I built a free tool that shows where your Claude Code and Codex limits go
If you build with Claude Code or Codex, you've probably hit your usage limit in the middle of something. That kept happening to me, so I stopped guessing and built a small tool to find out why.
It's called Token Leak Finder. It reads the session logs Claude Code and Codex already save on your computer, then gives you a one-page report. The report ranks the habits that use up the most of your limit and gives you a fix for each one.
What it found on my last 30 days:
- About 26% of my usage was avoidable.
- More than half (51.3%) came from one habit: keeping the same chat going too long without compacting, so the AI re-reads a huge conversation on every message.
- The fix was one line in my CLAUDE.md: when the chat gets near 150k tokens, write a short handoff, then /compact or start fresh.
How to run it (you need Node.js installed). Open a terminal and paste:
npx token-leak-finder --open
The report opens in your browser. Add --redact if you want to share a screenshot without your project names showing.
It's free and open source (MIT). It runs only on your computer: no signup, no network calls, and nothing gets uploaded.
Try it and reply with your biggest leak. I'm curious what shows up for you.
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Reco Jefferson
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I built a free tool that shows where your Claude Code and Codex limits go
Code-Free Creators
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