# BRIEFING — 2026-10-05T20:49:00Z

## Mission
Milestone 1 — Selective Cleanup in Mem0: Verify initial count 480, selectively delete exactly 31 obsolete DSCons memory entries, verify new count is 449, verify DSCons legacy memories are zeroed out, and verify non-DSCons memories remain 100% intact.

## 🔒 My Identity
- Archetype: implementer / qa / specialist
- Roles: implementer, qa, specialist
- Working directory: c:\Projects\DSCons\.agents\teamwork\teamwork_preview_worker_m1
- Original parent: 2c75583f-c14a-419c-82d2-6487ff809fec
- Milestone: Milestone 1 — Selective Cleanup in Mem0

## 🔒 Key Constraints
- DO NOT CHEAT. All implementations must be genuine.
- DO NOT hardcode test results, create dummy/facade implementations, or circumvent the intended task.
- Target EXACTLY the 31 obsolete DSCons memory UUIDs identified in Explorer 1's report.
- Preserve all non-DSCons entries (FreeExile, preferences, coding styles, etc.) 100% intact.
- Verify status, count, and search results genuinely before completing.
- Write handoff.md with 5 components: Observation, Logic Chain, Caveats, Conclusion, Verification Method.

## Current Parent
- Conversation ID: 2c75583f-c14a-419c-82d2-6487ff809fec
- Updated: 2026-10-05T20:49:00Z

## Task Summary
- **What to build**: Selective memory deletion and verification in local Mem0 service.
- **Success criteria**: 31 obsolete DSCons entries deleted; Mem0 developer count drops from 480 to 449; 0 DSCons legacy entries returned on search; non-DSCons entries preserved.
- **Interface contracts**: PROJECT.md / Mem0 FastMCP SSE / mem0 tools.
- **Code layout**: .agents/teamwork/teamwork_preview_worker_m1/

## Key Decisions Made
- Confirmed initial `developer_memories_count` = 480.
- Executed exact deletion of all 31 obsolete DSCons UUIDs via FastMCP `mem0_delete` on `http://127.0.0.1:8765/sse`.
- Verified post-cleanup count is exactly 449 via `mem0_status`.
- Verified non-existence of all 31 deleted UUIDs (each returns "not found" on delete attempt).
- Verified zero legacy DSCons memories on semantic search (`query="DSCons"`).
- Verified 100% intact preservation of non-DSCons memories (FreeExile, developer preferences, VoLamWeb 0 VND budget).
- Created regression test `tests/test_mem0_m1_selective_cleanup.py` (5/5 PASSED).

## Change Tracker
- **Files modified**: `tests/test_mem0_m1_selective_cleanup.py` (created automated regression suite)
- **Build status**: 5/5 pytest tests passed in 3.41s
- **Pending issues**: None

## Quality Status
- **Build/test result**: 5 passed, 0 failed
- **Lint status**: Clean
- **Tests added/modified**: `tests/test_mem0_m1_selective_cleanup.py`

## Loaded Skills
- None

## Artifact Index
- DISPATCH.md — Parent assignment
- BRIEFING.md — Persistent situational awareness
- progress.md — Heartbeat and progress log
- handoff.md — 5-component handoff report
- tests/test_mem0_m1_selective_cleanup.py — Automated regression suite