What problem does it solve? Engineering lessons captured as one-off solution documents often get lost, so the same problems are rediscovered repeatedly. This Skill analyzes accumulated solution docs to detect recurring patterns and decides when an experience should be promoted into a critical pattern, a supplement to an existing skill, or a brand-new skill. ## Core Features & Use Cases - Recurrence Detection: Counts how often problems with the same tags appear in docs/solutions/ and flags patterns occurring two or more times. - Promotion Ladder: Classifies each experience into solution doc, critical pattern, skill supplement, or new skill based on recurrence count, affected modules, and non-obviousness. - Recurrence Miner: Periodically mines docs/solutions/ by tags and affected file paths to produce a recurrence analysis report. - Use Case: After ce:compound writes a solution doc about a Windows CRLF hooks issue, the Skill detects three similar tagged solutions across multiple modules and suggests promoting it to a critical pattern and appending a Windows caveats section to the relevant skill. ## Quick Start Ask the AI to run the compound promotion ladder analysis over docs/solutions/ and report which solution docs should be promoted to critical patterns or skills.