# BRIEFING — 2026-06-27T12:22:00+09:00

## Mission
Analyze test coverage gaps for reversecore_mcp/tools/common/assembler.py and recommend a strategy to achieve 100% test coverage.

## 🔒 My Identity
- Archetype: Teamwork explorer
- Roles: Read-only investigation: analyze problems, synthesize findings, produce structured reports
- Working directory: /Users/sjkim1127/Reversecore_MCP/.agents/explorer_m7_1_1/
- Original parent: 13d87357-cec0-4f29-9fd1-e0754da4e380
- Milestone: Assembler Test Coverage

## 🔒 Key Constraints
- Read-only investigation — do NOT implement
- CODE_ONLY network mode: no external HTTP clients

## Current Parent
- Conversation ID: 13d87357-cec0-4f29-9fd1-e0754da4e380
- Updated: not yet

## Investigation State
- **Explored paths**:
  - `reversecore_mcp/tools/common/assembler.py`
  - `tests/unit/tools/common/test_assembler.py`
- **Key findings**:
  - Code coverage of `assembler.py` is currently at 57%.
  - Uncovered lines fall into 4 groups: library import fallbacks, untested architecture/mode parameters, Keystone initialization/compilation exceptions, and Capstone verification warnings.
  - A total of 12 new test cases/matrices were designed and documented to cover all gaps.
- **Unexplored areas**: None.

## Key Decisions Made
- Recommended using dynamic reload (`importlib.reload`) with `sys.modules` patching for testing import failures.
- Formulated parametrized test tables for the architectures to ensure exhaustiveness.

## Artifact Index
- /Users/sjkim1127/Reversecore_MCP/.agents/explorer_m7_1_1/analysis.md — Final analysis report
- /Users/sjkim1127/Reversecore_MCP/.agents/explorer_m7_1_1/handoff.md — Handoff report
