From 42d7e0894a36d20c03af57445b0e5d9a2ed35cfc Mon Sep 17 00:00:00 2001
From: Minoru Osuka <minoru.osuka@gmail.com>
Date: Sun, 27 Sep 2026 09:26:54 +0900
Subject: [PATCH] fix(mcp): migrate from rmcp's deprecated ServerInfo to
 ServerConfig

rmcp 3.4.0 added `ServerConfig` and deprecated the `ServerInfo` alias,
whose name collided with the protocol's `serverInfo` field. Dependabot's
#1226 moves rmcp from 3.2.0 to 3.4.1, and `cargo clippy -- -D warnings`
then rejects `LaurusMcpServer::get_info`.

Both aliases name `InitializeResult`, so the rename does not change
behavior. `ServerConfig` does not exist before 3.4.0, so raise the
workspace requirement to 3.4.1 and update the lock file to match.

Closes #1228
---
 Cargo.lock               | 8 ++++----
 Cargo.toml               | 2 +-
 laurus-mcp/src/server.rs | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 24a714bc1..4a03a7ef9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4783,9 +4783,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp"
-version = "3.2.0"
+version = "3.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42b6914fac0be956fe704a38239c3f44a9f841d1b06a5713d2f638065593f5b5"
+checksum = "5b6317cd8c13e3ec9033cf2aa5aa92cd743f0f4f8a93cddc42ea0ae6ce3b8898"
 dependencies = [
  "base64 0.23.1",
  "chrono",
@@ -4806,9 +4806,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp-macros"
-version = "3.2.0"
+version = "3.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdf1c49bd4d52014b94db0877410db273c2008f01628b0252a2e9460ad9b7fda"
+checksum = "d2ee366004e5f87c103be91c6c09337811517ae8d2f919ece9da7c21444b85c5"
 dependencies = [
  "darling 0.24.0",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 73e320206..ada0c65a8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ laurus = { version = "0.13.2", path = "laurus", default-features = false }
 laurus-mcp = { version = "0.13.2", path = "laurus-mcp" }
 laurus-server = { version = "0.13.2", path = "laurus-server" }
 prost = "0.14.4"
-rmcp = { version = "3.1.2", features = ["server", "transport-io"] }
+rmcp = { version = "3.4.1", features = ["server", "transport-io"] }
 rustyline = "18.0.1"
 serde = { version = "1.0.229", features = ["derive"] }
 serde_json = "1.0.151"
diff --git a/laurus-mcp/src/server.rs b/laurus-mcp/src/server.rs
index b2c8f42d0..682e80b30 100644
--- a/laurus-mcp/src/server.rs
+++ b/laurus-mcp/src/server.rs
@@ -1048,8 +1048,8 @@ impl LaurusMcpServer {
 
 #[tool_handler]
 impl ServerHandler for LaurusMcpServer {
-    fn get_info(&self) -> ServerInfo {
-        ServerInfo::new(ServerCapabilities::builder().enable_tools().build())
+    fn get_info(&self) -> ServerConfig {
+        ServerConfig::new(ServerCapabilities::builder().enable_tools().build())
             .with_server_info(Implementation::from_build_env())
             .with_instructions(
                 "Laurus search engine MCP server (gRPC client). \