# Resolution Summary

**Branch**: feat/api-translation-proxy -> main
**Date**: 2026-04-24
**Review**: .docs/reviews/feat-api-translation-proxy/2026-04-24_1232
**Command**: /resolve

## Statistics
| Metric | Value |
|--------|-------|
| Total Issues | 17 |
| Fixed | 10 |
| False Positive | 5 |
| Deferred | 0 |
| Blocked | 0 |

## Fixed Issues
| Issue | File:Line | Commit |
|-------|-----------|--------|
| I1 — Test factory uses non-existent `delta` property on ContentDeltaEvent | middleware.test.ts:35 | adb48b5 |
| I2 — Stale JSDoc references removed SUPPORTED_TRANSLATE_TARGETS constant | configuration.ts:232 | ea721b5 |
| I3 — TranslateTarget triple-definition without shared constant | configuration.ts, agents.ts, mcp-adapter.ts | ea721b5 |
| I5 — handleNonStreamingRequest 76-line 5-level nesting | translation-proxy.ts:417-492 | 7769739 |
| I6 — SUPPORTED_TRANSLATE_TARGETS not typed against TranslateTarget | agents.ts:23 | ea721b5 |
| I8 — processNonStreamingResponse boolean return unused | translation-proxy.ts:381 | ea721b5 |
| I9 — handleSseStream 7 params + repeated callback pairs | translation-proxy.ts:539 | 7769739 |
| I10 — Unbounded error buffer accumulation | translation-proxy.ts:450,502 | ea721b5 |
| I13 — `as` casts after Map.has() — use proper narrowing | openai-codec.ts:319,328 | eab3596 |
| I14 — Test passes for wrong reason after validation moved | bootstrap-proxy-integration.test.ts:106 | b6a1fcd |

## False Positives
| Issue | File:Line | Reasoning |
|-------|-----------|-----------|
| I4 — Backend error forwarded without sanitization | translation-proxy.ts:145-157 | Proxy binds exclusively to 127.0.0.1 — only client is local Claude Code process. Forwarding rate-limit/auth error messages is intentional for debugging. Added DECISION comment documenting the local-only trust model. |
| I11 — processToolCallDeltas 3-way branching complexity | openai-codec.ts:307-368 | The 3-way branch represents a state machine with three mutually exclusive states. Each branch has inline comments. Extracting into methods would scatter the state machine without reducing cyclomatic complexity. |
| I15 — runResponseMiddleware creates reversed copy per call | middleware.ts:41 | Called once per non-streaming request on a 3-element array. Negligible cost. Structurally different from hot-path streaming case. |
| I16 — No unit tests for extractBackendErrorMessage | translation-proxy.ts:145-157 | Private module-level function. All 4 code paths covered by integration tests. Exporting solely for unit tests would leak implementation detail. |
| I17 — Per-request middleware factory allocates 3 objects | translation-proxy.ts:347 | Already documented as correct trade-off (DECISION comment). Necessary for concurrency safety with stateful middleware. |

## Additional Changes (from Simplifier + quality gates)
| Change | File | Commit |
|--------|------|--------|
| Removed redundant SUPPORTED_TRANSLATE_TARGETS alias | agents.ts | Simplifier |
| Extracted parseToolArguments helper | openai-codec.ts | Simplifier |
| Reference impl JSDoc on runStreamEventMiddleware | middleware.ts | eedb0ca |
| Silent translate value dropping documented with DECISION comment | configuration.ts:258 | ea721b5 |
