What it does

The Test Coverage Auditor is a sophisticated diagnostic tool that maps your codebase to your test suite to uncover exactly where your application is vulnerable. Unlike standard CLI coverage tools that just give you a percentage, this skill performs a semantic analysis of your source code to identify specific untested functions, public exports, and critical logic paths.

Why use this skill

Standard coverage reports often miss the "why" and "where." This skill bridges that gap by categorizing untested code by risk level—tagging authentication, data persistence, and public APIs as critical priorities. It saves developers hours of manual auditing by automatically detecting your framework (Jest, Pytest, Go, etc.), mapping files to their tests, and suggesting missing edge cases like null inputs or boundary conditions.

Supported tools

• JS/TS: Jest, Vitest, Mocha, Jasmine
• Python: Pytest, Unittest
• Go: Native testing toolchain
• Rust: Cargo test suites
• Generic: Custom naming conventions and scripts

Output quality

You receive a structured Markdown report featuring a prioritized action plan. It doesn't just list files; it identifies specific line ranges and provides a "Top 3 Priorities" list so you can focus your testing efforts where they impact security and stability most.