## Summary Splitting out this smaller fix from #2694 - fixes the sandbox permissions so Chat / read-only mode tool definition matches expectations ## Testing - [x] Tested locally <img width="1271" height="629" alt="Screenshot 2025-09-15 at 2 51 19 PM" src="https://github.com/user-attachments/assets/fcb247e4-30b6-4199-80d7-a2876d79ad7d" />
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Dependencies
Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this
macOS
Expects /usr/bin/sandbox-exec to be present.
Linux
Expects the binary containing codex-core to run the equivalent of codex debug landlock when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.
All Platforms
Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.