Codex CLI exits successfully (exit code 0) but stops execution before performing any actual PR review steps.

What version of Codex CLI is running?

0.124.0

What subscription do you have?

Third-party provider (aihubmix)

Which model were you using?

gpt-5.4

What platform is your computer?

Linux 3.10.0-1160.119.1.el7.x86_64 x86_64 x86_64

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

codex exec --dangerously-bypass-approvals-and-sandbox --skip-git-repo-check "review https://xxx/projects/xxx/repos/xxx/pull-requests/xxx/overview"

What issue are you seeing?

I am running Codex inside a Docker container. With the same command and environment:

• Version 0.118.0 works as expected and completes the PR review workflow
• Version 0.124.0 stops after printing the planned steps and exits early

Command used:
codex exec --dangerously-bypass-approvals-and-sandbox --skip-git-repo-check "review https://xxx/projects/xxx/repos/xxx/pull-requests/xxx/overview"

Observed behavior (v0.124.0):

• Codex loads the review workflow and prints planned steps:
• Fetch PR metadata and state
• Load comments and dedupe context
• Inspect diff and impacted code
• Summarize review findings
• However, it does not actually execute these steps (no API calls, no repo fetch, no diff analysis)
• The process exits immediately afterward with exit code 0

Expected behavior:

• Codex should proceed to fetch PR metadata, load comments, retrieve diff, and perform the review

Actual behavior:

• Codex exits early without performing any actions, and without any error message

This looks like a silent early termination or skipped tool execution rather than a normal failure.

What steps can reproduce the bug?

1. Start a Docker container with Codex CLI installed
2. Install Codex CLI version 0.124.0
3. Run the following command:

codex exec --dangerously-bypass-approvals-and-sandbox --skip-git-repo-check "review https://xxx/projects/xxx/repos/xxx/pull-requests/xxx/overview"

1. Observe the output:

• Codex prints the planned steps (fetch PR metadata, load comments, inspect diff, etc.)
• No actual execution is performed (no API calls, no repo fetch, no diff analysis)

1. Check the process exit code:

• The process exits with code 0

1. Repeat the same steps with Codex CLI version 0.118.0:

• The workflow executes correctly and completes the PR review

What is the expected behavior?

_No response_

Additional information

_No response_