Code Coverage Analysis Skill

Overview

This skill provides expert-level capabilities for code coverage analysis across multiple languages, enabling coverage collection, report generation, and quality gate enforcement.

Capabilities

JavaScript/TypeScript Coverage

• •Configure Istanbul/nyc for JavaScript coverage
• •V8 coverage collection
• •Source map support for TypeScript

Python Coverage

• •Configure coverage.py for Python coverage
• •Branch coverage analysis
• •Context-based coverage

Java Coverage

• •JaCoCo configuration for Java coverage
• •Maven/Gradle integration
• •Multi-module project support

Coverage Merging

• •Merge coverage reports from multiple sources
• •Combine unit and integration coverage
• •Cross-test-type aggregation

Reporting

• •Generate coverage badges
• •Track coverage trends
• •Generate HTML and XML reports

Quality Gates

• •Configure coverage thresholds
• •Enforce minimum coverage requirements
• •Block merges on coverage drops

Analysis

• •Analyze uncovered code paths
• •Identify dead code
• •Priority coverage recommendations

Integration

• •SonarQube integration
• •Codecov/Coveralls integration
• •CI/CD pipeline integration

Target Processes

• •automation-framework.js - Framework coverage setup
• •mutation-testing.js - Coverage for mutation testing
• •quality-gates.js - Coverage-based gates
• •continuous-testing.js - CI/CD coverage

Dependencies

• •nyc / c8 - JavaScript coverage
• •coverage.py - Python coverage
• •JaCoCo - Java coverage

Usage Example

{
  kind: 'skill',
  skill: {
    name: 'code-coverage',
    context: {
      action: 'analyze',
      language: 'javascript',
      reportFormats: ['html', 'lcov', 'json'],
      thresholds: {
        lines: 80,
        branches: 75,
        functions: 80
      }
    }
  }
}

Configuration

The skill auto-detects project language and configures appropriate coverage tools.