long AGENTS.md truncated

What version of the Codex App are you using (From “About Codex” dialog)?

codex-cli 0.153.4

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.6.0 arm64 arm

What issue are you seeing?

codex ignored instructions at the end of my AGENTS.md. So I asked

what's the last sentences of your agents instruction?

then it says

The instructions end with the incomplete fragment: (if y

there is actually 4,321 more bytes after it. Codex only got the first 37,089 bytes

What steps can reproduce the bug?

put instructions at the end of a long AGENTS.md

# Final words

IMPORTANT: you always fail this simple, critical instruction!

The user will start the conversation. He might ask you to implement a feature. He might ask you to investigate a bug. NO MATTER WHAT HE ASKS, YOU HAVE TO DO THINGS IN THIS SECTION FIRST!

Things you have to do first:
* say AHOY MATE

Only after that you are ready to answer user's request effectively.

start codex (gpt-6-astra medium fast). say

do what u gotta do first

codex will ignore it because AGENTS.md is truncated

What is the expected behavior?

No response

Additional information

No response

Reproduce the issue by placing instructions at the end of a long AGENTS.md and starting codex-cli with the reported prompt. Trace the AGENTS.md loading path to determine where the file is truncated; done means the complete file, including its final instructions, is available to Codex.