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An agentic skills framework & software development methodology that works.
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View guide →Write coding-agent rules once, then apply them to every AI coding tool you use.
ruler is an open-source agents project by intellectronica (intellectronica/ruler on GitHub). It has 2,940 GitHub stars and 164 forks, is released under the MIT license, and was last updated on GitHub on 30 September 2026.
Write project conventions in one place.
Add it to your project tooling.
Ruler syncs rules into each tool’s expected format.
Update once and every agent picks up the change.
A single place for all agent conventions.
Claude Code, Cursor, Codex, Copilot, Aider, and more.
Rules propagate to each tool’s config format.
Different rules per repo, no global mess.
Minimal config, works with existing projects.
Share conventions through version control.
Download the source and move into the project folder.
git clone https://github.com/intellectronica/ruler.git
cd rulerEvery project documents its own setup; start with install requirements.
cat README.md | head -60Follow the project’s launch command — Docker, pip, npm, or a binary release.
# see README for the exact launch commandIt is an open-source project at intellectronica/ruler with 164 forks. Check recent commits for activity.
Yes. MIT licensed, free for any use.
Claude Code, Cursor, Codex, Copilot, Aider, and others; see the README for the full list.
No. It generates the per-tool files from your single source of truth.
Very little: define rules once and run the sync command.
An agentic skills framework & software development methodology that works.
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