ai-code-mode SKILL.md skillA
ai-code-mode from tanstack/ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tanstack/ai/ai-code-mode@git:20261022.f1b3f65Pins git:20261022.f1b3f65 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tanstack/ai
- Path
packages/ai-code-mode/skills/ai-code-mode/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261022.f1b3f65, committed Oct 22, 2026
- First version recorded
- Jun 25, 2026
- Size
- 22,598 bytes
- Repository stars
- 3,337
- License
- MIT
LLM-generated TypeScript execution in sandboxed environments: createCodeModeTool() with isolate drivers (createNodeIsolateDriver, createQuickJSIsolateDriver, createQuickJSBunIsolateDriver, createCloudflareIsolateDriver), codeModeWithSnippets() for persistent snippet libraries, trust strategies, snippet storage (FileSystem, LocalStorage, InMemory, Mongo), client-side execution progress via code_mode:* custom events in useChat.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
> **Note**: This skill requires familiarity with ai-core and ai-core/chat-experience. Code Mode is always used on top of a chat experience.
## Setup
Complete Code Mode setup with Node.js isolate driver:
```typescript
import { chat, toServerSentEventsResponse, toolDefinition } from '@tanstack/ai'
import { openaiText } from '@tanstack/ai-openai'
import { createCodeModeTool } from '@tanstack/ai-code-mode'
import { createNodeIsolateDriver } from '@tanstack/ai-isolate-node'
import { z } from 'zod'
// Define a tool that code can call
const fetchWeather = toolDefinition({
name: 'fetchWeather',
description: 'Get current weather for a city',
inputSchema: z.object({ city: z.string() }),
outputSchema: z.object({ temp: z.number(), condition: z.string() }),
}).server(async ({ city }) => {
const res = await fetch(`https://api.weather.com/${city}`)
return res.json()
})
// Create code mode tool with Node isolate
const codeModeTool = createCodeModeTool({
driver: createNodeIsolateDriver({
memoryLimit: 128,
timeout: 30000,
}),
tools: [fetchWeather],
})
// Use in chat
export async function POST(request: Request) {
const { messages, threadId } = await request.json()
…Read the whole file at its exact version.
How to install
mdr add tanstack/ai/ai-code-mode@sha256:58ade7d249b67bdeThe line at the top of this page pins the label git:20261022.f1b3f65, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jshsplbbcy6rf7ps)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jun 25, 2026 and Oct 22, 2026, about one every 24 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261022.f1b3f65 latest | 2026-10-22 | f1b3f65 | 22,598 B | A | view · diff |
| git:20260909.53e2ec0 | 2026-09-09 | 53e2ec0 | 22,460 B | A | view · diff |
| git:20260815.0fb8263 | 2026-08-15 | 0fb8263 | 19,724 B | A | view · diff |
| git:20260807.b2b82e4 | 2026-08-07 | b2b82e4 | 19,616 B | A | view · diff |
| git:20260804.d9d1e1f | 2026-08-04 | d9d1e1f | 18,538 B | A | view · diff |
| git:20260625.fbd3762 | 2026-06-25 | fbd3762 | 18,539 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (22598 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
tanstack/ai · 3,337 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jshsplbbcy6rf7ps GET https://markdownregistry.com/api/v1/resolve?ref=tanstack/ai/ai-code-mode GET https://markdownregistry.com/api/v1/blob/58ade7d249b67bde6ef34e1d5d3f1feb5b4b2e318891f1b0b9e4c97184d997b0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.