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Add a custom tool to ToolUniverse v1.0.0

Use this resource to add a custom tool to ToolUniverse, as JSON or Python

New

  • 449 downloads
  • 226 likes
  • 157 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install custom-tooluniverse-tool-creation

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent chooses between a no-code JSON config and a Python class for complex APIs or computations. It creates the tool, tests it with the config's examples, and can package it as an installable plugin. You get a tool usable locally or shareable.

Mostly picked by

Updated November 2, 2026

Card for the “Add a custom tool to ToolUniverse” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

Similar resources

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What you get

  • references/json-tool.md : no-code JSON tool configuration
  • references/python-tool.md : Python class for specific logic and APIs
  • SKILL.md : tests, MCP server use and plugin package

Good fit for

  • A scientific API is not covered by ToolUniverse
  • You want to contribute a tool to the registry

Not for

    Tags

    • custom tool
    • toolUniverse
    • api
    • python

    About

    You say

    “Add a ToolUniverse tool that queries our internal sequence API.”

    Card for the “Add a custom tool to ToolUniverse” skill

    Skill published by mims-harvard under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to add a custom tool to ToolUniverse, as JSON or Python
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE11.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/json-tool.md10.5 KB
    • references/python-tool.md22.2 KB
    • SKILL.md9.6 KB

    Origin and licence

    Listed unmodified

    Author
    mims-harvard
    Source
    github.com/mims-harvard/tooluniverse/tree/169d065deeb3e289b3ff36d665529a123bdad791/skills/tooluniverse-custom-tool
    Licence
    Apache-2.0

    Notice

    « tooluniverse-custom-tool » (mims-harvard, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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