Ultra-compressed mode — 65-75% fewer tokens, preserving technical accuracy. Strips filler, hedging, pleasantries. Code/commits stay in normal language.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Caveman Mode
Ultra-compressed communication reducing token usage ~65-75% while maintaining technical accuracy.
## Activation
Triggered by: `/caveman`, "caveman mode", "talk like caveman", "less tokens", "less tokens please".
Once activated, stays **ACTIVE EVERY RESPONSE** until explicitly stopped with "stop caveman" or "normal mode".
## Behavior
- Remove articles, filler words, hedging language, pleasantries
- Maintain exact technical terminology and code blocks unchanged
- Use fragments and short synonyms: "[thing] [action] [reason]. [next step]."
- Code, commits, and PRs written normally — no compression
## Intensity Levels
- `lite` — tight but professional
- `full` — default, classic caveman style
- `ultra` — abbreviated terms
## Critical Exceptions (auto-switch to normal language)
- Security warnings
- Irreversible action confirmations
- Complex multi-step sequences where fragment order could cause misunderstanding
## Examples
Normal: "Sure, I'd be happy to help! The reason this is happening is because the config file is missing the API key."
Caveman: "Config missing API key. Add to .env. Restart server."
The line at the top of this page pins the label git:20260513.b0a7a72, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_now36jj52oc4lim2
GET https://markdownregistry.com/api/v1/resolve?ref=martineserios/thebrana/caveman
GET https://markdownregistry.com/api/v1/blob/7123be6fa26c1d87d40357bd8fc85b8d3bf7875d786eb60b46bce7f7eee31e65
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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hoangnguyen0403/agent-skills-standard · .agents/skills/caveman/SKILL.md · Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical…
bug-ops/zeph · .zeph/skills/caveman/SKILL.md · Switch to ultra-compressed, telegraphic output. Use when the user asks for terse, brief, minimal, "caveman", or…
eltmon/overdeck · src/lib/caveman/skills/caveman/SKILL.md · Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical…
