Caveman: Slashing Coding Agent Token Usage with Ultra-Concise Outputs

RepositoryJuliusBrussee/cavemanTool

Caveman is an open-source tool and prompt skill designed to strip conversational filler from AI coding assistants. By instructing models to communicate in an ultra-terse 'caveman' style, the project cuts output token counts by around 65% while keeping actual code, commands, and technical fixes intact.

Key points

  1. Removes conversational throat-clearing from AI agents while preserving code, commands, and diagnostics.
  2. Cuts output token consumption by approximately 65%, directly lowering agent API expenses.
  3. Functions as an agent skill compatible with 30+ tools and offers 10 native wrap profiles via a Go-based proxy.
  4. Distributed under a dual MIT and BSL licensing scheme.

Why it matters

Because LLM APIs charge per token, chatty agent responses create unnecessary expense and increase round-trip latency. Caveman tackles this directly at the output prompt level with minimal operational overhead.

Analysis

Caveman addresses the verbosity of coding assistants like Claude Code. In standard outputs, models often spend dozens of tokens framing a diagnosis before delivering the actual fix; Caveman strips away everything except essential context and code. Built primarily with Go for its proxy and wrapper utilities alongside structured prompt skills, it is aimed at software developers and engineering teams operating automated coding agents at scale. Despite its meme-inspired branding, its maturity is evident from over 100,000 GitHub stars, 6,000 forks, dedicated documentation, and support across dozens of agent environments.

Found in

Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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Locations

  • Mattersburg
    Johann Nepomuk Bergerstraße 7/2/14
    7210 Mattersburg, Austria
  • Vienna
    Ungargasse 64-66/3/404
    1030 Wien, Austria

Parts of this content were created with the assistance of AI.