Migration
Migration is an agent skill (a SKILL.md file) from JuliusBrussee/caveman. Implement reversible compatibility-safe transitions. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 110,252 GitHub stars across a repository of 4 listed skills. Install it by copying the skill folder into your agent's skills directory.
github.com/JuliusBrussee/caveman/skills/migration (opens in a new tab)
- Multi-skill repo
- Plugin marketplace
- Data & analysis
- Actively maintained
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add JuliusBrussee/caveman
/plugin install caveman@cavemanIn the Claude apps, zip the migration 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/JuliusBrussee/caveman.git
cp -r caveman/skills/migration .agents/skills/migration # 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/JuliusBrussee/caveman.git
cp -r caveman/skills/migration .cursor/skills/migration # 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
Implement reversible compatibility-safe transitions. Use for schema, data, API, protocol, configuration, or dependency migrations requiring rollback and preservation proof. Map current readers, writers, data shape, compatibility window, and ownership before editing.
When it triggers
- Use for schema, data, API, protocol, configuration, or dependency migrations requiring rollback and preservation proof.
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What is the Migration skill?
Migration is an agent skill (a SKILL.md file) from JuliusBrussee/caveman. Implement reversible compatibility-safe transitions. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 110,252 GitHub stars across a repository of 4 listed skills. Install it by copying the skill folder into your agent's skills directory. Its SKILL.md lives at github.com/JuliusBrussee/caveman/skills/migration.
How do I install the Migration skill?
In Claude Code, run /plugin marketplace add JuliusBrussee/caveman and then /plugin install caveman@caveman. For Codex or Cursor, copy the migration folder into .agents/skills/ or .cursor/skills/.
Is the Migration skill free?
Yes. The repository is open source under the Apache-2.0 license.
Is Migration maintained?
The repository's most recent commit was on Oct 6, 2026. Its latest release is v3.1.0. appsgit only lists skills from repositories with a commit in the last six months.