692 lines
22 KiB
TypeScript
692 lines
22 KiB
TypeScript
import {
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ClientRequest,
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CompatibilityCallToolResult,
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CompatibilityCallToolResultSchema,
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CreateMessageResult,
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EmptyResultSchema,
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GetPromptResultSchema,
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ListPromptsResultSchema,
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ListResourcesResultSchema,
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ListResourceTemplatesResultSchema,
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ListToolsResultSchema,
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ReadResourceResultSchema,
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Resource,
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ResourceTemplate,
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Root,
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ServerNotification,
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Tool,
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LoggingLevel,
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} from "@modelcontextprotocol/sdk/types.js";
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import React, { Suspense, useEffect, useRef, useState } from "react";
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import { useConnection } from "./lib/hooks/useConnection";
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import { useDraggablePane } from "./lib/hooks/useDraggablePane";
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import { StdErrNotification } from "./lib/notificationTypes";
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import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
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import {
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Bell,
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Files,
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FolderTree,
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Hammer,
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Hash,
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MessageSquare,
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} from "lucide-react";
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import { toast } from "react-toastify";
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import { z } from "zod";
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import "./App.css";
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import ConsoleTab from "./components/ConsoleTab";
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import HistoryAndNotifications from "./components/History";
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import PingTab from "./components/PingTab";
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import PromptsTab, { Prompt } from "./components/PromptsTab";
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import ResourcesTab from "./components/ResourcesTab";
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import RootsTab from "./components/RootsTab";
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import SamplingTab, { PendingRequest } from "./components/SamplingTab";
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import Sidebar from "./components/Sidebar";
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import ToolsTab from "./components/ToolsTab";
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import { DEFAULT_INSPECTOR_CONFIG } from "./lib/constants";
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import { InspectorConfig } from "./lib/configurationTypes";
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const params = new URLSearchParams(window.location.search);
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const PROXY_PORT = params.get("proxyPort") ?? "3000";
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const PROXY_SERVER_URL = `http://${window.location.hostname}:${PROXY_PORT}`;
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const CONFIG_LOCAL_STORAGE_KEY = "inspectorConfig_v1";
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const App = () => {
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// Handle OAuth callback route
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const [resources, setResources] = useState<Resource[]>([]);
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const [resourceTemplates, setResourceTemplates] = useState<
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ResourceTemplate[]
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>([]);
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const [resourceContent, setResourceContent] = useState<string>("");
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const [prompts, setPrompts] = useState<Prompt[]>([]);
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const [promptContent, setPromptContent] = useState<string>("");
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const [tools, setTools] = useState<Tool[]>([]);
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const [toolResult, setToolResult] =
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useState<CompatibilityCallToolResult | null>(null);
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const [errors, setErrors] = useState<Record<string, string | null>>({
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resources: null,
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prompts: null,
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tools: null,
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});
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const [command, setCommand] = useState<string>(() => {
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return localStorage.getItem("lastCommand") || "mcp-server-everything";
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});
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const [args, setArgs] = useState<string>(() => {
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return localStorage.getItem("lastArgs") || "";
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});
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const [sseUrl, setSseUrl] = useState<string>(() => {
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return localStorage.getItem("lastSseUrl") || "http://localhost:3001/sse";
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});
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const [transportType, setTransportType] = useState<"stdio" | "sse">(() => {
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return (
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(localStorage.getItem("lastTransportType") as "stdio" | "sse") || "stdio"
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);
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});
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const [logLevel, setLogLevel] = useState<LoggingLevel>("debug");
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const [notifications, setNotifications] = useState<ServerNotification[]>([]);
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const [stdErrNotifications, setStdErrNotifications] = useState<
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StdErrNotification[]
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>([]);
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const [roots, setRoots] = useState<Root[]>([]);
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const [env, setEnv] = useState<Record<string, string>>({});
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const [config, setConfig] = useState<InspectorConfig>(() => {
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const savedConfig = localStorage.getItem(CONFIG_LOCAL_STORAGE_KEY);
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return savedConfig ? JSON.parse(savedConfig) : DEFAULT_INSPECTOR_CONFIG;
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});
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const [bearerToken, setBearerToken] = useState<string>(() => {
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return localStorage.getItem("lastBearerToken") || "";
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});
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const [pendingSampleRequests, setPendingSampleRequests] = useState<
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Array<
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PendingRequest & {
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resolve: (result: CreateMessageResult) => void;
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reject: (error: Error) => void;
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}
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>
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>([]);
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const nextRequestId = useRef(0);
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const rootsRef = useRef<Root[]>([]);
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const [selectedResource, setSelectedResource] = useState<Resource | null>(
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null,
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);
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const [resourceSubscriptions, setResourceSubscriptions] = useState<
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Set<string>
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>(new Set<string>());
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const [selectedPrompt, setSelectedPrompt] = useState<Prompt | null>(null);
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const [selectedTool, setSelectedTool] = useState<Tool | null>(null);
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const [nextResourceCursor, setNextResourceCursor] = useState<
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string | undefined
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>();
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const [nextResourceTemplateCursor, setNextResourceTemplateCursor] = useState<
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string | undefined
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>();
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const [nextPromptCursor, setNextPromptCursor] = useState<
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string | undefined
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>();
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const [nextToolCursor, setNextToolCursor] = useState<string | undefined>();
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const progressTokenRef = useRef(0);
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const { height: historyPaneHeight, handleDragStart } = useDraggablePane(300);
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const {
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connectionStatus,
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serverCapabilities,
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mcpClient,
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requestHistory,
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makeRequest: makeConnectionRequest,
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sendNotification,
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handleCompletion,
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completionsSupported,
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connect: connectMcpServer,
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} = useConnection({
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transportType,
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command,
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args,
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sseUrl,
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env,
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bearerToken,
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proxyServerUrl: PROXY_SERVER_URL,
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requestTimeout: config.MCP_SERVER_REQUEST_TIMEOUT.value as number,
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onNotification: (notification) => {
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setNotifications((prev) => [...prev, notification as ServerNotification]);
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},
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onStdErrNotification: (notification) => {
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setStdErrNotifications((prev) => [
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...prev,
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notification as StdErrNotification,
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]);
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},
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onPendingRequest: (request, resolve, reject) => {
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setPendingSampleRequests((prev) => [
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...prev,
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{ id: nextRequestId.current++, request, resolve, reject },
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]);
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},
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getRoots: () => rootsRef.current,
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});
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useEffect(() => {
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localStorage.setItem("lastCommand", command);
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}, [command]);
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useEffect(() => {
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localStorage.setItem("lastArgs", args);
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}, [args]);
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useEffect(() => {
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localStorage.setItem("lastSseUrl", sseUrl);
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}, [sseUrl]);
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useEffect(() => {
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localStorage.setItem("lastTransportType", transportType);
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}, [transportType]);
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useEffect(() => {
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localStorage.setItem("lastBearerToken", bearerToken);
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}, [bearerToken]);
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useEffect(() => {
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localStorage.setItem(CONFIG_LOCAL_STORAGE_KEY, JSON.stringify(config));
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}, [config]);
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// Auto-connect if serverUrl is provided in URL params (e.g. after OAuth callback)
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useEffect(() => {
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const serverUrl = params.get("serverUrl");
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if (serverUrl) {
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setSseUrl(serverUrl);
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setTransportType("sse");
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// Remove serverUrl from URL without reloading the page
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const newUrl = new URL(window.location.href);
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newUrl.searchParams.delete("serverUrl");
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window.history.replaceState({}, "", newUrl.toString());
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// Show success toast for OAuth
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toast.success("Successfully authenticated with OAuth");
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// Connect to the server
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connectMcpServer();
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}
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}, [connectMcpServer]);
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useEffect(() => {
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fetch(`${PROXY_SERVER_URL}/config`)
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.then((response) => response.json())
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.then((data) => {
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setEnv(data.defaultEnvironment);
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if (data.defaultCommand) {
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setCommand(data.defaultCommand);
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}
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if (data.defaultArgs) {
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setArgs(data.defaultArgs);
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}
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})
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.catch((error) =>
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console.error("Error fetching default environment:", error),
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);
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}, []);
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useEffect(() => {
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rootsRef.current = roots;
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}, [roots]);
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useEffect(() => {
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if (!window.location.hash) {
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window.location.hash = "resources";
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}
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}, []);
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const handleApproveSampling = (id: number, result: CreateMessageResult) => {
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setPendingSampleRequests((prev) => {
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const request = prev.find((r) => r.id === id);
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request?.resolve(result);
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return prev.filter((r) => r.id !== id);
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});
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};
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const handleRejectSampling = (id: number) => {
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setPendingSampleRequests((prev) => {
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const request = prev.find((r) => r.id === id);
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request?.reject(new Error("Sampling request rejected"));
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return prev.filter((r) => r.id !== id);
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});
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};
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const clearError = (tabKey: keyof typeof errors) => {
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setErrors((prev) => ({ ...prev, [tabKey]: null }));
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};
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const makeRequest = async <T extends z.ZodType>(
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request: ClientRequest,
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schema: T,
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tabKey?: keyof typeof errors,
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) => {
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try {
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const response = await makeConnectionRequest(request, schema);
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if (tabKey !== undefined) {
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clearError(tabKey);
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}
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return response;
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} catch (e) {
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const errorString = (e as Error).message ?? String(e);
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if (tabKey !== undefined) {
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setErrors((prev) => ({
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...prev,
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[tabKey]: errorString,
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}));
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}
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throw e;
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}
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};
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const listResources = async () => {
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const response = await makeRequest(
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{
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method: "resources/list" as const,
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params: nextResourceCursor ? { cursor: nextResourceCursor } : {},
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},
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ListResourcesResultSchema,
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"resources",
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);
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setResources(resources.concat(response.resources ?? []));
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setNextResourceCursor(response.nextCursor);
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};
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const listResourceTemplates = async () => {
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const response = await makeRequest(
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{
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method: "resources/templates/list" as const,
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params: nextResourceTemplateCursor
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? { cursor: nextResourceTemplateCursor }
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: {},
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},
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ListResourceTemplatesResultSchema,
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"resources",
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);
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setResourceTemplates(
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resourceTemplates.concat(response.resourceTemplates ?? []),
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);
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setNextResourceTemplateCursor(response.nextCursor);
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};
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const readResource = async (uri: string) => {
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const response = await makeRequest(
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{
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method: "resources/read" as const,
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params: { uri },
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},
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ReadResourceResultSchema,
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"resources",
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);
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setResourceContent(JSON.stringify(response, null, 2));
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};
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const subscribeToResource = async (uri: string) => {
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if (!resourceSubscriptions.has(uri)) {
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await makeRequest(
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{
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method: "resources/subscribe" as const,
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params: { uri },
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},
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z.object({}),
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"resources",
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);
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const clone = new Set(resourceSubscriptions);
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clone.add(uri);
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setResourceSubscriptions(clone);
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}
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};
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const unsubscribeFromResource = async (uri: string) => {
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if (resourceSubscriptions.has(uri)) {
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await makeRequest(
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{
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method: "resources/unsubscribe" as const,
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params: { uri },
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},
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z.object({}),
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"resources",
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);
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const clone = new Set(resourceSubscriptions);
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clone.delete(uri);
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setResourceSubscriptions(clone);
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}
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};
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const listPrompts = async () => {
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const response = await makeRequest(
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{
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method: "prompts/list" as const,
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params: nextPromptCursor ? { cursor: nextPromptCursor } : {},
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},
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ListPromptsResultSchema,
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"prompts",
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);
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setPrompts(response.prompts);
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setNextPromptCursor(response.nextCursor);
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};
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const getPrompt = async (name: string, args: Record<string, string> = {}) => {
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const response = await makeRequest(
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{
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method: "prompts/get" as const,
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params: { name, arguments: args },
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},
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GetPromptResultSchema,
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"prompts",
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);
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setPromptContent(JSON.stringify(response, null, 2));
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};
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const listTools = async () => {
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const response = await makeRequest(
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{
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method: "tools/list" as const,
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params: nextToolCursor ? { cursor: nextToolCursor } : {},
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},
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ListToolsResultSchema,
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"tools",
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);
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setTools(response.tools);
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setNextToolCursor(response.nextCursor);
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};
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const callTool = async (name: string, params: Record<string, unknown>) => {
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const response = await makeRequest(
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{
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method: "tools/call" as const,
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params: {
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name,
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arguments: params,
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_meta: {
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progressToken: progressTokenRef.current++,
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},
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},
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},
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CompatibilityCallToolResultSchema,
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"tools",
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);
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setToolResult(response);
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};
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const handleRootsChange = async () => {
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await sendNotification({ method: "notifications/roots/list_changed" });
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};
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const sendLogLevelRequest = async (level: LoggingLevel) => {
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await makeRequest(
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{
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method: "logging/setLevel" as const,
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params: { level },
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},
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z.object({}),
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);
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setLogLevel(level);
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};
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if (window.location.pathname === "/oauth/callback") {
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const OAuthCallback = React.lazy(
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() => import("./components/OAuthCallback"),
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);
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return (
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<Suspense fallback={<div>Loading...</div>}>
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<OAuthCallback />
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</Suspense>
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);
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}
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return (
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<div className="flex h-screen bg-background">
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<Sidebar
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connectionStatus={connectionStatus}
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transportType={transportType}
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setTransportType={setTransportType}
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command={command}
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setCommand={setCommand}
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args={args}
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setArgs={setArgs}
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sseUrl={sseUrl}
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setSseUrl={setSseUrl}
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env={env}
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setEnv={setEnv}
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config={config}
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setConfig={setConfig}
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bearerToken={bearerToken}
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setBearerToken={setBearerToken}
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onConnect={connectMcpServer}
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stdErrNotifications={stdErrNotifications}
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logLevel={logLevel}
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sendLogLevelRequest={sendLogLevelRequest}
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loggingSupported={!!serverCapabilities?.logging || false}
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/>
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<div className="flex-1 flex flex-col overflow-hidden">
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<div className="flex-1 overflow-auto">
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{mcpClient ? (
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<Tabs
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defaultValue={
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Object.keys(serverCapabilities ?? {}).includes(
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window.location.hash.slice(1),
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)
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? window.location.hash.slice(1)
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: serverCapabilities?.resources
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? "resources"
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: serverCapabilities?.prompts
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? "prompts"
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: serverCapabilities?.tools
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? "tools"
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: "ping"
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}
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className="w-full p-4"
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onValueChange={(value) => (window.location.hash = value)}
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>
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<TabsList className="mb-4 p-0">
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<TabsTrigger
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value="resources"
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disabled={!serverCapabilities?.resources}
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>
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<Files className="w-4 h-4 mr-2" />
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Resources
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</TabsTrigger>
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<TabsTrigger
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value="prompts"
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disabled={!serverCapabilities?.prompts}
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>
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<MessageSquare className="w-4 h-4 mr-2" />
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Prompts
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</TabsTrigger>
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<TabsTrigger
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value="tools"
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disabled={!serverCapabilities?.tools}
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>
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<Hammer className="w-4 h-4 mr-2" />
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Tools
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</TabsTrigger>
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<TabsTrigger value="ping">
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<Bell className="w-4 h-4 mr-2" />
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Ping
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</TabsTrigger>
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<TabsTrigger value="sampling" className="relative">
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<Hash className="w-4 h-4 mr-2" />
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Sampling
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{pendingSampleRequests.length > 0 && (
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<span className="absolute -top-1 -right-1 bg-red-500 text-white text-xs rounded-full h-4 w-4 flex items-center justify-center">
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{pendingSampleRequests.length}
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</span>
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)}
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</TabsTrigger>
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<TabsTrigger value="roots">
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<FolderTree className="w-4 h-4 mr-2" />
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Roots
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</TabsTrigger>
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</TabsList>
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<div className="w-full">
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{!serverCapabilities?.resources &&
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!serverCapabilities?.prompts &&
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!serverCapabilities?.tools ? (
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<div className="flex items-center justify-center p-4">
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<p className="text-lg text-gray-500">
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The connected server does not support any MCP capabilities
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</p>
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</div>
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) : (
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<>
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<ResourcesTab
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resources={resources}
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resourceTemplates={resourceTemplates}
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listResources={() => {
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clearError("resources");
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listResources();
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}}
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clearResources={() => {
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setResources([]);
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setNextResourceCursor(undefined);
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}}
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listResourceTemplates={() => {
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clearError("resources");
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listResourceTemplates();
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}}
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clearResourceTemplates={() => {
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setResourceTemplates([]);
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setNextResourceTemplateCursor(undefined);
|
|
}}
|
|
readResource={(uri) => {
|
|
clearError("resources");
|
|
readResource(uri);
|
|
}}
|
|
selectedResource={selectedResource}
|
|
setSelectedResource={(resource) => {
|
|
clearError("resources");
|
|
setSelectedResource(resource);
|
|
}}
|
|
resourceSubscriptionsSupported={
|
|
serverCapabilities?.resources?.subscribe || false
|
|
}
|
|
resourceSubscriptions={resourceSubscriptions}
|
|
subscribeToResource={(uri) => {
|
|
clearError("resources");
|
|
subscribeToResource(uri);
|
|
}}
|
|
unsubscribeFromResource={(uri) => {
|
|
clearError("resources");
|
|
unsubscribeFromResource(uri);
|
|
}}
|
|
handleCompletion={handleCompletion}
|
|
completionsSupported={completionsSupported}
|
|
resourceContent={resourceContent}
|
|
nextCursor={nextResourceCursor}
|
|
nextTemplateCursor={nextResourceTemplateCursor}
|
|
error={errors.resources}
|
|
/>
|
|
<PromptsTab
|
|
prompts={prompts}
|
|
listPrompts={() => {
|
|
clearError("prompts");
|
|
listPrompts();
|
|
}}
|
|
clearPrompts={() => {
|
|
setPrompts([]);
|
|
setNextPromptCursor(undefined);
|
|
}}
|
|
getPrompt={(name, args) => {
|
|
clearError("prompts");
|
|
getPrompt(name, args);
|
|
}}
|
|
selectedPrompt={selectedPrompt}
|
|
setSelectedPrompt={(prompt) => {
|
|
clearError("prompts");
|
|
setSelectedPrompt(prompt);
|
|
}}
|
|
handleCompletion={handleCompletion}
|
|
completionsSupported={completionsSupported}
|
|
promptContent={promptContent}
|
|
nextCursor={nextPromptCursor}
|
|
error={errors.prompts}
|
|
/>
|
|
<ToolsTab
|
|
tools={tools}
|
|
listTools={() => {
|
|
clearError("tools");
|
|
listTools();
|
|
}}
|
|
clearTools={() => {
|
|
setTools([]);
|
|
setNextToolCursor(undefined);
|
|
}}
|
|
callTool={(name, params) => {
|
|
clearError("tools");
|
|
callTool(name, params);
|
|
}}
|
|
selectedTool={selectedTool}
|
|
setSelectedTool={(tool) => {
|
|
clearError("tools");
|
|
setSelectedTool(tool);
|
|
setToolResult(null);
|
|
}}
|
|
toolResult={toolResult}
|
|
nextCursor={nextToolCursor}
|
|
error={errors.tools}
|
|
/>
|
|
<ConsoleTab />
|
|
<PingTab
|
|
onPingClick={() => {
|
|
void makeRequest(
|
|
{
|
|
method: "ping" as const,
|
|
},
|
|
EmptyResultSchema,
|
|
);
|
|
}}
|
|
/>
|
|
<SamplingTab
|
|
pendingRequests={pendingSampleRequests}
|
|
onApprove={handleApproveSampling}
|
|
onReject={handleRejectSampling}
|
|
/>
|
|
<RootsTab
|
|
roots={roots}
|
|
setRoots={setRoots}
|
|
onRootsChange={handleRootsChange}
|
|
/>
|
|
</>
|
|
)}
|
|
</div>
|
|
</Tabs>
|
|
) : (
|
|
<div className="flex items-center justify-center h-full">
|
|
<p className="text-lg text-gray-500">
|
|
Connect to an MCP server to start inspecting
|
|
</p>
|
|
</div>
|
|
)}
|
|
</div>
|
|
<div
|
|
className="relative border-t border-border"
|
|
style={{
|
|
height: `${historyPaneHeight}px`,
|
|
}}
|
|
>
|
|
<div
|
|
className="absolute w-full h-4 -top-2 cursor-row-resize flex items-center justify-center hover:bg-accent/50"
|
|
onMouseDown={handleDragStart}
|
|
>
|
|
<div className="w-8 h-1 rounded-full bg-border" />
|
|
</div>
|
|
<div className="h-full overflow-auto">
|
|
<HistoryAndNotifications
|
|
requestHistory={requestHistory}
|
|
serverNotifications={notifications}
|
|
/>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
);
|
|
};
|
|
|
|
export default App;
|