,1153,1154],{"class":756}," new",[676,1156,1142],{"class":816},[676,1158,820],{"class":829},[676,1160,1161],{"class":816},"String",[676,1163,820],{"class":829},[676,1165,1119],{"class":760},[676,1167,1168],{"class":829},")))\n",[676,1170,1172,1174,1176,1178,1180,1182,1184,1186,1188,1190,1192,1194],{"class":678,"line":1171},21,[676,1173,1035],{"class":760},[676,1175,861],{"class":756},[676,1177,1040],{"class":816},[676,1179,820],{"class":829},[676,1181,1045],{"class":756},[676,1183,1093],{"class":829},[676,1185,833],{"class":756},[676,1187,770],{"class":756},[676,1189,1119],{"class":685},[676,1191,848],{"class":756},[676,1193,764],{"class":756},[676,1195,881],{"class":829},[676,1197,1199,1202],{"class":678,"line":1198},22,[676,1200,1201],{"class":749},"      throw",[676,1203,1204],{"class":760}," error\n",[676,1206,1208,1210,1213],{"class":678,"line":1207},23,[676,1209,1014],{"class":756},[676,1211,1212],{"class":749}," finally",[676,1214,918],{"class":756},[676,1216,1218,1220,1222,1225],{"class":678,"line":1217},24,[676,1219,1035],{"class":760},[676,1221,861],{"class":756},[676,1223,1224],{"class":816},"emit",[676,1226,1227],{"class":829},"()\n",[676,1229,1231],{"class":678,"line":1230},25,[676,1232,1233],{"class":756},"    }\n",[676,1235,1237],{"class":678,"line":1236},26,[676,1238,1239],{"class":756},"  }\n",[676,1241,1243],{"class":678,"line":1242},27,[676,1244,1245],{"class":756},"}\n",[535,1247,1248,1249,630,1252,1254],{},"If you process the whole batch as one logical unit, use a ",[539,1250,1251],{},"single",[549,1253,559],{}," per handler invocation with batch metadata instead of one logger per record.",[606,1256,1258,1259],{"id":1257},"stdout-and-silent","Stdout and ",[549,1260,1261],{},"silent",[535,1263,1264,1265,1268,1269,1272,1273,1276,1277,861],{},"Many teams ingest Lambda logs from ",[539,1266,1267],{},"CloudWatch"," via stdout. If you use a ",[539,1270,1271],{},"drain adapter"," (OTLP, Datadog, Axiom, etc.) and want JSON or platform-specific formatting without duplicate console noise, set ",[549,1274,1275],{},"silent: true"," in production—see ",[544,1278,504],{"href":1279},"\u002Freference\u002Fconfiguration#silent-mode",[666,1281,1283],{"className":739,"code":1282,"filename":741,"language":742,"meta":672,"style":672},"import { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { initLogger } from 'evlog'\n\ninitLogger({\n  env: { service: 'sqs-consumer' },\n  silent: process.env.NODE_ENV === 'production',\n  drain: createAxiomDrain(),\n})\n",[549,1284,1285,1305,1323,1327,1335,1356,1385,1399],{"__ignoreMap":672},[676,1286,1287,1289,1291,1294,1296,1298,1300,1303],{"class":678,"line":679},[676,1288,750],{"class":749},[676,1290,757],{"class":756},[676,1292,1293],{"class":760}," createAxiomDrain",[676,1295,764],{"class":756},[676,1297,767],{"class":749},[676,1299,770],{"class":756},[676,1301,1302],{"class":685},"evlog\u002Faxiom",[676,1304,776],{"class":756},[676,1306,1307,1309,1311,1313,1315,1317,1319,1321],{"class":678,"line":779},[676,1308,750],{"class":749},[676,1310,757],{"class":756},[676,1312,786],{"class":760},[676,1314,764],{"class":756},[676,1316,767],{"class":749},[676,1318,770],{"class":756},[676,1320,801],{"class":685},[676,1322,776],{"class":756},[676,1324,1325],{"class":678,"line":806},[676,1326,810],{"emptyLinePlaceholder":809},[676,1328,1329,1331,1333],{"class":678,"line":813},[676,1330,817],{"class":816},[676,1332,820],{"class":760},[676,1334,823],{"class":756},[676,1336,1337,1339,1341,1343,1345,1347,1349,1351,1353],{"class":678,"line":826},[676,1338,830],{"class":829},[676,1340,833],{"class":756},[676,1342,757],{"class":756},[676,1344,838],{"class":829},[676,1346,833],{"class":756},[676,1348,770],{"class":756},[676,1350,845],{"class":685},[676,1352,848],{"class":756},[676,1354,1355],{"class":756}," },\n",[676,1357,1358,1361,1363,1365,1367,1369,1371,1373,1376,1378,1381,1383],{"class":678,"line":875},[676,1359,1360],{"class":829},"  silent",[676,1362,833],{"class":756},[676,1364,858],{"class":760},[676,1366,861],{"class":756},[676,1368,864],{"class":760},[676,1370,861],{"class":756},[676,1372,869],{"class":760},[676,1374,1375],{"class":756},"===",[676,1377,770],{"class":756},[676,1379,1380],{"class":685},"production",[676,1382,848],{"class":756},[676,1384,985],{"class":756},[676,1386,1387,1390,1392,1394,1397],{"class":678,"line":884},[676,1388,1389],{"class":829},"  drain",[676,1391,833],{"class":756},[676,1393,1293],{"class":816},[676,1395,1396],{"class":760},"()",[676,1398,985],{"class":756},[676,1400,1401,1403],{"class":678,"line":889},[676,1402,878],{"class":756},[676,1404,881],{"class":760},[1406,1407,1410,1411,1413,1414,1417],"callout",{"color":1408,"icon":1409},"warning","i-lucide-alert-triangle","If ",[549,1412,1261],{}," is enabled without a ",[549,1415,1416],{},"drain",", events may not be visible anywhere. See the configuration docs for details.",[606,1419,1421],{"id":1420},"error-handling","Error handling",[535,1423,1424,1425,1428,1429,1432,1433,1432,1436,1439],{},"Use ",[549,1426,1427],{},"createError"," where you want structured fields (",[549,1430,1431],{},"why",", ",[549,1434,1435],{},"fix",[549,1437,1438],{},"link","). Map failures to your Lambda return or rethrow so SQS retry\u002FDLQ behavior stays correct—evlog does not replace AWS error semantics.",[666,1441,1443],{"className":739,"code":1442,"filename":741,"language":742,"meta":672,"style":672},"import { createError } from 'evlog'\n\nthrow createError({\n  message: 'Invalid payload',\n  status: 400,\n  why: 'Required field missing',\n  fix: 'Include orderId in the message body',\n})\n",[549,1444,1445,1464,1468,1479,1495,1508,1524,1540],{"__ignoreMap":672},[676,1446,1447,1449,1451,1454,1456,1458,1460,1462],{"class":678,"line":679},[676,1448,750],{"class":749},[676,1450,757],{"class":756},[676,1452,1453],{"class":760}," createError",[676,1455,764],{"class":756},[676,1457,767],{"class":749},[676,1459,770],{"class":756},[676,1461,801],{"class":685},[676,1463,776],{"class":756},[676,1465,1466],{"class":678,"line":779},[676,1467,810],{"emptyLinePlaceholder":809},[676,1469,1470,1473,1475,1477],{"class":678,"line":806},[676,1471,1472],{"class":749},"throw",[676,1474,1453],{"class":816},[676,1476,820],{"class":760},[676,1478,823],{"class":756},[676,1480,1481,1484,1486,1488,1491,1493],{"class":678,"line":813},[676,1482,1483],{"class":829},"  message",[676,1485,833],{"class":756},[676,1487,770],{"class":756},[676,1489,1490],{"class":685},"Invalid payload",[676,1492,848],{"class":756},[676,1494,985],{"class":756},[676,1496,1497,1500,1502,1506],{"class":678,"line":826},[676,1498,1499],{"class":829},"  status",[676,1501,833],{"class":756},[676,1503,1505],{"class":1504},"sbssI"," 400",[676,1507,985],{"class":756},[676,1509,1510,1513,1515,1517,1520,1522],{"class":678,"line":875},[676,1511,1512],{"class":829},"  why",[676,1514,833],{"class":756},[676,1516,770],{"class":756},[676,1518,1519],{"class":685},"Required field missing",[676,1521,848],{"class":756},[676,1523,985],{"class":756},[676,1525,1526,1529,1531,1533,1536,1538],{"class":678,"line":884},[676,1527,1528],{"class":829},"  fix",[676,1530,833],{"class":756},[676,1532,770],{"class":756},[676,1534,1535],{"class":685},"Include orderId in the message body",[676,1537,848],{"class":756},[676,1539,985],{"class":756},[676,1541,1542,1544],{"class":678,"line":889},[676,1543,878],{"class":756},[676,1545,881],{"class":760},[606,1547,1549],{"id":1548},"related","Related",[574,1551,1552,1567,1581],{},[577,1553,1554,1557,1558,1560,1561,1560,1563,1566],{},[544,1555,1556],{"href":291},"Standalone TypeScript",": same ",[549,1559,817],{}," + ",[549,1562,612],{},[549,1564,1565],{},"emit()"," model",[577,1568,1569,1571,1572,1432,1574,927,1577,1580],{},[544,1570,504],{"href":505},": ",[549,1573,1261],{},[549,1575,1576],{},"env.region",[549,1578,1579],{},"AWS_REGION","), drains",[577,1582,1583,1585],{},[544,1584,46],{"href":47},": designing one comprehensive event per unit of work",[1587,1588,1589],"style",{},"html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}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 .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 .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 .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 .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 .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":672,"searchDepth":779,"depth":779,"links":1591},[1592,1594,1598,1600,1601],{"id":608,"depth":779,"text":1593},"Why not one global createLogger?",{"id":656,"depth":779,"text":25,"children":1595},[1596,1597],{"id":660,"depth":806,"text":661},{"id":735,"depth":806,"text":736},{"id":1257,"depth":779,"text":1599},"Stdout and silent",{"id":1420,"depth":779,"text":1421},{"id":1548,"depth":779,"text":1549},"Wide events and structured logging in AWS Lambda functions, including SQS consumers and event-driven handlers.","md",null,{},{"title":304,"icon":307},{"title":304,"description":1602},"30OvukBrMw-21msf-Qh_YyPkhKnD-JlFou2fqXS3xYM",[1610,1612],{"title":299,"path":300,"stem":301,"description":1611,"icon":302,"children":-1},"Automatic wide events, structured errors, drain adapters, enrichers, and tail sampling in oRPC applications.",{"title":36,"path":314,"stem":315,"description":1613,"icon":102,"children":-1},"Recipes that solve a specific problem with evlog — capture browser logs, observe AI SDK calls, identify users from Better Auth, build a tamper-evident audit trail, instrument tool telemetry, enrich every event with derived context.",1786003813266]