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Skills juliusbrussee/caveman

Caveman Bundle · 12 skills

Use it when
you want shorter agent replies and fewer tokens spent, beyond chat too
It does
makes the agent answer tersely, and adds terse commits, one-line reviews and compressed memory files
Keeps
code, commands, errors and numbers exact, and full sentences for warnings and irreversible actions
Also has
five short work patterns, such as investigate-first and lean-build, that keep code changes small
Needs
the Caveman plugin for caveman-stats and for cavecrew's subagents

TLDR

Its core is caveman, a mode that makes the agent lead with the answer in short plain sentences, with no greetings, hedging or recaps, until you say "stop caveman"; ultracave and megacave, two more skills in the repo, cut further. The other skills carry the idea beyond chat. caveman-commit writes Conventional Commits messages with a subject of 50 characters when possible, caveman-review writes one line per review finding, and caveman-compress rewrites a memory file such as CLAUDE.md in caveman style to save input tokens, backing up the original. cavecrew delegates searches, small edits and reviews to three subagents whose reports come back compressed, so the main context lasts longer. caveman-stats shows the session's recorded token usage, and caveman-help lists every mode and command. Five short skills are work patterns the agent picks up when a task fits: investigate-first diagnoses before editing, lean-build builds only what's asked, surgical-patch fixes at the narrowest layer, safe-refactor keeps behavior unchanged and migration keeps changes reversible. The repo also ships a CLI and a proxy that shrink what the agent reads; this bundle covers its skills.

Summarizes the repo at bad48a0.

Any agent, with the skills CLI

npx skills add https://github.com/juliusbrussee/caveman --skill '*'

Claude Code plugin

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

Source on GitHub · All skills from juliusbrussee/caveman

Installs
526,347 of caveman, its most installed skill, on skills.sh, Sep 21, 2026
Repo stars
106,976 juliusbrussee/caveman
First seen
Apr 4, 2026 on skills.sh, its first skill

Its skills, in the order they're used

The ones marked “Only in the bundle” need the rest of it, so they're only listed here. The others also have their own entry in the skills list.

  1. caveman

    526K installs

    Switches to ultra-compressed answers that keep technical accuracy.

  2. caveman-commit

    370K installs

    Writes Conventional Commits messages compressed to intent only.

  3. caveman-review

    366K installs

    Writes terse code review comments, one line per finding.

  4. caveman-compress

    364K installs

    Compresses CLAUDE.md or todo files into caveman format to save input tokens.

  5. caveman-stats

    Only in the bundle 313K installs

    Shows token usage and mode attribution for the Claude Code session.

    Prints the token report of hooks that only the Caveman plugin installs, in Claude Code.

  6. caveman-help

    Only in the bundle 357K installs

    Shows a quick-reference card for caveman modes.

    A reference card for the bundle's modes and skills, so it only helps once they're installed.

  7. cavecrew

    Only in the bundle 314K installs

    Delegates work to terse investigator, builder and reviewer subagents.

    Delegates to three subagents that come with the Caveman plugin, not with the skill.

  8. investigate-first

    62K installs

    Diagnoses ambiguous failures before editing.

  9. lean-build

    61.4K installs

    Builds features with strict scope to avoid overbuilding.

  10. surgical-patch

    61.7K installs

    Fixes bugs at the narrowest layer that owns the wrong behavior.

  11. safe-refactor

    62K installs

    Restructures code while preserving behavior, with verification around each edit.

  12. migration

    61.1K installs

    Implements reversible migrations of schemas, data, APIs and dependencies.