caveman skill · MIT · 30+ agents

Why use many token when few token do trick.

A skill your agent loads. It takes the filler out of the answer and leaves code, commands and errors byte-for-byte exact.

Claude Codeskill · caveman · full
illustrative conversation · token counts are approximate~237 → ~68 tokens

Wall of love

Few words.
Big reaction.

From a little skill to a very big conversation.
The kind words, the coverage, and the people behind it.

20 voices. Every source linked.

JetBrains

It is fun, and it costs you nothing measurable in quality.

82 paired coding tasks. 8.5% fewer output tokens; no detectable quality difference. Total cost varied.

Denis ShiryaevIndependent study
Hacker News

I don’t know about token savings, but I find the “caveman style” much easier to read and understand than typical LLM-slop.

vova_hn2Community voice
Hackaday

Turns out, you can understand the caveman output just fine.

Al WilliamsPublished coverage
Hacker News

Mass fun. Starred.

doe88Community voice
Hacker News

seeing something framed by a caveman in a couple of occasions peeled back a layer i didnt see before.

truenoCommunity voice
Decrypt

it has already made a lot of developers significantly less annoyed.

Reporting on the wider caveman-style movement, including this Skill.

Jose Antonio LanzPublished coverage
Hacker News

So it’s a prompt to turn Jarvis into Hulk!

andaiCommunity voice
Hacker News

honestly it will make my day not to have to read through entire essays about some trivial solution.

saidnooneeverCommunity voice
404 Media

A senior OpenAI employee has contributed code to the project, simply called ‘caveman.’

From the article’s introduction. Full reporting requires a subscription.

Joseph CoxPublished coverage
Hacker News

Me think this good idea. Regular language unnecessary complex. Distract meaning.

jongjongCommunity voice
Hacker News

this gave me a good laugh + some solid ideas.

bhwoo48Community voice
Elasticsearch Labs

The Elastic-Caveman initiative has successfully optimized AI response size without compromising quality or functionality.

Elastic’s own variant: 63.6% fewer output tokens across eight live MCP scenarios.

Sri KolaganiIndependent study
Hacker News

But combining this with caveman? Gold!

virtualritzCommunity voice
Hacker News

If you’re not cavemaxxing you’re falling behind.

drewbeckCommunity voice
The Register

if we allow midterms, it’s hard to beat Caveman.

From an opinion column on the surreal economics of AI.

Rupert GoodwinsPublished coverage
Hacker News

if goal make code, few word better. if goal make insight, more word better. depend on task.

shompCommunity voice
Hacker News

kevin would be proud

thorfinnnCommunity voice
Hacker News

Great idea

vivid242Community voice
Hacker News

me like that

SuracCommunity voice
Hacker News

I like

us321Community voice

Selected excerpts from public conversations and published articles. Read each source for the full context.

Good company.

Developers at these companies starred Caveman.

Meet the stargazers

From a joke to a research citation

CAVEWOMAN

Adobe researchers cite Caveman in their study of language compression.

Input and output compression, studied separately.Adeyemi, Rossi & Dernoncourt · June 2026Read the paper
One small skill. A lot of good company.Try it for yourself

Add it to your agent.
One command.

npx skills add JuliusBrussee/caveman -g
GitHub108kstars

MIT · Claude Code, Codex, Gemini, Cursor and 30+ more, from the same skill