[CLAUDE] Docs: adopt Harness-16 MFE (memory-fidelity-EVAL) — 2-workflow + email AI_INFRA

Adopt AI_INFRA Harness-16 (3 broadcast 2026-06-29) qua 2-workflow mandate:
WF1 implement wf_4c63e1bd-99e + WF2 review wf_13e3d35a-023 (PASS 0-blocking).

MFE = coverage/retention eval (do nap-vs-nho-vs-dung bang SO DO). DISTINCT
voi H6.7 memoryDelta-routing-fidelity (vocab-fork WF1 reviewer bat duoc).

Built (em-main single-writer, 0 production code):
- scripts/mfe-eval.ps1 deterministic NO-API (ASCII #30, exit 0): LEAD coverage-FIT
  (token-RANGE, cap live-read) + age-band flag-not-cut + Goodhart-anchor strikes/RCA;
  SUB per-role coverage do-that (prose->N/A khong 0%); sub-workflow N/A. Smoke 3-tier PASS.
- memory-budget.json :mfe config + eval/mfe/ (seed sample-questions stable-id + README)
  + engine §H + artifact-row + C3-comment + wire session-start §2.1.6 / session-end §L.b(c)
  opt-in + agents/README S93. Judge layer = SCAFFOLD-only (honest nac).

adap-report harness-16-mfe + harness-15-v3 (covered/folded) + email outbox/ai_infra.
AS-10 dogfood: WF1 residual-write caught+reverted. State GIU NGUYEN (Mig 59 · 88 · 434 · gotcha 76).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/commands/session-start.md

@@ -114,6 +114,7 @@ Em main xác nhận **lead model resolve được** đầu session. Lead SE = **
 - **In ở Phase 3 REPORT (đầu phiên):** ước-lượng composition Tầng-1 theo **% / 4 bucket** (tỉ-lệ đủ, KHÔNG cần đo chính-xác): (1) WIP work-state · (2) lỗi-lặp/anti-pattern/gotcha · (3) tồn-đọng · (4) quyết-định-chờ. + **Headroom** = phần còn-trống so cap role (`memory-budget.json:token_governor.tier1_hotfeed_tokens` — lead 220K · mem-sub (agent-ký-ức) 60K · wf-sub (agent-workflow) 50K; **v3 S83 full AI_INFRA parity**, canonical = budget.json → đọc số sống ở đó, đừng tin echo này khi anh đổi cap).
 - 🔴 **Headroom > 0 mà CÒN nội-dung giá-trị-cao chưa nạp = under-fill (SAI)** → nạp tiếp tới khi đầy hoặc cạn nội-dung giá-trị-cao. Headroom = cờ-báo, KHÔNG phải đích-tiết-kiệm; **nạp-đầy ≠ nhồi-rác** (giá-trị-thấp KHÔNG vào Tầng-1).
 - **Light/hỏi-đáp → gọn 1 dòng; feature/bug/governance → in đủ 4-bucket %.** Đối-xứng `session-end §L.b(c)` (% cuối phiên + Headroom).
+- **🧪 MFE opt-in (Harness-16 §H — memory-fidelity-EVAL, KHÁC H6.7 memoryDelta-routing):** lệnh kèm tham-số `eval` → chạy thêm baseline `powershell.exe -ExecutionPolicy Bypass -File scripts/mfe-eval.ps1` = LEAD coverage-FIT (must-remember vs cap, token-RANGE) + age-band (flag-not-cut) + Goodhart-anchor (strikes/RCA) + SUB per-role coverage (đo-thật, prose-only→N/A). KHÔNG `eval` = bỏ qua (tương-thích-ngược). MFE **READS** budget single-source, KHÔNG ghi. Light → skip; governance/audit → nên chạy.
 
 ### 2.2 Skill registry (6 skill)
 - Liệt kê: `contract-workflow` · `form-engine` · `permission-matrix` · `dependency-audit-erp` · `ef-core-migration` · `iis-deploy-runbook`