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.
2025-09-30 19:16:26 -07:00
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[package]
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name = "codex-app-server-protocol"
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2025-11-24 12:22:18 -08:00
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version.workspace = true
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edition.workspace = true
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license.workspace = true
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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.
2025-09-30 19:16:26 -07:00
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[lib]
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name = "codex_app_server_protocol"
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path = "src/lib.rs"
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[lints]
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workspace = true
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[dependencies]
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2025-10-20 11:45:11 -07:00
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anyhow = { workspace = true }
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clap = { workspace = true, features = ["derive"] }
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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.
2025-09-30 19:16:26 -07:00
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codex-protocol = { workspace = true }
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2025-12-12 15:25:22 -08:00
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codex-utils-absolute-path = { workspace = true }
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2025-11-04 17:02:39 -08:00
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mcp-types = { workspace = true }
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2025-10-20 11:45:11 -07:00
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schemars = { workspace = true }
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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.
2025-09-30 19:16:26 -07:00
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serde = { workspace = true, features = ["derive"] }
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serde_json = { workspace = true }
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strum_macros = { workspace = true }
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[app-server & core] introduce new codex error code and v2 app-server error events (#6938)
This PR does two things:
1. populate a new `codex_error_code` protocol in error events sent from
core to client;
2. old v1 core events `codex/event/stream_error` and `codex/event/error`
will now both become `error`. We also show codex error code for
turncompleted -> error status.
new events in app server test:
```
< {
< "method": "codex/event/stream_error",
< "params": {
< "conversationId": "019aa34c-0c14-70e0-9706-98520a760d67",
< "id": "0",
< "msg": {
< "codex_error_code": {
< "response_stream_disconnected": {
< "http_status_code": 401
< }
< },
< "message": "Reconnecting... 2/5",
< "type": "stream_error"
< }
< }
< }
{
< "method": "error",
< "params": {
< "error": {
< "codexErrorCode": {
< "responseStreamDisconnected": {
< "httpStatusCode": 401
< }
< },
< "message": "Reconnecting... 2/5"
< }
< }
< }
< {
< "method": "turn/completed",
< "params": {
< "turn": {
< "error": {
< "codexErrorCode": {
< "responseTooManyFailedAttempts": {
< "httpStatusCode": 401
< }
< },
< "message": "exceeded retry limit, last status: 401 Unauthorized, request id: 9a1b495a1a97ed3e-SJC"
< },
< "id": "0",
< "items": [],
< "status": "failed"
< }
< }
< }
```
2025-11-20 15:06:55 -08:00
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thiserror = { workspace = true }
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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.
2025-09-30 19:16:26 -07:00
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ts-rs = { workspace = true }
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uuid = { workspace = true, features = ["serde", "v7"] }
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[dev-dependencies]
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anyhow = { workspace = true }
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pretty_assertions = { workspace = true }
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