@xiangxiang103: Friends who just installed Codex, don't rush to use it—if you don't do these two things, it will only get dumber over time. This thread perfectly explains the "taming guide" I personally use: ① Let it first get to know you and your computer; list the 10 most important things to tell it in one sentence. ② Set up a dedicated workspace + two key documents (pitfall log / AGE…

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Summary

This tweet provides a detailed Codex "taming guide", suggesting that you first let Codex get to know the user and the computer, set up a dedicated workspace and create a pitfall log and AGES behavior guidelines document to improve its usage and avoid getting dumber over time.

Friends who just installed Codex, don't rush to use it—if you don't do these two things, it will only get dumber over time. This thread perfectly explains the "taming guide" I personally use: ① Let it first get to know you and your computer; list the 10 most important things to tell it in one sentence. ② Set up a dedicated workspace + two key documents (pitfall log / AGENTS behavior guidelines), so it gets smarter with use. Finally, I had it read the pitfall log, and it proactively avoided mistakes it had made before. Set it up just once, and save yourself half a year of detours.
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Cached at: 06/15/26, 12:54 AM

For those who just set up Codex, don’t rush into using it — without doing these two things, it will only get dumber over time.

Here’s the “taming guide” I use myself, explained thoroughly:

  1. Let it first get to know you and your computer — list the top 10 things you should hand over to it in one sentence;
  2. Define a dedicated workspace + two key documents (pitfall log / AGENTS behavior guidelines), so it gets smarter as you use it.

Finally, I had it read through the pitfall log, and it proactively avoided mistakes it had made before. Follow this setup once, and you’ll save yourself half a year of detours.

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