Harness's Test Intelligence is an innovative tool designed to enhance developers' efficiency by selectively running only the necessary unit tests during the CI process, significantly reducing unit test cycle times by 20-60%. This capability, integrated into Harness's CI module, utilizes a "Test Graph" model that correlates class methods with test methods, ensuring that only relevant tests are executed based on code changes, test modifications, and the addition of new tests. The approach was validated through internal testing on large repositories and common open-source projects, demonstrating substantial time savings and efficiency gains. Test Intelligence operates without requiring changes to the source code, build, or test processes as it instruments the byte code on the fly, offering developers visibility into test selections and their rationales. Currently supporting Java, Harness plans to expand its language support and enhance features like test ordering and flaky test detection. This tool is part of Harness's CI Enterprise free trial, inviting developers to try it and provide feedback on testing and CI/CD bottlenecks.