Create ToolUniverse Skill

Systematic workflow for creating production-ready ToolUniverse skills.

The devtu-* skills this one hands off to are no longer in this repository. devtu-optimize-skills, devtu-create-tool and devtu-fix-tool moved to the tu-harness plugin (tooluniverse/tooluniverse-harness), because they operate on this repository rather than being something a user of it calls. Install them with claude plugin install tu-harness@tooluniverse-harness; the references below name them by skill, so they resolve once that plugin is present. This skill is maintainer-facing too -- it is not in the user-facing plugin mirror -- and belongs beside them; it has not moved yet only because nothing forced the question.

Core Principles