tanstack/ai · packages/ai-sandbox/skills/ai-sandbox/SKILL.md

ai-sandbox skillA

ai-sandbox is agent-read markdown (skill) from tanstack/ai: Run harness adapters (Claude Code, Codex, OpenCode) INSIDE isolated sandboxes via defineSandbox + withSandbox + a provider (localProcessSandbox / dockerSandbox). Covers declarative provisioning: createSecrets + secret/bearer, skills (agentSkill/gitSkill/mcpSkill/ fileSkill), plugins, instructions → canonical AGENTS.md + symlinks projected per harness; shallow-clone default with depth opt-out; serial/parallel setup callback over a persistent shell; snapshot-after-setup default with snapshotMaxAge.

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-sandbox@git:20260909.53e2ec0
Exact content
mdr add tanstack/ai/ai-sandbox@sha256:008fe0db75ea7ee5

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_fwndbg6i6n64ywap.svg)](https://markdownregistry.com/a/art_fwndbg6i6n64ywap)

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Versions

versioncommittedcommitsizeaudit
git:20260909.53e2ec0 latest2026-09-09 53e2ec0 54,500 BA view · diff
git:20260820.9b5f8412026-08-20 9b5f841 51,658 BA view · diff
git:20260812.d5bdc362026-08-12 d5bdc36 46,853 BA view · diff
git:20260804.d9d1e1f2026-08-04 d9d1e1f 46,298 BA view · diff
git:20260731.1cb04d52026-07-31 1cb04d5 15,686 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 (54500 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 · 3,097 stars · license MIT · pushed 2026-09-11 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_fwndbg6i6n64ywap
GET https://markdownregistry.com/api/v1/resolve?ref=tanstack/ai/ai-sandbox
GET https://markdownregistry.com/api/v1/blob/008fe0db75ea7ee5f11d2cd876309ef1358d62b1d16548d4dc928725f2ca3830