caveman

Compresses AI responses by removing filler words while preserving technical accuracy.

Updated May 10, 2026
One-click install
npx skills add https://github.com/rexshihaoren/rexy_vibing_setup --skill caveman-rexshihaoren
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: caveman
Source: https://github.com/rexshihaoren/rexy_vibing_setup/tree/main/docs/ai/skills/caveman
Command: npx skills add https://github.com/rexshihaoren/rexy_vibing_setup --skill caveman-rexshihaoren

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Long, verbose AI responses waste tokens and slow down reading when you only need the technical answer. This Skill cuts token usage by roughly 75% by stripping filler, articles, and pleasantries while keeping all technical substance intact. ## Core Features & Use Cases - Ultra-Compressed Responses: Drops articles, filler words, hedging, and pleasantries; uses fragments, abbreviations, and arrows for causality. - Persistent Mode: Once triggered, stays active across every response until the user explicitly says "stop caveman" or "normal mode". - Auto-Clarity Exception: Temporarily reverts to full clarity for security warnings, irreversible action confirmations, and multi-step sequences, then resumes caveman style. - Use Case: During a long debugging session, activate caveman mode to get terse, high-signal answers like "Bug in auth middleware. Token expiry check use < not <=." instead of paragraph-length explanations. ## Quick Start Tell the AI "use caveman mode" to switch all subsequent responses into ultra-compressed technical communication.

Frequently Asked Questions about caveman

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I make AI responses shorter and use fewer tokens?▼

Activate caveman mode by saying "caveman mode", "be brief", or "less tokens". The AI then drops articles, filler, and pleasantries, cutting token usage by roughly 75% while keeping technical content exact.

How to turn off caveman mode once it is active?▼

Say "stop caveman" or "normal mode" to deactivate it. The mode persists across every response until explicitly turned off and does not revert on its own after many turns.

Does caveman mode change code blocks or error messages?▼

No. Code blocks remain unchanged, technical terms stay exact, and errors are quoted verbatim. Only prose around the technical content is compressed.

When does caveman mode stop being brief automatically?▼

It temporarily drops compression for security warnings, irreversible action confirmations, multi-step sequences where fragments risk misreading, or when you ask for clarification. Full caveman style resumes afterward.

What are the limitations of ultra-compressed AI responses?▼

Terse fragments can be ambiguous for nuanced explanations, onboarding documentation, or non-technical audiences. It is best suited for experienced users who want high-signal technical answers, not polished prose.