It’s easy to end up with bunch of old stuff in AGENTS.md that latest models no longer need and what might just confuse them. See for example the story about Anthropic cutting 80% of their system prompt [1].
Maybe they feel just using the AGENTS.md written for another model and possibly different era gives bad user experience.
Maybe they feel just using the AGENTS.md written for another model and possibly different era gives bad user experience.
[1] https://claude.com/blog/the-new-rules-of-context-engineering...