# Phase 1 Site Inventory — rag_engine.py

**File:** `src/rag_engine.py`
**Source:** `tests/artifacts/PHASE1_AUDIT_BASELINE.json` (audit `--include-baseline`)
**Total sites in audit:** 15
**Migration-target sites:** 9
**Stay-as-is sites:** 6

## Category Breakdown

| Category | Count |
|---|---|
| INTERNAL_BROAD_CATCH (MIGRATION) | 5 |
| INTERNAL_COMPLIANT (stay) | 1 |
| INTERNAL_PROGRAMMER_RAISE (stay) | 5 |
| INTERNAL_RETHROW (MIGRATION) | 3 |
| INTERNAL_SILENT_SWALLOW (MIGRATION) | 1 |

## Migration-Target Sites

| # | Line | Category | Code excerpt | Phase bucket |
|---|---|---|---|---|
| 1 | L29 | INTERNAL_RETHROW | `_get_sentence_transformers` (EXCEPT) | Phase 12 (ai) / Phase 13 (rag) |
| 2 | L32 | INTERNAL_RETHROW | `_get_sentence_transformers` (RAISE) | Phase 12 (ai) / Phase 13 (rag) |
| 3 | L33 | INTERNAL_BROAD_CATCH | `_get_sentence_transformers` (EXCEPT) | Batch (Phase 3-7) |
| 4 | L36 | INTERNAL_RETHROW | `_get_sentence_transformers` (RAISE) | Phase 12 (ai) / Phase 13 (rag) |
| 5 | L224 | INTERNAL_BROAD_CATCH | `_chunk_code` (EXCEPT) | Batch (Phase 3-7) |
| 6 | L247 | INTERNAL_BROAD_CATCH | `index_file` (EXCEPT) | Batch (Phase 3-7) |
| 7 | L255 | INTERNAL_SILENT_SWALLOW | `index_file` (EXCEPT) | Phase 8 (mcp) / Phase 11 (ai) / Phase 13 (rag) |
| 8 | L261 | INTERNAL_BROAD_CATCH | `index_file` (EXCEPT) | Batch (Phase 3-7) |
| 9 | L290 | INTERNAL_BROAD_CATCH | `_async_search_mcp` (EXCEPT) | Batch (Phase 3-7) |

## Stay-As-Is Sites

| Line | Category | Code excerpt |
|---|---|---|
| L31 | INTERNAL_PROGRAMMER_RAISE | `_get_sentence_transformers` (RAISE) |
| L57 | INTERNAL_PROGRAMMER_RAISE | `embed` (RAISE) |
| L75 | INTERNAL_PROGRAMMER_RAISE | `embed` (RAISE) |
| L80 | INTERNAL_PROGRAMMER_RAISE | `embed` (RAISE) |
| L109 | INTERNAL_PROGRAMMER_RAISE | `_init_embedding_provider` (RAISE) |
| L165 | INTERNAL_COMPLIANT | `_validate_collection_dim_result` (EXCEPT) |