Show real token usage and estimated savings for the current session, read from the session log. Trigger: /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. 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 ).