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Agent skills package instructions, scripts, and reference material into a single folder (SKILL.md) so an AI agent can perform a specific task better. Claude, ChatGPT/Codex, Cursor, Gemini CLI, and GitHub Copilot all support the same format.

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We collect skills from across the web and show which agents they work with and how to install them. Each skill belongs to its original author, and we always link to the source.

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Category: Productivity

Caveman Compress

Compresses memory files like CLAUDE.md or todo lists into caveman-speak to cut input tokens, keeping a readable backup.

What it does

  • Compresses CLAUDE.md, todos, and preference files
  • Backs up the original to a folder skill loaders won't re-read
  • Refuses files that look like secrets, such as .env

When to use it

Use it when instruction files loaded every session get long. File contents are sent to your configured model provider, so avoid sensitive files.

How to install

  1. Run the command below in your terminal. Pick the agents you use (Claude Code, Codex, Cursor, Gemini CLI, Copilot, and more) and it installs into the right folder.
npx skills add https://github.com/JuliusBrussee/caveman --skill caveman-compress
  1. To install manually, download the caveman-compress skill folder from the GitHub repository and copy it into your agent's skills folder, such as ~/.claude/skills/ or .cursor/skills/.
  2. Ask your agent for a related task and the skill is used automatically.
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