maintain-project-rules Activation gate Use if: - User asks to audit or maintain project rules, check prefix convention, or sync doc/rules.md. - Context involves , rule files ( ), or conventions from cursor-rules-principles / retro. Source of truth - cursor-rules-principles.md (in repo or /.cursor) – prefix table 000–500, general principles. See reference.md for full prefix table. - commands/retro.md (PROJECT RULES section) – prefixes 000/050/100/200/900, flat .mdc, no subfolders in rules. Procedure 1. Resolve paths - PROJECT ROOT: - PROJECT CURSOR DIR: - PROJECT RULES DIR: - If PROJECT RULES…