devtu-create-tool

Installation
SKILL.md

ToolUniverse Tool Creator

Create new scientific tools following established patterns.

Top 7 Mistakes (90% of Failures)

  1. Missing default_config.py Entry — tools silently won't load
  2. Non-nullable Mutually Exclusive Parameters — validation errors (#1 issue in 2026)
  3. Fake test_examples — tests fail, agents get bad examples
  4. Single-level Testing — misses registration bugs
  5. Skipping test_new_tools.py — misses schema/API issues
  6. Tool Names > 55 chars — breaks MCP compatibility
  7. Raising Exceptions — should return error dicts instead

Two-Stage Architecture

Related skills

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First Seen
Feb 4, 2026