Checksum

Checksum is a continuous quality platform that runs alongside CI/CD, testing, healing, and validating automatically so teams can ship more code without trading speed for reliability. It delivers production-ready Playwright tests that evolve with the app and heals broken tests as changes happen. The system provides zero-maintenance suites by recovering at runtime and via PRs, keeping tests green while the product grows.

The platform emphasizes autonomous testing: a background agent generates tests, runs them in CI, and heals them when needed. Tests are delivered as standard Playwright code to the repository, allowing teams to run them anywhere, modify them, and keep ownership. The approach aims to build full coverage quickly, including E2E, API, and per-PR testing, with continuous learning from runtime signals.

It stresses the need for a world model of runtime behavior to catch issues that only surface in production-like conditions, aiming to verify code automatically alongside development.

Checksum outlines a pathway of continuous quality through three stages—Test, Fix, and Prevent—where the code world model tests interactions across databases, APIs, configs, and real user behavior before ships, then maintains and expands coverage autonomously. The overall aim is releasing code that has been verified automatically without manual handoffs.

Use cases

• Automated generation and maintenance of an entire test suite across E2E and API coverage.
• Continuous testing integrated into CI/CD pipelines with auto-healing on changes.