ai-core/chat-experience SKILL.md skillA
ai-core/chat-experience 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-core/chat-experience@git:20261022.fe83aa0Pins git:20261022.fe83aa0 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/skills/ai-core/chat-experience/SKILL.md- Versions recorded
- 13
- Latest version
- git:20261022.fe83aa0, committed Oct 22, 2026
- First version recorded
- Jul 20, 2026
- Size
- 34,517 bytes
- Repository stars
- 3,337
- License
- MIT
End-to-end chat implementation: server endpoint with chat() and toServerSentEventsResponse(), client-side useChat hook with fetchServerSentEvents(), message rendering with UIMessage parts, multimodal content, thinking/reasoning display. Covers streaming states, connection adapters, and message format conversions. NOT Vercel AI SDK — uses chat() not streamText().
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
# Chat Experience
This skill builds on ai-core. Read it first for critical rules.
## Setup — Minimal Chat App
### Server: API Route (TanStack Start)
```typescript ignore
// src/routes/api.chat.ts
import { createFileRoute } from '@tanstack/react-router'
import { chat, toServerSentEventsResponse } from '@tanstack/ai'
import { openaiText } from '@tanstack/ai-openai'
export const Route = createFileRoute('/api/chat')({
server: {
handlers: {
POST: async ({ request }) => {
const abortController = new AbortController()
const body = await request.json()
const { messages } = body
const stream = chat({
adapter: openaiText('gpt-5.5'),
messages,
threadId: body.threadId,
systemPrompts: ['You are a helpful assistant.'],
abortController,
})
return toServerSentEventsResponse(stream, { abortController })
},
},
},
})
```
### Client: React Component
```tsx
// src/routes/index.tsx
import { useState } from 'react'
import { useChat, fetchServerSentEvents } from '@tanstack/ai-react'
import type { UIMessage } from '@tanstack/ai-react'
function ChatPage() {
…Read the whole file at its exact version.
How to install
mdr add tanstack/ai/ai-core/chat-experience@sha256:63c696d25e837919The line at the top of this page pins the label git:20261022.fe83aa0, 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_n37lyr4lp2znx7om)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 13 versions of this file, between Jul 20, 2026 and Oct 22, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261022.fe83aa0 latest | 2026-10-22 | fe83aa0 | 34,517 B | A | view · diff |
| git:20261022.f1b3f65 | 2026-10-22 | f1b3f65 | 34,421 B | A | view · diff |
| git:20261013.a0150c2 | 2026-10-13 | a0150c2 | 33,412 B | A | view · diff |
| git:20261013.fac0555 | 2026-10-13 | fac0555 | 33,115 B | A | view · diff |
| git:20261012.7532b2b | 2026-10-12 | 7532b2b | 33,044 B | A | view · diff |
| git:20261008.f687c54 | 2026-10-08 | f687c54 | 33,125 B | A | view · diff |
| git:20260927.0eb8f0b | 2026-09-27 | 0eb8f0b | 33,089 B | A | view · diff |
| git:20260924.ef0a00f | 2026-09-24 | ef0a00f | 29,248 B | A | view · diff |
| git:20260909.53e2ec0 | 2026-09-09 | 53e2ec0 | 28,360 B | A | view · diff |
| git:20260824.a955710 | 2026-08-24 | a955710 | 24,705 B | A | view · diff |
| git:20260804.d9d1e1f | 2026-08-04 | d9d1e1f | 24,718 B | A | view · diff |
| git:20260727.4ab149f | 2026-07-27 | 4ab149f | 24,718 B | A | view · diff |
| git:20260720.7c7aa09 | 2026-07-20 | 7c7aa09 | 21,137 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 (34517 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_n37lyr4lp2znx7om GET https://markdownregistry.com/api/v1/resolve?ref=tanstack/ai/ai-core/chat-experience GET https://markdownregistry.com/api/v1/blob/63c696d25e8379193f75866eebc5b57df3c7544b134fe0c7c539590743ae8c4a
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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.