#8 of 15 · Top Claude Code skills

JuliusBrussee/caveman

Makes an agent reply in clipped sentences and read less while code stays exact, and its README reports 33% fewer input tokens across whole Claude Code sessions.

Efficiency Plugin GitHub docs.caveman.so

Stars: 111,601
Contributors: 83
Latest release: v4.0.1, 13 Oct 2026
Licence: Apache-2.0

This week, #5 of 15

+118 forks 445 commits 10 people committing 7 releases

This month, #7 of 15

+462 forks 1,130 commits 35 people committing 18 releases

What does JuliusBrussee/caveman do?

Caveman makes an agent answer in short, clipped sentences and read less, while code stays exact. One installer finds the agents and logins on your machine and sets them up, Claude Code among them, and harder modes, /ultracave and /megacave, cut further. Its README reports 33.2% fewer input tokens over 54 whole Claude Code sessions, with 18 of 18 answers right.

Its default branch holds 28 SKILL.md files, 6 agent files and 9 command files.

How do you install JuliusBrussee/caveman in Claude Code?

/plugin marketplace add JuliusBrussee/caveman
/plugin install caveman@caveman

How fast is JuliusBrussee/caveman being forked?

Forks over time, by the day each was made

How actively is JuliusBrussee/caveman maintained?

1,530 commits in 52 weeks, and 51 releases in 12 months

Commits per weekRelease

Alternatives in the same category

DietrichGebert/ponytail
One skill that makes the agent write only the code a task needs, without cutting validation, security or tests, plus commands to review a change and audit a repository.
163,053 stars

Numbers are from the GitHub API on 14 October 2026, read once a day; what it does and how to install it are from its README. All 15 Claude Code skills.