How do I install the Tanstack Query Foundation skill?

Run npx skillmds@latest add ryan-brosas/tanstack-query-foundation in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Tanstack Query Foundation safe to use?

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Which AI agents work with Tanstack Query Foundation?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Tanstack Query Foundation free to use?

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Who published Tanstack Query Foundation?

ryan-brosas (@ryan-brosas) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Tanstack Query Foundation by ryan-brosas

Name: Tanstack Query Foundation
Author: ryan-brosas

Tanstack Query Foundation

Use when porting @tanstack/query-core v5's async-state cache kernel — pause/resume retryer machine, fetch dedup/revert ladder, dispatch reducers, canonical-JSON key hashing, structural sharing, transaction-batched notifications, GC refcounting, lazy environment listeners, observer select/placeholder memoization, tracked-prop notification gate, mutation callback ledger, scoped mutation serialization, directional infinite paging, newer-wins hydration with pending promises, streamed query refetch modes, and the render-phase optimistic binding contract.

ryan-brosas 75d0d1b 24 files · 87.8 KB Updated Sep 17, 2026

File contents

TanStack Query: async-state cache kernel foundation

Foundation contract

This is a cold, source-specific foundation, not an operational procedure. It is historical, revision-pinned evidence rather than timeless guidance. Current project source, tests, requirements, and runtime behavior outrank this projection and decide what ships.

Provenance and revision

Source record: tanstack-query; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.
Recorded revision: main@bc423b37ef7fa2a34cfc7286945fd640d74b4071.
Full provenance, coverage caveats, boundaries, and preserved evidence: references/index.md.

Topic map

Representative topics: Fetch retry kernel; Fetch dedup ladder; Query reducer; Optimistic fetchState; Cache hashing; Key prefix matching; Structural sharing; Sharing policy gate.
Scope and retrieval questions: references/index.md#use-this-for.
Complete capsule chooser: references/index.md#load-the-matching-source-dump.
Detailed grouped map: references/index.md#capsule-map.
Source limitations and portability boundaries: references/index.md#boundaries.

Retrieval

Open the index, choose one capsule matching the active question, and load only that capsule. Revalidate its cited source and revision before relying on it. Do not bulk-load the inventory, treat historical claims as current truth, or apply this foundation as a procedure.

---name: tanstack-query-foundationdescription: Use when porting @tanstack/query-core v5's async-state cache kernel — pause/resume retryer machine, fetch dedup/revert ladder, dispatch reducers, canonical-JSON key hashing, structural sharing, transaction-batched notifications, GC refcounting, lazy environment listeners, observer select/placeholder memoization, tracked-prop notification gate, mutation callback ledger, scoped mutation serialization, directional infinite paging, newer-wins hydration with pending promises, streamed query refetch modes, and the render-phase optimistic binding contract.---# TanStack Query: async-state cache kernel foundation## Foundation contractThis is a cold, source-specific foundation, not an operational procedure. It ishistorical, revision-pinned evidence rather than timeless guidance. Currentproject source, tests, requirements, and runtime behavior outrank thisprojection and decide what ships.## Provenance and revision- Source record: `tanstack-query`; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.- Recorded revision: `main@bc423b37ef7fa2a34cfc7286945fd640d74b4071`.- Full provenance, coverage caveats, boundaries, and preserved evidence: `references/index.md`.## Topic map- Representative topics: Fetch retry kernel; Fetch dedup ladder; Query reducer; Optimistic fetchState; Cache hashing; Key prefix matching; Structural sharing; Sharing policy gate.- Scope and retrieval questions: `references/index.md#use-this-for`.- Complete capsule chooser: `references/index.md#load-the-matching-source-dump`.- Detailed grouped map: `references/index.md#capsule-map`.- Source limitations and portability boundaries: `references/index.md#boundaries`.## RetrievalOpen the index, choose one capsule matching the active question, and load onlythat capsule. Revalidate its cited source and revision before relying on it. Donot bulk-load the inventory, treat historical claims as current truth, or applythis foundation as a procedure.

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