---
milestone: v1.4
audited: 2026-03-22T20:40:00Z
status: tech_debt
scores:
  requirements: 9/9
  phases: 4/4
  integration: 10/11
  flows: 3/4
gaps:
  requirements: []
  integration:
    - id: "ws_errors_healthy not in health gate"
      severity: HIGH
      phase: "04"
      description: "check_ws_errors() sets ws_errors_healthy but key not in CRITICAL_KEYS/WARNING_KEYS/DEGRADED_KEYS — 429/ban detection cannot escalate health level"
  flows:
    - id: "WS 429/Ban LOUD alert flow broken"
      severity: HIGH
      description: "ws_errors_healthy=False renders FATAL visual in Telegram body but message sent silently — health level unaffected"
tech_debt:
  - phase: 03-heartbeat-telemetry-overhaul
    items:
      - "TELEM-03 partial: forming_bar, committed_floors, ws_first_tid hardcoded None in /status endpoint"
  - phase: 04-ws-resilience-enhancements
    items:
      - "ws_errors_healthy not wired into health gate sets — needs adding to WARNING_KEYS"
      - "StreamSignal enum exported from Rust but unused at PyO3 boundary (dead code, by design)"
      - "WsControlRateLimiter has #[allow(dead_code)] — implemented and tested but not yet wired to dynamic subscribe/unsubscribe"
  - phase: 01-dedup-floor-fix
    items:
      - "No VERIFICATION.md — phase was executed and deployed before GSD verification workflow"
  - phase: 02-midnight-preflight-verification
    items:
      - "No VERIFICATION.md — phase was executed and deployed before GSD verification workflow"
  - phase: 03-heartbeat-telemetry-overhaul
    items:
      - "No VERIFICATION.md — phase was executed and deployed before GSD verification workflow"
---

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

## Requirements Coverage

All 9 v1 requirements satisfied:

| Requirement  | Phase   | Status   | Evidence                                                                                       |
| ------------ | ------- | -------- | ---------------------------------------------------------------------------------------------- |
| RUST-01      | Phase 1 | Complete | `last_completed_bar_tid` field in processor.rs, used in live_engine.rs committed_floors        |
| RUST-02      | Phase 1 | Complete | Zero intra-day junction gaps verified in production                                            |
| PREFLIGHT-01 | Phase 2 | Complete | `_get_midnight_crossover_tid()` in sidecar.py queries Binance REST                             |
| PREFLIGHT-02 | Phase 2 | Complete | `_verify_yesterday_orphan()` checks orphan bar TID match                                       |
| PREFLIGHT-03 | Phase 2 | Complete | `_run_midnight_preflight()` anchors fill_from_rest from crossover TID                          |
| TELEM-01     | Phase 3 | Complete | Unified `collect_stathera()` — no intra-day vs midnight split                                  |
| TELEM-02     | Phase 3 | Complete | `collect_yesterday_completion()` queries crossover TID + orphan bar                            |
| TELEM-03     | Phase 3 | Complete | `collect_junction_telemetry()` — rest_last_tid populated, forming_bar/committed_floors stubbed |
| TELEM-04     | Phase 3 | Complete | LOUD Telegram alert fires when gap_delta > 0 and not kintsugi_healing                          |

## Phase Status

| Phase                  | Plans | Verified                     | Status             |
| ---------------------- | ----- | ---------------------------- | ------------------ |
| 1. Dedup Floor Fix     | 2/2   | No VERIFICATION.md (pre-GSD) | Complete, deployed |
| 2. Midnight Preflight  | 2/2   | No VERIFICATION.md (pre-GSD) | Complete, deployed |
| 3. Heartbeat Telemetry | 2/2   | No VERIFICATION.md (pre-GSD) | Complete, deployed |
| 4. WS Resilience       | 2/2   | Passed (6/6)                 | Complete           |

## Cross-Phase Integration

11 exports wired correctly. 1 missing connection (ws_errors_healthy health gate). 1 orphaned export (StreamSignal, by design).

### E2E Flow: Sidecar Restart → Zero-Gap Guarantee

Sidecar restart → midnight preflight queries crossover TID → fill_from_rest anchored from verified TID → committed_floors uses last_completed_bar_tid → bars flow to ClickHouse → heartbeat validates Stathera continuity → LOUD alert if gaps. **COMPLETE.**

### E2E Flow: WS Error → Operator Alert

WS 429/ban → BanDetected error → check_ws_errors classifies → formatter renders FATAL block. **VISUAL COMPLETE but health gate NOT wired** — message sent silently.

## Tech Debt

1. **ws_errors_healthy health gate** (HIGH): Add to WARNING_KEYS in heartbeat/config.py
2. **TELEM-03 stub fields** (MEDIUM): forming_bar, committed_floors, ws_first_tid in /status
3. **Missing VERIFICATION.md** for Phases 1-3 (LOW): Pre-GSD execution, all requirements validated in production
4. **StreamSignal dead code** (LOW): Rust enum exported but unused at PyO3 boundary
5. **WsControlRateLimiter unused** (LOW): Implemented/tested, not yet wired to dynamic operations
