Terms of Use

Last updated: 2026-03-30

By installing or using rubber-duck, you agree to these terms.

What rubber-duck is

rubber-duck is a free, open-source Claude Code plugin licensed under the MIT license. It runs locally on your machine and has no backend or paid tier.

Use at your own risk

rubber-duck is provided as-is, without warranty of any kind. It modifies files in your ~/.claude/ directory during installation. The authors are not responsible for any issues arising from its use.

What you can do

• Use rubber-duck for personal or commercial projects
• Modify, fork, and redistribute it under the MIT license
• Contribute improvements via pull request

What you cannot do

• Redistribute rubber-duck under a different license
• Remove or obscure the copyright notice
• Use the rubber-duck name or branding to misrepresent a different product

No affiliation with Anthropic

rubber-duck is an independent open-source project. It is not affiliated with, endorsed by, or supported by Anthropic. Claude Code is a product of Anthropic.

Changes to these terms

Updates to these terms will be committed to the GitHub repository. Continued use of the plugin after changes constitutes acceptance.

Contact

Questions? Open an issue on GitHub.