55 lines
3.0 KiB
Markdown
55 lines
3.0 KiB
Markdown
# CASAN Domain Pack Guide
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A **Domain Pack** is the per-project data the harness needs to govern YOUR domain. It lives
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at `apps/<project>/domain/` and is selected via `CASAN_DOMAIN_ROOT`. The harness code
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(`packages/casan-harness/`) never contains domain data — this is what makes it reusable.
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Scaffold template: `packages/casan-devkit/templates/domain-pack/`.
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## Layout
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```
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apps/<project>/domain/
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├── domain-pack.yaml # manifest describing this pack
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├── project.manifest.json # executable project/build/test/verification contract
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├── input/
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│ ├── requirement.md # FR-xx table drives the traceability gate
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│ └── architecture.md # optional tech-stack/context
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├── golden-runs/
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│ └── <artifact>.golden.txt # baseline for drift detection (H7)
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├── corpus/
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│ ├── redteam-corpus.jsonl # attack vectors (H4 recall) — one JSON per line
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│ ├── redteam-vectors.jsonl # vectors for benign-fp-report / redteam metrics
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│ └── benign-corpus/*.txt # benign samples (H4 false-positive budget)
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└── traceability-map.json # FR-xx → code files + test files (+ optional symbols/lines)
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```
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## Each piece
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- **input/requirement.md** — must contain a `| FR-xx | ... |` table. The traceability gate
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(Plan-10) requires every `FR-xx` to map to ≥1 existing code file and ≥1 test file. No
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secrets/PII (the H4 input scan blocks them).
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- **golden-runs/** — a canonical "good" artifact per pipeline output. `drift-detect` compares
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a run against it; similarity 1.0 = no drift. Real drift detection is proven separately.
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- **corpus/** — red-team attack vectors (scored for H4 recall) + a benign corpus (bounds the
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false-positive rate). Domain-specific injections make the H4 score meaningful.
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- **traceability-map.json** — `{"FR-01": {"name": "...", "code": ["apps/okr/backend/src/...", {"file":"...","symbols":["Foo"],"lines":[12]}], "tests": ["..."]}}`. Symbol/line refs are
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optional but tighten the gate.
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- **domain-pack.yaml** — documents the above + optional threshold overrides.
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- **project.manifest.json** — selects authoritative inputs, source roots, quality profile,
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feature/artifact namespace, argv build/test commands, and per-path verification commands.
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## Wire it up
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```bash
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export CASAN_PROJECT_MANIFEST=apps/<project>/domain/project.manifest.json
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bin/casan gate # runs domain-dependent suites against your pack
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```
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`domain_root` is also recorded per-project in `packages/casan-harness/level5/project-registry.json`
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so `bin/casan reuse` can prove multi-project reuse.
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## Reference example
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The OKR app's own pack is the worked example: `apps/okr/domain/` (golden-runs, corpus,
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input, traceability-map). Copy its shape for your domain.
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The project manifest is validated fail-closed by both Node and Python runtimes. Paths are confined
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to the repository, commands are argv arrays checked against the quality-profile executable
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allowlist, and every source root must map to a post-patch verification rule.
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