plugmyagent

Caveman

Dev Utilities Open source (Apache 2.0)

AuthenticationOpen source (Apache 2.0)
Rate limitSelf-hosted open source: no limits; reduces your model token spend.

Documentation: docs.caveman.so ยท Checked Oct 12, 2026

About

Caveman is a viral skill plus local proxy that claims to cut coding-agent token usage by up to 65% by making agents communicate tersely, like a caveman: short prompts, short replies, no ceremony. Whether it hits the full 65% on your workload or not, the technique is real and the proxy is Apache 2.0 open source. Worth trying if your agent bills are the bottleneck.

Details

Open source. You run it yourself.

Auth: Open source (Apache 2.0)

Rate limit: Self-hosted open source: no limits; reduces your model token spend.

Verified: 2026-10-12

Best for: developer automation

Setup

  1. Install the caveman skill and local proxy from the docs.
  2. Point your agent harness at the local proxy.
  3. Enable the terse-communication skill.
  4. Run a typical task and measure tokens before and after.
  5. Keep it on for the workloads where it wins.