solution-erp/docs/changelog/sessions/2026-06-17-S70-harness-9-l2-recovery.md

Session S70 (2026-06-17→18) — Harness-9 adopt: L2 archive dark-matter recovery + adap 2-workflow mandate

em main + 3 Workflow (12 agent) + 2 monitor bootstrap. 0 production code (governance/memory only). Commit f36aab8 pushed.

Trigger

Anh: /session-start → /check-email AI_INFRA và /adap-apply Harness-9 → chốt scope "đầy-đủ-nhất, làm cẩn thận từng stage — investigate → implement → audit" → /session-end.

Bootstrap (/session-start S70)

• 2 monitor RE-REPORT: 🟫 H1 — 3 skill cite stale (dependency-audit-erp/SKILL.md:153, skills/README.md:20+:90) + curate-debt 4 agent over-cap (cicd 63.6KB worst · inv-codebase 45.9 · reviewer 42.5 · impl-backend 32.4). ⬜ H2 — CLEAN, 0-orphan, 5-trục PASS (S69 fully harvested).
• RAG proj_solution_erp alive 2426 chunks (stale-index 05-29). test 306 baseline verified (45D+261I). HMW-mode ON. Lead Opus 4.8 (Fable suspended H5 fallback).
• /check-email AI_INFRA: outbox/se chỉ UI/UX guide (processed S58) → 0 thư mới directed. Harness-9 ở outbox/all (kênh /adap-apply, S64 lesson).

Harness-9 = 2 phần

• PART 2/3 (🔴 function-floor): mỗi adap = 2 workflow tách biệt (IMPLEMENT + REVIEW double-check) + REPORT-kèm-run-id; task ngắn-nhưng-cần-confirm VẪN cần review-workflow.
• PART 1 (proposal, tailor tự do): cứu L2 archive dark-matter — gist-additive + _INDEX.md TOC + budget seed-by-measure + budget-audit @session-start + command nén-gist tách build-index.
• PROJECT-FIT cao: SE có ~240KB archive dark-matter thật (4 over-cap sub), trùng đúng P1 curate-debt.

Stage A — INVESTIGATE (wf_be952f3c-97f, 4× investigator-codebase)

Recon 4 archive → build-plan. Quyết định pointer = substring sha-keyed (4 agent đồng thuận độc-lập): anchor-slug 404 dễ (slug-collision same-date; reviewer q3 hai ## 2026-05-22 identical; cicd 2026-06.md ZERO heading = bullet; Vietnamese-diacritic/em-dash slug-fragile). git-sha 7-char = immutable + grep-unique. KHÔNG line-hint (additive append shift dòng). + per-agent moveToArchive list + importantMarkers checklist (83 total, làm gate Stage C) + risks.

Stage B — IMPLEMENT (wf_a58e0d15-beb, 4× general-purpose, file-disjoint)

Mỗi sub: curate L1→L2 byte-exact → _INDEX.md → .gist.md (theo thứ tự, để index/gist phủ trạng-thái cuối).

sub	L1 trước→sau	moved	markers	_INDEX ptr
cicd-monitor	65→23.2KB	10	22/22	76/76
investigator-codebase	47→24.1KB	15 (tạo 2026-05-q4.md fresh — was git-only d2f52ba)	22/22	37/37
reviewer	43.5→24.8KB	9	19/19	19/19
implementer-backend	33→17.4KB	14	20/20	41/41

Cả 4 <25KB auto-inject cap → P1 curate-debt CLOSED, ~240KB archive hết RAG-dark. Em-main shared (single-writer, ngoài workflow): memory-budget.json (seed-by-measure — cicd _INDEX 16.8KB largest = 82% of 20KB cap, WATCH-agent) + scripts/measure-agent-memory.ps1 + .ragignore + codify PART 2/3 (adap-apply.md mandate + agents/README Upgrade S70 + session-start §2.1.2 budget-audit).

Stage C — AUDIT (wf_9520d8cd-4fe, 4× reviewer, independent)

• reviewer PASS (50/50 markers, 19/19 ptr, 0-byte airtight) · implementer-backend CONCERN (read-side gap memoryPointsToIndex:false + stale curate-log).
• 2 (cicd + inv-codebase) no-StructuredOutput (after 2 nudges) → em-main self-gate via git/sha/grep (recovery-path feedback_agent_kill_recovery).
• 4/4 0-byte-loss PASS: git numstat +N -0 (additive, 0 deletion trên verbatim modified) + frozen 2026-05-* sha256 IDENTICAL + content-identity (inv-codebase 2026-06.md rebuilt → CR-normalize prefix byte-exact; git autocrlf normalizes on commit).

Findings fixed before commit

• Read-side gap (3/4): cicd/inv-codebase/impl-backend MEMORY.md không trỏ _INDEX.md → agent spawn không biết đường tra map (read-side mechanism inert). Fixed L5 header → _INDEX.md + 2026-06.md + gist. (reviewer đã sẵn.) Stage-C độc-lập bắt = giá trị review-workflow riêng (implement tự-chấm bỏ sót) — đúng lý-do PART 2 tách 2 workflow.

§L closeout

• doc-drift 4 flush (H1): dep-audit:153 65→68 · skills/README:20 52→53 (+Mig 52→53 + label S65→S69) · :90 65→68 · session-start:44 (58)→(68).
• 4 curate-log refresh S70 (was stale S40/S66/S69).
• H2 GATE CONDITIONAL PASS: Corruption/Placement/Fidelity 🟢 (md5-proven 0-loss, 0 stray cwd, no-fabrication); Coverage/Completeness 🟡 (spawn-record fill via curate-log + 3 S?-label cosmetic worker-artifact trong impl-backend 2026-06.md:1/_INDEX:51/MEMORY:77 — content intact, label-only).
• Wave-folder: n/a (Workflow tool direct, không wave-mode → 0 .claude/workflows/wave-*/).

Phase 6 EVAL — infra-adoption (§6.3)

Harness-9 = infra/governance adoption. adap-report docs/governance/adap-reports/2026-06-17-Governance-harness-9-l2-recovery-and-adap-workflow.md (G-011 = executed-file + VERIFIED). email-back broadcasts/outbox/ai_infra/2026-06-17-se-to-ai_infra-harness-9-adopt-report.md (body-hash 7c07b716e775) — 3 đề-xuất ngược: (1) substring-pointer-keyed-on-sha cho archive đời-thực · (2) measure-then-seed reference impl · (3) self-gate-fallback hợp-lệ cho review-workflow khi auditor không return. SERVER-VERIFIABLE: commit f36aab8 + closeout commit origin synced.

State (UNCHANGED — 0 production code)

Mig 53 · 88 bảng · 306 test · 68 gotcha · menu 54 · bundle admin BgNCjwsG/user CBvh0vtf.

Lessons

• substring-pointer > anchor-slug cho archive trộn heading-level + same-date + diacritic — git-sha là khoá ổn-định nhất.
• REVIEW-workflow riêng có giá-trị thật (bắt read-side gap implement bỏ sót) — PART 2 dogfood đúng trên chính nó.
• self-gate-fallback khi reviewer no-StructuredOutput (#53 family) = nhánh hợp-lệ, KHÔNG FAIL adopt. → memory feedback_harness9_l2_recovery_2workflow_adap.

NEXT

• ⚠️ Restart CLI (đầu việc): session-start §2.1.2 budget-audit + (tồn) H8 all-inherit runtime + reviewer Category 6.
• Budget-audit @session-start (mới): cicd _INDEX 16.8KB/20KB cap (82% — gist-of-index/split khi vượt, đừng drop marker).
• Pending product carry S69: CEO-threshold Designer + cờ gấp PE test; "C" chờ spec. Ops S58/S59 (tzutil · anh Chương email · 5 real-staff pw · gán CNTT lock).
• Monthly audit 2026-07-01: STATUS/HANDOFF re-tier (trim S67↓→logs, defer ×9) · docs/CLAUDE deep-doc count-flush (gotcha 58→68 · 93→88 bảng · Budget-removed) + schema-diagram §16+ Mig 32-53 ERD · rollout Harness-9 _INDEX/gist cho sub khác KHI archive lớn lên.
• Cert api.solutions.com.vn ~2026-07-23 (auto-renew ~06-23).