What problem does it solve? Work packages often end without capturing what was learned, so each new package repeats the same mistakes and rediscovers the same solutions. This Skill runs Phase 12 STANDARDIZE of the THYROX workflow, converting lessons learned into documented reusable patterns and formally closing the work package. ## Core Features & Use Cases - Pattern extraction: Reviews Phase 11 lessons-learned artifacts and converts them into named, structured patterns using the patterns.md template. - System propagation: Updates project guidelines, other workflow skills, and ADRs so improvements persist beyond the current work package. - Formal WP closure: Updates state files (now.md, focus.md, project-state.md), runs validation gates, and produces the final report with baseline-vs-result metrics. - Use Case: After finishing a work package that introduced a new testing convention, run Phase 12 to document the pattern, update the relevant guidelines, mark the phase complete in ROADMAP.md, and close the session with a standardized commit. ## Quick Start Ask the assistant to run Phase 12 STANDARDIZE for the active work package and propagate its lessons learned to the project guidelines.