Ln 620 Codebase Auditor

> **Paths:** File paths (`references/`, `../ln-*`) are relative to this skill directory.

**Type:** L2 Coordinator
**Category:** 6XX Audit

# Codebase Auditor

## Mandatory Read

**MANDATORY READ:** Load `references/evaluation_coordinator_runtime_contract.md`, `references/evaluation_summary_contract.md`, `references/evaluation_research_contract.md`
**MANDATORY READ:** Load `references/audit_final_report_contract.md`
**MANDATORY READ:** Load `references/codebase_audit_worker_boundaries.md`
**MANDATORY READ:** Load `references/research_tool_fallback.md`
Conditional read: load `references/epistemic_protocol.md` only when source confidence or claim uncertainty affects issue validation.

## Purpose

- audit runtime/codebase risks: security, delivery gates, dependency/reuse health, maintainability, dead code, diagnosability, concurrency, lifecycle, and config validation
- coordinate exactly `ln-621` through `ln-629`
- require stack-aware research before scoring

## Runtime Contract

Runtime family:
- `evaluation-runtime`

Identifier:
- `codebase-audit`

Phase order:
1. `PHASE_0_CONFIG`
2. `PHASE_1_DISCOVERY`
3. `PHASE_2_RESEARCH`
4. `PHASE_3_DELEGATE`
5. `PHASE_4_AGGREGATE`
6. `PHASE_5_REPORT`
7. `PHASE_6_SELF_CHECK`

## Worker Set

- `ln-621-security-boundary-auditor`
- `ln-622-build-delivery-gate-auditor`
- `ln-623-duplication-overabstraction-auditor`
- `ln-624-code-maintainability-hotspot-auditor`
- `ln-625-dependency-reuse-auditor`
- `ln-626-dead-code-pruning-auditor`
- `ln-627-diagnosability-auditor`
- `ln-628-concurrency-correctness-auditor`
- `ln-629-runtime-lifecycle-config-auditor`