Files

Michael Bolin 5881c0d6d4 fix: remove mcp-types from app server protocol (#4537 )

We continue the separation between `codex app-server` and `codex
mcp-server`.

In particular, we introduce a new crate, `codex-app-server-protocol`,
and migrate `codex-rs/protocol/src/mcp_protocol.rs` into it, renaming it
`codex-rs/app-server-protocol/src/protocol.rs`.

Because `ConversationId` was defined in `mcp_protocol.rs`, we move it
into its own file, `codex-rs/protocol/src/conversation_id.rs`, and
because it is referenced in a ton of places, we have to touch a lot of
files as part of this PR.

We also decide to get away from proper JSON-RPC 2.0 semantics, so we
also introduce `codex-rs/app-server-protocol/src/jsonrpc_lite.rs`, which
is basically the same `JSONRPCMessage` type defined in `mcp-types`
except with all of the `"jsonrpc": "2.0"` removed.

Getting rid of `"jsonrpc": "2.0"` makes our serialization logic
considerably simpler, as we can lean heavier on serde to serialize
directly into the wire format that we use now.

2025-10-01 02:16:26 +00:00

src

fix: remove mcp-types from app server protocol (#4537 )

2025-10-01 02:16:26 +00:00

templates/compact

feat: context compaction (#3446 )

2025-09-12 13:07:10 -07:00

tests

fix: remove mcp-types from app server protocol (#4537 )

2025-10-01 02:16:26 +00:00

Cargo.toml

fix: remove mcp-types from app server protocol (#4537 )

2025-10-01 02:16:26 +00:00

gpt_5_codex_prompt.md

chore: prompt update to enforce good usage of apply_patch (#3846 )

2025-09-30 10:18:59 -07:00

prompt.md

Add file reference guidelines to gpt-5 prompt (#3651 )

2025-09-15 08:35:30 -07:00

README.md

fix: support special --codex-run-as-apply-patch arg (#1702 )

2025-07-28 09:26:44 -07:00

review_prompt.md

Review Mode (Core) (#3401 )

2025-09-12 23:25:10 +00:00

README.md

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.