# Deletion Log

## 2026-03-03 feature polish

- Scope: `backend/src/v1/agent/*` and `backend/tests/unit/v1/agent/*` only.
- Candidate review source: scoped `refactor-cleaner` run for the directories above.

### Executed cleanup

1. Merged duplicated newline validation logic in `backend/src/v1/agent/service.py`.
   - Before: duplicated checks in `prepare_resume`, `stream_run`, `stream_resume`.
   - After: centralized `_validate_no_newlines` helper.
   - Behavior impact: none (same validation semantics).

2. Merged duplicated SSE event string formatting in `backend/src/v1/agent/service.py`.
   - Before: repeated `f"data: {json.dumps(...)}\n\n"` fragments.
   - After: centralized `_sse_data` helper.
   - Behavior impact: none (same payload format).

### Candidates not deleted (insufficient evidence)

- `backend/src/v1/agent/crewai_flow.py`
  - Reason: candidate report suggested possible dead code, but no deletion was done in this polish pass because cross-module usage certainty was insufficient.
- Legacy `run()` path in `backend/src/v1/agent/service.py`
  - Reason: potentially still relied on by non-scope code paths; deletion deferred.