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

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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.
This commit is contained in:
Michael Bolin
2025-09-30 19:16:26 -07:00
committed by GitHub
parent 8dd771d217
commit 5881c0d6d4
73 changed files with 509 additions and 488 deletions
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2
codex-rs/core/src/rollout/recorder.rs
View File

@@ -6,7 +6,7 @@ use std::io::Error as IoError;
use std::path::Path;
use std::path::PathBuf;
use codex_protocol::mcp_protocol::ConversationId;
use codex_protocol::ConversationId;
use serde_json::Value;
use time::OffsetDateTime;
use time::format_description::FormatItem;

2
codex-rs/core/src/rollout/tests.rs
View File

@@ -18,7 +18,7 @@ use crate::rollout::list::Cursor;
use crate::rollout::list::get_conversation;
use crate::rollout::list::get_conversations;
use anyhow::Result;
use codex_protocol::mcp_protocol::ConversationId;
use codex_protocol::ConversationId;
use codex_protocol::models::ContentItem;
use codex_protocol::models::ResponseItem;
use codex_protocol::protocol::CompactedItem;