# BRIEFING — 2026-10-05T20:33:00Z

## Mission
Survey & deep knowledge extraction across 5 Core DSCons Documentation Areas (Root Standards, Backend & DB, Frontend, AEC & BoQ Business Domain, Testing & Workflow).

## 🔒 My Identity
- Archetype: explorer
- Roles: investigation, synthesis
- Working directory: c:\Projects\DSCons\.agents\teamwork\teamwork_preview_explorer_survey_2
- Original parent: 2c75583f-c14a-419c-82d2-6487ff809fec
- Milestone: survey-knowledge-extraction

## 🔒 Key Constraints
- Read-only investigation — do NOT implement or modify source code
- Strictly write only within working directory c:\Projects\DSCons\.agents\teamwork\teamwork_preview_explorer_survey_2
- Follow the 5-component handoff report structure (Observation, Logic Chain, Caveats, Conclusion, Verification Method)
- Communicate completion to parent via send_message with handoff.md path

## Current Parent
- Conversation ID: 2c75583f-c14a-419c-82d2-6487ff809fec
- Updated: not yet

## Investigation State
- **Explored paths**:
  - `c:\Projects\DSCons\.agents\teamwork\ORIGINAL_REQUEST.md` (Section: ## 2026-10-05T20:25:13Z)
  - `c:\Projects\DSCons\.agents\AGENTS.md`
  - `c:\Projects\DSCons\GEMINI.md`
  - `c:\Projects\DSCons\.agents\skills\backend-clean-architecture\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\backend-patterns\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\coding-standards\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\enterprise-ui-darkslate\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\frontend-patterns\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\aec-cad-takeoff\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\aec-pricing-norms\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\tdd-workflow\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\workflow-plan-task-test-report\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\verification-loop\SKILL.md`
  - `c:\Projects\DSCons\.agents\skills\eval-harness\SKILL.md`
- **Key findings**:
  - Root: 7 Core Non-Negotiable Laws; Zero-Synthetic Data (MST: 0202111150); 5 Sub-Agents; Mandatory MCP tool matrix.
  - Backend/DB: Hexagonal 4 layers; Presentation cấm SQL/DDL; Application cấm HTTP clients & LLM API; NUMERIC(18,4) & Decimal; Double-entry ledger; Strict test teardown; Mandatory `/v1/erp` prefix.
  - Frontend: Dark Slate theme (#0b0f19, #111827, #1e293b); Inter + JetBrains Mono; Bloomberg density; Zero Occlusion (sidebar 260px/72px); Toast Anti-Flood; Cache buster.
  - AEC/BoQ: 4 Pillars of Dinh Son (Pillars 2, 3, 4 cấm gộp thành dự án XD); Law 2025/Norms 2026; Larsen pile TT38 VL=0; Budget sanity check 40%-65% MR/T; 4-tier budgeting; Unit guard & negative keywords for steel; Direct-to-site accounting TK 621; TCVN3/VnTime byte decoding; 1px vector stroke; Zero-Void Bounding Box; Renovation Chương SA/AA VL=0; Local deterministic takeoff engine.
  - Testing/Workflow: TDD >=80% coverage; Deep Matrix D1-D6 with timestamps; Anti-synthetic scaffolding; 6-Phase Verification Loop; EDD with pass@k / pass^k.
  - Fact Catalog: 25 structured atomic facts ready for Mem0 ingestion.
- **Unexplored areas**: None within the 5 core assigned areas.

## Key Decisions Made
- Fully documented findings in `analysis.md` and synthesized into a self-contained 5-component `handoff.md`.
- Distilled 25 atomic facts categorized by area to enable immediate `mem0_add` ingestion by downstream agents.

## Artifact Index
- DISPATCH.md — Dispatch log from parent
- BRIEFING.md — Persistent situational awareness index
- progress.md — Liveness heartbeat and milestone tracker
- analysis.md — Comprehensive extraction and synthesis across all 5 areas (8 sections)
- handoff.md — 5-component self-contained handoff report