Caveman

Token-saving skill + proxy (cuts tokens ~65%). Open source (Apache-2.0), free to use.

How to use it

Install it with the open Skills CLI (needs Node.js), then restart your agent:

npx skills add JuliusBrussee/caveman
  1. Download the ZIP from this page and unzip it.
  2. Put the juliusbrussee-caveman folder in .claude/skills/ inside your project (or ~/.claude/skills/ for all projects).
  3. Restart Claude Code and call it with /juliusbrussee-caveman.

More for cost & tokens

  • RTK Token Saver: CLI proxy reducing LLM token use 60-90% on dev commands. Open source (Apache-2.0), free to use.
  • Claude Code Router: Route Claude Code requests across models/providers. Open source (MIT), free to use.
  • UX UI Agent Skills: UX/UI architect skills: tokens, components, WCAG. Open source (MIT), free to use.