utcp-specification

utcp-specification

The specification for the Universal Tool Calling Protocol

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The Universal Tool Calling Protocol (UTCP) Specification repository contains the official documentation for a modern and scalable standard that enables AI systems and clients to discover and interact with tools across different communication protocols. It defines tool discovery mechanisms, call formats, provider configuration, authentication methods, and response handling.

README:

Universal Tool Calling Protocol (UTCP) Specification

This repository contains the official specification documentation for the Universal Tool Calling Protocol (UTCP). UTCP is a modern, flexible, and scalable standard for defining and interacting with tools across various communication protocols.

What is UTCP?

UTCP provides a standardized way for AI systems and other clients to discover and call tools from different providers, regardless of the underlying protocol used (HTTP, WebSocket, CLI, etc.). This specification defines:

  • Tool discovery mechanisms
  • Tool call formats
  • Provider configuration
  • Authentication methods
  • Response handling

Contributing to the Specification

We welcome contributions to the UTCP specification! Here's how you can contribute:

  1. Fork the repository: Create your own fork of the specification repository
  2. Make your changes: Update or add documentation as needed
  3. Submit a pull request: Open a PR with your changes for review
  4. Participate in discussions: Join the conversation about proposed changes

When contributing, please follow these guidelines:

  • Ensure your changes align with the overall vision and goals of UTCP
  • Follow the established documentation structure and formatting
  • Include examples when adding new features or concepts
  • Update relevant sections to maintain consistency across the documentation

Building the Documentation Locally

Prerequisites

To build and preview the documentation site locally, you'll need:

  • Ruby version 2.5.0 or higher
  • RubyGems
  • Bundler

Setup

  1. Clone the repository:

    git clone https://github.com/universal-tool-calling-protocol/utcp-specification.git
    cd utcp-specification
  2. Install dependencies:

    bundle install

Running the Documentation Site

To build and serve the site locally:

bundle exec jekyll serve

This will start a local web server at http://localhost:4000 where you can preview the documentation.

Documentation Structure

The UTCP documentation is organized as follows:

  • index.md: Homepage and introduction to UTCP
  • docs/
    • introduction.md: Detailed introduction and core concepts
    • for-tool-providers.md: Guide for implementing tool providers
    • for-tool-callers.md: Guide for implementing tool callers
    • providers/: Documentation for each provider type
      • http.md: HTTP provider
      • websocket.md: WebSocket provider
      • cli.md: CLI provider
      • sse.md: Server-Sent Events provider
      • etc.
    • implementation.md: Implementation guidelines and best practices

Working with the Specification

Modifying the Documentation

The documentation is written in Markdown format with Jekyll front matter. When making changes:

  1. Ensure your Markdown follows the established style
  2. Preview changes locally before submitting PRs
  3. Keep examples up-to-date with the latest specification
  4. Update navigation items in _config.yml if adding new pages

File Organization

When adding new documentation:

  • Place provider-specific documentation in docs/providers/
  • Use consistent front matter with appropriate navigation ordering
  • Include tags for improved searchability on GitHub Pages

Version Control

The UTCP specification follows semantic versioning:

  • Major versions (1.0, 2.0): Breaking changes to the protocol
  • Minor versions (1.1, 1.2): New features added in a backward-compatible manner
  • Patch versions (1.0.1, 1.0.2): Backward-compatible bug fixes and clarifications

License

This specification is distributed under the Mozilla Public License 2.0 (MPL-2.0).

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