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Caveman Setup

Caveman Setup is an agent skill (a SKILL.md file) from JuliusBrussee/caveman. Wire a repository through the Caveman Cloud gateway so every LLM request is measured, with no behavior change. It works with Claude Code, Codex, Gemini CLI, GitHub Copilot and OpenCode and has 115,113 GitHub stars across a repository of 4 listed skills.

github.com/JuliusBrussee/caveman/skills/caveman-setup (opens in a new tab)

Data as of from the GitHub API and skills.sh; description from the skill's SKILL.md. Report an error

View on GitHub (opens in a new tab)View on skills.sh (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add JuliusBrussee/caveman
/plugin install caveman@caveman

In the Claude apps, zip the caveman-setup 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/caveman-setup .agents/skills/caveman-setup   # repo; ~/.agents/skills for all projects

Standalone 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/caveman-setup .cursor/skills/caveman-setup   # project; ~/.cursor/skills for all projects

Source (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

Wire a repository through the Caveman Cloud gateway so every LLM request is measured, with no behavior change. Use for "set up caveman" or adding LLM spend observability. You are wiring this repository through the Caveman gateway. Caveman is a byte-preserving LLM proxy: in record mode it measures what your app sends and what it costs, and changes nothing else. Your job is a minimal, verified integration — not a refactor.

When it triggers

  • Use for "set up caveman" or adding LLM spend observability.
  • "set up caveman"

More skills in JuliusBrussee/caveman

4 skills are listed from this repository.

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FAQ

Caveman Setup FAQ

Still curious? Email info@appsgit.com.

How do I install the Caveman Setup skill?

In Claude Code, run /plugin marketplace add JuliusBrussee/caveman and then /plugin install caveman@caveman. For Codex or Cursor, copy the caveman-setup folder into .agents/skills/ or .cursor/skills/.

Is the Caveman Setup skill free?

Yes. The repository is open source under the Apache-2.0 license. The skill mentions an API key or token for an external service, which may need its own account.

Is Caveman Setup maintained?

The repository's most recent commit was on Oct 25, 2026. Its latest release is v4.0.1. appsgit only lists skills from repositories with a commit in the last six months.