handoff

Handoff Command

Create structured handoff documentation for seamless session continuation.

When to Use

Perfect for:

• End of work session (before closing)
• Before context window fills up
• Natural breakpoints (workflow completion)
• Switching to different task
• Team handoffs (sharing context)

Timing:

• Sessions > 2 hours: Recommended
• Before major breaks: Essential
• Complex workflows: Every phase completion

---

Basic Usage

Generate handoff for current session:

/handoff

What happens:

1. Analyzes current session state
2. Extracts workflow progress
3. Captures decision context (WHY you made choices)
4. Prioritizes remaining work (P1/P2/P3)
5. Includes governance and performance metrics
6. Auto-detects confidence level
7. Saves to .claude/whats-next.md and archives

Output:

## Session Handoff

**Session**: session-20251116-143022
**Started**: 2025-11-16 14:30
**Duration**: 4h 15m
**Status**: 🟢 High Confidence

---

## Original Task

**Title**: Build Product Catalog UI
**Priority**: 🔴 High
**Workflow**: full-stack-feature

Create responsive product catalog with filters, search, and pagination.
Support 1000+ products with good performance.

---

## Session Summary

**Key Decisions Made:**
- Chose PostgreSQL array types for product tags (better query performance than JSON)
- React Query for API caching with 5min stale time (balance freshness/performance)
- Filter state in URL params for shareable links
- Pagination set to 50 items/page (UX testing showed optimal)

**Critical Insights:**
- Backend API already handles sorting, don't duplicate in frontend
- Product images need lazy loading (performance issue discovered)
- Search debouncing at 300ms feels responsive (tested)

**Conversation Highlights:**
Spent first hour on architecture decisions (API design, state management).
Implemented core components mid-session. Discovered performance issue with
images late in session, added to todos for next session.

---

## Progress Summary

**Overall**: 5 of 8 agents complete (62%)

✅ frontend-architect
✅ database-architect
✅ backend-architect
✅ python-expert
✅ ui-components-expert
🔄 frontend-developer (Next - 60% complete)
⏳ qc-automation-expert
⏳ deployment-integration-expert

---

## Work Completed

**Completed Items:**
- ✅ Designed component architecture
- ✅ Created database schema with indexes
- ✅ Built REST API endpoints (/products, /search, /filter)
- ✅ Implemented ProductCard, FilterBar, SearchBox components

**Files Modified:**
- `src/components/ProductCard.tsx`: Created product card with image, price, tags
- `src/components/FilterBar.tsx`: Filter UI with category, price range, tags
- `src/api/products.py`: REST endpoints with pagination, sorting, filtering
- `database/schema.sql`: Product table with GIN index on tags array

**Agent Outputs:**
- **frontend-architect**: Component tree, state flow diagram, routing structure
- **database-architect**: Schema with indexes, migration scripts
- **backend-architect**: API spec (OpenAPI), caching strategy
- **python-expert**: Optimized queries with SQLAlchemy, bulk loading
- **ui-components-expert**: Responsive components with Tailwind CSS

---

## Next Steps

**PRIORITY 1 (Critical Path):**
- 🔴 Complete ProductList container component (ties everything together)
- 🔴 Implement lazy loading for product images (performance blocker)

**PRIORITY 2 (High Value):**
- 🟡 Add loading states and error boundaries
- 🟡 Implement pagination controls

**PRIORITY 3 (Nice to Have):**
- 🟢 Add sorting options (name, price, date)
- 🟢 Add filter presets (e.g., "On Sale", "New Arrivals")

**Dependencies:**
- QA testing depends on ProductList completion
- Deployment depends on QA passing

---

## Active Context

**Most Relevant Right Now:**
- 💡 ProductList needs virtualization for 1000+ products (react-window library)
- 💡 Images hosted on CDN, use srcset for responsive loading
- 💡 Filter state structure: `{ category: string[], priceRange: [min, max], tags: string[] }`

**Known Blockers:**
- ⚠️ CDN access not yet configured for images
  - Mitigation: Use placeholder images for development, add todo for ops

**Open Questions:**
- ❓ Should we pre-load next page of results? (UX vs bandwidth trade-off)
- ❓ Real-time stock updates or polling? (need product owner input)

---

## Quality Status

**Last Validation**: ✅ All Checks Pass

- Scorecard: 12/12 ✅
- Write Zone: Updated ✅
- Secrets: None detected ✅
- Format: Valid ✅

---

## Cost & Performance

💰 **Total Cost**: $2.45
⏱️ **Execution Time**: 4h 15m
🤖 **Agents Run**: 5 of 8
📊 **Tokens Used**: 45,230 tokens
📈 **Context Window**: 35.2% used

---

## Technical Context

Key decisions and gotchas:
- Using PostgreSQL array types for tags (better than JSONB for this use case)
- React Query configured with `staleTime: 300000` (5 minutes)
- Filter state managed in URL params: `?category=electronics&priceMin=100&priceMax=500`
- API pagination: limit/offset (consider cursor-based if performance issues)
- Image CDN URLs follow pattern: `${CDN_BASE}/products/${productId}/${size}.webp`
- Frontend validation matches backend (shared validation lib recommended)

---

## To Resume

**To Resume This Session:**

1. **Review this handoff** - Read session summary and active context above
2. **Start with**: Complete ProductList container component (PRIORITY 1)
3. **Continue workflow**: `/run-agent frontend-developer` (will resume from 60%)
4. **After frontend**: Run `/run-agent qc-automation-expert` for testing
5. **Validate**: Run `/validate-output` before proceeding to deployment

**Quick Start Command**:

/run-agent frontend-developer

---

**Generated**: 2025-11-16 18:45:22
**Saved to**: `.claude/handoffs/handoff-2025-11-16-184522.md`