---
milestone: v1.2
audited: 2026-03-20T10:00:00Z
status: passed
scores:
  requirements: 12/12
  phases: 4/4
  integration: 12/12
  flows: 4/4
gaps:
  requirements: []
  integration: []
  flows: []
tech_debt:
  - phase: 01-telegram-thread-leak
    items:
      - "Minor: _TelegramLogSink._send() instantiates NetworkConfig() per fire-and-forget send (uncached pydantic in thread pool worker)"
  - phase: 02-kintsugi-rest-ch-connection
    items:
      - "By design: replay_dead_letters() uses with OpenDeviationBarCache() per-file (main thread, infrequent — not a hot path)"
  - phase: 04-python-efficiency
    items:
      - "Minor: 11 _kintsugi_cfg() call sites outside _repair() remain uncached (notification/daemon paths, not hot path)"
      - "STAB-04 has no hard 30-min enforcement — emergent property of STAB-03 concurrency capping"
---

# Milestone v1.2 — Performance Audit

**Audited:** 2026-03-20
**Status:** PASSED
**Score:** 12/12 requirements satisfied

## Phase Results

| Phase | Name                                      | Status   | Score | Must-Haves                                                                  |
| ----- | ----------------------------------------- | -------- | ----- | --------------------------------------------------------------------------- |
| 01    | Telegram Thread Leak Fix (P0)             | ✓ Passed | 3/3   | Bounded ThreadPoolExecutor, no crash propagation, direct callers unaffected |
| 02    | Kintsugi REST + CH Connection Fix (P1-P2) | ✓ Passed | 4/4   | Thread-local CH cache, REST cap, 3-tier concurrency, fd headroom            |
| 03    | Rust Hot Path Optimization (P3-P5)        | ✓ Passed | 3/3   | from_f64(), O(N) chunk cache, burst frame reuse                             |
| 04    | Python Efficiency (P6-P8)                 | ✓ Passed | 3/3   | Config caching, dynamic Vision TTL, copy removal                            |

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

| REQ-ID  | Description                            | Phase | VERIFICATION | SUMMARY | REQUIREMENTS | Final     |
| ------- | -------------------------------------- | ----- | ------------ | ------- | ------------ | --------- |
| STAB-01 | Bounded thread pool for log sink       | 1     | passed       | listed  | [x]          | satisfied |
| STAB-02 | Failed Telegram doesn't crash kintsugi | 1     | passed       | listed  | [x]          | satisfied |
| STAB-03 | REST concurrency limit separate        | 2     | passed       | listed  | [x]          | satisfied |
| STAB-04 | REST repair <30 min                    | 2     | passed       | listed  | [x]          | satisfied |
| STAB-05 | Thread-local CH cache                  | 2     | passed       | listed  | [x]          | satisfied |
| STAB-06 | No fd exhaustion                       | 2     | passed       | listed  | [x]          | satisfied |
| RUST-01 | FixedPoint::from_f64()                 | 3     | passed       | listed  | [x]          | satisfied |
| RUST-02 | O(N) chunk iteration                   | 3     | passed       | listed  | [x]          | satisfied |
| RUST-03 | Burst frame Vec reuse                  | 3     | passed       | listed  | [x]          | satisfied |
| PYEF-01 | Config caching in \_repair()           | 4     | passed       | listed  | [x]          | satisfied |
| PYEF-02 | Vision TTL 15min for recent dates      | 4     | passed       | listed  | [x]          | satisfied |
| PYEF-03 | Remove DataFrame copy                  | 4     | passed       | listed  | [x]          | satisfied |

**Orphaned requirements:** None
**Unsatisfied requirements:** None

## Integration Report

All 12 requirement wiring paths verified by integration checker. No broken cross-phase flows. Key findings:

- Phase 1→2: No direct wiring needed (independent fixes in same codebase)
- Phase 3: Pure Rust changes consumed via PyO3 binary extension — structurally correct
- Phase 4 touches kintsugi.py (also modified by Phase 2) — no conflicts, changes target different functions

## Tech Debt (Non-Critical)

| Phase | Item                                                      | Impact                                            |
| ----- | --------------------------------------------------------- | ------------------------------------------------- |
| 01    | NetworkConfig() instantiated per \_send() in thread pool  | Minimal — fire-and-forget path, 2 workers max     |
| 02    | replay_dead_letters() uses per-file OpenDeviationBarCache | By design — main thread, infrequent               |
| 04    | 11 \_kintsugi_cfg() calls outside \_repair() uncached     | Notification/daemon paths, not per-shard hot loop |
| 04    | STAB-04 has no hard 30-min enforcement                    | Emergent property of STAB-03 concurrency capping  |

**Total:** 4 items across 3 phases. None are blockers.
