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Code Coverage Analysis

Testing & Quality
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Multi-language code coverage analysis, reporting, and quality gate enforcement

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How to use this skill

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  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/qa-testing-automation/skills/code-coverage/SKILL.md

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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.