Coverage Drop Investigator Runbook-style skill for investigating coverage regressions. Identifies which changes caused coverage to drop and recommends targeted tests. Activation Investigation Flow Step 1: Measure Current Coverage Step 2: Find When Coverage Dropped Step 3: Identify Uncovered Files Step 4: Map to Recent Changes Step 5: Recommend Tests For each uncovered file, identify: 1. Uncovered functions — need new test cases 2. Uncovered branches — need conditional test cases (if/else paths) 3. Uncovered lines — may indicate dead code or missing edge cases Step 6: Report Composition After…