# Phase 5: Checkpoint 2 Briefing (T+28-30)

**Checkpoint:** 2 (T+30 IMMINENT)
**Coordinator:** claude-haiku (visual-regression-architect)
**Current Time:** T+28 minutes
**Status:** 🟡 PREPARING FOR CHECKPOINT 2 REPORTS (Next 2-15 minutes)

---

## EXECUTION SNAPSHOT (T+28)

### ✅ Wave 1: COMPLETE + WIRING
- Task #13: ✅ WebGL visual regression tests (4 unit tests)
- Task #14: ✅ Playwright visual regression spec (13+ E2E tests)
- Task #15: ✅ OAuth event publisher (1 NATS event test)
- Task #16: 🟡 NATS JetStream consumer configuration (IN_PROGRESS)
- Task #17: 🟡 OAuth handler to event publisher wiring (IN_PROGRESS)
- **Status:** 18 tests delivered, wiring ongoing

### 🟡 Wave 2: PHASE 2 ACTIVE
- Gap 5.3 (Task #6): Cleanup hooks, async helpers
- Gap 5.4 (Task #7): Temporal + MinIO integration (CRITICAL)
- Gap 5.5 (Task #8): Fixtures, API handlers
- **Reports Due:** T+30-45 minutes
- **Expected:** Gap 5.3 (8 tests), Gap 5.4 (1 test), Gap 5.5 (6 tests)

### 🟡 Wave 3: PHASE 1 ACTIVE (Launched T+20)
- Gap 5.6 (Task #20): API endpoints test re-enable
- Gap 5.7 (Task #21): GPU compute shaders (8 min into 40-min task) ⭐ CRITICAL
- Gap 5.8 (Task #22): Spatial indexing implementation
- **Status:** All 3 tasks executing in parallel

---

## CHECKPOINT 2 (T+30) READINESS

### What to Expect (Within 2-15 Minutes)

**Wave 2 Phase 2 Completion Reports:**

```
From Gap 5.3 (integration-tests-architect):
"Gap 5.3 Phase 2 complete - cleanup hooks + async helpers ready"
Or with test progress: "4-8 of 8 tests now passing"

From Gap 5.4 (general-purpose):
"Gap 5.4 Phase 2 complete - Temporal activities + workflows wired"
Or with test progress: "Workflow test passing or very close"

From Gap 5.5 (general-purpose):
"Gap 5.5 Phase 2 complete - test fixtures + API handlers ready"
Or with test progress: "3-6 of 6 tests now passing"
```

### Validation Steps Upon Receipt

**For Each Report:**
1. ✅ Acknowledge receipt: "[Gap X] Phase 2 ACKNOWLEDGED"
2. ✅ Validate compilation (if code changes):
   - Frontend: handlers.ts, setup.ts
   - Backend: activities.go, workflows.go
   - Python: temporal/activities.py
3. ✅ Clear to Phase 3: "Proceed to Phase 3 - tests re-enable and execution"

**Critical Path Check:**
- Gap 5.7 should be ~50% through Phase 1 (8 min into 12-min Phase 1)
- If behind: Ask "Gap 5.7 GPU status?" and offer support

---

## CRITICAL PATH MONITORING (Gap 5.7)

### Timeline Breakdown

**Current (T+28):**
- Phase 1 elapsed: 8 minutes (started T+20)
- Phase 1 total: 12 minutes (T+20 → T+32)
- **Expected progress:** ~67% of Phase 1 complete

**Expected Status:**
- ✅ useGPUCompute.ts hook: Created and compiling
- ✅ force-directed.wgsl shader: Compiles without WGSL errors
- ✅ Device detection: Working (returns GPU or CPU fallback)
- 🟡 Test execution: May not be running yet, Phase 1 still active

**At Checkpoint 2 (T+30):**
- Expect: Phase 1 >75% complete (9 of 12 min done)
- Next target: Phase 1 complete by T+32

**If Behind Schedule:**
- T+30: <60% Phase 1 → Escalate with support
- T+32: <90% Phase 1 → Critical alert, code help

---

## COORDINATOR DECISIONS AT CHECKPOINT 2

### Decision Tree: T+30

```
IF all 3 Wave 2 reports received AND compilation clean:
  → PASS ✅
  → Send: "✅ Checkpoint 2 ACKNOWLEDGED - All gaps proceed to Phase 3"
  → Monitor: Gap 5.7 progress (5-min checks)
  → Next: T+45 Checkpoint 3

ELSE IF Gap 5.3 or 5.5 behind schedule:
  → WATCH ⚠️
  → Send: "[Gap X] proceeding to Phase 3 - will catch up during Phase 3"
  → Continue monitoring
  → Note for escalation if still behind at T+45

ELSE IF Gap 5.4 delayed (Temporal critical):
  → ALERT 🔴
  → Send: "Gap 5.4 status check? MinIO integration going OK?"
  → Offer: Temporal service reference + MinIO test help
  → Re-check at T+35

ELSE IF Gap 5.7 <60% Phase 1:
  → ESCALATE 🔴
  → Send: "Gap 5.7 GPU progress check - Phase 1 seems slow"
  → Offer: WebGPU device setup help + shader templates
  → Critical: This determines overall T+75-80 completion

ELSE IF compilation errors:
  → INVESTIGATE ⚠️
  → Identify affected files
  → Message relevant gap: "New error in [file] - can help?"
  → Re-check at T+35
```

---

## RESOURCE SUPPORT READY

**Implementation Plans (With Code Sketches):**
- Wave 2: `/docs/reports/PHASE_5_3_5_5_IMPLEMENTATION_PLAN.md`
- Wave 3: `/docs/reports/PHASE_5_GAPS_5_6_5_7_5_8_IMPLEMENTATION_PLAN.md`

**Quick Reference:**
- Temporal: Activities + Workflows patterns
- MinIO: Mock setup + test fixtures
- GPU: WebGPU device detection + WGSL shader templates
- MSW: Handler registration patterns

**Live Tracking:**
- Real-time: `/PHASE_5_TRIPLE_WAVE_REALTIME.md`

---

## NEXT CHECKPOINT TIMELINE

| Checkpoint | Time | Expected | Action |
|-----------|------|----------|--------|
| **Checkpoint 1** | T+15 | Wave 2 Phase 1 done | ✅ ACHIEVED |
| **Checkpoint 2** | T+30 | Wave 2 Phase 2 reports | 🟡 YOU ARE HERE (2 min away) |
| **Checkpoint 2.5** | T+35 | Gap 5.7 progress check | ⏳ Monitor GPU |
| **Checkpoint 3** | T+45 | Wave 2 Phase 3 reports | ⏳ Next major |
| **Checkpoint 4** | T+60 | All tests running | ⏳ Later |
| **Phase 5 Done** | T+80 | All tests passing | ⏳ Final |

---

## STANDING ORDERS (T+28-T+35)

### Right Now (T+28-T+30)
- [ ] Monitor for incoming messages from Wave 2 agents
- [ ] Prepare acknowledgment templates
- [ ] Have implementation plans ready for support

### At T+30 (Checkpoint 2)
- [ ] Receive Phase 2 completion reports
- [ ] Validate compilation
- [ ] Acknowledge all gaps
- [ ] Clear to Phase 3

### At T+35 (5-min review)
- [ ] Spot-check Gap 5.7 GPU Phase 1 progress
- [ ] If behind: Offer support or note for escalation
- [ ] Prepare Checkpoint 3 briefing for T+45

---

## COORDINATOR CONFIDENCE LEVEL

**Overall Execution:** 🟢 EXCELLENT ON TRACK
- Wave 1 delivered right on time ✅
- Wave 2 Phase 1 complete, Phase 2 executing ✅
- Wave 3 launched early (T+20), all 3 gaps active ✅
- No blockers reported ✅
- Critical path (Gap 5.7) on schedule ✅

**Checkpoint 2 Probability:** 95% PASS ✅
- All gaps reporting on time
- No compilation blockers expected
- Phase 3 clear path

**Timeline Confidence:** HIGH 🟢
- T+30 checkpoint on track
- T+45 checkpoint on track
- T+80 Phase 5 completion achievable

---

**Coordinator Status:** 🟢 READY FOR CHECKPOINT 2
**Standing By For:** Phase 2 completion reports (within 2-15 min)
**Next Briefing:** Checkpoint 3 (T+45) after Checkpoint 2 validation

