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Code quality patterns and guidelines for ToolUniverse tool development. Apply when writing, fixing, or refactoring tool Python code in the ToolUniverse project. Encodes lessons from 80+ debug rounds. Use alongside devtu-fix-tool and devtu-self-evolve. Triggers: implementing tool fixes, writing new tool classes, reviewing tool code quality, checking schema correctness, looking up API-specific bug fixes.
Passed 21 of 22 test cases with the skill, and 10 of 22 without it.
and 14 more in the full report
11 fixed10 passed either way1 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
What exact CLI command structure should be used to run `UniProtTool` with real arguments JSON string '{"gene": "TP53"}'?
| Checked | Without skill | With skill |
|---|---|---|
| Provides command in format python -m tooluniverse.cli run UniProtTool '{"gene": "TP53"}' | Missed | Passed |
The instructions your model reads when the skill loads.
Always run Skill(skill="simplify") after writing or modifying code.
return_schema has oneOf: [{data+metadata}, {error}]try: has except: at exact same indentation levelpython3 -c "import json; json.load(open('f.json'))")_lazy_registry_static.py and default_config.pyruff check src/tooluniverse/<file>.py passespython -c "from tooluniverse.<module> import <Class>" passespython -m tooluniverse.cli run <Tool> '<real_args_json>' returns expected dataSkill(skill="simplify") on all modified files| Category | Signal | Reference |
|---|---|---|
| Silent param ignored | API accepts but drops filter | code-patterns.md — Client-Side Filter |
| Wrong API field/endpoint | 0 results or 404 | api-fixes.md — Quick Lookup Table |
| Schema invalid | null type, missing oneOf | code-patterns.md — Schema Patterns |
| Undisclosed normalization | Auto-transform hidden from user | code-patterns.md — Normalization Disclosure |
| try/except indent | SyntaxError at runtime | code-patterns.md — try/except section |
| Truncation buried | Data count hidden in notes | code-patterns.md — Truncation |
| Hosted model API (NIM) | async 404 on poll, JSON-wrapped output, 200+inner-failure, "not found for account" | code-patterns.md — Hosted Model-API Tools |
| R subprocess tool | '\.' unrecognized escape from Rscript -e | code-patterns.md — R-subprocess Tools |
git fetch origin && git stash && git rebase origin/main && git stash pop
git push --force-with-lease origin fix/round-XX-bugs
gh pr view <N> --json mergeable # must be MERGEABLE before done
test cases passed, vs 10 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.