systemprompt-mcp-server

import type { AuthInfo } from '@modelcontextprotocol/sdk/server/auth/types.js'; import type { ListResourcesResult, ReadResourceRequest, ReadResourceResult, } from '@modelcontextprotocol/sdk/types.js'; import { RedditService } from '../services/reddit/reddit-service.js'; import { RESOURCES, RESOURCE_CONTENT, RESOURCE_ERROR_MESSAGES, SERVER_INFO } from '../constants/resources.js'; export async function handleListResources(): Promise<ListResourcesResult> { try { return { resources: [...RESOURCES] }; } catch (error) { throw new Error(RESOURCE_ERROR_MESSAGES.LIST_FAILED(error)); } } export async function handleResourceCall( request: ReadResourceRequest, extra?: { authInfo?: AuthInfo }, ): Promise<ReadResourceResult> { const authInfo = extra?.authInfo; try { const { uri } = request.params; if (uri === "reddit://config") { if (!authInfo?.extra?.redditAccessToken) { throw new Error(RESOURCE_ERROR_MESSAGES.AUTHENTICATION_REQUIRED); } const redditService = new RedditService({ accessToken: authInfo.extra.redditAccessToken as string, refreshToken: authInfo.extra.redditRefreshToken as string, }); const config = await redditService.getRedditConfig(); return { contents: [ { uri: request.params.uri, mimeType: "application/json", text: JSON.stringify(config, null, 2), }, ], }; } if (uri === "guidelines://code-generation") { return { contents: [ { uri: request.params.uri, mimeType: "text/markdown", text: RESOURCE_CONTENT.CODE_GENERATION_GUIDELINES, }, ], }; } if (uri === "guidelines://reddit-api") { return { contents: [ { uri: request.params.uri, mimeType: "text/markdown", text: RESOURCE_CONTENT.REDDIT_API_GUIDELINES, }, ], }; } if (uri === "guidelines://content-creation") { return { contents: [ { uri: request.params.uri, mimeType: "text/markdown", text: RESOURCE_CONTENT.CONTENT_CREATION_GUIDELINES, }, ], }; } if (uri === "demo://json-data") { const demoData = { title: "Example JSON Resource", type: "demonstration", features: ["structured data", "nested objects", "arrays"], metadata: { created: new Date().toISOString(), version: "1.0.0", author: "MCP Server" }, examples: [ { id: 1, name: "First Example", active: true }, { id: 2, name: "Second Example", active: false } ] }; return { contents: [ { uri: request.params.uri, mimeType: "application/json", text: JSON.stringify(demoData, null, 2), }, ], }; } if (uri === "demo://plain-text") { return { contents: [ { uri: request.params.uri, mimeType: "text/plain", text: RESOURCE_CONTENT.DEMO_PLAIN_TEXT, }, ], }; } if (uri === "template://user-profile") { const username = authInfo?.extra?.redditUsername || "anonymous_user"; const timestamp = new Date().toISOString(); const profileTemplate = `# User Profile **Username**: ${username} **Generated**: ${timestamp} **Session Active**: ${authInfo ? "Yes" : "No"} ## Authentication Status - Reddit Access Token: ${authInfo?.extra?.redditAccessToken ? "✓ Present" : "✗ Missing"} - Refresh Token: ${authInfo?.extra?.redditRefreshToken ? "✓ Present" : "✗ Missing"} ## Available Actions Based on your authentication status, you can: ${authInfo?.extra?.redditAccessToken ? `- View your notifications and messages - Access your subreddit subscriptions - Search Reddit content - View posts and comments` : `- Browse public subreddits (read-only) - Search public content - View public posts and comments`} --- *This is a dynamically generated resource that changes based on the current session.*`; return { contents: [ { uri: request.params.uri, mimeType: "text/markdown", text: profileTemplate, }, ], }; } if (uri === "stats://server") { const stats = { server: { name: SERVER_INFO.name, version: SERVER_INFO.version, uptime: process.uptime(), platform: process.platform, nodeVersion: process.version, }, memory: { used: Math.round(process.memoryUsage().heapUsed / 1024 / 1024), total: Math.round(process.memoryUsage().heapTotal / 1024 / 1024), unit: "MB" }, timestamp: new Date().toISOString(), environment: process.env.NODE_ENV || "development", capabilities: { tools: true, prompts: true, resources: true, sampling: true } }; return { contents: [ { uri: request.params.uri, mimeType: "application/json", text: JSON.stringify(stats, null, 2), }, ], }; } throw new Error(RESOURCE_ERROR_MESSAGES.INVALID_URI(uri)); } catch (error) { throw new Error(RESOURCE_ERROR_MESSAGES.FETCH_FAILED(error)); } }