**Before:** <img width="745" height="375" alt="image" src="https://github.com/user-attachments/assets/d6c23562-b87f-4af9-8642-329aab8e594d" /> **After:** <img width="1042" height="354" alt="image" src="https://github.com/user-attachments/assets/c9a2413c-c945-4c34-8b7e-c6c9b8fbf762" /> Two changes: 1. only display if there is a `config.toml` that is skipped (i.e. if there is just `.codex/skills` but no `.codex/config.toml` we do not display the error) 2. clarify the implications and the fix in the error message.
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 support matrix is:
macOS
Expects /usr/bin/sandbox-exec to be present.
When using the workspace-write sandbox policy, the Seatbelt profile allows
writes under the configured writable roots while keeping .git (directory or
pointer file), the resolved gitdir: target, and .codex read-only.
Linux
Expects the binary containing codex-core to run the equivalent of codex sandbox linux (legacy alias: 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.