Caveman started as a joke prompt that made Claude grunt. 111,000 stars later, the repo's own Honest Numbers page says the voice saves about 3% over "Answer concisely", and version 4. 0 rebuilt the project around the tokens your agent reads instead.

Source: [Dev.to](https://dev.to/itxtayab/caveman-claude-code-skill-what-it-really-saves-227k)

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