Ruff
An extremely fast Python linter and code formatter, written in Rust.
Mostly friendly. Welcome, with extra rules.
AI is supported as a coding tool, with contributors responsible for what they submit and a human who understands the work in the loop. Autonomous agents are not allowed. Issues, PR bodies and replies must be in the contributor's own words; quoted AI context must be marked and explained, and AI editing for non-native speakers is accepted.
Policy by area
- Code contributionsPatches, pull requests and other changes written with AI tools.
- Mostly friendly
- Contributor takes full responsibility
- No autonomous agents
- Issues & bug reportsBug reports, security reports and issues found or written with AI tools.
- Unfriendly
- Only minor help (autocomplete, grammar)
- AI-written textPull request descriptions, issue comments and summaries written by AI.
- Unfriendly
- AI use must be disclosed
- Only minor help (autocomplete, grammar)
In their own words
Code contributions
We support using AI (i.e., LLMs) as tools for coding. However, you remain responsible for any code you publish and we are responsible for any code we merge and release.
We do not allow autonomous agents to be used for contributing to our projects
Issues & bug reports
If you are opening an issue, we expect you to describe the problem in your own words.
AI-written text
AI should not be used to generate comments when communicating with maintainers
If you wish to include context from an interaction with AI in your comments, it must be in a quote block (e.g., using `>`) and disclosed as such.
If you are using AI to edit your comments for this purpose, please take the time to ensure it reflects your own voice and ideas.
Sources
- Astral AI Policygithub.com/astral-sh/.github/blob/main/AI_POLICY.mdSnapshot 9 Oct 2026