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claude-skill

Caveman: Reduce Tokens

Get efficient token usage with Caveman, a Claude Code skill for founders. 69k+ GitHub stars.
intermediate⏱ 30 minutesπŸ’΅ Free (self-hosted)
99,060 stars5,745 forksGoHealth Score 8/10Updated 8/19/2026100% free Β· open source
What it is

Use this skill to write like a caveman and automatically simplify your text into fewer tokens.

What you can make with it

Automations like: 'Use Claude to rewrite a lengthy blog post into a few short paragraphs and then schedule it on Medium using API.'

How it helps

This skill cuts 65% of tokens in your text by speaking like a caveman, potentially making your text more concise and cost-effective to process.

Real use case example

"A freelancer writes a lengthy website content block in Claude Code. They use the 'caveman' skill to rewrite it into a shorter, simpler text, and then schedule it on a Medium publication instantly. The rewritten text costs significantly less to generate and is published within minutes."

If you're new

Pick up this skill when you're new to AI text tools and want to reduce the complexity of your writing.

If you're senior

Senior engineers and professionals use this skill to save on processing costs and automate content generation.

Common confusion cleared up

This skill doesn't just remove words from your text; it also transforms your writing style into more primitive, concise language.

Best inside these AI tools
Claude Code
Pairs with
Claude APINotion databaseStripe webhook
Why we list it on WorkflowStacks: By including this skill, a marketplace of AI tools offers a tool-agnostic, free, and open-sourced solution for text token reduction.
What it does

The caveman tool reduces the number of tokens used in text by simplifying language, similar to how a caveman would communicate, cutting 65% of tokens while maintaining the core message.

Install / run
git clone https://github.com/JuliusBrussee/caveman.git
When to use it
  • β€’When you need to convey a simple message or instruction and want to minimize the amount of text used.
  • β€’In situations where character limits are a concern, such as in text messages or social media posts.
  • β€’For creating concise and straightforward content, such as product descriptions or instructional guides.
Quick start
  1. 1Navigate to the cloned repository with the command `cd caveman`.
  2. 2Run the script using a JavaScript interpreter, such as Node.js, with the command `node caveman.js`.
  3. 3Input your text when prompted to see the simplified, caveman-like version.
  4. 4Experiment with different inputs to see how the tool simplifies various types of text.
  5. 5Consider modifying the script to integrate it into your specific application or workflow.
Ready-to-paste prompt
Input 'The sun is shining brightly in the clear blue sky' to see the caveman version, which might output 'Sun shine. Sky blue.'
Heads up: Ensure you have Node.js installed on your system and that your environment is set up to run JavaScript files before attempting to run the caveman script.
Saves to your device

Topics

ai
anthropic
caveman
claude
claude-code
llm
meme
prompt-engineering
skill
tokens
How Caveman: Reduce Tokens works
Codeflow
Free to inspect

Caveman: Reduce Tokens is a very large Go project (~162k lines across 625 code files, plus 215 test files). You install it into your AI tool with one command; there is nothing to run yourself. Last commit this month, Other license, has a test suite.

Size
Very large codebase
~162k lines Β· 625 code files Β· days to read β€” use, don't read
Setup
Install as a skill / plugin
Add it to Claude Code (or your AI tool) with one command β€” 24 skills inside. Nothing to run yourself.
Runs on
Inside your AI tool
Helper scripts use Go Β· Node.js
Go 47%JavaScript 35%TypeScript 11%Python 6%
What happens, step by step

Tool reduces tokens

You give
User text
1Read Input
User gives text
2Shrink Text
Tool reduces tokens
mcp/server.go
3Return Output
Short text returned
You get
Short text
Where to start reading
  1. 1
    README.md
    Start here β€” what it does and how to install it
  2. 2
    AGENTS.md
    The instructions the AI actually follows
  3. 3
    mcp/server.go
    Where the program starts running
  4. 4
    skills/cavecrew/README.md
    Inside skills/ β€” an example of what the AI is told to do
What's in each folder
skills/Prompts, skills & agent definitions58 files
src/Core code β€” the actual logic32 files
agents/Prompts, skills & agent definitions21 files
commands/Prompts, skills & agent definitions10 files
packages/Sub-packages / plugins325 files
extension/Sub-packages / plugins40 files
plugins/Sub-packages / plugins20 files
integrations/Sub-packages / plugins15 files
READMEHas testsDocumentedCI checksOther licenseUpdated this month
Quick Actions
Details
Creator
JuliusBrussee
Language
Go
Category
claude-skill
Published
4/4/2026

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