A Claude Code skill that makes Claude talk like a caveman, cutting token use

Article URL: https://github.com/JuliusBrussee/caveman Comments URL: https://news.ycombinator.com/item?id=47647455 Points: 416 # Comments: 244

A Claude Code skill that makes Claude talk like a caveman, cutting token use
A Claude Code skill that makes Claude talk like a caveman, cutting token use Photo: Hacker News

why use many token when few do trick
Install • Benchmarks • Before/After • Why
A Claude Code skill/plugin and Codex plugin that makes agent talk like caveman — cutting ~75% of tokens while keeping full technical accuracy.

Based on the viral observation that caveman-speak dramatically reduces LLM token usage without losing technical substance.

So we made it a one-line install.

"The reason your React component is re-rendering is likely because you're creating a new object reference on each render cycle.

When you pass an inline object as a prop, React's shallow comparison sees it as a different object every time, which triggers a re-render.

I'd recommend using useMemo to memoize the object."
"New object ref each render.

Inline object prop = new ref = re-render.

Wrap in useMemo ."
"Sure!

I'd be happy to help you with that.

The issue you're experiencing is most likely caused by your authentication middleware not properly validating the token expiry.

Let me take a look and suggest a fix."
"Bug in auth middleware.

Token expiry check use < not <= .

Fix:"
Same fix.

75% less word.

Brain still big.

Real token counts from the Claude API ( reproduce it yourself ):
Range: 22%–87% savings across prompts.

Caveman only affects output tokens — thinking/reasoning tokens are untouched.

Caveman no make brain smaller.

Caveman make mouth smaller.

Biggest win is readability and speed , cost savings are a bonus.

A March 2026 paper "Brevity Constraints Reverse Performance Hierarchies in Language Models" found that constraining large models to brief responses improved accuracy by 26 percentage points on certain benchmarks and completely reversed performance hierarchies.

Verbose not always better.

Sometimes less word = more correct.

Or with Claude Code plugin system:
Install once.

Use in all sessions after that.

Stop with: "stop caveman" or "normal mode"
Caveman not dumb.

Caveman efficient .

Caveman say what need saying.

Then stop.

MIT — free like mass mammoth on open plain.

Source: This article was originally published by Hacker News

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