Caveman Stats

This skill is delivered by hooks/caveman-stats.js (read by hooks/caveman-mode-tracker.js on /caveman-stats). The model does not need to do anything when this skill fires — the hook returns decision: "block" with the formatted stats as the reason. The user sees the numbers immediately.

Prerequisite: those hooks are not vendored in this vault — the skill folder ships no JavaScript, so /caveman-stats produces no output on its own. Install the full caveman plugin from JuliusBrussee/caveman and register its UserPromptSubmit hook (per the plugin's .claude-plugin/plugin.json); caveman-mode-tracker.js runs caveman-stats.js, which also requires the sibling caveman-config.js.

Output also includes Est. rule overhead and Est. net lines wherever a savings estimate exists with a known turn count. Rule overhead is the estimated per-turn INPUT-token cost of the injected caveman rules (default 1,250 tokens/turn, override with CAVEMAN_RULE_OVERHEAD_TOKENS) times the turn count. Net is savings minus that overhead — when negative, the output says so plainly and suggests turning caveman off for that workload, rather than hiding the net-negative regime behind a gross-savings number (see docs/HONEST-NUMBERS.md).