# Implementation Report — Phase B Cycle 1 (Refactoring)

**Cycle**: Phase B, cycle 1 (`state.cycle = 1`)
**Date close**: 2026-05-11
**Epic**: AZ-447 (`01-testability-refactoring`)
**Findings closed**: F4 (Public API barrels) + F7 (Endpoint builders) — both from `_docs/02_document/architecture_compliance_baseline.md`
**Total complexity**: 10 pts (5 + 5)
**Verdict**: PASS

## Tasks

| Task | Spec | Batch | Commit | Verdict | AC Coverage |
|------|------|-------|--------|---------|-------------|
| AZ-485 — Public API barrels + STC-ARCH-01 | `_docs/02_tasks/done/AZ-485_refactor_public_api_barrels.md` | batch 9 | `23746ec` | PASS | 7 / 7 |
| AZ-486 — Endpoint builders + STC-ARCH-02 | `_docs/02_tasks/done/AZ-486_refactor_endpoint_builders.md` | batch 10 | `8a461a2` | PASS | 7 / 7 |

Batch reports: `_docs/03_implementation/batch_09_report.md`, `_docs/03_implementation/batch_10_report.md` (canonical per-batch source of truth — design decisions, modified-files inventory, AC test mapping).

## Architecture Outcome

After cycle 1, the `src/` codebase has two coupled static gates that lock in the architecture vision:

1. **`STC-ARCH-01`** (`scripts/check-arch-imports.mjs --mode=arch-imports`) — every cross-component import MUST go through the component's barrel (`src/<component>/index.ts`). Closes F4. One F3-pending exemption (`features/annotations/classColors`) documented in 5 places.

2. **`STC-ARCH-02`** (`scripts/check-arch-imports.mjs --mode=api-literals`) — no hardcoded `/api/<service>/<...>` literals in production source. The single source of truth is `src/api/endpoints.ts`, re-exported via the `01_api-transport` barrel. Closes F7. Exemptions: the contract owner (`endpoints.ts`) and `*.test.tsx?` files under `src/`.

The two gates are symmetric (single shared script, side-by-side `--mode` flags, identical fixture-driven test harness in `tests/architecture_imports.test.ts`). Adding a future STC-ARCH-03 / -04 follows the same pattern.

## Test Suite Delta

| Metric | End of Phase A (Step 7) | End of cycle 1 (Step 11) | Delta |
|--------|-------------------------|---------------------------|-------|
| Fast profile PASS | 163 | **209** | +46 |
| Fast profile SKIP | 13 | 13 | 0 |
| Fast profile FAIL | 0 | 0 | 0 |
| Static profile gates | 29 / 29 PASS | **31 / 31 PASS** | +2 (STC-ARCH-01, STC-ARCH-02) |

No regressions. All 46 new fast tests are additive — 4 new STC-ARCH-01 architecture cases (AZ-485), 6 new STC-ARCH-02 architecture cases (AZ-486), 36 new endpoint contract assertions (AZ-486).

## Code Review Trace

- Per-batch self-review: PASS (0 Critical / 0 High / 0 Medium / 0 Low on both batches).
- Cumulative review (K=3 trigger): not fired — cycle 1 had only 2 batches. Next cumulative review at the next 3-batch window close.

## Productivity Notes (Retro Input)

- **Single script, two modes** (Design Decision #1 in batch 10 report) replaced the obvious-but-wrong choice of forking `check-arch-imports.mjs` into a second script. Saved ~150 LOC of duplicated walker/comment-skip machinery and eliminated a drift surface.
- **All-quote-style regex** (`[`'"]/api/<service>/`) caught a class of regressions the spec's illustrative single-quote ripgrep would have missed. Locked in with 3 quote-style-specific test cases.
- **Resume of in-progress AZ-486 work** at the start of this session: the user's prior session left the working tree with most of AZ-486 done but unrecorded. The autodev orchestrator detected the state/working-tree disagreement and surfaced it as a Choose block before continuing — this is exactly what the state-reconciliation rule in `state.md` is for.

## Next

Auto-chain → Step 12 (Test-Spec Sync, `test-spec/SKILL.md` cycle-update mode).
