# OpenAI Codex CLI & MCP Host (@openai/codex) - AgentBreakWatch Reference

> TL;DR Verdict: OpenAI Codex CLI & MCP Host (`@openai/codex`) is currently at v0.164.0 on NPM (published 2026-10-23), with a 90-day Stability Score of 65/100 (C+) and HIGH schema drift risk across 105 releases in the last 90 days. v0.164.x configures MCP servers in ~/.codex/config.toml under [mcp_servers.<name>] and supports running Codex itself as an MCP server.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/openai-codex-cli
- Category Hub: https://agentbreakwatch.vercel.app/c/mcp-bridges-devtools (MCP Bridges, Transports, Inspectors & Developer Tools)
- Package Name: `@openai/codex`
- Registry: NPM (https://www.npmjs.com/package/@openai/codex)
- GitHub Repository: https://github.com/openai/codex
- Vendor: OpenAI
- Latest Live Version: v0.164.0
- Published Date: 2026-10-23T04:52:29.240Z
- 90-Day Release Count: 105
- Direct Dependencies: 0
- License: Apache-2.0
- Stability Score: 65/100 (Grade C+)
- Schema Drift Risk: HIGH
- Recommended Exact Pin Command: `npx -y @openai/codex@0.164.0`
- Watched Symbols / MCP Tools: codex mcp, mcp_servers
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v0.164.x configures MCP servers in ~/.codex/config.toml under [mcp_servers.<name>] and supports running Codex itself as an MCP server.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
codex --ApprovalMode full-auto "fix tests"
```

## Migration Diff: After (Verified v0.164.0 Pattern)
```
codex --full-auto "fix tests"
```

## Recent Verified Releases
- v0.164.0-win32-x64 (published 2026-10-23) [LATEST]
- v0.164.0-linux-x64 (published 2026-10-23)
- v0.164.0 (published 2026-10-23)
- v0.163.0-win32-x64 (published 2026-10-15)
- v0.163.0 (published 2026-10-15)
- v0.163.0-linux-x64 (published 2026-10-15)