AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
AGENTS.md is an emerging cross-vendor standard replacing per-tool files like .cursorrules or CLAUDE.md with one root-level file any coding AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → can read for build, test, style, and security instructions.
