# 0022 — Test skills: write-tests, generate-test-data, review-test-coverage

**Type:** HITL  
**Parent PRD:** `docs/prd/chunk-3-skills-library.md`

## What to build

The 3 test phase skills. All are new. Authored via `write-skill` (0018), evals via `write-eval` (0017).

**Skills and trigger descriptions:**

| Flat name | Trigger description |
|---|---|
| `write-tests` | Write tests, generate test cases, add unit tests |
| `generate-test-data` | Generate test data, create fixtures, sample data |
| `review-test-coverage` | Review test coverage, find untested paths, coverage gaps |

**Key constraints per skill:**
- `write-tests`: derives tests from spec (EARS acceptance criteria), NOT from implementation; uses pytest for Python, Vitest/Jest for TypeScript
- `generate-test-data`: produces structurally valid, semantically unusual data; flags PII risk before generating
- `review-test-coverage`: reports coverage gaps against spec acceptance criteria, not line coverage percentages

## Implementation notes

Follow the per-skill workflow defined in `docs/notes/skill-implementation-workflow.md` (produced by issue 0016).

**Known upstream sources to review:**
- `mattpocock/skills` — check for any test-phase skills in the current set
- `bmad-method/bmad-method` — BMAD QA role patterns
- Search agentskills.io and GitHub for open-source test generation skills before writing from scratch

## Acceptance criteria

- [ ] All 3 SKILL.md files exist at `.agents/skills/<skill-name>/SKILL.md`; `metadata.category: test`; authoring standard met
- [ ] `write-tests` includes explicit constraint: derives from spec, not from implementation
- [ ] `generate-test-data` includes PII flag check before generating any data
- [ ] `source:` fields populated for any adopted upstream content
- [ ] Each skill has a co-located eval at `.agents/evals/test/<skill-name>/eval.yaml` via `write-eval`
- [ ] `install.sh` deploys all 3 to `~/.agents/skills/`
- [ ] **HITL:** human runs behavioral test per skill
- [ ] **HITL:** human reviews each SKILL.md and eval before committing
- [ ] _(Further criteria to be refined after issue 0016 grill session)_

## Blocked by

- 0016 (per-skill workflow)
- 0017 (`write-eval`)
- 0018 (`write-skill`)