
/plugin marketplace add JuliusBrussee/caveman/plugin install caveman@cavemannpx @caveman-ai/cli@latestnpx.ps1 because of ExecutionPolicy → error) · macOS/Linux: open Terminal.▶️ Usage summary
- Install (Claude Code):
/plugin marketplace add JuliusBrussee/cavemanthen/plugin install caveman@caveman - In your terminal:
caveman claude # start an agent on caveman: codex · gemini · opencode · aider · kilo · qwen · hermes · openclaw · pi - Cite:
@software{brussee2026caveman,
Caveman — A skill + proxy for coding agents that saves about 65% of tokens (the amount of text sent to the AI) by compressing sentences to be extremely terse.
What is Caveman?
Caveman is a skill (a capability for AI agents such as Claude, Codex and Cursor) on GitHub (JuliusBrussee/caveman). A skill + proxy for coding agents that saves about 65% of tokens (the amount of text sent to the AI) by compressing sentences to be extremely terse.
What can Caveman do?
- Cuts about 65% of tokens per AI request
- Shorter AI replies, lower costs
- Use it as a skill or as a proxy for agents
How to install Caveman
See the ⚡ Quick install section at the top of the page — it has a ready-to-copy command taken from the author’s README, plus where to run it. For the full instructions, see the README at the end of the page.
Frequently asked questions about Caveman
Is Caveman free?
Yes. Caveman is an open-source project on GitHub, so you can download and use it for free.
Is Caveman hard to install?
No. You only need to run one command above.
Download & source code
The source code, README and latest updates of Caveman are at github.com/JuliusBrussee/caveman. The star count and update date on this page sync automatically from GitHub.
📖 Full guide
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