openai / openai/codex

Codex CLI 0.150.1 generated Portuguese /resume titles despite English prompts and English local settings.

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bug CLI session
Dominant language
Rust
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Description

What version of Codex CLI is running?

codex-cli 0.150.1

What subscription do you have?

some corporate plan provided my my empoyer, I don't know

Which model were you using?

gpt-5.5 xhigh

What platform is your computer?

Darwin 25.5.0 arm64

What terminal emulator and version are you using (if applicable)?

Ghostty

Codex doctor report
Codex CLI 0.150.1 generated Portuguese /resume titles despite English prompts and English local settings.

  Local settings:
  LANG=en_IE.UTF-8
  AppleLanguages=("en-IE")

  Examples:
  01a042c6-cb00-76a1-a05d-a1ff6698b7f5 -> "Rever falha do build E2E"
  01a0446e-6985-70c2-b48e-9625fe8c0780 -> "Rever alterações de código"

  Expected:
  Generated session titles should use the prompt/conversation language or explicit app language preference.
  They should not infer language from country/IP/timezone.
What issue are you seeing?

It seems like codex is using my location to decide the language, not only that is an invasion of privacy, it's also not really smart, a person currently being in a specific country doesn't mean that person speaks that country's official language.

What steps can reproduce the bug?

use codex from a country that has an official language than the one you use.

What is the expected behavior?

codex doesn't track my location and doesn't try to guess the language to use from is.

Additional information

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files or tests are identified in the report. Start by reproducing the Portuguese /resume titles under the stated English locale settings and trace how session titles choose a language; done means titles follow the prompt or explicit app language and do not infer language from location.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli, localization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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