# Investigator Agent — Persistent Memory

> **Persistent diary cross-session.** Auto-injected first 200 lines / 25KB at spawn.
> Update BEFORE every stop. Curate when > 25KB.

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## 🎯 Role baseline

Read-only research + audit for SOLUTION_ERP codebase. Tools: Read, Grep, Glob, Bash, WebFetch, WebSearch. Output: concise structured findings under 500 words.

---

## 📋 Patterns proven (cross-session)

### Pattern: Smoke verify catalog SOLUTION_ERP
- Bearer auth từ `https://api.solutions.com.vn/api/auth/login` (POST email + password)
- Status code matrix expected vs actual + JSON output + MD audit
- Test credentials: `admin@solutions.com.vn / Admin@123456` (full) OR `nv.test@solutions.com.vn / TestUser@123456` (Drafter UAT scope)

### Pattern: Schema scan via sqlcmd
```bash
# LocalDB Dev (runtime — primary)
sqlcmd -S "(localdb)\MSSQLLocalDB" -d SolutionErp_Dev -Q "..."

# LocalDB Design (ef tooling)
sqlcmd -S "(localdb)\MSSQLLocalDB" -d SolutionErp_Design -Q "..."

# Production (qua SSH vietreport-vps)
ssh vietreport-vps "sqlcmd -S .\SQLEXPRESS -d SolutionErp -U vrapp -P '...' -Q '...'"
```
Common queries: `sys.columns`, `sys.triggers`, `__EFMigrationsHistory`, `COUNT(*)`, `sys.indexes`.

**Gotcha:** 2 LocalDB distinct (memory `feedback_designtime_runtime_db`):
- `_Dev` — runtime API (appsettings.Development.json ConnectionStrings:Default)
- `_Design` — `dotnet ef migrations add/update` default target
- Use `--connection "Server=(localdb)\MSSQLLocalDB;Database=SolutionErp_Dev;..."` override khi cần Dev specifically.

### Pattern: Controller audit
- Grep `\[Route\("api/[a-z]+"\)\]` enumerate ~30+ controllers
- Grep `\[Authorize(Policy = "..."` audit per-action policy (gotcha #44 silent 403 class-level quá strict)
- Grep `IActionResult` vs `ActionResult<T>` — typed return preferred
- Grep `// Mock` / `alert(` / `setEditing(null) // close UI` — wire claim bugs

### Pattern: Memory cross-reference
19 memory entries tại `C:\Users\pqhuy\.claude\projects\D--Dropbox-CONG-VIEC-SOLUTION\memory\` (S20 +2 turn 11/12, S21 +2 turn 5):
- `MEMORY.md` — index
- `project_solution_erp.md` — cumulative narrative S1-S17
- `feedback_per_chunk_commit.md` — 5-chunk A-E discipline
- `feedback_uat_skip_verify.md` — Phase 9 skip test rule
- `feedback_drastic_refactor_scope.md` — defer dedicated session
- `feedback_audit_reuse_before_clone.md` — audit-first pattern (Investigator natural fit)
- `feedback_service_hook_vs_endpoint.md` — derived state hook pattern
- `feedback_n_stage_workflow_pattern.md` — DEPRECATED (Mig 21 flat workflow replaced)
- `feedback_designtime_runtime_db.md` — 2 LocalDB distinct
- `feedback_md_compact_narrative.md` — §6.5 KEEP narrative rule
- `feedback_unittest_timing.md` — §7 test timing
- `feedback_cron_monthly_limitation.md` — Cron SDK 7-day expire
- `feedback_user_manual_style.md` — non-tech docs style
- `feedback_node_cicd.md` — Node 20.x pin
- `feedback_responsive_laptop_breakpoint.md` — 4-tầng responsive pattern (S20 t11)
- `feedback_multi_agent_setup.md` — 4 sub-agents setup discipline (S20 t12 init 3 + S21 t1 +cicd-monitor)
- `feedback_rag_hybrid_pattern.md` — RAG Hybrid Cách A planning (S21 t2, 5 dự án future)
- `feedback_ef_migration_backfill_reorder.md` — ADD→BACKFILL SQL→DROP manual reorder (S21 t5 Mig 29)
- `feedback_per_nv_permission_scope.md` — Multi-role flag split scope per role (Approver Level vs Drafter User), S21 t4→t5 refactor
- `reference_session_prompts.md` — canonical session start template

### Pattern: External research priority sources
- `anthropic.com/engineering/` (official patterns)
- `cognition.ai/blog/` (Devin lessons)
- `philschmid.de` + `eugeneyan.com` + `hamel.dev` (senior engineers)
- `learn.microsoft.com/en-us/aspnet/core/` (.NET 10 official)
- `tanstack.com/query/latest` (TanStack Query)

---

## ⚠️ Anti-patterns observed

- ❌ Skip MEMORY.md update before stop — lose knowledge tài sản
- ❌ Vague conclusion "seems like" / "probably" — em main rejects
- ❌ Missing file:line refs — non-verifiable evidence
- ❌ Exceed 500 words — em main reads too slow
- ❌ Scope drift to architectural recommendations — em main decides, not me

---

## 🧠 SOLUTION_ERP context essentials (auto-load)

- **DB Dev:** `SolutionErp_Dev` LocalDB (59 tables / 29 migrations / Mig 29 latest `RefactorAdvancedOptionsToPerLevelAndDrafterUser`)
- **DB Design:** `SolutionErp_Design` (ef tooling distinct)
- **DB Prod:** `.\SQLEXPRESS` / `SolutionErp` / `vrapp` user via SSH `vietreport-vps` (fallback `C:\inetpub\solution-erp\api\appsettings.Production.json` khi `$env:PROD_DB_PASSWORD` empty — CICD Monitor discovery S21 t5)
- **Tech stack:** .NET 10 Clean Arch (Api → Application ← Domain + Infra) + CQRS MediatR + EF Core 10 + 2 React 19 Vite 8 TS 6 (fe-admin :8082 + fe-user :8080) + SQL Server + Gitea Actions CI + IIS prod
- **Live deploys (Prod UAT):** https://api.solutions.com.vn · https://admin.solutions.com.vn · https://eoffice.solutions.com.vn
- **Gitea remote:** https://git.baocaogiaoduc.vn/vietreport-admin/solution-erp
- **Gitea Actions API:** path `/api/v1/repos/.../actions/tasks` (NOT `/actions/runs` — 404). Cache stale ~2 min (gotcha #46) — cross-check VPS file mtime
- **SSH VPS:** `ssh vietreport-vps` (config `~/.ssh/config` user=Administrator key=id_ed25519)
- **Gotchas active:** 46 (reference `docs/gotchas.md`)
- **Tests baseline:** 84 PASS (58 Domain + 26 Infra) — Phase 9 UAT skip per chunk (memory `feedback_uat_skip_verify`)
- **Master HEAD reference:** check via `git log -1 --format='%H'`
- **6 skills:** `contract-workflow` · `permission-matrix` · `form-engine` · `ef-core-migration` · `dependency-audit-erp` · `iis-deploy-runbook`

---

## 🔄 Active workflow schemas (V1 + V2 coexist post-Session 17)

- **V1 Mig 21 flat workflow** — `WorkflowDefinition` pin với PE/Contract cũ. Match Dept+PositionLevel.
- **V2 Mig 22-29** — `ApprovalWorkflow` pin với PE mới + match `ApproverUserId` 1-1 OR-of-N cùng Cấp. Steps (Phòng) > Levels (Cấp). PE đã wire V2. Contract V2 PENDING (Plan B).
  - **Mig 25** IsUserSelectable (admin pin/unpin per workflow cho user pick)
  - **Mig 26** PE Level Opinions UPSERT (service hook khi Duyệt)
  - **Mig 28** (S21 t4) 6 Allow* workflow-level — **REPLACED by Mig 29**
  - **Mig 29** (S21 t5) Allow* refactor per-NV: 5 flag on `ApprovalWorkflowLevels` (F1+F3 per Approver slot) + 1 flag on `Users.AllowDrafterSkipToFinal` (F2 per Drafter)

State machine 5 trạng thái phiếu PE: Nháp / Đã gửi duyệt / **Trả lại (TraLai=98)** / Từ chối / Đã duyệt.

**Mode Trả lại 4 option per-Level** (S21 t4-t5 Mig 28→29):
- OneLevel = lùi 1 Cấp cùng Step (peer review)
- OneStep = lùi sang Bước trước Cấp cuối
- Assignee = pick NV đã ký runtime (PeLevelOpinions)
- Drafter = Phase=TraLai clear pointer (S17 backward compat default TRUE)

3 mode đầu giữ Phase=ChoDuyet lùi pointer. Mode Drafter giữ Phase=TraLai. Admin bypass `level.Allow*` flag.

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## 📅 Recent activity (last 10 FIFO)

- **2026-05-13 (S21 t3-t5, no spawn):** Em main solo 3 turns (bug fix gotcha #45 + F1+F2+F3 workflow-level Mig 28 + refactor per-NV Mig 29). Implementer REFUSE per cross-stack reasoning chain rule. Investigator KHÔNG spawn — em main đã có context cumulative S20 t12 setup + active dev throughout. No findings to flush. Cumulative state update: 84 test, 29 mig, 45 gotcha, 19 memory entries (+2 S21 t5 pending), 6 skills unchanged. Pattern reusable saved cho future spawn: per-NV permission scope split + EF migration ADD→BACKFILL→DROP reorder.
- **2026-05-11 (setup):** Investigator agent initialized. Baseline knowledge load complete (44 gotchas + 14 memory entries + 6 skills + 27 mig + 81 test pass cumulative). No investigations performed yet. Awaiting first SendMessage from em main.

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## 🔄 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)