Sepia Refactor
Sepia Refactor is an agent skill (a SKILL.md file) from Nanako0129/sepia. Agents load it when a user explicitly requests Sepia refactor for minimal in-place prose revision. It works with Claude Code, Codex, Cursor, GitHub Copilot and OpenCode and has 3,004 GitHub stars across a repository of 2 listed skills.
github.com/Nanako0129/sepia/skills/sepia-refactor (opens in a new tab)
- Multi-skill repo
- Plugin marketplace
- Coding
- Actively maintained
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add Nanako0129/sepia
/plugin install sepia@sepiaIn the Claude apps, zip the sepia-refactor 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/Nanako0129/sepia.git
cp -r sepia/skills/sepia-refactor .agents/skills/sepia-refactor # 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/Nanako0129/sepia.git
cp -r sepia/skills/sepia-refactor .cursor/skills/sepia-refactor # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (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
Use when a user explicitly requests Sepia refactor for minimal in-place prose revision. This entry is supported only when co-installed with Sepia. Resolve only the exact sibling path ../sepia/SKILL.md from the directory containing this loaded wrapper file. If it is absent or unreadable, stop with: Sepia canonical skill is unavailable; install the complete Sepia plugin package.
When it triggers
- Use when a user explicitly requests Sepia refactor for minimal in-place prose revision.
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2 skills are listed from this repository.
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What is the Sepia Refactor skill?
Sepia Refactor is an agent skill (a SKILL.md file) from Nanako0129/sepia. Agents load it when a user explicitly requests Sepia refactor for minimal in-place prose revision. It works with Claude Code, Codex, Cursor, GitHub Copilot and OpenCode and has 3,004 GitHub stars across a repository of 2 listed skills. Its SKILL.md lives at github.com/Nanako0129/sepia/skills/sepia-refactor.
How do I install the Sepia Refactor skill?
In Claude Code, run /plugin marketplace add Nanako0129/sepia and then /plugin install sepia@sepia. For Codex or Cursor, copy the sepia-refactor folder into .agents/skills/ or .cursor/skills/.
Is the Sepia Refactor skill free?
Yes. The repository is open source under the MIT license.
Is Sepia Refactor maintained?
The repository's most recent commit was on Oct 6, 2026. Its latest release is v0.12.3. appsgit only lists skills from repositories with a commit in the last six months.