Anthropic Refuses to Support AGENTS.md

Anthropic Refuses to Support AGENTS.md

A GitHub issue asks Anthropic to add support for AGENTS.md, an emerging open standard for coding agent instructions used by over 20,000 projects. The proposal suggests a dual-file approach where CLAUDE.md takes precedence, with AGENTS.md as a fallback. The issue has gained significant traction, with over 4,500 upvotes and numerous comments, but Anthropic closed it without implementing the feature.

The naming, "agents.md" a bit confusing given subagents are defined as "agents."

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2026-08-19