diff --git a/apps/ai-game-creator-shell/src-tauri/src/client_extensions.rs b/apps/ai-game-creator-shell/src-tauri/src/client_extensions.rs
index e146f41e7..5cf4c6f12 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/client_extensions.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/client_extensions.rs
@@ -1083,55 +1083,55 @@ pub(crate) fn prepare_enabled_client_skill_root(
 
 pub(crate) fn prepare_enabled_client_mcp_servers() -> Result<Vec<ClientMcpRuntimeServer>, String> {
     update_client_extension_index(|root, index| {
-    let mut servers = Vec::new();
-    let mut index_changed = false;
+        let mut servers = Vec::new();
+        let mut index_changed = false;
 
-    for item_index in 0..index.items.len() {
-        if index.items[item_index].extension_type != "mcp" || !index.items[item_index].enabled {
-            continue;
-        }
-        let source = index
-            .sources
-            .iter()
-            .find(|source| source.id == index.items[item_index].source_id)
-            .cloned();
-        let result = (|| {
-            if index.items[item_index].name == RESERVED_MCP_SERVER_NAME {
-                return Err("MCP Server 名称 agc_tools 为客户端内置保留名称".to_string());
+        for item_index in 0..index.items.len() {
+            if index.items[item_index].extension_type != "mcp" || !index.items[item_index].enabled {
+                continue;
             }
-            let source = source.ok_or_else(|| "MCP Server 缺少导入来源".to_string())?;
-            let config = index.items[item_index]
-                .mcp_config
-                .as_ref()
-                .ok_or_else(|| "MCP Server 缺少原生配置".to_string())?;
-            let source_file = root
-                .join(&source.storage_path)
-                .join(&index.items[item_index].source_relative_path);
-            let source_directory = source_file
-                .parent()
-                .ok_or_else(|| "MCP Server 来源路径无效".to_string())?;
-            normalize_mcp_runtime_config(config, source_directory)
-        })();
-        match result {
-            Ok(config) => {
-                if index.items[item_index].last_error.take().is_some() {
-                    index_changed = true;
+            let source = index
+                .sources
+                .iter()
+                .find(|source| source.id == index.items[item_index].source_id)
+                .cloned();
+            let result = (|| {
+                if index.items[item_index].name == RESERVED_MCP_SERVER_NAME {
+                    return Err("MCP Server 名称 agc_tools 为客户端内置保留名称".to_string());
                 }
-                servers.push(ClientMcpRuntimeServer {
-                    extension_id: index.items[item_index].id.clone(),
-                    name: index.items[item_index].name.clone(),
-                    config,
-                });
-            }
-            Err(error) => {
-                if index.items[item_index].last_error.as_deref() != Some(error.as_str()) {
-                    index.items[item_index].last_error = Some(error);
-                    index_changed = true;
+                let source = source.ok_or_else(|| "MCP Server 缺少导入来源".to_string())?;
+                let config = index.items[item_index]
+                    .mcp_config
+                    .as_ref()
+                    .ok_or_else(|| "MCP Server 缺少原生配置".to_string())?;
+                let source_file = root
+                    .join(&source.storage_path)
+                    .join(&index.items[item_index].source_relative_path);
+                let source_directory = source_file
+                    .parent()
+                    .ok_or_else(|| "MCP Server 来源路径无效".to_string())?;
+                normalize_mcp_runtime_config(config, source_directory)
+            })();
+            match result {
+                Ok(config) => {
+                    if index.items[item_index].last_error.take().is_some() {
+                        index_changed = true;
+                    }
+                    servers.push(ClientMcpRuntimeServer {
+                        extension_id: index.items[item_index].id.clone(),
+                        name: index.items[item_index].name.clone(),
+                        config,
+                    });
+                }
+                Err(error) => {
+                    if index.items[item_index].last_error.as_deref() != Some(error.as_str()) {
+                        index.items[item_index].last_error = Some(error);
+                        index_changed = true;
+                    }
                 }
             }
         }
-    }
-    Ok((servers, index_changed))
+        Ok((servers, index_changed))
     })
 }
 
@@ -1341,76 +1341,79 @@ fn import_client_extension_at(
             fingerprint: source_fingerprint,
         };
         update_client_extension_index_at(&root, |_, index| {
-        let mut used_names: BTreeMap<String, BTreeSet<String>> = BTreeMap::new();
-        for item in &index.items {
+            let mut used_names: BTreeMap<String, BTreeSet<String>> = BTreeMap::new();
+            for item in &index.items {
+                used_names
+                    .entry(item.extension_type.clone())
+                    .or_default()
+                    .insert(item.name.clone());
+            }
             used_names
-                .entry(item.extension_type.clone())
+                .entry("mcp".to_string())
                 .or_default()
-                .insert(item.name.clone());
-        }
-        used_names
-            .entry("mcp".to_string())
-            .or_default()
-            .insert(RESERVED_MCP_SERVER_NAME.to_string());
-        let mut imported = Vec::new();
-        let mut renamed = false;
-        let mut duplicate = false;
-        for candidate in candidates {
-            let extension_type = candidate.extension_type;
-            let enabled = extension_type != "unknown";
-            let duplicate_name = index
-                .items
-                .iter()
-                .find(|item| {
-                    item.extension_type == extension_type
-                        && item.fingerprint == candidate.fingerprint
-                })
-                .map(|item| item.name.clone());
-            duplicate |= duplicate_name.is_some();
-            let names = used_names.entry(extension_type.clone()).or_default();
-            let requested_name = duplicate_name
-                .as_deref()
-                .unwrap_or(&candidate.original_name);
-            let (name, was_renamed) = if extension_type == "skill" {
-                allocate_skill_name(requested_name, names)
-            } else {
-                allocate_name(requested_name, names)
-            };
-            renamed |= was_renamed;
-            let stored = StoredExtensionItem {
-                id: new_id("extension"),
-                source_id: source_id.clone(),
-                extension_type,
-                name,
-                original_name: candidate.original_name,
-                source_relative_path: candidate.source_relative_path,
-                enabled,
-                fingerprint: candidate.fingerprint,
-                last_error: None,
-                mcp_config: candidate.mcp_config,
-            };
-            index.items.push(stored);
-            imported.push(stored_item_view(
-                &ClientExtensionIndex {
-                    schema_version: index.schema_version.clone(),
-                    sources: index
-                        .sources
-                        .iter()
-                        .cloned()
-                        .chain(std::iter::once(source_record.clone()))
-                        .collect(),
-                    items: index.items.clone(),
+                .insert(RESERVED_MCP_SERVER_NAME.to_string());
+            let mut imported = Vec::new();
+            let mut renamed = false;
+            let mut duplicate = false;
+            for candidate in candidates {
+                let extension_type = candidate.extension_type;
+                let enabled = extension_type != "unknown";
+                let duplicate_name = index
+                    .items
+                    .iter()
+                    .find(|item| {
+                        item.extension_type == extension_type
+                            && item.fingerprint == candidate.fingerprint
+                    })
+                    .map(|item| item.name.clone());
+                duplicate |= duplicate_name.is_some();
+                let names = used_names.entry(extension_type.clone()).or_default();
+                let requested_name = duplicate_name
+                    .as_deref()
+                    .unwrap_or(&candidate.original_name);
+                let (name, was_renamed) = if extension_type == "skill" {
+                    allocate_skill_name(requested_name, names)
+                } else {
+                    allocate_name(requested_name, names)
+                };
+                renamed |= was_renamed;
+                let stored = StoredExtensionItem {
+                    id: new_id("extension"),
+                    source_id: source_id.clone(),
+                    extension_type,
+                    name,
+                    original_name: candidate.original_name,
+                    source_relative_path: candidate.source_relative_path,
+                    enabled,
+                    fingerprint: candidate.fingerprint,
+                    last_error: None,
+                    mcp_config: candidate.mcp_config,
+                };
+                index.items.push(stored);
+                imported.push(stored_item_view(
+                    &ClientExtensionIndex {
+                        schema_version: index.schema_version.clone(),
+                        sources: index
+                            .sources
+                            .iter()
+                            .cloned()
+                            .chain(std::iter::once(source_record.clone()))
+                            .collect(),
+                        items: index.items.clone(),
+                    },
+                    index.items.last().expect("stored extension item"),
+                ));
+            }
+            index.sources.push(source_record);
+            Ok((
+                ClientExtensionImportResult {
+                    imported,
+                    source_name: source_display_name,
+                    renamed,
+                    duplicate,
                 },
-                index.items.last().expect("stored extension item"),
-            ));
-        }
-        index.sources.push(source_record);
-        Ok((ClientExtensionImportResult {
-            imported,
-            source_name: source_display_name,
-            renamed,
-            duplicate,
-        }, true))
+                true,
+            ))
         })
     })();
     let _ = fs::remove_dir_all(&staging);
@@ -1433,7 +1436,10 @@ fn set_client_extension_enabled_at(
 ) -> Result<ClientExtensionItem, String> {
     invalidate_client_mcp_connection(id.trim())?;
     update_client_extension_index_at(root, |_, index| {
-        let item = index.items.iter_mut().find(|item| item.id == id.trim())
+        let item = index
+            .items
+            .iter_mut()
+            .find(|item| item.id == id.trim())
             .ok_or_else(|| "未找到客户端扩展".to_string())?;
         if item.extension_type == "unknown" && enabled {
             return Err("未识别扩展不能启用".to_string());
@@ -1466,40 +1472,43 @@ fn rename_client_extension_at(
 ) -> Result<ClientExtensionItem, String> {
     invalidate_client_mcp_connection(id.trim())?;
     update_client_extension_index_at(root, |_, index| {
-    let item_index = index.items.iter().position(|item| item.id == id.trim())
-        .ok_or_else(|| "未找到客户端扩展".to_string())?;
-    let extension_type = index.items[item_index].extension_type.clone();
-    let conflict = (extension_type == "mcp" && normalized == RESERVED_MCP_SERVER_NAME)
-        || index.items.iter().enumerate().any(|(index, item)| {
-            index != item_index
-                && item.extension_type == extension_type
-                && if extension_type == "skill" {
-                    item.name.eq_ignore_ascii_case(&normalized)
-                } else {
-                    item.name == normalized
-                }
-        });
-    let final_name = if conflict {
-        let mut names = index
+        let item_index = index
             .items
             .iter()
-            .filter(|item| item.extension_type == extension_type)
-            .map(|item| item.name.clone())
-            .collect::<BTreeSet<_>>();
-        if extension_type == "mcp" {
-            names.insert(RESERVED_MCP_SERVER_NAME.to_string());
-        }
-        if extension_type == "skill" {
-            allocate_skill_name(&normalized, &mut names).0
+            .position(|item| item.id == id.trim())
+            .ok_or_else(|| "未找到客户端扩展".to_string())?;
+        let extension_type = index.items[item_index].extension_type.clone();
+        let conflict = (extension_type == "mcp" && normalized == RESERVED_MCP_SERVER_NAME)
+            || index.items.iter().enumerate().any(|(index, item)| {
+                index != item_index
+                    && item.extension_type == extension_type
+                    && if extension_type == "skill" {
+                        item.name.eq_ignore_ascii_case(&normalized)
+                    } else {
+                        item.name == normalized
+                    }
+            });
+        let final_name = if conflict {
+            let mut names = index
+                .items
+                .iter()
+                .filter(|item| item.extension_type == extension_type)
+                .map(|item| item.name.clone())
+                .collect::<BTreeSet<_>>();
+            if extension_type == "mcp" {
+                names.insert(RESERVED_MCP_SERVER_NAME.to_string());
+            }
+            if extension_type == "skill" {
+                allocate_skill_name(&normalized, &mut names).0
+            } else {
+                allocate_name(&normalized, &mut names).0
+            }
         } else {
-            allocate_name(&normalized, &mut names).0
-        }
-    } else {
-        normalized.to_string()
-    };
-    index.items[item_index].name = final_name;
-    let view_item = index.items[item_index].clone();
-    Ok((stored_item_view(index, &view_item), true))
+            normalized.to_string()
+        };
+        index.items[item_index].name = final_name;
+        let view_item = index.items[item_index].clone();
+        Ok((stored_item_view(index, &view_item), true))
     })
 }
 
@@ -1512,7 +1521,10 @@ pub(crate) fn remove_client_extension(id: String) -> Result<(), String> {
 fn remove_client_extension_at(root: &Path, id: &str) -> Result<(), String> {
     invalidate_client_mcp_connection(id.trim())?;
     update_client_extension_index_at(root, |_, index| {
-        let item_index = index.items.iter().position(|item| item.id == id.trim())
+        let item_index = index
+            .items
+            .iter()
+            .position(|item| item.id == id.trim())
             .ok_or_else(|| "未找到客户端扩展".to_string())?;
         index.items.remove(item_index);
         Ok(((), true))
@@ -1616,7 +1628,10 @@ mod tests {
                 })
                 .collect::<BTreeSet<_>>();
             if case.id == "unknown" {
-                assert!(candidates.is_empty(), "unknown fixture must have no candidates");
+                assert!(
+                    candidates.is_empty(),
+                    "unknown fixture must have no candidates"
+                );
                 assert_eq!(expected, BTreeSet::from([("unknown", "unknown.bin")]));
             } else {
                 assert_eq!(actual, expected, "fixture case {}", case.id);
@@ -1690,14 +1705,15 @@ mod tests {
         let disabled = set_client_extension_enabled_at(&root, &first_id, false)
             .expect("disable imported skill");
         assert_eq!(disabled.status, "disabled");
-        let enabled = set_client_extension_enabled_at(&root, &first_id, true)
-            .expect("enable imported skill");
+        let enabled =
+            set_client_extension_enabled_at(&root, &first_id, true).expect("enable imported skill");
         assert_eq!(enabled.status, "enabled");
-        remove_client_extension_at(&root, &second.imported[0].id)
-            .expect("remove duplicate skill");
+        remove_client_extension_at(&root, &second.imported[0].id).expect("remove duplicate skill");
         let remaining = list_client_extensions_at(&root).expect("list remaining extensions");
         assert!(remaining.iter().any(|item| item.id == first_id));
-        assert!(!remaining.iter().any(|item| item.id == second.imported[0].id));
+        assert!(!remaining
+            .iter()
+            .any(|item| item.id == second.imported[0].id));
     }
 
     #[test]
@@ -2049,46 +2065,23 @@ mod tests {
         })
         .expect("insert MCP extension");
 
-        claim_client_mcp_connection_at(
-            &root,
-            [extension_id.to_string()],
-            "connection-old",
-        )
-        .expect("claim old MCP connection");
-        record_client_mcp_startup_status_at(
-            &root,
-            extension_id,
-            "connection-old",
-            "failed",
-        )
-        .expect("record old failure");
+        claim_client_mcp_connection_at(&root, [extension_id.to_string()], "connection-old")
+            .expect("claim old MCP connection");
+        record_client_mcp_startup_status_at(&root, extension_id, "connection-old", "failed")
+            .expect("record old failure");
 
-        claim_client_mcp_connection_at(
-            &root,
-            [extension_id.to_string()],
-            "connection-new",
-        )
-        .expect("claim new MCP connection");
-        record_client_mcp_startup_status_at(
-            &root,
-            extension_id,
-            "connection-old",
-            "ready",
-        )
-        .expect("ignore stale ready status");
+        claim_client_mcp_connection_at(&root, [extension_id.to_string()], "connection-new")
+            .expect("claim new MCP connection");
+        record_client_mcp_startup_status_at(&root, extension_id, "connection-old", "ready")
+            .expect("ignore stale ready status");
         let index = read_index(&root).expect("read status after stale callback");
         assert_eq!(
             index.items[0].last_error.as_deref(),
             Some("MCP Server 启动失败")
         );
 
-        record_client_mcp_startup_status_at(
-            &root,
-            extension_id,
-            "connection-new",
-            "ready",
-        )
-        .expect("record current ready status");
+        record_client_mcp_startup_status_at(&root, extension_id, "connection-new", "ready")
+            .expect("record current ready status");
         let index = read_index(&root).expect("read status after current callback");
         assert_eq!(index.items[0].last_error, None);
         release_client_mcp_connection([extension_id.to_string()], "connection-new")
@@ -2140,7 +2133,10 @@ mod tests {
             })
         });
         left.join().expect("join left update").expect("left update");
-        right.join().expect("join right update").expect("right update");
+        right
+            .join()
+            .expect("join right update")
+            .expect("right update");
 
         let index = read_index(&root).expect("read serialized index");
         let ids = index
diff --git a/apps/ai-game-creator-shell/src-tauri/src/main.rs b/apps/ai-game-creator-shell/src-tauri/src/main.rs
index 5e636cd14..73b2d42ec 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/main.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/main.rs
@@ -50,12 +50,12 @@ mod agent_native_tools;
 mod assets;
 mod browser;
 mod cli;
+mod client_extensions;
 mod collaboration;
 mod command_exec;
 mod command_output;
 mod command_sandbox;
 mod command_sandbox_trampoline;
-mod client_extensions;
 mod commands;
 mod config;
 mod context_compaction;
@@ -89,11 +89,11 @@ use agent_native_tools::*;
 use assets::*;
 use browser::*;
 use cli::*;
+use client_extensions::*;
 use collaboration::*;
 use command_exec::*;
 use command_output::*;
 use command_sandbox::*;
-use client_extensions::*;
 use commands::*;
 use config::*;
 use context_compaction::*;