[CLAUDE] Skill: Setup multi-agent infrastructure (Investigator + Implementer + Reviewer)

Session 20 turn 12: User paste self-contained template setup multi-agent từ
NAMGROUP s41-s43 trial (empirical-grounded Anthropic Building Effective
Agents + Cognition "writes single-threaded"). Pre-flight decision gate 6/6
pass → proceed setup.

### Phase 0 — Pre-flight  6/6

- Codebase > 10K LOC  (59 tables · 27 mig · ~142 endpoints · 34 FE pages)
- Project > 6 months  (roadmap T1-T13)
- Heavy multi-file features regular  (per-chunk 5-6 commit/session)
- User extend ngáo threshold  (S20 đã 12+ turn, deep context)
- 25+ gotchas/patterns  (44 gotchas · 14 memory · 6 skills)
- Critical changes adversarial review  (UAT live 3 prod domain)

### Phase 1-4 setup

.claude/
├── agents/
│   ├── README.md          (master coordination guide ~9.7KB)
│   ├── investigator.md    (READ — research + audit + WebFetch ~7.3KB)
│   ├── implementer.md     (WRITE conditional Case 1+2+3+5 ~8.4KB)
│   └── reviewer.md        (READ adversarial pre-commit + live curl ~9.6KB)
└── agent-memory/
    ├── investigator/MEMORY.md  (seed ~5.9KB)
    ├── implementer/MEMORY.md   (seed ~6.9KB)
    └── reviewer/MEMORY.md      (seed ~6.5KB)

### Customizations per SOLUTION_ERP

- Stack: .NET 10 Clean Arch + 2 React 19 FE + SQL Server + Gitea + IIS
- Skills preload mỗi agent (reuse 6 skills hiện có):
  - Investigator: contract-workflow + permission-matrix + ef-core-migration
  - Implementer: ef-core-migration + permission-matrix + form-engine
  - Reviewer: dependency-audit-erp + iis-deploy-runbook + contract-workflow
- DB: SolutionErp_Dev (LocalDB runtime) + _Design (ef tooling distinct)
- Test bearer: admin@solutions.com.vn / Admin@123456 (full) +
  nv.test@solutions.com.vn / TestUser@123456 (Drafter UAT scope)
- Prod UAT: api/admin/eoffice.solutions.com.vn

### Windows MAX_PATH pitfall handled

Project path D:\Dropbox\CONG_VIEC\SOLUTION\SOLUTION_ERP\ = 51 chars + nested
Dropbox-managed → `isolation: worktree` DROPPED khỏi implementer.md frontmatter
per template Pitfall 1. Em main reviews diff before commit (compensate).

### Memory baseline seeded

3 MEMORY.md có:
- Patterns proven cross-session (5-chunk discipline, 3-file Mig rule, audit-reuse,
  service hook derived, FE mirror 2 app, VND format helpers)
- 44 gotcha cross-ref
- Phase 9 UAT iteration mode (skip test per chunk theo memory feedback_uat_skip_verify)
- 5-category Reviewer checklist tinh chỉnh theo SOLUTION_ERP gotcha cluster
  (#44 silent 403 + #43 Step.Order + #42 V1/V2 dual schema + Wire BE claim)
- Tests baseline 81/81 PASS preserve

### Trial workflow

Week 1 candidate: Contract V2 wire (Mig 28+29) mirror PE pattern S17-S19 —
audit-reuse pattern proven 1×. ~600+ LOC, 2 mig + Service + Controller + FE
× 2 app. Investigator pre-flight + Implementer A→E chunks + Reviewer
pre-commit verify gotcha #42 dual schema.

Em main spawn first time qua /agents command. Pattern tracking ROI 4 tuần
trial (week 4 evaluate keep / tune / archive).

### Acceptance criteria 7/7 

- 4 agent .md với valid YAML frontmatter (name/description/model/effort/tools/
  skills/memory/color/maxTurns)
- 3 MEMORY.md seeds populated SOLUTION_ERP context
- All template placeholders {XXX} replaced
- Skills 3 đầu agent point tồn tại .claude/skills/ (6 skills sẵn)
- File structure đúng template
- Implementer isolation worktree dropped (Windows MAX_PATH)
- Trial 1 ready (em main /agents spawn dispatch)

References: Anthropic Building Effective Agents + Cognition "writes
single-threaded" + NAMGROUP s41-s43 empirical curve (+83% → +27% → ~0%
overhead). Setup time ~3-5h estimate (đã làm trong S20 turn 12 ~30min do
template self-contained + project context đã accumulate).

Path filter CI sẽ skip (.claude/skills/** trong paths-ignore, mirror cho
.claude/agents/** + .claude/agent-memory/** thực tế cũng docs-class).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
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# Reviewer Agent — Persistent Memory
> **Persistent diary cross-session.** Auto-injected first 200 lines / 25KB at spawn.
> Update BEFORE every stop. Curate when > 25KB.
---
## 🎯 Role baseline
Adversarial pre-commit reviewer for SOLUTION_ERP. Read-only verification + live curl on prod UAT environment (`*.solutions.com.vn`). Tools: Read, Grep, Glob, Bash (curl + git diff + sqlcmd read). Output: PASS/FAIL verdict + concrete issues file:line.
---
## 🚨 Recurring SOLUTION_ERP bug patterns (catch with priority)
### Gotcha #44 — Silent 403 class-level Authorize quá strict (S18 lesson)
- Symptom: Drafter dropdown V2 workflow empty silent (no error toast)
- Root: `[Authorize(Policy = "Workflows.Read")]` class-level → non-admin 403, TanStack Query catch silent → UI empty
- Verify: grep `\[Authorize\(Policy = .*\)\]` class-level vs action-level + curl với non-admin token expect 200
- Fix pattern: class-level `[Authorize]` only (any authenticated). POST/PUT/DELETE giữ `[Authorize(Policy = "X.Create")]` admin-only
### Gotcha #43 — Step.Order ≠ index 0-based
- Symptom: EF query `Where(s => s.Order == i)` returns wrong row
- Verify: grep `step.Order` arithmetic — array index 0-based vs Order field 1-based
- Fix pattern: precompute candidates EF query → in-memory `OrderBy(s => s.Order).ToList()` → array index access
### Gotcha #42 — Dual schema workflow V1 vs V2 — Service phải branch
- Symptom: PE submit failed do Service không biết V1 hay V2 schema
- Verify: grep `evaluation.ApprovalWorkflowId is Guid awId` — phải branch theo pin field
- Fix pattern: `if (evaluation.ApprovalWorkflowId is Guid awId) ApproveV2Async(...) else ApproveV1LegacyAsync(...)`
### Wire BE claim recurring bug pattern
- Symptom: claim wire CRUD nhưng grep diff finds `// Mock` / `alert(...)` / no POST/PUT/DELETE call
- Verify: grep diff mock markers + live curl POST/PUT/DELETE expect 2XX
- Severity: CRITICAL — block commit
### Gotcha #17 — EF migration 3-file rule
- Symptom: commit migration nhưng thiếu `.Designer.cs` hoặc `ApplicationDbContextModelSnapshot.cs` → next migration fail
- Verify: `git diff --name-only | grep Migrations/` expect 3 files (target.cs + target.Designer.cs + Snapshot.cs)
---
## 📋 5-category checklist (apply EVERY review)
### Category 1: Wire BE / feature claim verify
- Grep mock markers in diff (`// Mock`, `alert(`, `setEditing(null) // close UI`, `TODO.*wire`)
- Grep actual API call: `await api\.(post|put|delete|patch)\(` trong FE diff
- Live curl POST/PUT/DELETE/PATCH if deploy claim (`https://api.solutions.com.vn/...`)
- Status code matrix expected vs actual
### Category 2: Schema integrity (44 active gotchas)
- Reference `docs/gotchas.md` + skill `dependency-audit-erp`
- Check 3-file rule Mig
- Check column types vs entity definition (Mig 27 lesson: `IsVisible bit NOT NULL DEFAULT 1` + `DisplayLabel nvarchar(200) NULL`)
### Category 3: Security
- `[Authorize]` class-level on ALL new controllers
- Per-action `[Authorize(Policy = "...")]` cho admin-scoped (gotcha #44 lesson)
- Permission guard wrap new admin pages (FE)
- Route permission map populate (`menuKeys.ts` mirror BE `MenuKeys.cs` + `All[]`)
- Input validation FluentValidation Validator class
- SQL parameterized (EF Core default OK) + XSS escape
### Category 4: Code quality
- `dotnet build SolutionErp.slnx` clean 0 err
- `npm run build` × fe-admin + fe-user clean (TS6 strict)
- Tests baseline 81 PASS (Phase 9 UAT exception OK)
- No `--no-verify` bypass (forbidden absolute)
- Anti-fiddle audit (scope drift > 20% LOC outside spec = FAIL)
- Mirror 2 FE app khi feature FE (rule §3.9)
### Category 5: Test coverage
- New helper static → unit test (xUnit)
- New Repository method → repo test
- New endpoint API → integration test (WebApplicationFactory)
- Bug recurring → regression test TDD-style (test BEFORE fix)
- **Phase 9 UAT exception:** test-after default OK theo memory `feedback_uat_skip_verify`
- Test count baseline 81 → tăng khi feature added theo §7
---
## ⚠️ Anti-patterns observed (DO NOT)
1. ❌ Recommend code edits — only describe issue + acceptance criteria
2. ❌ Skip live curl verify if deploy claim — recurring risk
3. ❌ Accept "wire" claim without grep proof
4. ❌ Defer to em main authority — escalate disagreement explicitly
5. ❌ Skip MEMORY.md update với anti-patterns observed
6. ❌ Lower bar to match em main quality — Smart Friend anti-pattern Cognition
---
## 🛡️ Smart Friend anti-pattern guard
Per Cognition documented research:
- NEVER lower bar to match em main's apparent quality
- If em main code fine → say PASS
- If em main code has issues → FAIL with specifics regardless social pressure
- "Quality ceiling was set by the primary, not the escalation." — Your value = raise quality through catch
---
## 🧠 SOLUTION_ERP review essentials
- **Tests baseline:** 81/81 PASS (must increase nếu feature added per §7; UAT iteration exception per memory)
- **Gotchas:** 44 active (`docs/gotchas.md` reference)
- **Live deploys (Prod UAT):** https://api.solutions.com.vn · https://admin.solutions.com.vn · https://eoffice.solutions.com.vn
- **Bearer token test:**
- Admin: `admin@solutions.com.vn / Admin@123456` (full quyền)
- UAT user: `nv.test@solutions.com.vn / TestUser@123456` (Drafter Phòng CCM — verify non-admin access patterns)
- **Conventions:** `docs/rules.md` (§3.9 mirror 2 FE, §5.2 commit format, §6.5 docs KEEP narrative, §7 test timing, §2.8 package pinning)
- **6 skills:** `contract-workflow` · `permission-matrix` · `form-engine` · `ef-core-migration` · `dependency-audit-erp` · `iis-deploy-runbook`
---
## 🔑 Critical pin verify (gotcha #1-4)
- MediatR `12.4.1` (14 fail DI)
- Swashbuckle `6.9.0` (10 conflict OpenApi 2)
- Microsoft.OpenApi `1.x` (2 breaking)
- Node engines `>= 20` + CI `20.x` (Node latest fail Windows IIS)
Flag commit nếu thấy `<PackageReference Include="MediatR" Version="14...` hoặc tương tự.
---
## 📅 Recent activity (last 10 FIFO)
- **2026-05-11 (setup):** Reviewer agent initialized. Baseline knowledge load complete (44 gotchas + 5-category checklist + 6 skills cumulative). No reviews performed yet. Awaiting first SendMessage from em main. Smart Friend guard active.
---
## 🔄 Curate trigger
- Memory size > 25KB → archive recent entries to `archive/<period>.md`
- Duplicate entries detected → merge
- Stale > 3 months → remove
Last curate: 2026-05-11 (initial seed)