$ End Session /learn Extracted 3 lessons: 1. Token must be set before validateUser() — reading from localStorage after the call means first request always fails. 2. auth.js touched 3 sessions in a row — add to next review. 3. In-memory cache with TTL beats localStorage for API responses — localStorage causes stale data bugs that are silent in dev. Updating STATUS.md... session 45 → complete Updating skill_scores.md... plan: N · fix-bug: N ✓ memory pushed to GitHub ✓ session 45 complete Session 46 will start where this one ended. 28 lessons · 12 rejected approaches · 89% skill accuracy