This is your disciplined test runner for Salesforce Apex. It handles the full cycle: scoping what to test, running sf apex run test with the right flags, parsing failures, analyzing coverage gaps, and looping back through fixes until you hit the threshold. The workflow is smart about starting narrow on single classes before widening to RunLocalTests, and it knows when to delegate actual code fixes to the generating-apex skill. The reference files give you real patterns for bulk tests with 251+ records, HttpCalloutMock templates, and DML mocking strategies. Honestly, the 120-point scoring rubric and structured output format make this feel more like a QA process than an ad-hoc test run, which is exactly what you want when coverage actually matters.
npx skills add https://github.com/forcedotcom/sf-skills --skill running-apex-tests