the casino has no clocks, as one HN user put it some time ago.

I second ccusage, it's nice

https://ccusage.com/

https://github.com/kenn-io/agentsview

> Local-first session search, analytics, insights, and token use statistics for coding agents, supporting Claude Code, Codex, and more than 20 other agents.

solid piece of software

It's in the JSONs in ~/.claude, but last 30 days only I think. You can have the model analyze history. So for correct history you'd need to run history analysis on a cron job or something. Kinda hacky.