What problem does it solve? After a goal closes, lessons from the session are usually lost. This Skill reviews the goal's journal, verification evidence, and state to record mistakes, detect recurring failure patterns, and promote proven lessons into durable rules so future agent sessions avoid repeating the same errors. ## Core Features & Use Cases - Mistake Ledger: Appends structured mistake entries (kind, root cause, fix, recurrence potential) to an append-only mistakes.nav file. - Pattern Distillation: Writes generalizable observations to patterns.md as advisory guidance for future planners and executors. - Evidence-Based Rule Promotion: Promotes mistakes to mandatory rules in rules.md only after 2+ recurrences or explicit owner approval, preventing rule bloat. - Use Case: After /loop closes a migration goal, the Skill scans the journal for blocked tasks and verification failures, logs two new mistakes, and promotes a recurring wrong-path error into a rule that all future sessions must follow. ## Quick Start Run a retroactive meta-review on the goal that just closed to record its mistakes and update the memory index.
