feat(mcp): add arXiv MCP server for academic paper search

- What: add arxiv-mcp-server to MCP tools list
- What: add ARXIV_STORAGE_PATH env var for paper storage location
- What: default storage path is ~/.arxiv-papers
- What: add i18n translations for all locales (en, zh-TW, zh-CN, ja)
- Why: enable AI assistants to search and download arXiv papers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: trend-denny-lee

src/features/mcp_manager/config.rs

@@ -4,6 +4,7 @@ pub struct EnvConfig {
     pub github_host: Option<&'static str>,
     pub context7_api_key: Option<&'static str>,
     pub enable_cloudflare_mcp_raw: Option<&'static str>,
+    pub arxiv_storage_path: Option<&'static str>,
 }
 
 impl EnvConfig {
@@ -16,6 +17,7 @@ impl EnvConfig {
                 option_env!("enable_cloudflare_mcp"),
                 option_env!("ENABLE_CLOUDFLARE_MCP"),
             ),
+            arxiv_storage_path: option_env!("ARXIV_STORAGE_PATH"),
         }
     }
 

src/features/mcp_manager/tools.rs

@@ -205,6 +205,29 @@ pub fn get_available_tools(cli_type: CliType) -> Vec<McpTool> {
             },
             requires_interactive: false,
         },
+        McpTool {
+            name: "arxiv-mcp-server",
+            display_name_key: keys::MCP_TOOL_ARXIV,
+            install_args: {
+                let storage_path = ENV_CONFIG
+                    .arxiv_storage_path
+                    .unwrap_or("~/.arxiv-papers");
+                let mut args = vec!["arxiv-mcp-server".to_string()];
+                if let Some(sep) = separator {
+                    args.push(sep.to_string());
+                }
+                args.extend(vec![
+                    "uv".to_string(),
+                    "tool".to_string(),
+                    "run".to_string(),
+                    "arxiv-mcp-server".to_string(),
+                    "--storage-path".to_string(),
+                    storage_path.to_string(),
+                ]);
+                args
+            },
+            requires_interactive: false,
+        },
     ];
 
     // 只有在環境變數存在時才加入特定工具

src/i18n/locales/en.toml

@@ -233,6 +233,7 @@
 "mcp.tool.cloudflare_casb" = "Cloudflare One CASB"
 "mcp.tool.cloudflare_graphql" = "Cloudflare GraphQL"
 "mcp.tool.tailwindcss" = "Tailwind CSS (Utility-first CSS)"
+"mcp.tool.arxiv" = "arXiv (Academic Paper Search & Download)"
 
 "kubeconfig.header" = "Kubeconfig Window Isolation Manager"
 "kubeconfig.select_action" = "Select action"

src/i18n/locales/ja.toml

@@ -233,6 +233,7 @@
 "mcp.tool.cloudflare_casb" = "Cloudflare One CASB"
 "mcp.tool.cloudflare_graphql" = "Cloudflare GraphQL"
 "mcp.tool.tailwindcss" = "Tailwind CSS (CSS フレームワーク)"
+"mcp.tool.arxiv" = "arXiv (学術論文検索・ダウンロード)"
 
 "kubeconfig.header" = "Kubeconfig ウィンドウ分離マネージャー"
 "kubeconfig.select_action" = "操作を選択"

src/i18n/locales/zh-CN.toml

@@ -233,6 +233,7 @@
 "mcp.tool.cloudflare_casb" = "Cloudflare One CASB"
 "mcp.tool.cloudflare_graphql" = "Cloudflare GraphQL"
 "mcp.tool.tailwindcss" = "Tailwind CSS (CSS 框架)"
+"mcp.tool.arxiv" = "arXiv (学术论文搜索与下载)"
 
 "kubeconfig.header" = "Kubeconfig 窗口隔离管理器"
 "kubeconfig.select_action" = "请选择操作"

src/i18n/locales/zh-TW.toml

@@ -233,6 +233,7 @@
 "mcp.tool.cloudflare_casb" = "Cloudflare One CASB"
 "mcp.tool.cloudflare_graphql" = "Cloudflare GraphQL"
 "mcp.tool.tailwindcss" = "Tailwind CSS (CSS 框架)"
+"mcp.tool.arxiv" = "arXiv (學術論文搜尋與下載)"
 
 "kubeconfig.header" = "Kubeconfig 視窗隔離管理器"
 "kubeconfig.select_action" = "請選擇操作"

src/i18n/mod.rs

@@ -389,6 +389,7 @@ pub mod keys {
     pub const MCP_TOOL_CLOUDFLARE_CASB: &str = "mcp.tool.cloudflare_casb";
     pub const MCP_TOOL_CLOUDFLARE_GRAPHQL: &str = "mcp.tool.cloudflare_graphql";
     pub const MCP_TOOL_TAILWINDCSS: &str = "mcp.tool.tailwindcss";
+    pub const MCP_TOOL_ARXIV: &str = "mcp.tool.arxiv";
 
     // Kubeconfig Manager
     pub const KUBECONFIG_HEADER: &str = "kubeconfig.header";