# Handoff Report — explorer_m5_3

## 1. Observation

Direct observations from files and tools in `/Users/sjkim1127/Reversecore_MCP`:

1. **File `tests/unit/tools/common/test_memory_tools.py`**:
   - Lines 13-24: The current `mock_store` fixture:
     ```python
     @pytest.fixture
     def mock_store(self):
         """Mock memory store."""
         store = MagicMock()
         store.initialize = AsyncMock()
         store.create_session = AsyncMock(return_value="session_123")
         store.save_memory = AsyncMock(return_value="memory_456")
         store.get_memories = AsyncMock(return_value=[{"content": "test"}])
         store.get_session = AsyncMock(return_value={"name": "test_session"})
         store.list_sessions = AsyncMock(return_value=[{"id": "session_123"}])
         store.recall_memories = AsyncMock(return_value=[{"content": "test"}])
         return store
     ```
   - Lines 102-106: The registration test checks count only:
     ```python
     def test_registration(self):
         mock_mcp = MagicMock()
         register_memory_tools(mock_mcp)
         # plugin.register calls mcp.tool() 11 times
         assert mock_mcp.tool.call_count == 11
     ```

2. **File `reversecore_mcp/tools/common/memory_tools.py`**:
   - Standard 11 memory tools registered: `create_memory_session`, `save_memory_item`, `recall_memory_item`, `list_memory_sessions`, `get_memory_session_detail`, `resume_memory_session`, `complete_memory_session`, `save_pattern`, `find_similar_patterns`, `get_relevant_context`, and `update_memory_session_time`.
   - Tool `resume_memory_session` at lines 280-292:
     ```python
     if session_id:
         session = await store.get_session(session_id)
     else:
         session = await store.find_latest_session(binary_name)
     ...
     await store.update_session(session["id"], status="in_progress")
     ```
     This indicates that both `get_session` and `find_latest_session` are expected to return dictionaries containing the key `"id"`. The current `get_session` mock returns `{"name": "test_session"}` (lacking `"id"`).

3. **File `reversecore_mcp/core/memory.py`**:
   - Line 30: `class MemoryStore:`
   - Contains definitions and signatures of all actual `MemoryStore` methods (e.g., `initialize`, `create_session`, `save_memory`, `recall_memories`, `list_sessions`, `get_session_context`, `get_session`, `find_latest_session`, `update_session`, `save_pattern`, `find_similar_patterns`, `get_relevant_context`).

4. **Pytest Coverage Result**:
   - Running `pytest tests/unit/tools/common/test_memory_tools.py` covers 51% of `reversecore_mcp/tools/common/memory_tools.py`, leaving the other 8 tools (and their corresponding memory store calls) completely untested.

---

## 2. Logic Chain

1. **Mapping Method Usage**: By tracing each of the 11 tools defined in `reversecore_mcp/tools/common/memory_tools.py` (Obs 2) down to their `store` calls (Obs 3), we identify that the following methods must be mocked: `initialize`, `create_session`, `save_memory`, `recall_memories`, `list_sessions`, `get_session_context`, `get_session`, `find_latest_session`, `update_session`, `save_pattern`, `find_similar_patterns`, and `get_relevant_context`.
2. **Mock Return Value Correction**: The current `get_session` mock returns `{"name": "test_session"}`. However, `resume_memory_session` accesses `session["id"]` (Obs 2). If left as is, any test for `resume_memory_session` would raise a `KeyError: 'id'`. Thus, the mock values for `get_session` and `find_latest_session` must be extended to include the `"id"` key.
3. **Mocking Missing Methods**: The 8 untested tools utilize methods not present in the current `mock_store` fixture (`get_session_context`, `find_latest_session`, `update_session`, `save_pattern`, `find_similar_patterns`, and `get_relevant_context`). Extending `mock_store` to include these mocks is necessary to allow writing unit tests for those tools.
4. **Improving Registration Tests**: The current registration test only verifies that the decorator `mcp.tool` is called exactly 11 times (Obs 1). Since there are 11 tools, the count matches. However, it does not confirm *which* tools were registered. Moving the `mock_mcp` fixture to module level allows checking that the exact set of expected tool names (matching the 11 tools) are registered.

---

## 3. Caveats

No caveats. All memory tools and their corresponding store methods were fully examined, and the test file was run successfully to ensure coverage findings are accurate.

---

## 4. Conclusion

To support unit testing for all 11 memory tools, the `mock_store` fixture must be extended to mock all 12 referenced methods of `MemoryStore`. In addition:
1. The return values of `get_session` and `find_latest_session` must contain the key `"id"` to prevent `KeyError` in `resume_memory_session`.
2. The registration tests should be updated to verify the actual tool names registered. This is done by moving `mock_mcp` to module-scope and asserting the keys of `mock_mcp.tools` match the expected set of memory tool names.

The detailed analysis, including signatures, expected arguments, mock values, and proposed implementation code has been written to:
`/Users/sjkim1127/Reversecore_MCP/.agents/explorer_m5_3/analysis.md`

---

## 5. Verification Method

To verify the findings and the proposed test updates independently:
1. Inspect the analysis report at `/Users/sjkim1127/Reversecore_MCP/.agents/explorer_m5_3/analysis.md`.
2. Apply the proposed fixture extension and updated registration test in `tests/unit/tools/common/test_memory_tools.py`.
3. Add basic unit test invocations for all other 8 tools (using the extended mocks).
4. Run the unit tests via `pytest tests/unit/tools/common/test_memory_tools.py -v`.
5. Check coverage using `pytest --cov=reversecore_mcp/tools/common/memory_tools tests/unit/tools/common/test_memory_tools.py --cov-report=term-missing` and verify that coverage increases from 51% to ~100%.
