Poolside

Poolside approaches AI coding from a quality-first perspective, specializing in test generation and quality assurance. Point it at a function or module, and it generates comprehensive unit tests, edge case coverage, and integration tests that actually make sense. The tool analyzes your existing test patterns to generate tests that match your team's style — whether you use Jest, Pytest, JUnit, or another framework. It understands mocking, fixtures, and common testing patterns. Beyond generation, it can identify untested code paths and suggest test scenarios you might have missed. Poolside also provides quality metrics: code coverage analysis, complexity scoring, and suggestions for improving testability. It's particularly valuable for teams trying to improve test coverage on legacy codebases or maintain quality standards as they scale. The integration with CI/CD pipelines makes it easy to enforce quality gates automatically.