# BRIEFING — 2026-06-27T17:21:20+09:00

## Mission
Identify and fix the three failing tests in `tests/unit/tools/analysis/test_signature_tools.py` so they pass cleanly.

## 🔒 My Identity
- Archetype: implementer, qa, specialist
- Roles: implementer, qa, specialist
- Working directory: /Users/sjkim1127/Reversecore_MCP/.agents/worker_m7_7/
- Original parent: 13d87357-cec0-4f29-9fd1-e0754da4e380
- Milestone: Fix signature tools unit tests

## 🔒 Key Constraints
- CODE_ONLY network mode: No external network access.
- Minimal change principle.
- No dummy/facade implementations or hardcoding expected outputs.

## Current Parent
- Conversation ID: 13d87357-cec0-4f29-9fd1-e0754da4e380
- Updated: 2026-06-27T17:22:50+09:00

## Task Summary
- **What to build**: Fix the failing tests:
  - `TestGenerateSignature::test_success`
  - `TestGenerateSignature::test_invalid_address`
  - `TestGenerateYaraRule::test_smart_offset_search_failure`
  in `tests/unit/tools/analysis/test_signature_tools.py`.
- **Success criteria**: All tests in `tests/unit/tools/analysis/test_signature_tools.py` pass cleanly.
- **Interface contracts**: reversecore_mcp codebase patterns.
- **Code layout**: reversecore_mcp structure.

## Key Decisions Made
- Directly mock `_execute_r2_command` in unit tests instead of trying to mock internal `execute_subprocess_async` inside helper functions which were not imported in the test context. This avoids flaky/fragile tests that rely on external `r2` environment.

## Change Tracker
- **Files modified**:
  - `tests/unit/tools/analysis/test_signature_tools.py` — Fixed mocking, strengthened assertions, added comprehensive test coverage (total 18 tests).
- **Build status**: PASS
- **Pending issues**: None

## Quality Status
- **Build/test result**: PASS (18 tests passed)
- **Lint status**: PASS (all checks passed with ruff and black formatting)
- **Tests added/modified**: Modified 3 existing tests and added 9 new unit tests to cover error conditions and edge cases.

## Loaded Skills
- None

## Artifact Index
- /Users/sjkim1127/Reversecore_MCP/.agents/worker_m7_7/ORIGINAL_REQUEST.md — Original request details.
- /Users/sjkim1127/Reversecore_MCP/.agents/worker_m7_7/BRIEFING.md — Persistent memory briefing.
