LaunchDevelopersSeptember 18, 2026

Claude Code 2.1.277 adds AGENTS.md support

Read original source →code.claude.com

Claude Code now reads AGENTS.md in projects with no CLAUDE.md, configurable under "Project instructions" in /config, though not yet on Bedrock, Vertex or Foundry. The release also adds CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY=1 for proxy-only gateways and fixes claude -p and Agent SDK sessions hanging after internal errors.

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