tanstack/ai · packages/ai/skills/ai-core/locks/SKILL.md

ai-core/locks skillA

ai-core/locks is agent-read markdown (skill) from tanstack/ai: LockStore, InMemoryLockStore, LocksCapability and withLocks for multi-instance coordination in TanStack AI. Ships in @tanstack/ai — NOT in @tanstack/ai-persistence. Separate from AIPersistence state stores — not a stores key, not composable. InMemoryLockStore vs a distributed (e.g. Cloudflare Durable Object) lock, lease recovery, AbortSignal in critical sections. Use when sandbox or other middleware needs cross-worker mutual exclusion — NOT for storing messages/runs (use withPersistence)..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add tanstack/ai/ai-core/locks@git:20260909.53e2ec0
Exact content
mdr add tanstack/ai/ai-core/locks@sha256:36284387bd20595f

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6ofvjtxctuqsmfhn.svg)](https://markdownregistry.com/a/art_6ofvjtxctuqsmfhn)

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Versions

versioncommittedcommitsizeaudit
git:20260909.53e2ec0 latest2026-09-09 53e2ec0 5,507 BA view · diff
git:20260804.d9d1e1f2026-08-04 d9d1e1f 4,807 BA view · diff
git:20260727.4ab149f2026-07-27 4ab149f 4,807 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5507 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

tanstack/ai · 3,099 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6ofvjtxctuqsmfhn
GET https://markdownregistry.com/api/v1/resolve?ref=tanstack/ai/ai-core/locks
GET https://markdownregistry.com/api/v1/blob/36284387bd20595f3aebf7a90a0f68775b8d7f10848e6920f09e06a268162dcd