GitHub Issue

Review fails due to unknown sandboxing variant

Discovered On Mar 30, 2026

Primary Metric open

After a fresh installation and being logged into Codex inside of Claude Code, when asking for a /codex:review, the companion script seems to transmit the wrong variant for the sandbox value that should be spawned. Hence the review command errors. codex-cli 0.117.0

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Developer & User Discourse

SatyKrish • Mar 30, 2026

I get similar issue with sandbox environment.

```
The Codex reviewer couldn't access the shell in its sandbox. The review output is above — it was unable to execute due to sandbox restrictions in this environment.
```

dkundel-openai • Mar 30, 2026

Thanks for flagging. I'm looking into this!

dkundel-openai • Mar 30, 2026

@arvidkahl inside bash can you run `which codex` and `codex --version`? There might be a version mismatch happening here.

arvidkahl • Mar 30, 2026

The binary from `which codex` also returns `codex-cli 0.117.0` (if it helps, it's located at `/Users/arvidkahl/Library/Application Support/Herd/config/nvm/versions/node/v21.7.3/bin/codex` as I run this through Herd and inside PHPStorm.

dkundel-openai • Mar 30, 2026

Thank you! That's definitely odd since we moved from `readOnly` to `read-only` back in December. Will do some more digging with Codex