Checking is part of the build from day one. Our own tool, the Planner, builds an application from written specifications without supervision. For every feature the test is written first and then the code. Then we check the result in a real browser and compare it with the approved design. Each step moves on only when all checks pass. See how it works in the Planner case.
In addition, a team of agents examines the finished project for bugs, usability problems or security weaknesses. Every confirmed finding is fixed with a test that fails before the fix and passes after it. This way every mistake becomes a permanent test. More in the quality and security agents case. We tell you openly what is checked and how.