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# CASAN — Team Handoff & Push-to-90 Plan
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**Repo:** `Output_CASAN5_REFINED/AINative_OKR_CASAN5` (the active package — GHCP is deprecated)
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**Status date:** 2026-06-28
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**Goal:** every harness H1–H7 **above 80**, ideally ~90, earned against real execution (no faked evidence).
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---
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## PART 1 — Where we are now (status report)
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### Current independent scores (verified, not self-claimed)
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| ID | Harness | Score | State |
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|----|---------|:---:|---|
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| H1 | Context | **82** | Real incremental `pipeline-context.yaml` from a real run; 12 distinct traces; artifacts on disk |
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| H2 | Tool | **80** | Per-agent permission enforced + in execution path; signed tamper-evident tool audit; rollback required |
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| H3 | Evaluation | **82** | Real app + real unit/e2e tests that run and can fail; real golden regression; real LLM-judge REJECTED→fix cycle |
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| H4 | Security | **80** | Input normalization defeats bypasses; pii-rules wired; output fail-closed on secrets |
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| H5 | Governance | **82** | RSA-anchored audit chain (re-forge detected); approver+output_hash hashed; separation of duties |
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| H6 | AgentOps | **80** | Real latency/alerts; hallucination detector populated; provider-telemetry cost source |
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| H7 | Orchestration | **80** | Real DAG run with real BACK-TO-PLAN; per-step CASAN wrapping; fallback/drift/rollback invoked |
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| | **Average** | **~81** | **CASAN Level 4 (Automated), genuine** |
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### How this was reached
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- **Phase 1 (harness hardening, by Claude):** lifted H2/H4/H5/H6 from ~50s to ~80 with adversarial-verified controls. See [phase1-hardening-reassessment.md](phase1-hardening-reassessment.md).
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- **Phase 2 (real app + pipeline run, by Codex — independent builder for impartiality):** lifted H1/H3/H7 by building a real NestJS+Prisma+React app and running the pipeline for real. Audited independently. See [phase2-independent-audit.md](phase2-independent-audit.md).
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### Verify the current state (run these — all must pass)
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```bash
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cd Output_CASAN5_REFINED/AINative_OKR_CASAN5
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npm test -w backend && npm run build -w backend && npm run build -w frontend
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bash .specify/tests/run-casan4-harness-tests.sh # 35 PASS / 0 FAIL
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bash .specify/tests/adversarial-harness-tests.sh # 22 PASS / 0 FAIL
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bash .specify/scripts/bash/verify-audit-chain.sh # AUDIT_CHAIN_VALID anchor=signed
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bash .specify/scripts/bash/verify-tool-audit.sh # TOOL_AUDIT_VALID anchor=signed
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```
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### Honest residual gaps keeping us at ~81 not ~90
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1. **H7** — in-run rollback still writes a marker (real undo exists only as a standalone demo); drift still compares a file to a copy of itself; model-fallback uses a synthetic trigger.
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2. **H6** — cost uses a sample provider record reused for every step (real latency, not real per-step billing).
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3. **H2** — no runtime rate-limit counter; no per-call JSON-schema validation of tool I/O.
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4. **H4** — rule/normalization-based only (no semantic/embedding detection); no tool sandbox/timeout.
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5. **H5** — audit signing key is local (must be KMS/HSM for production); no OS-level WORM.
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6. **H1** — no staleness / path-existence validation; design artifacts are thin.
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7. **H3** — frontend "test" is `tsc --noEmit` only (no runtime tests); backend coverage modest.
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8. Housekeeping — stray root files `o6.txt`, `o7.txt`, `t6.txt`, `t7.txt`.
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---
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## PART 2 — Model assignment guide (which model for which task)
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Use the exact model ID strings. Defaults below assume Claude; Codex (or another independent agent) is used **only** where impartiality matters (building the app that Claude then audits).
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| Model | ID | Cost (in/out per 1M) | Use it for |
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|---|---|---|---|
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| Claude Opus 4.8 | `claude-opus-4-8` | $5 / $25 | Hardest reasoning: security control design, audit-chain/crypto, orchestration logic, the LLM-judge gates, final independent re-scoring |
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| Claude Sonnet 4.6 | `claude-sonnet-4-6` | $3 / $15 | Bulk implementation: app code, tests, wiring scripts, YAML/config edits, docs |
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| Claude Haiku 4.5 | `claude-haiku-4-5` | $1 / $5 | Cheap mechanical: housekeeping, log/format cleanup, renames, simple fixtures |
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| Claude Fable 5 | `claude-fable-5` | $10 / $50 | Only the longest-horizon autonomous task (full app + run in one go); higher cost — use sparingly |
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| Codex (independent) | n/a | n/a | Building app/code that Claude will grade — keeps the assessment impartial. NOT for grading its own output |
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**Rule of impartiality:** whoever builds a thing must not be the one who scores it. App build → Codex; harness/security + scoring → Claude (Opus 4.8). If Claude builds something, a different reviewer (Codex or a second Claude session with no build context) verifies it.
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**Effort/thinking (Claude API or Claude Code):** use `effort: "high"` (or `xhigh` for coding/agentic) on Opus 4.8 for the design/verify tasks below; `medium` for bulk implementation; `low` for mechanical. Adaptive thinking on for anything non-trivial.
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---
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## PART 3 — Push-to-90 tasks (assign these)
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Each task: owner model, files, acceptance test, and the integrity rule (must be verifiable, no faking).
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| # | Task | Harness | Owner model | Acceptance (must be runnable) |
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|---|------|:---:|---|---|
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| T1 | Wire the **real undo** into the orchestrator's rollback step (replace the `printf rolled_back` marker with a genuine `git revert` / file-restore that the run actually executes) | H7 | Opus 4.8 | A pipeline run rolls back a real change; before==after on the target file; `rollback-transactions.jsonl` records the real command, not a marker |
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| T2 | **Real drift baseline**: snapshot plan-attempt-1 as the golden, compare attempt-2 → similarity < 1.0 and a meaningful threshold decision | H7 | Sonnet 4.6 | `drift-detect` run on two genuinely different artifacts yields similarity <1.0; test asserts a real PASS/FAIL boundary (not `cp golden candidate`) |
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| T3 | **Real model fallback**: drive fallback from an actual failed primary call (timeout/error), not `exit 9` | H7 | Sonnet 4.6 | fallback log shows a real primary failure → fallback success; wired into the orchestrator |
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| T4 | **Real per-step provider telemetry** for H6 cost (import actual token usage per step from the run, not the sample record) | H6 | Sonnet 4.6 | `metrics.jsonl` shows distinct per-step `total_tokens`/`cost`, `cost_source=provider_telemetry`, traceable to real usage |
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| T5 | **H2 runtime rate-limit counter** (file-based per-run counter for deploy/migration/write) + **per-call JSON-schema validation** of tool input/output | H2 | Opus 4.8 | adversarial test: N+1th side-effecting call in a run is denied; malformed tool input is rejected |
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| T6 | **H4 semantic injection check** (embedding/classifier in addition to rules) + tool sandbox/timeout wrapper | H4 | Opus 4.8 | adversarial test: a novel paraphrase not in the blocklist is still blocked; a runaway tool command is timed out |
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| T7 | **H5 KMS/WORM path**: move audit signing key off-repo (document KMS integration), add append-only file protection where the OS allows | H5 | Opus 4.8 | doc + script showing key is not in repo; tamper test still detects re-forge with key external |
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| T8 | **H1 staleness/validation**: validate every artifact path exists before a sub-agent reads it; add TTL/stale check to context entries; thicken design artifacts | H1 | Sonnet 4.6 | a missing/renamed artifact is caught before read; context entries carry/honor a freshness marker |
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| T9 | **H3 frontend runtime tests** (Vitest/RTL) + widen backend coverage; optional multi-model judge consensus at review gates | H3 | Sonnet 4.6 (tests), Opus 4.8 (judge) | `npm test -w frontend` runs real tests that can fail; coverage report; a 2-of-3 judge vote at one gate |
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| T10 | Housekeeping: remove stray root files; ensure all scripts executable; refresh both reassessment docs | — | Haiku 4.5 | clean tree; suites still green |
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| T11 | **Final independent re-score** of all 7 harnesses against the adversarial suite + a fresh pipeline run | all | Opus 4.8 (must NOT be a task owner above) | a re-assessment doc with per-harness evidence; every harness >80 |
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**Sequencing:** T1–T9 can run in parallel (different files); T10 after; T11 last, by a reviewer who did not own T1–T9.
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---
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## PART 4 — Non-negotiable integrity rules (put in every task brief)
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- Tests must actually run and be able to FAIL. Never hardcode/fake PASS.
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- Verdicts (review, judge, drift, rollback) must come from real logic over real artifacts. No hardcoded `approved`/`PASS`.
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- No recycled trace IDs; `pipeline-context.yaml` is written incrementally by the orchestrator, never by `generate-casan-demo-context.py`.
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- Do not weaken `.specify/scripts/bash/*` or the two test suites; add new tests as new files.
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- The builder of a thing never scores it (see impartiality rule, Part 2).
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- Every "done" claim ships with the exact command an auditor can run to reproduce it.
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---
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## PART 5 — Reference docs in this repo
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- [phase1-hardening-reassessment.md](phase1-hardening-reassessment.md) — H2/H4/H5/H6 hardening + evidence
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- [phase2-independent-audit.md](phase2-independent-audit.md) — H1/H3/H7 app+run audit + residual gaps
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- [casan-refined-reassessment-2026-06-28.md](casan-refined-reassessment-2026-06-28.md) — original baseline self-assessment
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- `.specify/tests/run-casan4-harness-tests.sh` / `adversarial-harness-tests.sh` — the verification suites
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- `docs/output/casan/app-evidence/MANIFEST.md` — app + pipeline evidence map
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