How do I install the Caveman skill?

Run npx skillmds@latest add skyfox675/caveman in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Caveman safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Caveman?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Caveman free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Caveman?

skyfox675 (@skyfox675) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Caveman by skyfox675 — Agent Skill

Name: Caveman
Author: skyfox675

Caveman

Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.

skyfox675 Updated Sep 21, 2026

File contents

caveman (pointer skill)

Pointer skill — the implementation is not stored here. The name above is the stable local contract; the body lives upstream and is fetched/installed from source so consumers always get the latest version.

Canonical source: https://github.com/JuliusBrussee/caveman/blob/main/skills/caveman/SKILL.md
Raw SKILL.md: https://raw.githubusercontent.com/JuliusBrussee/caveman/main/skills/caveman/SKILL.md
What it does: Strips filler and uses terse fragment-based output to cut tokens while keeping technical precision; multiple intensity and language variants.
License: see the JuliusBrussee/caveman repo LICENSE.

Installing this skill

caveman is a full plugin — hooks, a session flag for auto-activation, a statusline token-savings badge, and slash commands. Copying this SKILL.md alone will not work. Run the upstream installer, which detects your agents and configures each:

macOS / Linux / WSL / Git Bash: curl -fsSL https://raw.githubusercontent.com/JuliusBrussee/caveman/main/install.sh | bash
Windows (PowerShell 5.1+): irm https://raw.githubusercontent.com/JuliusBrussee/caveman/main/install.ps1 | iex

Auto-activates in Claude Code, Codex, and Gemini; installs always-on rule files for Cursor, Windsurf, Cline, and Copilot. Full agent list: upstream INSTALL.md.

Security: curl … | bash runs remote code — review install.sh before piping it to a shell. Do not inline the upstream body here.

Frequently asked questions