# PHASE 5: MASTER COORDINATION BRIEF

**Status:** 🟢 **ALL 4 WAVES EXECUTING IN PARALLEL**
**Time:** T+15-45 min into 90-min execution window
**Master Plan:** 8 gaps, 80+ tests, 4 coordinated waves
**Team Lead:** claude-haiku (coordinating from main context)

---

## EXECUTION GRID (Real-Time)

### WAVE 1: Visual Regression (Gaps 5.1-5.2) ✅ COMPLETE
**Completion Time:** T+0 to T+15 min
**Deliverables:**
- Gap 5.1: 4 WebGL unit tests + 13 Playwright visual regression specs (17 tests total)
- Gap 5.2: OAuth event publisher (1 publisher test) + NATS integration
- **Total:** 18 tests, 92%+ coverage

**Status:** ✅ DELIVERED - All tests passing, committed to main

---

### WAVE 2: Frontend Integration (Gaps 5.3-5.5) 🟡 IN PROGRESS
**Execution Window:** T+0 to T+60 min
**Tasks:** #6 (Gap 5.3), #7 (Gap 5.4), #8 (Gap 5.5)
**Agent:** General-purpose + Integration-tests-architect

| Gap | Task | Description | Duration | ETA | Status |
|-----|------|-------------|----------|-----|--------|
| 5.3 | #6 | 8 integration tests (MSW + async) | 40 min | T+40 | 🟡 Phase 1-2 |
| 5.4 | #7 | 1 temporal test (activities + workflows) | 50 min | T+50 ⭐ | 🟡 Phase 1-2 |
| 5.5 | #8 | 6 a11y tests (WCAG validation) | 35 min | T+35 | 🟡 Phase 1-2 |

**Critical Path:** Gap 5.4 (Temporal) = 50 min (longest Wave 2 task)

**Checkpoint Protocol:**
- T+15: Phase 1 complete (handlers + data + activities discovered)
- T+30: Phase 2 complete (files created, test setup started)
- T+45: Phase 3 complete (tests being executed)
- T+60: Phase 4 complete (all 15 tests passing)

---

### WAVE 3: Performance (Gaps 5.6-5.8) 🟢 **LIVE AT T+15**
**Execution Window:** T+15 to T+55-60 min
**Tasks:** #20 (Gap 5.6), #21 (Gap 5.7), #22 (Gap 5.8)
**Agent:** api-performance-implementer

| Gap | Task | Description | Duration | ETA | Status | Notes |
|-----|------|-------------|----------|-----|--------|-------|
| 5.6 | #20 | 15+ API endpoint tests | 30 min | T+45 | 🟢 LIVE | CRUD + contract validation |
| 5.7 | #21 | 10+ GPU shader tests | 40 min | T+55 ⭐ | 🟢 LIVE | 50-100x speedup (CRITICAL) |
| 5.8 | #22 | 8+ spatial index tests | 20 min | T+35 | 🟢 LIVE | 98% culling accuracy |

**Critical Path:** Gap 5.7 (GPU Shaders) = 40 min (longest Wave 3 task)

**Checkpoint Protocol:**
- T+15: All 3 tasks report ready
- T+30-35: Gap 5.8 Phase 1 + Gap 5.6 Phase 1 complete
- T+45: Gap 5.6 complete (15+ tests passing)
- T+55: Gap 5.7 complete (GPU speedup verified, 10k nodes <100ms)
- T+60: Gap 5.8 complete (spatial culling <50ms)

---

### WAVE 4: Validation & Finalization ⏳ STAGED
**Trigger:** When all 3 waves report completion
**Duration:** ~30 min (T+60 to T+90)
**Scope:**
1. Verify 80+ tests passing (5x flake-free runs)
2. Confirm ≥85% coverage across all gaps
3. Validate performance targets:
   - GPU: 50-100x speedup confirmed
   - Spatial: 98% culling, <50ms for 5k edges
4. Create 5 comprehensive commits (one per gap family)
5. Generate Phase 5 completion report
6. Quality score target: 97-98/100

---

## PARALLEL EXECUTION BENEFITS

```
SEQUENTIAL: 8 gaps × 50 min average = 400 min (6.7 hours)
PARALLEL:   max(Wave 1=15, Wave 2=60, Wave 3=45, Wave 4=30) = 150 min (2.5 hours)
SAVINGS:    250 min saved = 62% time reduction
```

**Critical Path Chain:**
1. Wave 1 → Wave 2 (independent, but Wave 1 must complete first)
2. Wave 2 Phase 3-4 → Wave 3 (overlaps, Wave 3 launches while Wave 2 finishing)
3. Waves 2+3 → Wave 4 (parallel completion)

---

## SUCCESS TARGETS

### Gap 5.1 (WebGL Visual Regression) ✅ COMPLETE
- ✅ 4 unit tests passing
- ✅ 13 visual regression specs passing
- ✅ <2% visual tolerance verified
- ✅ 92%+ coverage

### Gap 5.2 (OAuth Events) ✅ COMPLETE
- ✅ Event publisher (9 methods, token masking)
- ✅ NATS JetStream integration
- ✅ 14 tests passing
- ✅ 80%+ coverage

### Gap 5.3 (Frontend Integration Tests) 🟡 IN PROGRESS
- [ ] 8 integration tests passing
- [ ] MSW handlers for 3+ endpoints
- [ ] Async test helpers preventing race conditions
- [ ] 5x flake-free verification
- [ ] ≥85% coverage

### Gap 5.4 (Temporal Snapshot Workflow) 🟡 IN PROGRESS
- [ ] 1 temporal test passing
- [ ] activities.go created (QuerySnapshot, CreateSnapshot, UploadSnapshot)
- [ ] workflows.go created (SnapshotWorkflow with retries)
- [ ] MinIO integration verified
- [ ] Session metadata updated

### Gap 5.5 (E2E Accessibility Tests) 🟡 IN PROGRESS
- [ ] 6 accessibility tests passing
- [ ] WCAG 2.1 AA compliance verified
- [ ] Keyboard navigation tested (Arrow, Home, End, Ctrl+Home, Ctrl+End, PageUp)
- [ ] Screen reader roles correct
- [ ] ≥85% coverage

### Gap 5.6 (API Endpoints) 🟢 LAUNCHING T+15
- [ ] 15+ endpoint tests re-enabled
- [ ] CRUD operations passing (create, read, update, delete, list)
- [ ] Error handling (400, 401, 403, 404, 500)
- [ ] Contract validation + snapshots
- [ ] ≥85% coverage

### Gap 5.7 (GPU Compute Shaders) 🟢 LAUNCHING T+15
- [ ] 10k+ nodes render in <100ms (vs ~30s CPU)
- [ ] 50-100x speedup verified
- [ ] WebGPU + WebGL fallback both working
- [ ] Cross-browser compatible (Chrome, Firefox, Safari, Edge)
- [ ] Memory efficient (<5% overhead)

### Gap 5.8 (Spatial Indexing) 🟢 LAUNCHING T+15
- [ ] 5k edges culled in <50ms per frame
- [ ] 98% culling accuracy verified
- [ ] <5% memory overhead
- [ ] Cohen-Sutherland clipping algorithm correct
- [ ] Rendering FPS improvement verified

---

## MONITORING & ESCALATION

### Team Lead Responsibilities
1. **Monitor checkpoints** (every 15 min) - Check TaskList for status updates
2. **Acknowledge progress** - Send brief "Checkpoint [N] acknowledged" messages
3. **Catch blockers** - Watch for messages indicating issues
4. **Escalate on blockers** - Use master plans to resolve or escalate to main context

### Checkpoint Validation Checklist
- [ ] All executing tasks still in `in_progress` status
- [ ] No new messages with "blocker" or "error"
- [ ] Task metadata updates match expected phases
- [ ] Phase durations tracking to plan (±5 min variance acceptable)

### Blocker Escalation Matrix
| Issue | Resolution | Reference |
|-------|-----------|-----------|
| Undefined method | Add method from code sketch | PHASE_5_BLOCKER_RESOLUTION_REPORT.md |
| Test failure | Debug with code sketch context | Task description |
| Compilation error | Check imports, fix types | Code sketch |
| Dependency issue | Check prerequisites, resolve order | Task description dependencies |
| Cannot resolve | Escalate with full context | Main context (claude-haiku) |

---

## RESOURCE REFERENCES

### Execution Plans (Detailed Implementation)
1. **WAVE_3_EXECUTION_PLAN.md** (NEW - 900 lines)
   - Task #20 (Gap 5.6): 4 phases with code patterns
   - Task #21 (Gap 5.7): 4 phases with WebGPU/WebGL shaders
   - Task #22 (Gap 5.8): 4 phases with Cohen-Sutherland clipping

2. **PHASE_5_3_5_5_IMPLEMENTATION_PLAN.md** (Gaps 5.3-5.5)
   - Lines 423-651: Code sketches for all 3 gaps
   - MSW handler patterns, activities.go template, A11y test patterns

### Monitoring Dashboards
1. **PHASE_5_EXECUTION_COORDINATOR.md** - Real-time grid with checkpoints
2. **PHASE_5_TEAM_LEAD_HANDOFF.md** - Blocker escalation + monitoring protocol
3. **PHASE_5_LIVE_DASHBOARD.md** - Original executive overview
4. **.monitoring-checklist.txt** - Quick reference

### Master References
1. **PHASE_5_BLOCKER_RESOLUTION_REPORT.md** - Example: Event Publisher method mismatch
2. **PHASE_5_WAVE_4_VALIDATION.md** - Wave 4 validation commands + success criteria
3. **docs/reports/PHASE_5_COMPLETE_EXECUTION_PLAN.md** - Full 8-gap architecture (18K)

---

## COMMUNICATION CHANNELS

### For Team Lead
- **Messages:** Incoming from agents on blockers or phase completions
- **TaskList:** Check every 10-15 min for metadata updates
- **Git:** Commits from agents on phase completions

### For Agents
- **Task descriptions:** Use task #N description for full scope
- **Master plans:** Reference code sketches and implementation patterns
- **Checkpoint reports:** Use TaskUpdate to report phase completions
- **Blockers:** Send message to team lead with error context

### Acknowledgment Pattern
When team reports checkpoint completion:
```
"Checkpoint [N] acknowledged - Phase [N+1] authorized. Continue with [scope]."
```

When blocker reported:
```
"Blocker received: [issue]. Checking master plans... [answer or escalation]"
```

---

## TIMELINE SUMMARY

```
T+0   │ Phase 5 Launch - All waves coordinated
      │
T+15  │ 🔔 CHECKPOINT 1
      │ - Wave 1: COMPLETE (18 tests) ✅
      │ - Wave 2: Phase 1 complete (handlers + data ready)
      │ - Wave 3: LIVE (Gap 5.6/5.7/5.8 Phase 1 starting)
      │
T+30  │ 🔔 CHECKPOINT 2
      │ - Wave 2: Phase 2 complete (code scaffolding done)
      │ - Wave 3: Gap 5.8 Phase 1 + Gap 5.6 Phase 1 complete
      │
T+45  │ 🔔 CHECKPOINT 3
      │ - Wave 2: Phase 3 in progress (tests being written)
      │ - Wave 3: Gap 5.6 complete (15+ tests passing)
      │
T+60  │ 🔔 CHECKPOINT 4
      │ - Wave 2: Phase 4 complete (15/15 tests passing)
      │ - Wave 3: Gap 5.7 Phase 3 (GPU speedup validation)
      │
T+55  │ 🔔 Wave 3 CRITICAL CHECKPOINT
      │ - Gap 5.7: Complete (50-100x speedup verified)
      │ - All Wave 3 tests: Passing
      │
T+80  │ 🔔 WAVE 4 LAUNCH
      │ - 5x flake-free verification
      │ - Coverage ≥85% confirmation
      │ - Performance targets validation
      │ - Commit creation
      │
T+90  │ ✅ PHASE 5 COMPLETE
      │ - 80+ tests passing
      │ - Quality score: 97-98/100
      │ - Ready for main branch merge
```

---

## SUCCESS CELEBRATION CRITERIA

### ✅ When Phase 5 is DONE
- [ ] All 80+ tests passing
- [ ] 5x flake-free verification complete
- [ ] Coverage ≥85% across all gaps
- [ ] GPU: 50-100x speedup confirmed (10k nodes <100ms)
- [ ] Spatial: 98% culling accuracy, <50ms for 5k edges
- [ ] WCAG 2.1 AA compliance verified
- [ ] 5 comprehensive commits created
- [ ] Phase 5 completion report generated
- [ ] Quality score: 97-98/100

### 🎉 Final Status
```
PHASE 5 EXECUTION: ✅ COMPLETE
Gaps Closed: 8/8
Tests Implemented: 80+ passing
Wall-Clock Duration: ~90 min (vs 300+ sequential)
Quality Score: 97-98/100
Ready for: Phase 6 (nice-to-haves) or Production Merge
```

---

**MASTER COORDINATION STATUS: 🟢 ACTIVE**
**All Waves: EXECUTING**
**Team Lead: MONITORING**
**Expected Completion: 2026-02-06 03:45 UTC**

