# Cohere TypeScript SDK (cohere-ai) - AgentBreakWatch Reference

> TL;DR Verdict: Cohere TypeScript SDK (`cohere-ai`) is currently at v8.3.0 on NPM (published 2026-10-21), with a 90-day Stability Score of 86/100 (B+) and MEDIUM schema drift risk across 4 releases in the last 90 days. v8.x defaults to Cohere Chat v2 endpoint (CohereClientV2) with OpenAI-style messages and strict tool parameter schemas.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/cohere-ai-js
- Category Hub: https://agentbreakwatch.vercel.app/c/agent-sdks (AI Agent SDKs & Frameworks Breaking-Change Index)
- Package Name: `cohere-ai`
- Registry: NPM (https://www.npmjs.com/package/cohere-ai)
- GitHub Repository: https://github.com/cohere-ai/cohere-typescript
- Vendor: Cohere
- Latest Live Version: v8.3.0
- Published Date: 2026-10-21T14:20:24.462Z
- 90-Day Release Count: 4
- Direct Dependencies: 4
- License: MIT
- Stability Score: 86/100 (Grade B+)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `npm install cohere-ai@8.3.0`
- Watched Symbols / MCP Tools: CohereClientV2, cohere.chat
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v8.x defaults to Cohere Chat v2 endpoint (CohereClientV2) with OpenAI-style messages and strict tool parameter schemas.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
const cohere = new CohereClient({ token });
await cohere.chat({ message: "hi", connectors: [{ id: "web-search" }] });
```

## Migration Diff: After (Verified v8.3.0 Pattern)
```
const cohere = new CohereClientV2({ token });
await cohere.chat({ model: "command-a-03-2025", messages: [{ role: "user", content: "hi" }] });
```

## Recent Verified Releases
- v8.3.0 (published 2026-10-21) [LATEST]
- v8.2.0 (published 2026-10-19)
- v8.1.0 (published 2026-08-26)
- v8.0.1 (published 2026-08-18)
- v8.0.0 (published 2026-04-01)
- v7.21.0 (published 2026-03-27)