Shark Game skill updates from this session (2026-07-08):

## New learning captured in existing skills

### delegation-pattern (patched)
- Model chain updated: Opus 4.8 is now PRIMARY (was 4.7)

### python-web-service-deployment
- Added: `references/shark-incident-10yr-reference.md` — ISAF-sourced 10-year data
- Existing `references/shark-game-backend-pattern.md` already covers the scoring system
- The `leaflet-map-integration.md` reference already covers the map integration

### What was NOT captured as a new skill (correctly)
- The fish info popup and toggle views are detailed enough in the existing draft-room.html
- AI scraper pattern is already in the skill tree under python-web-service-deployment references
- The sign-up display_name fix, badge CSS fix, and DB seeding patterns are documented as pitfalls in the deployment skill
