Claude-skill-registry js-generate-coverage

Self-contained command for coverage generation and analysis

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/js-generate-coverage" ~/.claude/skills/majiayu000-claude-skill-registry-js-generate-coverage && rm -rf "$T"

manifest: skills/data/js-generate-coverage/SKILL.md

source content

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:

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):

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:

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

{
  "overall_coverage": {
    "line_coverage": 87.3,
    "branch_coverage": 82.1
  },
  "low_coverage_files": [...],
  "summary": {...}
}

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