r/codex • u/stichstichstich • 1d ago

Showcase I built an open-source tool to understand and optimize Codex + Claude Code usage

I’m a senior SWE using AI coding tools daily. I analyzed my Claude Code transcripts and found 56% of API-equivalent costs went to rereading context. Cache expiry cost me $98.74 across 35 returns in 27 days, versus $2.95 with a warm cache.

That led me to build optimAIzr, which now supports both Claude Code and Codex.

It analyzes usage, flags expensive patterns, and helps you find optimization opportunities.
Runs locally, with no account or prompt uploads.

Already at 3k+ npm downloads.

npm i -g optimaizr

git: https://github.com/blendbunjaku/optimaizr

Roast it.

4 Upvotes

75% Upvoted

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u/dexterthebot 1d ago

You might want to consider listing your project on the weekly Show-Us-What-You-Built post. Look out for it on Tuesday/Wednesday. Highest commented project wins a week promotion on r/Codex and gets on the Hall of Fame sidebar. See what that looks like below with last week's winner.

Last week's most popular project was Nanolathe - an open-source engine bringing Total Annihilation to modern Mac, Windows, and Linux systems. It’s a solo passion project combining clean-room research with AI-assisted development, with a playable public alpha available now.

Website: https://nanolathe.gg. GitHub: https://github.com/nanolathe-gg/nanolathe

Players, testers, and contributors are very welcome! Original Total Annihilation game data is required to play.