
Google Agent Quality Flywheel Skill Guide 2026: Testing and Grading Agents
A Google agent quality flywheel skill is a reusable workflow that turns agent traces into graded eval cases, runs them locally and in CI, then feeds production failures back into the test suite. For coding agents, the goal is simple: stop trusting “done” and start checking behavior, tool use, and real state changes. What is a Google agent quality flywheel skill? The phrase “Google agent quality flywheel skill” is not an official Google product name. I use it as a practical pattern for teams building agents with Google Agent Development Kit (ADK), Vertex AI Gen AI Evaluation, and a coding agent that can maintain its own eval suite. ...