coverage-analyzer

Coverage-analyzer scans your JavaScript/TypeScript project to detect untested files and low-coverage regions. It ingests coverage reports (like Jest LCOV output) and outputs a prioritized list of files needing test attention, helping you focus test effort on critical gaps.

Yes. The Skill analyzes coverage metrics across lines, branches, and functions, then generates a prioritized roadmap with 1-3 recommended improvements. It ranks untested areas by business logic risk so you write tests for the highest-impact gaps first.

Coverage-analyzer processes LCOV coverage reports, commonly generated by Jest and other JavaScript/TypeScript test runners. It accepts coverage data, file patterns, and exclusion lists to filter results and output structured metrics with actionable recommendations.

The Skill outputs structured coverage metrics (lines, branches, functions) against defined targets. You run it on successive coverage reports to compare metrics and measure progress, letting you validate whether test improvements are raising overall coverage.

Coverage-analyzer accepts file patterns and exclusion lists as input, enabling you to filter results by directory, module, or suite. This lets you analyze coverage selectively across monorepo packages or focus on specific test suites within a larger project.