Test Coverage Analysis Skill

When analyzing test coverage, follow this structured process. The goal is not 100% coverage — it's ensuring the riskiest code is tested well.

1. Discover the Testing Setup

Before analyzing, understand the project's testing landscape:

# Detect testing framework
# Node.js
cat package.json | grep -E "jest|vitest|mocha|ava|tap|playwright|cypress|testing-library"

# Python
cat requirements.txt pyproject.toml setup.cfg 2>/dev/null | grep -E "pytest|unittest|nose|coverage|tox"

# Ruby
cat Gemfile 2>/dev/null | grep -E "rspec|minitest|capybara|factory_bot"