Executes individual test files with fail-fast logic to provide immediate feedback during rapid development iterations.
Test Focus is a high-efficiency utility for Claude Code designed to minimize the feedback loop during development. It automatically detects your project's testing framework—including Playwright, Vitest, Jest, pytest, Cargo, and Go—and executes a specific test file using optimized 'fail-fast' parameters. By stopping immediately at the first failure and providing actionable debugging suggestions, it allows developers to isolate issues and verify fixes without the overhead of running entire test suites or waiting for multiple failures to accumulate.
Key Features
0110 GitHub stars
02Support for serial execution to prevent collisions in resource-heavy tests
03Visual debugging mode for headed browser testing and inspector tools
04Fail-fast execution that stops immediately upon the first test failure
05Automatic framework detection for JavaScript, Python, Rust, and Go projects
06Clean, standardized status reporting with ready-to-use re-run commands
Use Cases
01Debugging a single failing test file without waiting for the full suite to finish
02Iterating on UI components using Playwright or Vitest with visual feedback
03Running database-dependent tests in serial mode to ensure state consistency
