Agent skill
js-generate-coverage
Self-contained command for coverage generation and analysis
Stars
163
Forks
31
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/js-generate-coverage
SKILL.md
JavaScript Coverage Report Skill
Self-contained skill that generates test coverage reports and analyzes results.
Parameters
- files - (Optional) Specific files to check coverage for
- workspace - (Optional) Workspace name for monorepo projects
Usage Examples
/js-generate-coverage
/js-generate-coverage workspace=frontend
/js-generate-coverage files=src/utils/validator.js
Workflow
Step 1: Generate Coverage
Execute npm coverage command:
bash
npm run test:coverage > target/npm-coverage-output.log 2>&1
# Or with workspace:
npm run test:coverage --workspace={workspace} > target/npm-coverage-output.log 2>&1
Parse build output (if needed):
bash
python3 .plan/execute-script.py pm-dev-frontend:cui-javascript-project:npm-output parse-npm-output \
--log target/npm-coverage-output.log --mode structured
This generates coverage reports in coverage/ directory.
Step 2: Analyze Coverage
Load skill and execute workflow:
Skill: pm-dev-frontend:js-implement-tests
Execute workflow: Analyze Coverage
Or run script directly:
bash
python3 .plan/execute-script.py pm-dev-frontend:js-implement-tests:js-coverage analyze --report coverage/coverage-summary.json
# Or for LCOV format:
python3 .plan/execute-script.py pm-dev-frontend:js-implement-tests:js-coverage analyze --report coverage/lcov.info --format lcov
Script returns structured JSON with overall_coverage, by_file, and low_coverage_files.
Step 3: Return Coverage Results
json
{
"overall_coverage": {
"line_coverage": 87.3,
"branch_coverage": 82.1
},
"low_coverage_files": [...],
"summary": {...}
}
Related
- Skill:
pm-dev-frontend:js-implement-tests- Analyze Coverage workflow - Skill:
pm-dev-frontend:cui-javascript-project- Parse npm Build Output workflow - Skill:
/js-implement-tests- Add tests for low-coverage areas
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