Closes #5. Single authoring skill replaces the factory trio — one set of standards, one script, one place for future governance rules. Routes to create or improve flow based on context. Passes skill-audit with no findings. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016z2ZFYHQCex8yZAMVMTZzZ