Coverage
Analyze test coverage gaps. Use when user says "test coverage", "what's not tested", "coverage gaps", "missing tests", "coverage report", or "what needs testing".From its SKILL.md
npx -y skills add sinhoneyy/master-skills --skill coverageAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
2 things to look at
- no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
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SKILL.md
2.7 KB, 634 tokens by cl100k_base, as published. Nobody here has run it
Analyze Test Coverage Gaps
Map all testable surfaces in the application and identify what's tested vs. what's missing.
Steps
1. Map Application Surface
Use the Explore subagent to catalog:
Routes/Pages:
- Scan route definitions (Next.js
app/, React Router config, Vue Router, etc.) - List all user-facing pages with their paths
Components:
- Identify interactive components (forms, modals, dropdowns, tables)
- Note components with complex state logic
API Endpoints:
- Scan API route files or backend controllers
- List all endpoints with their methods
User Flows:
- Identify critical paths: auth, checkout, onboarding, core features
- Map multi-step workflows
2. Map Existing Tests
Scan all *.spec.ts / *.spec.js files:
- Extract which pages/routes are covered (by
page.goto()calls) - Extract which components are tested (by locator usage)
- Extract which API endpoints are mocked or hit
- Count tests per area
3. Generate Coverage Matrix
## Coverage Matrix
| Area | Route | Tests | Status |
|---|---|---|---|
| Auth | /login | 5 | ✅ Covered |
| Auth | /register | 0 | ❌ Missing |
| Auth | /forgot-password | 0 | ❌ Missing |
| Dashboard | /dashboard | 3 | ⚠️ Partial (no error states) |
| Settings | /settings | 0 | ❌ Missing |
| Checkout | /checkout | 8 | ✅ Covered |
4. Prioritize Gaps
Rank uncovered areas by business impact:
- Critical — auth, payment, core features → test first
- High — user-facing CRUD, search, navigation
- Medium — settings, preferences, edge cases
- Low — static pages, about, terms
5. Suggest Test Plan
For each gap, recommend:
- Number of tests needed
- Which template from
templates/to use - Estimated effort (quick/medium/complex)
## Recommended Test Plan
### Priority 1: Critical
1. /register (4 tests) — use auth/registration template — quick
2. /forgot-password (3 tests) — use auth/password-reset template — quick
### Priority 2: High
3. /settings (4 tests) — use settings/ templates — medium
4. Dashboard error states (2 tests) — use dashboard/data-loading template — quick
6. Auto-Generate (Optional)
Ask user: "Generate tests for the top N gaps? [Yes/No/Pick specific]"
If yes, invoke /pw:generate for each gap with the recommended template.
Output
- Coverage matrix (table format)
- Coverage percentage estimate
- Prioritized gap list with effort estimates
- Option to auto-generate missing tests
What ships with it
Read from the repository
Just SKILL.md. No reference files, no scripts.
Gives 0 of the 12 instructions most test skills give in 634 tokens
Counted across 964 of the 1,571 authors here whose files we hold, read 2026-08-07
- Close the browser when donein 55 of 964, across 12 files
- Wait for network idle statein 51 of 964, across 6 files
- Launch Chromium in headless modein 49 of 964, across 6 files
- Use descriptive selectors for elementsin 49 of 964, across 6 files
- Run provided scripts with help flag firstin 49 of 964, across 6 files
- Add appropriate explicit waitsin 48 of 964, across 5 files
- Use bundled scripts as black boxesin 46 of 964, across 3 files
- Do not read script source codein 46 of 964, across 3 files
- Use sync playwright for scriptsin 46 of 964, across 3 files
- Inspect dom before executing actionsin 46 of 964, across 3 files
- Run the full test suitein 37 of 964
- Write the failing test firstin 29 of 964, across 23 files
Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.