The existing `wire_format.rs` should share more types with the `codex-protocol` crate (like `AskForApproval` instead of maintaining a parallel `CodexToolCallApprovalPolicy` enum), so this PR moves `wire_format.rs` into `codex-protocol`, renaming it as `mcp-protocol.rs`. We also de-dupe types, where appropriate. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/openai/codex/pull/2423). * #2424 * __->__ #2423
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.