Discover and persist how a project's tests run, then run the suite and repair failures by root cause, clustering failures by error signature, fixing the shared cause once, and asserting no test was weakened. Use when tests are failing, the suite is red, CI pasted a failure log, or someone asks to make the tests pass. Not a general debugger, and not for a failure that is not a test run.
Install
npx skills add renzrollon/shippable-skills --skill fix-tests-shippable-skillsnpx skills add renzrollon/shippable-skills --skill fix-tests-shippable-skills -a claude-code -gnpx skills add renzrollon/shippable-skills --skill fix-tests-shippable-skills -a codex -ggemini skills install https://github.com/renzrollon/shippable-skills.git --path skills/engineering/fix-testsgh skill install renzrollon/shippable-skills fix-tests-shippable-skillsgit clone --depth 1 https://github.com/renzrollon/shippable-skills /tmp/renzrollon__shippable-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/renzrollon__shippable-skills/skills/engineering/fix-tests ~/.claude/skills/fix-tests-shippable-skills # Claude Code
cp -R /tmp/renzrollon__shippable-skills/skills/engineering/fix-tests ~/.agents/skills/fix-tests-shippable-skills # Codex, Cursor, Gemini CLI, Copilot, OpenCode