Caveman Help

SkillDev tools

Cut your AI's token usage by about 65% by having it answer in short, simple language. This skill makes your agent rewrite its responses the caveman way: fewer words, same point. Shorter replies mean every conversation uses fewer tokens.

Available today. Use it from your connected AI after setup.

Add the skill, then ask your agent something and it will reply in short, simple language that uses fewer tokens. The source is at github.com/juliusbrussee/caveman.

Then ask your AI: use the Caveman Help skill

What your AI can do with it

  • Rewrite responses in short, simple language
  • Cut token usage by about 65%
  • Answer with fewer words on every turn
  • Trim extra text out of replies

What this skill tells your AI

The instructions your AI receives, as published by juliusbrussee/caveman in skills/caveman-help/SKILL.md and read by ahel’s review.

Display this reference card when invoked. One-shot — do NOT change mode, write flag files, or persist anything. Output in caveman style.

Modes

ModeTriggerWhat change
Lite/caveman liteDrop filler. Keep sentence structure.
Full/cavemanDrop articles, filler, pleasantries, hedging. Fragments OK. Default.
Ultra/caveman ultraExtreme compression. Bare fragments. Tables over prose.
Wenyan-Lite/caveman wenyan-liteClassical Chinese style, light compression.
Wenyan-Full/caveman wenyanFull 文言文. Maximum classical terseness.
Wenyan-Ultra/caveman wenyan-ultraExtreme. Ancient scholar on a budget.

Mode stick until changed or session end.

Skills

SkillTriggerWhat it do
caveman-commit/caveman-commitTerse commit messages. Conventional Commits. ≤50 char subject.
caveman-review/caveman-reviewOne-line PR comments: L42: bug: user null. Add guard.
caveman-compress/caveman-compress <file>Compress .md files to caveman prose. Saves ~46% input tokens.
caveman-help/caveman-helpThis card.

Deactivate

Say "stop caveman" or "normal mode". Resume anytime with /caveman.

Language

Keep user's language by default. User write Portuguese → reply Portuguese caveman. Compress the style, not the language. Technical terms, code, commands, commit types, and exact error strings stay verbatim unless user ask for translation.

Configure Default Mode

Default mode = full. Change it:

Environment variable (highest priority):

export CAVEMAN_DEFAULT_MODE=ultra

Config file (~/.config/caveman/config.json):

{ "defaultMode": "lite" }

Set "off" to disable auto-activation on session start. User can still activate manually with /caveman.

Resolution: env var > config file > full.

More

Full docs: https://github.com/JuliusBrussee/caveman

Signals

GitHub stars
105k
Forks
6k
Last commit
Sep 2026
Installs
341k installs
Advanced
Catalog kind
skill
Gateway key
caveman-help
Source
github.com/juliusbrussee/caveman