Claude Code 2.1.277 adds AGENTS.md support when no CLAUDE.md exists

petergyang · x · 2026-09-19

Claude Code version 2.1.277 now supports AGENTS.md: in folders without a CLAUDE.md, Claude will check for and use AGENTS.md as project instructions. The behavior can be toggled in /config, signaling broader adoption of the cross-tool AGENTS.md standard by Anthropic's CLI.

Related event: Claude Code v2.1.277 Adds Native Support for the AGENTS.md Standard(18 posts)→

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