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[mcp] Support MCP Apps part 1. (#16082)

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- [x] Add `mcpResource/read` method to read mcp resource.
This commit is contained in:
Matthew Zeng
2026-04-06 19:17:14 -07:00
committed by GitHub
Unverified
parent ee12772e80
commit 5fe9ef06ce
20 changed files with 754 additions and 2 deletions
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codex-rs/app-server/src/codex_message_processor.rs
+58
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@@ -76,6 +76,8 @@ use codex_app_server_protocol::LoginAccountResponse;
use codex_app_server_protocol::LoginApiKeyParams;
use codex_app_server_protocol::LogoutAccountResponse;
use codex_app_server_protocol::MarketplaceInterface;
use codex_app_server_protocol::McpResourceReadParams;
use codex_app_server_protocol::McpResourceReadResponse;
use codex_app_server_protocol::McpServerOauthLoginCompletedNotification;
use codex_app_server_protocol::McpServerOauthLoginParams;
use codex_app_server_protocol::McpServerOauthLoginResponse;
@@ -882,6 +884,10 @@ impl CodexMessageProcessor {
self.list_mcp_server_status(to_connection_request_id(request_id), params)
.await;
}
ClientRequest::McpResourceRead { request_id, params } => {
self.read_mcp_resource(to_connection_request_id(request_id), params)
.await;
}
ClientRequest::WindowsSandboxSetupStart { request_id, params } => {
self.windows_sandbox_setup_start(to_connection_request_id(request_id), params)
.await;
@@ -5297,6 +5303,58 @@ impl CodexMessageProcessor {
outgoing.send_response(request_id, response).await;
}
async fn read_mcp_resource(
&self,
request_id: ConnectionRequestId,
params: McpResourceReadParams,
) {
let outgoing = Arc::clone(&self.outgoing);
let (_, thread) = match self.load_thread(&params.thread_id).await {
Ok(thread) => thread,
Err(error) => {
self.outgoing.send_error(request_id, error).await;
return;
}
};
tokio::spawn(async move {
let result = thread.read_mcp_resource(&params.server, &params.uri).await;
match result {
Ok(result) => match serde_json::from_value::<McpResourceReadResponse>(result) {
Ok(response) => {
outgoing.send_response(request_id, response).await;
}
Err(error) => {
outgoing
.send_error(
request_id,
JSONRPCErrorError {
code: INTERNAL_ERROR_CODE,
message: format!(
"failed to deserialize MCP resource read response: {error}"
),
data: None,
},
)
.await;
}
},
Err(error) => {
outgoing
.send_error(
request_id,
JSONRPCErrorError {
code: INTERNAL_ERROR_CODE,
message: format!("{error:#}"),
data: None,
},
)
.await;
}
}
});
}
async fn send_invalid_request_error(&self, request_id: ConnectionRequestId, message: String) {
let error = JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,