---
milestone: v1.4
audited: 2026-03-23T07:30:00Z
status: tech_debt
scores:
  requirements: 20/21
  phases: 6/6
  integration: 18/19
  flows: 4/5
gaps:
  requirements:
    - id: "TELEM-03"
      status: "partial"
      phase: "Phase 3"
      claimed_by_plans: ["03-02-PLAN.md"]
      completed_by_plans: ["03-02-SUMMARY.md"]
      verification_status: "partial"
      evidence: "junction_ws_first_tid and junction_committed_floors never populated in _junction_state — always 'unavailable'. REST last TID works. Informational-only (not health-gating)."
  integration:
    - from: "sidecar.py _junction_state"
      to: "heartbeat junction.py"
      issue: "ws_first_tid never populated; committed_floors hardcoded None"
  flows:
    - name: "TELEM-03 Junction Diagnostic"
      broken_at: "ws_first_tid and committed_floors sub-fields"
      impact: "Informational telemetry only — not health-gating"
tech_debt:
  - phase: "01-dedup-floor-fix"
    items:
      - "Missing VERIFICATION.md — phase completed before verifier was available. Integration checker confirms wiring."
  - phase: "02-midnight-preflight-verification"
    items:
      - "Missing VERIFICATION.md — phase completed before verifier was available. Integration checker confirms wiring."
  - phase: "03-heartbeat-telemetry-overhaul"
    items:
      - "Missing VERIFICATION.md — phase completed before verifier was available. Integration checker confirms wiring."
  - phase: "04-ws-resilience-enhancements"
    items:
      - "WsControlRateLimiter intentionally dead-code (#[allow(dead_code)]) — future dynamic subscribe/unsubscribe"
  - phase: "06-memory-efficiency-refactoring"
    items:
      - "REQUIREMENTS.md traceability table lines 75-82 still show 'Not started' for MEM-01-08 (checkbox list is correct)"
nyquist:
  compliant_phases: ["05"]
  partial_phases: []
  missing_phases: ["01", "02", "03", "04", "06"]
  overall: "partial"
---

# Milestone v1.4: Zero-Gap Zero-Overlap Guarantee — Audit Report

**Audited:** 2026-03-23T07:30:00Z
**Status:** TECH DEBT (no blockers, accumulated deferred items)
**Score:** 20/21 requirements satisfied, 1 partial

---

## Requirements Coverage (3-Source Cross-Reference)

### Phase 1: Dedup Floor Fix (No VERIFICATION.md)

| Requirement | VERIFICATION.md | SUMMARY Frontmatter | REQUIREMENTS.md | Final Status                         |
| ----------- | --------------- | ------------------- | --------------- | ------------------------------------ |
| RUST-01     | missing         | 01-01, 01-02        | [x] Complete    | **satisfied** (integration-verified) |
| RUST-02     | missing         | 01-02               | [x] Complete    | **satisfied** (integration-verified) |

### Phase 2: Midnight Preflight Verification (No VERIFICATION.md)

| Requirement  | VERIFICATION.md | SUMMARY Frontmatter | REQUIREMENTS.md | Final Status                         |
| ------------ | --------------- | ------------------- | --------------- | ------------------------------------ |
| PREFLIGHT-01 | missing         | —                   | [x] Complete    | **satisfied** (integration-verified) |
| PREFLIGHT-02 | missing         | —                   | [x] Complete    | **satisfied** (integration-verified) |
| PREFLIGHT-03 | missing         | 02-02               | [x] Complete    | **satisfied** (integration-verified) |

### Phase 3: Heartbeat Telemetry Overhaul (No VERIFICATION.md)

| Requirement | VERIFICATION.md | SUMMARY Frontmatter | REQUIREMENTS.md | Final Status                                                  |
| ----------- | --------------- | ------------------- | --------------- | ------------------------------------------------------------- |
| TELEM-01    | missing         | 03-01               | [x] Complete    | **satisfied** (integration-verified)                          |
| TELEM-02    | missing         | —                   | [x] Complete    | **satisfied** (integration-verified)                          |
| TELEM-03    | missing         | —                   | [x] Complete    | **partial** — ws_first_tid + committed_floors never populated |
| TELEM-04    | missing         | 03-01               | [x] Complete    | **satisfied** (integration-verified)                          |

### Phase 4: WS Resilience Enhancements

| Requirement     | VERIFICATION.md | SUMMARY Frontmatter | REQUIREMENTS.md | Final Status  |
| --------------- | --------------- | ------------------- | --------------- | ------------- |
| (no formal IDs) | passed (6/6)    | —                   | —               | **satisfied** |

### Phase 5: Seeder REST & Rate Limit Coordination

| Requirement | VERIFICATION.md    | SUMMARY Frontmatter | REQUIREMENTS.md | Final Status  |
| ----------- | ------------------ | ------------------- | --------------- | ------------- |
| SEEDER-01   | passed (SATISFIED) | —                   | [x] Complete    | **satisfied** |
| SEEDER-02   | passed (SATISFIED) | 05-04               | [x] Complete    | **satisfied** |
| SEEDER-03   | passed (SATISFIED) | 05-04               | [x] Complete    | **satisfied** |
| SEEDER-04   | passed (SATISFIED) | 05-01               | [x] Complete    | **satisfied** |

### Phase 6: Memory Efficiency Refactoring

| Requirement | VERIFICATION.md    | SUMMARY Frontmatter | REQUIREMENTS.md   | Final Status  |
| ----------- | ------------------ | ------------------- | ----------------- | ------------- |
| MEM-01      | passed (SATISFIED) | 06-02               | [x] Not started\* | **satisfied** |
| MEM-02      | passed (SATISFIED) | 06-02               | [x] Not started\* | **satisfied** |
| MEM-03      | passed (SATISFIED) | —                   | [x] Not started\* | **satisfied** |
| MEM-04      | passed (SATISFIED) | 06-04               | [x] Not started\* | **satisfied** |
| MEM-05      | passed (SATISFIED) | 06-04               | [x] Not started\* | **satisfied** |
| MEM-06      | passed (SATISFIED) | 06-04               | [x] Not started\* | **satisfied** |
| MEM-07      | passed (SATISFIED) | 06-04               | [x] Not started\* | **satisfied** |
| MEM-08      | passed (SATISFIED) | 06-02               | [x] Not started\* | **satisfied** |

\*Checkbox [x] is correct; traceability table status text is stale.

---

## Cross-Phase Integration

**Connected:** 18 exports properly wired
**Orphaned:** 1 (intentional: `WsControlRateLimiter` dead-code stub)
**Missing:** 2 connections (TELEM-03 sub-fields — informational only)

### Sidecar Startup Sequence (E2E verified)

All 6 phases' changes work together in the startup sequence:

1. Start WS (buffered) → Skip checkpoint → Midnight preflight (Phase 2) → Kill mutations + DELETE today → fill_from_rest → sync_flush → committed_floors from `last_completed_bar_tid` (Phase 1)

### Missing Connections

| From                              | To                      | Issue                             | Impact                            |
| --------------------------------- | ----------------------- | --------------------------------- | --------------------------------- |
| `sidecar.py _junction_state`      | `heartbeat junction.py` | `ws_first_tid` never populated    | Informational — not health-gating |
| `live_engine.rs committed_floors` | `sidecar.py /status`    | `committed_floors` hardcoded None | Informational — not health-gating |

---

## Phase Verification Summary

| Phase                  | VERIFICATION.md | Score | Status               |
| ---------------------- | --------------- | ----- | -------------------- |
| 1. Dedup Floor Fix     | Missing         | —     | Integration-verified |
| 2. Midnight Preflight  | Missing         | —     | Integration-verified |
| 3. Heartbeat Telemetry | Missing         | —     | Integration-verified |
| 4. WS Resilience       | Present         | 6/6   | Passed               |
| 5. Seeder REST         | Present         | 15/15 | Passed               |
| 6. Memory Efficiency   | Present         | 9/9   | Passed               |

---

## Nyquist Compliance

| Phase | VALIDATION.md | Compliant | Action                   |
| ----- | ------------- | --------- | ------------------------ |
| 01    | missing       | —         | `/gsd:validate-phase 01` |
| 02    | missing       | —         | `/gsd:validate-phase 02` |
| 03    | missing       | —         | `/gsd:validate-phase 03` |
| 04    | missing       | —         | `/gsd:validate-phase 04` |
| 05    | exists        | true      | —                        |
| 06    | missing       | —         | `/gsd:validate-phase 06` |

---

## Tech Debt Summary

### 5 items across 5 phases

**Phase 01-03:** Missing VERIFICATION.md (pre-verifier phases — integration checker confirms all wiring)

**Phase 04:** `WsControlRateLimiter` `#[allow(dead_code)]` — intentional stub for future dynamic subscribe/unsubscribe

**Phase 06:** REQUIREMENTS.md traceability table shows "Not started" for MEM-01-08 (checkboxes correct, table text stale)

---

## Conclusion

**20 of 21 requirements fully satisfied.** The one partial (TELEM-03) has its primary function working (REST last TID) but two informational sub-fields (`ws_first_tid`, `committed_floors`) are never populated. This is informational-only telemetry — not health-gating, not blocking any other requirement.

**No critical blockers.** The sidecar startup sequence, gap-filling pipeline, heartbeat monitoring, and memory optimizations all work end-to-end as verified by the integration checker and oracle regression tests.

---

_Audited: 2026-03-23T07:30:00Z_
_Auditor: Claude (gsd-audit-milestone)_
