Caveman plugin: what it installs and how to add it
Compresses coding-agent messages while preserving technical terms, code, commands, and exact errors.
From the Marketplace: claude-community marketplace
Install
> /plugin marketplace add anthropics/claude-plugins-community> /plugin install caveman@claude-communityRun both lines inside Claude Code: the first adds the marketplace, the second installs the plugin.
What is inside
- 20skills
- 1command
- 3agents
- 2hooks
About this plugin
Caveman changes how an AI coding agent communicates by shortening prose without removing technical terms, code, commands, or exact error messages. Reach for it when agent conversations are too verbose or token usage needs to be reduced without losing actionable detail.
It needs no account or API key and can be installed with npx skills add JuliusBrussee/caveman -g. Activation varies by agent: Claude Code can use a session-start hook, while other agents may need a rule, context file, or similar setup.
What's inside
- 20 skills:
cavecrew,caveman-commit,caveman-compress,caveman-discover,caveman-evidence-review,caveman-explore,caveman-help,caveman-learn,caveman-manage,caveman-optimize,caveman-review,caveman-setup,caveman-stats,caveman,investigate-first,lean-build,migration,safe-refactor,surgical-patch, andverify-and-stop - 1 command:
caveman-init - 3 agents:
cavecrew-builder,cavecrew-investigator, andcavecrew-reviewer - 2 hooks
- 0 MCP servers
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Skills, not plugins
Prefer a single skill for productivity work? 109 skills in the same category, each installed on its own.