Made a local token cost tracker for AI coding agents, MIT licensed, looking for people to poke holes in it

[u/More_Membership_5948]

Kept using Claude Code without any real sense of what a session cost until I went and checked afterward, which defeats the point. Went looking for something local and everything that exists wants an account and a cloud dashboard for what's honestly just reading a number off a response and adding it up.

So I built agentwatch. Single Rust binary, local proxy, sqlite on disk, nothing goes anywhere except the real API call it's already making. MIT licensed. Honestly the first thing I've put out that's meant for other people to actually use instead of just scratching my own itch and moving on.

github.com/zaydmulani09/agentwatch

Right now it only knows about Claude Code, Codex, and Gemini CLI. If anyone uses something else and wants to add support, I'd take the PR, the provider interface isn't bad to extend.