review-test-coverage

# Review Test Coverage Analyze code for test coverage gaps. Identify untested functions, missing edge cases, and areas where test quality is insufficient. Return structured findings. ## Step 1: Determine the Scope Determine what to analyze: - If a specific **diff command** was provided (e.g., `git diff --cached`), run it to identify changed code that needs coverage analysis. - If a **file list or directory** was provided, analyze those files directly. - If **neither** was provided, default to diffing against the repository's default branch (detect via `gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name'`). ## Step 2: Identify Coverage Gaps 1. For each file in scope, skip non-testable code (config, documentation, CI files, SKILL.md files, markdown) 2. Search for existing test files covering the target code 3. Identify the project's test framework and conventions by reading existing test files 4. Analyze each function/module for: - **No test coverage**: functions or modules with no corresponding tests - **Missing edge cases**: tests exist but miss critical paths (error handling, boundary conditions, empty inputs, concurrent access) - **Risk-level mismatch**: high-risk code (auth, data handling, financial logic) with only basic happy-path tests - **Convention gaps**: tests not following the project's established testing patterns ## Output Format Return findings as a numbered list. For each finding: ``` ### [P<N>] <title (imperative, <=80 chars...