openai / openai/codex

reasoning summary is set to detailed against my will

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#45,870 0 comments 5 reactions 0 assignees View on GitHub

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app aws-bedrock bug config remote
Dominant language
Rust
Stars
125k
Forks
19.4k
PR merge metrics
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Description

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

26.908.70816

What subscription do you have?

Business

What platform is your computer?

Darwin 25.5.0 arm64 arm

What issue are you seeing?

reasoning summary is set to detailed against my will

What steps can reproduce the bug?

Mac Desktop app is injecting reasoning.summary 'detailed' to my SSH remote chats, even when the remote host has a ~/.codex/config.toml that explicitly disables with model_reasoning_summary = "none" and model_supports_reasoning_summaries = false

This is preventing the Desktop app from being able to use Amazon Bedrock, which does not support reasoning summaries. This started breaking last week, and it affects not only Astra but also Sol/Terra/Luna

What is the expected behavior?

No response

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

Reproduce the issue in a Mac Desktop SSH remote chat using a remote ~/.codex/config.toml with model_reasoning_summary = "none" and model_supports_reasoning_summaries = false. Trace where reasoning.summary is injected, then verify that the detailed summary is not sent and that Amazon Bedrock remote chats work with the disabling configuration.

Written by the indexing model from the issue text.

Assessment

Tech stack
aws, rust
Domain
backend, desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
48/100

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