db-core

TanStack DB core concepts: createCollection with queryCollectionOptions, electricCollectionOptions, powerSyncCollectionOptions, rxdbCollectionOptions, trailBaseCollectionOptions, localOnlyCollectionOptions. Live queries via query builder (from, where, join, select, groupBy, orderBy, limit). Optimistic mutations with draft proxy (collection.insert, collection.update, collection.delete). createOptimisticAction, createTransaction, createPacedMutations. Entry point for all TanStack DB skills.

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Repository: TanStack/db
Letzte Quellaktivität: 8. Oktober 2026 um 21:10
Erkannte Sprache von SKILL.md: Englisch
Sterne: 3.945
Forks: 276

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Follow https://skillsmp.com/skill-install/prompt.md to install only the Agent Skill at https://github.com/TanStack/db/tree/main/packages/db/skills/db-core.

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npx skills add https://github.com/TanStack/db --skill db-core

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SKILL.md

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name: db-core
description: TanStack DB core concepts: createCollection with queryCollectionOptions, electricCollectionOptions, powerSyncCollectionOptions, rxdbCollectionOptions, trailBaseCollectionOptions, localOnlyCollectionOptions. Live queries via query builder (from, where, join, select, groupBy, orderBy, limit). Optimistic mutations with draft proxy (collection.insert, collection.update, collection.delete). createOptimisticAction, createTransaction, createPacedMutations. Entry point for all TanStack DB skills.
type: core
library: db
library_version: 0.6.17

# TanStack DB — Core Concepts TanStack DB is a reactive client-side data store. It loads data into typed collections from any backend (REST APIs, sync engines, local storage), provides sub-millisecond live queries via differential dataflow, and supports instant optimistic mutations with automatic rollback. Framework packages (`@tanstack/react-db`, `@tanstack/vue-db`, `@tanstack/svelte-db`, `@tanstack/solid-db`) re-export everything from `@tanstack/db` plus framework-specific hooks. In framework projects, import from the framework package directly. `@tanstack/angular-db` is the exception -- import operators from `@tanstack/db` separately. ## Sub-Skills | Need to... | Read | | ------------------------------------------------ | ---------------------------------------------------- | | Create a collection, pick an adapter, add schema | db-core/collection-setup/SKILL.md | | Query data with where, join, groupBy, select | db-core/live-queries/SKILL.md | | Insert, update, delete with optimistic UI | db-core/mutations-optimistic/SKILL.md | | Build a custom sync adapter | db-core/custom-adapter/SKILL.md | | Persist collections to SQLite (offline cache) | db-core/persistence/SKILL.md | | Preload collections in route loaders | meta-framework/SKILL.md | | Add offline transaction queueing | offline/SKILL.md (in @tanstack/offline-transactions) | For framework-specific hooks: | Framework | Read | | --------- | ------------------- | | React | react-db/SKILL.md | | Vue | vue-db/SKILL.md | | Svelte | svelte-db/SKILL.md | | Solid | solid-db/SKILL.md | | Angular | angular-db/SKILL.md | ## Quick Decision Tree - Setting up for the first time? → db-core/collection-setup - Building queries on collection data? → db-core/live-queries - Writing data / handling optimistic state? → db-core/mutations-optimistic - Using React hooks? → react-db - Preloading in route loaders (Start, Next, Remix)? → meta-framework - Building an adapter for a new backend? → db-core/custom-adapter - Persisting collections to SQLite? → db-core/persistence - Need offline transaction persistence? → offline ## Version Targets @tanstack/db v0.6.17.

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angular-db

Angular bindings for TanStack DB. injectLiveQuery inject function with Angular signals (Signal<T>) for all return values. Reactive params pattern ({ params: () => T, query: ({ params, q }) => QueryBuilder }) for dynamic queries. Must be called in injection context. Angular 17+ control flow (@if, @for) and signal inputs supported. Import from @tanstack/angular-db (re-exports all of @tanstack/db).

2026-10-15

offline

Offline transaction support for TanStack DB. OfflineExecutor orchestrates persistent outbox (IndexedDB/localStorage), leader election (WebLocks/ BroadcastChannel), retry with backoff, and connectivity detection. createOfflineTransaction/createOfflineAction wrap TanStack DB primitives with offline persistence. Idempotency keys for at-least-once delivery. Graceful degradation to online-only mode when storage unavailable. React Native support via separate entry point.

2026-10-09

db-core-collection-setup

Creating typed collections with createCollection. Adapter selection: queryCollectionOptions (REST/TanStack Query), electricCollectionOptions (ElectricSQL real-time sync), powerSyncCollectionOptions (PowerSync SQLite), rxdbCollectionOptions (RxDB), trailBaseCollectionOptions (TrailBase), localOnlyCollectionOptions, localStorageCollectionOptions, indexedDBCollectionOptions. CollectionConfig options: getKey, schema, sync, gcTime, autoIndex (default off), defaultIndexType, syncMode (eager/on-demand, plus progressive for Electric). StandardSchema validation with Zod/Valibot/ArkType. Collection lifecycle (idle/loading/ready/error). Adapter-specific sync patterns including Electric txid tracking, Query direct writes, Query initial data and scoped factories, and PowerSync query-driven sync with onLoad/onLoadSubset hooks.

2026-10-08

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db-core

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