Caveman skill claims to cut coding-agent tokens by 65%

First seen Nov 14 Updated Nov 14, 23:32 UTC Heat 21 medium evidence

The Caveman repository is a skill and proxy for coding agents that makes the agent write terse output to save tokens. Its README claims a 65% token cut and also promotes a new agent, Caveman Code. The benchmarks are the project's own.

What to do: Install the skill and compare token use on your own tasks against the README claims.
Who should care: Developers using Claude Code, Codex or similar coding agents who pay per token.

Why it matters: Caveman is Apache-2.0, so developers can install the skill and test whether its claimed token savings hold in their own agent sessions.

Key facts

Claims 65% fewer tokens; Claims 33.2% fewer input tokens across 54 Claude Code runs
Licence: Apache-2.0; Claims Caveman Code is 21% cheaper than Codex on Terminal-Bench 4; Claims 14% cheaper than Claude Code, 97 vs 83 tasks solved

Timeline

Coverage

Nov 14, 23:22 UTCjust now
JuliusBrussee/caveman: 🪨 why use many token when few token do trick. Viral skill + proxy for coding agents that cuts 65% of tokens by talking like a caveman.github.com · GitHub · 120k stars

Evidence

Medium evidence: several community reports point the same way, but there is no official confirmation yet.

Details written Nov 14, 17:38 UTC from the sources listed above.