pi-rules

Creates the .pi/rules/ documentation system for a codebase. This skill bootstraps context-optimized documentation for the project, updates specific module's documentation after a refactor, or audits the .pi/rules/ tree for stale or missing entries.

After significant file changes, evaluates whether the corresponding .pi/rules/ file needs updating and applies the update. Skips trivial changes (style fixes, bug fixes, comment edits).