Your AGENTS.md Is Either a Model Upgrade or a Liability

A good AGENTS.md is a model upgrade. A bad one is worse than no docs at all.

We pulled dozens of AGENTS.md files from across our monorepo and measured their effect on code generation. The best ones gave our coding agent a quality jump equivalent to upgrading from Haiku to Opus. The worst ones made the output worse than having no AGENTS.md at all.

Full article: https://x.com/augmentcode/status/2047164534310494709