How is ag‑kit Licensed? MIT License Terms and Usage Guide

The ag‑kit repository is released under the MIT License, a permissive open-source license that allows commercial use, modification, and distribution provided the original copyright notice and license terms are preserved.

The ag‑kit project (Antigravity‑first AI agent engineering kit) maintained by Vudovn uses the MIT License to maximize developer freedom while ensuring proper attribution. Understanding how ag‑kit is licensed helps developers comply with legal requirements when integrating this AI agent engineering kit into commercial, proprietary, or open-source applications.

MIT License Overview

The MIT License governing ag‑kit is one of the most permissive software licenses available. It grants recipients the right to use, copy, modify, merge, publish, distribute, sublicense, and sell copies of the software.

Key permissions include:

• Commercial use without royalty payments
• Private modification and internal use
• Distribution of modified versions
• Inclusion in proprietary software projects

The primary requirement is preserving the original copyright notice and license text in all copies or substantial portions of the software.

Where the ag‑kit License is Documented

According to the vudovn/ag‑kit source code, licensing information is explicitly stored in multiple locations to ensure visibility and package manager compliance:

• LICENSE (root): Contains the full MIT license text and copyright notice for the entire project
• README.md: References the MIT License with a direct link to the license file, stating "Released under the MIT License © Vudovn"
• cli/LICENSE: Mirrors the top‑level MIT license specifically for the CLI package
• package.json (root): Declares "license": "MIT" for the main npm package
• cli/package.json: Declares "license": "MIT" for the CLI sub‑package

The copyright holder is Vudovn, and the permission grant begins with: "Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files..."

Usage Rights and Requirements

When incorporating ag‑kit into your projects, you must comply with these MIT License obligations:

Required:

• Include the original copyright notice ("Copyright (c) Vudovn")
• Include the full MIT license text in source or documentation
• State any significant changes made to the original code

Allowed:

• Using ag‑kit in commercial applications
• Modifying the source code without contributing changes back
• Distributing compiled or minified versions
• Sublicensing under different terms for your own additions

The MIT License explicitly disclaims liability and warranty, meaning users assume all risk when using the software.

Code Examples for License Compliance

When redistributing ag‑kit code or creating derivative works, include proper attribution headers:

// Example: Adding the license header to a new file
/**
 * ag-kit – Antigravity-first AI agent engineering kit
 * © 2024 Vudovn
 *
 * Licensed under the MIT License (see LICENSE file for details).
 */

When publishing a derived npm package that depends on ag‑kit:

{
  "name": "my-ag-kit-extension",
  "version": "1.0.0",
  "license": "MIT",
  "author": "Your Name <you@example.com>",
  "dependencies": {
    "ag-kit": "^1.0.0"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/yourname/my-ag-kit-extension.git"
  }
}

For Python packages wrapping ag‑kit functionality:

# Example: Adding license metadata in a Python package

from setuptools import setup

setup(
    name="my-ag-kit-wrapper",
    version="0.1.0",
    license="MIT",
    author="Your Name",
    description="Python wrapper for ag-kit",
    url="https://github.com/yourname/my-ag-kit-wrapper",
    install_requires=["ag-kit"]
)

Summary

• ag‑kit is licensed under the MIT License, a permissive license maintained by copyright holder Vudovn
• The full license text resides in the top‑level LICENSE file and is duplicated in cli/LICENSE for the CLI package
• Both package.json files (root and cli/) explicitly declare "license": "MIT" for npm registry compliance
• You may use ag‑kit in commercial projects without open‑sourcing your own code, provided you include the copyright notice and license text
• Always reference the specific copyright holder "Vudovn" when attributing the original work

Frequently Asked Questions

Can I use ag‑kit in a commercial project without paying royalties?

Yes. The MIT License explicitly permits commercial use, including selling software that incorporates ag‑kit. You do not owe royalties to the copyright holder (Vudovn), though you must include the original copyright notice and license text in your application or documentation.

Do I need to open‑source my modifications if I change ag‑kit's code?

No. The MIT License does not require you to distribute your modifications or open‑source your own projects that use ag‑kit. You may keep modifications private, use them internally, or distribute them under any license terms you choose, provided you maintain the MIT License notice for the original ag‑kit code.

Where can I find the exact license text in the repository?

The definitive MIT License text is located in the LICENSE file at the repository root. An identical copy exists at cli/LICENSE for the CLI‑specific package. The README.md file also contains a brief licensing statement linking to the full text, and both package.json files declare the SPDX identifier "MIT".

Who holds the copyright for ag‑kit?

According to the license files and repository documentation, Vudovn holds the copyright for the ag‑kit project. The license text states "Copyright (c) Vudovn" and the README attributes the work to "© Vudovn". When attributing the software, always credit this copyright holder.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}