Create, review, rewrite, or enforce a high-quality AGENTS.md (the open “README for coding agents” format). Use when the user invokes $agents-md, says AGENTS.md, agents.md, agent instructions, project agent context, nest AGENTS.md, or asks to scaffold, audit, improve, or standardize repository guidance for AI coding agents. Always include the ASD-STE100 Communication block in new or existing root AGENTS.md files.