IDK-Strongleft License

I Don't Know Strongleft License — Version 0.0.1, February 2026

SPDX: LicenseRef-IDK-Strongleft-0.0.1 Strong Copyleft Network Clause (AGPL-like) Not Attorney-Reviewed

About This License

The IDK-Strongleft License is a strong copyleft license functionally similar to the AGPL-3.0, designed for works created with AI assistance. It requires that derivative works be distributed under the same license and includes a network interaction clause requiring source disclosure for network-accessible deployments.

Copyleft Requirements

  • Modified versions must use this license
  • Source code must be provided
  • Network deployments must offer source
  • Downstream recipients get automatic license

AI-Specific Features

  • AI authorship uncertainty acknowledged
  • Copyleft as contractual covenant (survives even if copyright fails)
  • Patent non-assertion + grant
  • Trade secret risk acknowledgment

Additional features:

  • Simultaneous AGPL-3.0 grant — simultaneously granted under AGPL-3.0; recipients may rely on either grant
  • AGPL-3.0 compatibility — combinable with AGPL-3.0 works (the sole compatible external license)
IDK-Strongleft vs IDK-Weakleft: The key difference is the network interaction clause. IDK-Strongleft (like AGPL) requires source disclosure when users interact over a network. IDK-Weakleft (like GPL) does not.
Important: This license was drafted with AI assistance. It has not been reviewed by a licensed attorney. There is no warranty that it works as intended. This is not legal advice.

Quick Start

  1. Copy the license file to your project root:
    curl -o LICENSE-IDK-Strongleft https://idklaw.net/license-strongleft/0.0.1/LICENSE-IDK-Strongleft
  2. Add SPDX identifiers to your source files:
    // SPDX-License-Identifier: LicenseRef-IDK-Strongleft-0.0.1
  3. Mention it in your README:
    ## License
    This project is released under the [IDK-Strongleft License](https://idklaw.net/license-strongleft/0.0.1),
    Version 0.0.1. See LICENSE-IDK-Strongleft for details.

If your project includes third-party dependencies, use the IDK-Strongleft-WTF License instead.

Full License Text

This is the complete, legally operative text of the IDK-Strongleft License v0.0.1. The authoritative copy is the plain-text file.