# Audit Report: Deterministic Entity Resolution for Read Pipeline

**Verdict: PASS**

**Spec:** `.vibeflow/specs/deterministic-entity-resolution-read.md`
**Date:** 2026-03-20

## Tests

```
352 passed, 8 warnings in 0.23s
ruff: All checks passed
mypy: Success, no issues found in 41 source files
```

All tests pass. No regressions.

## DoD Checklist

- [x] **DoD 1: Resolução determinística funciona** — `resolve_query_entities()` implementada em `query_expansion.py:275-351` com 3 layers paralelos via `asyncio.gather()`: alias match (`_resolve_aliases`), display name match (`_resolve_by_display_name`), slug match (`_resolve_by_slug`). Retorna `list[str]`, fail-safe com try/except. Testes: `TestResolveQueryEntities` (6 testes cobrindo alias, display_name, slug, dedup, empty, failsafe).

- [x] **DoD 2: Graph gate usa entities unificados** — `pipeline.py:226-238` faz union de `_entities_llm` + `_entities_expansion` + `_entities_deterministic` em `all_entities`. Graph gate em `pipeline.py:241` usa `if all_entities:`. Se qualquer fonte encontra entity, graph roda.

- [x] **DoD 3: Normalização de entities do LLM** — `_normalize_entities()` em `retrieval_agent.py:309-350` normaliza entities contra schema_pairs. `_parse_plan()` recebe `schema_pairs` (linha 201) e chama normalização (linha 294-295). Testes: `TestNormalizeEntities` (6 testes) + `TestParsePlanNormalization` (2 testes).

- [x] **DoD 4: Trace registra fonte das entities** — `pipeline.py:292-307` trace step "retrieval" inclui `entities_unified` e `entities_sources: {llm, expansion, deterministic}`.

- [x] **DoD 5: Testes passam** — 352 passed (era 338+ no spec). Novos testes: 14 (6 resolve, 6 normalize, 2 parse_plan).

- [x] **DoD 6: Docs atualizados EN + PT-BR** — Seção "Hybrid Entity Resolution" adicionada em `docs/en/concepts/read-pipeline.md:60-72` e `docs/pt-BR/concepts/read-pipeline.md:60-72`. Explica 3 fontes, unificação, fault-tolerance, trace.

## Pattern Compliance

- [x] **Pipeline Orchestration** — `resolve_query_entities()` é chamado como sub-stage dentro do pipeline (pipeline.py:232). Fail-safe pattern seguido.
- [x] **Data Access** — Queries async via `select().where().limit()`. Sem savepoints (read-only). Sem commit. `asyncio.gather()` para paralelismo (query_expansion.py:320-325).
- [x] **Error Handling** — Fail-safe em 2 níveis: `resolve_query_entities()` wrappado em try/except retorna `[]` (query_expansion.py:297-301). Pipeline.py também tem try/except (linha 231-236).
- [x] **Testing** — Mock session com `AsyncMock` e `MagicMock`. `_mock_session_for_resolution()` helper pattern. Sem DB real.

## Convention Violations

Nenhuma.

## Budget

Files changed: 5 / ≤ 6 budget
1. `src/arandu/read/query_expansion.py` (modified)
2. `src/arandu/read/pipeline.py` (modified)
3. `src/arandu/read/retrieval_agent.py` (modified)
4. `tests/test_query_expansion.py` (modified)
5. `docs/en/concepts/read-pipeline.md` + `docs/pt-BR/concepts/read-pipeline.md` (modified)

## Anti-scope

- [x] `graph_retrieval.py` — não tocado
- [x] Write pipeline — não tocado
- [x] Embedding-based fuzzy matching — não adicionado
- [x] Interface pública — assinaturas mantidas
- [x] Entity disambiguation — não adicionado
- [x] Cache novo — não criado
- [x] Config defaults — nenhum novo parâmetro
