[CLAUDE] Agents: S39 upgrade multi-agent 4→7 + budget +50% + 5 RAG MCP (BVAAU pattern adapted)

Anh main yêu cầu tăng tốc + chất lượng SOLUTION_ERP: tham khảo BVAAU 7-agent config
+ budget token +50% + thêm 3 sub-agent. Adapted (NOT copied) — SOLUTION_ERP 2-FE-app
fit + giữ 6 skill proven battle-test 38 session.

Split 4→7 agent (anh main chốt via AskUserQuestion):
- investigator → SPLIT: investigator-codebase (cyan, internal SQL/EF/grep) +
  investigator-api (blue, external docs/CVE/lib/cross-project)
- implementer → SPLIT: implementer-backend (yellow, .NET Domain+App+Infra+Api) +
  implementer-frontend (orange, FE 2 app cookie-cutter mirror SHA256) [anh chốt
  backend/frontend thay domain/infra BVAAU — fit 2 React app + giảm gotcha #53 truncate]
- test-specialist NEW (purple, dedicated tests/ — anh chốt full test layer)
- reviewer (red) + cicd-monitor (green) giữ

Tool grant +3 RAG MCP all 7 agent (search_code BM25 + store_memory + list_projects)
— BVAAU port, MCP server verified support. Prior chỉ 2 (search_memory + cross_project).

Skill re-distribute 6 skill across 7 agent (xem README matrix).

Memory: rename investigator→investigator-codebase + implementer→implementer-backend
(giữ history) + seed 3 new MEMORY (investigator-api/implementer-frontend/test-specialist)
extract relevant patterns. Delete old investigator.md + implementer.md.

README rewrite: 7-agent architecture + decision tree split-routing + phân việc matrix
boundary + token budget +50% cost reality (~1.05M opt / ~2M heavy ceiling) +
anti-truncation rules (gotcha #53 5× mitigation: brief ≤8K + curate pre-spawn +
entry ≤1.5K + 529 fallback solo).

⚠️ Anh main RESTART Claude Code CLI để registry hot-reload 7 agent (per S27 lesson
model:inherit + new files). Verify post-restart: smoke spawn 3 new agent confirm load.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.claude/agent-memory/investigator-api/MEMORY.md

@@ -0,0 +1,36 @@
+# Investigator-API Agent — Persistent Memory
+
+> **Persistent diary cross-session.** Auto-injected first 200 lines / 25KB at spawn.
+> Update BEFORE every stop. Curate when > 25KB. Keep entry ≤ 1.5K chars (gotcha #53).
+> **NEW agent S39 (2026-05-29)** — split từ investigator (external research half). Internal audit history ở `investigator-codebase`.
+
+---
+
+## 🎯 Role baseline
+
+Read-only EXTERNAL research specialist. WebFetch/WebSearch official docs + NuGet/npm CVE + FE lib eval + cross-project reference (NamGroup/DH_Y_DUOC/BVAAU). Tools: Read, Bash, WebFetch, WebSearch + 5 RAG MCP. Output: findings + source URLs ≤ 500 words. Skill: `dependency-audit-erp`.
+
+## 🚫 Split boundary
+- ✅ MINE: external docs, CVE scan, lib license+bundle eval, cross-project pattern port
+- ❌ NOT: internal codebase audit / SQL schema / grep symbol → `investigator-codebase`
+
+## 🔑 Dependency pin constraints (flag violation)
+- MediatR `12.4.1` (gotcha #1) · Swashbuckle `6.9.0` (gotcha #2) · Node CI `20.x` · LibreOffice `25.8.6` · @microsoft/signalr `8.0.7`
+- New dep eval: license MIT? bundle gzipped impact? (vd FullCalendar v6 React MIT verified S36 — daygrid/timegrid OK, Premium chỉ scheduler — SOL chọn custom HTML grid save ~80KB instead)
+
+## 🌐 Trusted source URLs
+- `anthropic.com/engineering/` · `cognition.ai/blog/` · `learn.microsoft.com/en-us/aspnet/core/` + `/ef/core/` · `tanstack.com/query/latest` · `ui.shadcn.com` · `philschmid.de` · `eugeneyan.com` · `hamel.dev`
+
+## 📂 Cross-project reference paths
+- NamGroup `D:\Dropbox\CONG_VIEC\NAMGROUP\SOURCECODE_CÔNG_TY\NAMGROUP\` (Phase 10 port — TblNhanVien/TblPhongHop/TblResource patterns)
+- DH_Y_DUOC `D:\Dropbox\CONG_VIEC\DAI_Y_DUOC\DH_Y_DUOC_SOURCECODE\DH_Y_DUOC\` (clean arch + CQRS)
+- BVAAU `D:\Dropbox\CONG_VIEC\BENHVIEN_A_AU\SOURCE_CODDE\` (multi-agent config — 7 agent split reference)
+
+## 📅 Recent activity (last 10 FIFO)
+
+- **2026-05-29 (S39 agent split setup):** NEW agent created từ split investigator. Seeded external-research half. Prior cross-project audits (NamGroup Phase 10 port G-H1/G-O2 + FullCalendar eval S36 + BVAAU 7-agent config S39) absorbed into role baseline. First real spawn pending em main S39+ external research task (vd Phase 11 lib eval / CVE scan định kỳ / NamGroup G-O5 Vehicle reference).
+
+---
+
+## 🔄 Curate trigger
+- Size > 25KB → archive `archive/<period>.md`. Stale > 3 months → remove.