Rulesync
Rulesync is an agent skill (a SKILL.md file) from dyoshikawa/rulesync. Generates and syncs AI rule configuration files (.cursorrules, CLAUDE.md, copilot-instructions.md) across 20+ coding tools from a single source. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 1,502 GitHub stars.
github.com/dyoshikawa/rulesync/skills/rulesync (opens in a new tab)
- Coding
- Actively maintained
Add this skill
Claude
Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):
git clone --depth 1 https://github.com/dyoshikawa/rulesync.git
cp -r rulesync/skills/rulesync ~/.claude/skills/rulesync # personal, or .claude/skills in a projectIn the Claude apps, zip the rulesync folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/dyoshikawa/rulesync.git
cp -r rulesync/skills/rulesync .agents/skills/rulesync # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/dyoshikawa/rulesync.git
cp -r rulesync/skills/rulesync .cursor/skills/rulesync # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Generates and syncs AI rule configuration files (.cursorrules, CLAUDE.md, copilot-instructions.md) across 20+ coding tools from a single source. Use when syncing AI rules, running rulesync commands, importing or generating rule files, or managing shared AI coding configurations. Rulesync generates and synchronizes AI rule configuration files across 20+ coding tools (Claude Code, Cursor, Copilot, Cline, Gemini CLI, and more) from a single set of unified rule files in .rulesync/.
When it triggers
- Use when syncing AI rules, running rulesync commands, importing or generating rule files, or managing shared AI coding configurations.
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What is the Rulesync skill?
Rulesync is an agent skill (a SKILL.md file) from dyoshikawa/rulesync. Generates and syncs AI rule configuration files (.cursorrules, CLAUDE.md, copilot-instructions.md) across 20+ coding tools from a single source. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 1,502 GitHub stars. Its SKILL.md lives at github.com/dyoshikawa/rulesync/skills/rulesync.
How do I install the Rulesync skill?
Copy the rulesync folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.
Is the Rulesync skill free?
Yes. The repository is open source under the MIT license.
Is Rulesync maintained?
The repository's most recent commit was on Oct 5, 2026. Its latest release is v27.0.0. appsgit only lists skills from repositories with a commit in the last six months.