lesson（lesson 工具）

Lesson Extraction & Storage

When triggered, extract and store lessons from the recent conversation context.

Steps

1. Scan recent context — identify the pitfall, bug fix, or key insight just discussed
2. Store technical layer (category: fact, importance ≥ 0.8): Pitfall: [symptom]. Cause: [root cause]. Fix: [solution]. Prevention: [how to avoid].
3. Store principle layer (category: decision, importance ≥ 0.85): Decision principle ([tag]): [behavioral rule]. Trigger: [when]. Action: [what to do].
4. Verify — memory_recall with anchor keywords to confirm both entries retrievable
5. Report — tell Master what was stored (brief summary)

Rules

• Keep entries short and atomic (< 500 chars each)
• If the lesson also affects a checklist or SKILL.md, update those files too
• If no clear lesson is found in recent context, ask Master what to store