[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-tanstack-ai-coredebug-logging":3,"mdc-745xti-key":53,"related-repo-tanstack-ai-coredebug-logging":3717,"related-org-tanstack-ai-coredebug-logging":3821},{"slug":4,"name":5,"fn":6,"description":7,"org":8,"tags":12,"stars":24,"repoUrl":25,"updatedAt":26,"license":27,"forks":28,"topics":29,"repo":48,"sourceUrl":51,"mdContent":52},"ai-coredebug-logging","ai-core\u002Fdebug-logging","configure debug logging for TanStack AI","Pluggable, category-toggleable debug logging for TanStack AI activities. Toggle with `debug: true | false | DebugConfig` on chat(), summarize(), generateImage(), generateSpeech(), generateTranscription(), generateVideo(). Categories: request, provider, output, middleware, tools, agentLoop, config, errors. Pipe into pino\u002Fwinston\u002Fetc via `debug: { logger }`. Errors log by default even when `debug` is omitted; silence with `debug: false`.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},"tanstack","TanStack","https:\u002F\u002Fpexgzepcugksgbtrxkhf.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Forg-logos\u002Ftanstack.png",[13,17,20,21],{"name":14,"slug":15,"type":16},"Observability","observability","tag",{"name":18,"slug":19,"type":16},"LLM","llm",{"name":10,"slug":9,"type":16},{"name":22,"slug":23,"type":16},"Debugging","debugging",2884,"https:\u002F\u002Fgithub.com\u002FTanStack\u002Fai","2026-07-16T06:04:12.257598",null,269,[30,31,32,33,34,35,36,37,19,38,39,40,41,42,43,9,44,45,46,47],"ai","ai-agents","ai-sdk","anthropic","chatbot","function-calling","gemini","generative-ai","multimodal","openai","react","solidjs","streaming","svelte","tool-calling","typescript","typescript-sdk","vue",{"repoUrl":25,"stars":24,"forks":28,"topics":49,"description":50},[30,31,32,33,34,35,36,37,19,38,39,40,41,42,43,9,44,45,46,47],"šŸ¤– Type-safe, provider-agnostic TypeScript AI SDK for streaming chat, tool calling, agents, and multimodal apps across OpenAI, Anthropic, Gemini, React, Vue, Svelte, and Solid.","https:\u002F\u002Fgithub.com\u002FTanStack\u002Fai\u002Ftree\u002FHEAD\u002Fpackages\u002Fai\u002Fskills\u002Fai-core\u002Fdebug-logging","---\nname: ai-core\u002Fdebug-logging\ndescription: >\n Pluggable, category-toggleable debug logging for TanStack AI activities.\n Toggle with `debug: true | false | DebugConfig` on chat(), summarize(),\n generateImage(), generateSpeech(), generateTranscription(), generateVideo().\n Categories: request, provider, output, middleware, tools, agentLoop,\n config, errors. Pipe into pino\u002Fwinston\u002Fetc via `debug: { logger }`. Errors\n log by default even when `debug` is omitted; silence with `debug: false`.\ntype: sub-skill\nlibrary: tanstack-ai\nlibrary_version: '0.10.0'\nsources:\n - 'TanStack\u002Fai:docs\u002Fadvanced\u002Fdebug-logging.md'\n---\n\n# Debug Logging\n\n> **Dependency note:** This skill builds on ai-core. Read it first for critical rules.\n\nUse this skill when you need to turn debug logging on or off, narrow what's\nprinted, or pipe logs into a custom logger (pino, winston, etc.). The same\n`debug` option works on every activity ā€” `chat()`, `summarize()`,\n`generateImage()`, `generateSpeech()`, `generateTranscription()`,\n`generateVideo()`.\n\n## Turn it on\n\n```typescript\nimport { chat } from '@tanstack\u002Fai'\nimport { openaiText } from '@tanstack\u002Fai-openai'\n\nconst stream = chat({\n adapter: openaiText('gpt-5.2'),\n messages,\n debug: true, \u002F\u002F all categories on, prints to console\n})\n```\n\nEach log line is prefixed with an emoji and `[tanstack-ai:\u003Ccategory>]`:\n\n```\nšŸ“¤ [tanstack-ai:request] šŸ“¤ activity=chat provider=openai model=gpt-5.2 messages=1 tools=0 stream=true\nšŸ” [tanstack-ai:agentLoop] šŸ” run started\nšŸ“„ [tanstack-ai:provider] šŸ“„ provider=openai type=response.output_text.delta\nšŸ“Ø [tanstack-ai:output] šŸ“Ø type=TEXT_MESSAGE_CONTENT\n```\n\n## Turn it off\n\n```typescript\nchat({\n adapter: openaiText('gpt-5.2'),\n messages,\n debug: false, \u002F\u002F silence everything, including errors\n})\n```\n\nOmitting `debug` is **not** the same as `debug: false`. When omitted, the\n`errors` category is still on (errors are cheap and important). Use\n`debug: false` or `debug: { errors: false }` for true silence.\n\n## `DebugOption` ā€” the accepted shapes\n\n```typescript\ntype DebugOption = boolean | DebugConfig\n\ninterface DebugConfig {\n \u002F\u002F Per-category flags. Any flag omitted from a DebugConfig defaults to true.\n request?: boolean\n provider?: boolean\n output?: boolean\n middleware?: boolean\n tools?: boolean\n agentLoop?: boolean\n config?: boolean\n errors?: boolean\n \u002F\u002F Optional custom logger. Defaults to ConsoleLogger.\n logger?: Logger\n}\n```\n\nResolution rules for the `debug?: DebugOption` field on every activity:\n\n| `debug` value | Effect |\n| --------------------- | ---------------------------------------------------------------------------- |\n| omitted (`undefined`) | Only `errors` is active; default `ConsoleLogger`. |\n| `true` | All categories on; default `ConsoleLogger`. |\n| `false` | All categories off (including `errors`); default `ConsoleLogger`. |\n| `DebugConfig` object | Each unspecified flag defaults to `true`; `logger` replaces `ConsoleLogger`. |\n\n## Narrow what's printed\n\nPass a `DebugConfig` object. Unspecified categories default to `true`, so it's\neasiest to toggle by setting specific flags to `false`:\n\n```typescript\nchat({\n adapter: openaiText('gpt-5.2'),\n messages,\n debug: { middleware: false }, \u002F\u002F everything except middleware\n})\n```\n\nTo print only a specific set, set the rest to `false` explicitly:\n\n```typescript\nchat({\n adapter: openaiText('gpt-5.2'),\n messages,\n debug: {\n provider: true,\n output: true,\n middleware: false,\n tools: false,\n agentLoop: false,\n config: false,\n errors: true, \u002F\u002F keep errors on ā€” they're cheap and important\n request: false,\n },\n})\n```\n\n## Pipe into your own logger\n\n```typescript\nimport type { Logger } from '@tanstack\u002Fai'\nimport pino from 'pino'\n\nconst pinoLogger = pino()\nconst logger: Logger = {\n debug: (msg, meta) => pinoLogger.debug(meta, msg),\n info: (msg, meta) => pinoLogger.info(meta, msg),\n warn: (msg, meta) => pinoLogger.warn(meta, msg),\n error: (msg, meta) => pinoLogger.error(meta, msg),\n}\n\nchat({\n adapter: openaiText('gpt-5.2'),\n messages,\n debug: { logger }, \u002F\u002F all categories on, piped to pino\n})\n```\n\nThe default console logger is exported as `ConsoleLogger` if you want to wrap\nit:\n\n```typescript\nimport { ConsoleLogger } from '@tanstack\u002Fai'\n```\n\n## Categories\n\n| Category | Logs | Applies to |\n| ------------ | -------------------------------------------------------------- | ------------------------------------- |\n| `request` | Outgoing call to a provider (model, message count, tool count) | All activities |\n| `provider` | Every raw chunk\u002Fframe received from a provider SDK | Streaming activities (chat, realtime) |\n| `output` | Every chunk or result yielded to the caller | All activities |\n| `middleware` | Inputs and outputs around every middleware hook | `chat()` only |\n| `tools` | Before\u002Fafter tool call execution | `chat()` only |\n| `agentLoop` | Agent-loop iterations and phase transitions | `chat()` only |\n| `config` | Config transforms returned by middleware `onConfig` hooks | `chat()` only |\n| `errors` | Every caught error anywhere in the pipeline | All activities |\n\nChat-only categories simply never fire for non-chat activities ā€” those\nconcepts don't exist in their pipelines.\n\n## Non-chat activities\n\nSame `debug` option everywhere:\n\n```typescript\nsummarize({ adapter, text, debug: true })\ngenerateImage({ adapter, prompt: 'a cat', debug: { logger } })\ngenerateSpeech({ adapter, text, debug: { request: true } })\ngenerateTranscription({ adapter, audio, debug: false })\ngenerateVideo({ adapter, prompt: 'a wave', debug: { output: true } })\n```\n\nRealtime session adapters in provider packages (e.g. `openaiRealtime`,\n`elevenlabsRealtime`) accept the same `debug?: DebugOption` on their session\noptions. They emit `request`, `provider`, and `errors` lines; the chat-only\ncategories don't apply.\n\n## Common Mistakes\n\n### a. HIGH: Treating omitted `debug` as silent\n\n```typescript\n\u002F\u002F WRONG ā€” expecting this to be completely silent\nchat({ adapter, messages })\n\u002F\u002F Errors still print via [tanstack-ai:errors] ... on failure.\n\n\u002F\u002F CORRECT ā€” explicit silence\nchat({ adapter, messages, debug: false })\nchat({ adapter, messages, debug: { errors: false } })\n```\n\n`debug` undefined means \"only errors\"; `debug: false` means \"nothing at all\".\n\nSource: docs\u002Fadvanced\u002Fdebug-logging.md\n\n### b. MEDIUM: Reaching for middleware when `debug` would do\n\n```typescript\n\u002F\u002F WRONG ā€” writing logging middleware to see chunks flow\nconst chunkLogger: ChatMiddleware = {\n name: 'chunk-logger',\n onChunk: (ctx, chunk) => {\n console.log(chunk.type, chunk)\n },\n}\nchat({ adapter, messages, middleware: [chunkLogger] })\n\n\u002F\u002F CORRECT ā€” just turn on the relevant categories\nchat({\n adapter,\n messages,\n debug: { provider: true, output: true },\n})\n```\n\nFor observing the built-in pipeline, the `debug` option is strictly faster\nthan writing logging middleware. Reach for middleware when you need to\n_transform_ chunks, not just see them.\n\nSource: docs\u002Fadvanced\u002Fdebug-logging.md\n\n### c. LOW: Logger implementation that can throw\n\nA user-supplied `Logger` that throws will have its exception swallowed by the\nSDK so it never masks the real error that triggered the log call. Still,\nprefer implementations that don't throw ā€” silenced exceptions are harder to\ndebug than loud ones.\n\n```typescript\n\u002F\u002F WRONG ā€” a logger that can throw on serialization\nconst fragile: Logger = {\n debug: (msg, meta) => console.debug(msg, JSON.stringify(meta)), \u002F\u002F cyclic meta ā†’ throws\n \u002F* ... *\u002F\n}\n\n\u002F\u002F CORRECT ā€” guard serialization in the logger itself\nconst safe: Logger = {\n debug: (msg, meta) => {\n try {\n console.debug(msg, meta)\n } catch {\n console.debug(msg)\n }\n },\n \u002F* ... *\u002F\n}\n```\n\nSource: packages\u002Fai\u002Fsrc\u002Flogger\u002Finternal-logger.ts\n\n## Cross-References\n\n- See also: **ai-core\u002Fmiddleware\u002FSKILL.md** ā€” if you need to transform\n chunks\u002Fconfig, not just observe them.\n- See also: **Observability** (`docs\u002Fadvanced\u002Fobservability.md`) ā€” the\n programmatic event client for a richer, structured feed beyond log lines.\n",{"data":54,"body":60},{"name":5,"description":7,"type":55,"library":56,"library_version":57,"sources":58},"sub-skill","tanstack-ai","0.10.0",[59],"TanStack\u002Fai:docs\u002Fadvanced\u002Fdebug-logging.md",{"type":61,"children":62},"root",[63,72,88,147,154,400,412,422,428,537,587,599,843,856,1016,1022,1047,1168,1180,1451,1457,1983,1995,2038,2044,2269,2274,2280,2292,2641,2688,2694,2708,2902,2919,2924,2937,3276,3296,3300,3306,3319,3666,3671,3677,3711],{"type":64,"tag":65,"props":66,"children":68},"element","h1",{"id":67},"debug-logging",[69],{"type":70,"value":71},"text","Debug Logging",{"type":64,"tag":73,"props":74,"children":75},"blockquote",{},[76],{"type":64,"tag":77,"props":78,"children":79},"p",{},[80,86],{"type":64,"tag":81,"props":82,"children":83},"strong",{},[84],{"type":70,"value":85},"Dependency note:",{"type":70,"value":87}," This skill builds on ai-core. 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NOT Vercel AI SDK ā€” uses chat() not streamText().\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3785,3786,3789,3790],{"name":3773,"slug":3774,"type":16},{"name":3787,"slug":3788,"type":16},"Frontend","frontend",{"name":18,"slug":19,"type":16},{"name":10,"slug":9,"type":16},"2026-07-30T05:26:11.505241",{"slug":3793,"name":3794,"fn":3795,"description":3796,"org":3797,"tags":3798,"stars":24,"repoUrl":25,"updatedAt":3805},"ai-coreclient-persistence","ai-core\u002Fclient-persistence","implement browser chat persistence for TanStack AI","Browser chat persistence on useChat \u002F ChatClient: localStoragePersistence, sessionStoragePersistence, indexedDBPersistence. Client-authoritative (adapter, full transcript) vs server-authoritative (persistence: true, no client cache). Reload restore, pending interrupts, mid-stream rejoin with delivery durability. Use for SPA reload durability ā€” NOT server history alone. No extra package: the adapters ship in the framework packages.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3799,3800,3801,3804],{"name":3747,"slug":30,"type":16},{"name":3787,"slug":3788,"type":16},{"name":3802,"slug":3803,"type":16},"Persistence","persistence",{"name":10,"slug":9,"type":16},"2026-07-30T05:53:35.503176",{"slug":3807,"name":3808,"fn":3809,"description":3810,"org":3811,"tags":3812,"stars":24,"repoUrl":25,"updatedAt":3819},"ai-corecustom-backend-integration","ai-core\u002Fcustom-backend-integration","integrate custom backends with TanStack AI","Connect useChat to a non-TanStack-AI backend through custom connection adapters. ConnectConnectionAdapter (single async iterable) vs SubscribeConnectionAdapter (separate subscribe\u002Fsend). Customize fetchServerSentEvents() and fetchHttpStream() with auth headers, custom URLs, and request options. Import from framework package, not @tanstack\u002Fai-client.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3813,3814,3815,3818],{"name":3747,"slug":30,"type":16},{"name":3773,"slug":3774,"type":16},{"name":3816,"slug":3817,"type":16},"Backend","backend",{"name":10,"slug":9,"type":16},"2026-07-17T06:06:39.855351",27,{"items":3822,"total":3960},[3823,3837,3847,3859,3874,3886,3896,3906,3919,3929,3940,3950],{"slug":3824,"name":3824,"fn":3825,"description":3826,"org":3827,"tags":3828,"stars":3834,"repoUrl":3835,"updatedAt":3836},"aggregation","perform data aggregation in TanStack Table","Aggregate TanStack Table columns independently of grouping, including grand totals, caller-selected row totals, multiple keyed aggregations, custom context-based definitions, grouped merges, manual values, and worker constraints.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3829,3832,3833],{"name":3830,"slug":3831,"type":16},"Data Analysis","data-analysis",{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},28175,"https:\u002F\u002Fgithub.com\u002FTanStack\u002Ftable","2026-07-30T05:25:59.429787",{"slug":3838,"name":3838,"fn":3839,"description":3840,"org":3841,"tags":3842,"stars":3834,"repoUrl":3835,"updatedAt":3846},"api-not-found","diagnose TanStack Table API errors","Diagnose missing TanStack Table v9 exports, options, state slices, and instance methods. Load before inventing an API when code sees a type error, undefined feature method, absent object key, adapter mismatch, or v8-shaped example.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3843,3844,3845],{"name":22,"slug":23,"type":16},{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},"2026-07-30T05:26:05.418735",{"slug":3848,"name":3848,"fn":3849,"description":3850,"org":3851,"tags":3852,"stars":3834,"repoUrl":3835,"updatedAt":3858},"cell-selection","select rectangular cell ranges in tables","Select rectangular cell ranges with cellSelectionFeature: two-corner range state keyed by row and column id, mousedown\u002Fmouseenter handlers, selection edges, render-order resolution under pinning, and autoResetCellSelection. Load when ranges widen unexpectedly after sorting or column reordering, when a drag re-renders the whole table, or when building copy-to-clipboard from a selection.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3853,3854,3855],{"name":3830,"slug":3831,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"UI Components","ui-components","2026-07-30T05:25:38.403427",{"slug":3860,"name":3860,"fn":3861,"description":3862,"org":3863,"tags":3864,"stars":3834,"repoUrl":3835,"updatedAt":3873},"client-vs-server","manage TanStack Table data pipelines","Choose client or server ownership for filtering, grouping, sorting, expanding, and pagination in TanStack Table v9. Load for manual* flags, mixed pipelines, server counts, or deciding which dataset each row-model stage receives.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3865,3868,3869,3872],{"name":3866,"slug":3867,"type":16},"Data Pipeline","data-pipeline",{"name":3787,"slug":3788,"type":16},{"name":3870,"slug":3871,"type":16},"Performance","performance",{"name":10,"slug":9,"type":16},"2026-07-30T05:25:45.400104",{"slug":3875,"name":3875,"fn":3876,"description":3877,"org":3878,"tags":3879,"stars":3834,"repoUrl":3835,"updatedAt":3885},"column-faceting","build faceted filter UIs","Build faceted filter UIs with columnFacetingFeature, facetedRowModel, facetedUniqueValues, and facetedMinMaxValues. Load for facet counts, numeric ranges, own-filter exclusion, or server-page facet completeness.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3880,3883,3884],{"name":3881,"slug":3882,"type":16},"Data Visualization","data-visualization",{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},"2026-07-30T05:25:41.397257",{"slug":3887,"name":3887,"fn":3888,"description":3889,"org":3890,"tags":3891,"stars":3834,"repoUrl":3835,"updatedAt":3895},"column-filtering","implement column filtering in TanStack Table","Filter columns with columnFilteringFeature, filteredRowModel, filterFns, filterMeta, nested-row direction, and manualFiltering. Load for accessor compatibility, controlled filter updaters, fuzzy metadata, or client\u002Fserver ownership.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3892,3893,3894],{"name":3830,"slug":3831,"type":16},{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},"2026-07-30T05:25:53.391632",{"slug":3897,"name":3897,"fn":3898,"description":3899,"org":3900,"tags":3901,"stars":3834,"repoUrl":3835,"updatedAt":3905},"column-ordering","manage TanStack Table column ordering","Control TanStack Table v9 leaf columnOrder with stable IDs while accounting for pinning regions, visibility, and groupedColumnMode precedence. Load for drag-and-drop columns or rendered order that differs from state.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3902,3903,3904],{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:26:03.37801",{"slug":3907,"name":3907,"fn":3908,"description":3909,"org":3910,"tags":3911,"stars":3834,"repoUrl":3835,"updatedAt":3918},"column-pinning","configure column pinning in TanStack Table","Pin columns into logical start, center, and end regions with columnPinningFeature and renderer-owned sticky CSS. Load for RTL offsets, z-index, backgrounds, overflow, widths, gaps, or overlaps.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3912,3915,3916,3917],{"name":3913,"slug":3914,"type":16},"CSS","css",{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:25:55.377366",{"slug":3920,"name":3920,"fn":3921,"description":3922,"org":3923,"tags":3924,"stars":3834,"repoUrl":3835,"updatedAt":3928},"column-resizing","implement column resizing in TanStack Table","Wire columnResizingFeature, header.getResizeHandler, resize mode and direction, pointer or touch events, and performant CSS-variable updates. Load when resize state changes but widths do not, or large tables resize slowly.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3925,3926,3927],{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:25:51.400011",{"slug":3930,"name":3930,"fn":3931,"description":3932,"org":3933,"tags":3934,"stars":3834,"repoUrl":3835,"updatedAt":3939},"column-sizing","configure column sizing in TanStack Table","Use columnSizingFeature numeric size, minSize, maxSize, getSize, getStart, getAfter, and total-size APIs in table, grid, or flex CSS. Load for auto or percentage misconceptions and sizing\u002Fpinning layout mismatch.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3935,3936,3937,3938],{"name":3913,"slug":3914,"type":16},{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:25:48.703799",{"slug":3941,"name":3941,"fn":3942,"description":3943,"org":3944,"tags":3945,"stars":3834,"repoUrl":3835,"updatedAt":3949},"column-visibility","manage column visibility in TanStack Table","Hide columns with columnVisibilityFeature while rendering visibility-aware header, column, and cell collections. Load when hidden columns remain in the DOM, false-versus-absent state is confused, or enableHiding is misunderstood.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3946,3947,3948],{"name":3787,"slug":3788,"type":16},{"name":10,"slug":9,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:25:47.367943",{"slug":3951,"name":3951,"fn":3952,"description":3953,"org":3954,"tags":3955,"stars":3834,"repoUrl":3835,"updatedAt":3959},"core","build data grids with TanStack Table","Use TanStack Table v9 as a headless data-grid state and row-processing engine. Load for first-table architecture, stable data and columns, row numbering with getDisplayIndex, semantic rendering, framework adapter choice, or deciding what Table owns versus the renderer.\n",{"slug":9,"name":10,"logoUrl":11,"githubOrg":10},[3956,3957,3958],{"name":3830,"slug":3831,"type":16},{"name":3787,"slug":3788,"type":16},{"name":3856,"slug":3857,"type":16},"2026-07-30T05:25:52.366295",125]