A hardened checklist and pattern library extracted from 80+ debugging rounds in the ToolUniverse project. You get pre-commit checks (schema structure, indentation traps, real test IDs), a reference table mapping common failure modes to fixes (silent parameter drops, wrong endpoints, hidden truncation), and API-specific bug lookups for GtoPdb, CIViC, GTEx, and others. Use it when writing or refactoring tool classes to catch the mistakes that don't show up until runtime. The Git workflow section is opinionated: no direct pushes to main, never multiple fix PRs, commit messages say "Fix" not "Bug". It pairs with devtu-fix-tool and devtu-self-evolve and insists you run a simplify skill after every change.
npx skills add https://github.com/mims-harvard/tooluniverse --skill devtu-code-optimization