# CASAN PLAN 10 — Traceability REQ→Code→Test + H3 Eval

> Status 2026-07-06: **MVP implemented + tested**. Scope is deterministic
> traceability for the OKR sample app; broader H3 eval-set expansion remains a
> platform follow-up.

## MVP delivered

| Capability | Where | Verification |
|---|---|---|
| Parse `FR-*` from `docs/input/okr-requirement.md` | `.specify/scripts/bash/traceability-matrix.py` | `phase10-traceability-tests.sh` |
| Declarative FR→code→test map | `.specify/traceability-map.json` | gate checks every mapped file exists |
| Gate every FR has >=1 code file and >=1 test file | `traceability-matrix.py --gate` | missing FR test coverage fails |
| Evidence Pack includes traceability matrix | `evidence-pack-build.py` | `phase3-evidence-pack-tests.sh` expects 13 files |

## Current result

```bash
python3 .specify/scripts/bash/traceability-matrix.py --gate
# TRACEABILITY_MATRIX requirements=5 pass=5 fail=0 ...

bash .specify/tests/phase10-traceability-tests.sh
# TRACEABILITY SUMMARY: PASS=3 FAIL=0
```

Generated artifact:

- `AINative_OKR_CASAN5/docs/output/casan/traceability-matrix.json`

## Next steps

| Priority | Work | Done when |
|---|---|---|
| P1 | Add traceability line references or symbol references, not only file paths | matrix can point to precise code/test locations |
| P2 | Expand H3 eval-set beyond the OKR sample app | independent eval corpus runs through judge gates |
| P3 | Enforce traceability in release CI | CI blocks a new FR without code+test coverage |