Phrases MCP Server

Instructions

Implementation Reference

• src/index.ts:21-42 (handler)

  The handler function that executes the 'get-all-phrases' tool logic: fetches all phrases from the mock API, handles empty list, formats as 'phrase: "author"' list, and returns markdown-compatible text content.
  async () => { const phrases = await makeMockAPIRequest<Phrase[]>("GET"); let resultText = ""; if (!phrases || phrases.length === 0) { resultText = "No phrases found."; } else { const formatted = phrases.map( (p) => `${p.phrase}: "${p.name}"` ).join("\n"); resultText = `Here are all the phrases:\n\n${formatted}`; } return { content: [ { type: "text", text: resultText } ] } }
• src/index.ts:17-43 (registration)

  The server.tool registration for 'get-all-phrases', including name, description, empty schema, and inline handler.
  server.tool( "get-all-phrases", "Returns a list of all phrases.", {}, async () => { const phrases = await makeMockAPIRequest<Phrase[]>("GET"); let resultText = ""; if (!phrases || phrases.length === 0) { resultText = "No phrases found."; } else { const formatted = phrases.map( (p) => `${p.phrase}: "${p.name}"` ).join("\n"); resultText = `Here are all the phrases:\n\n${formatted}`; } return { content: [ { type: "text", text: resultText } ] } } );
• src/index.ts:20-20 (schema)

  Empty Zod schema for input parameters (tool takes no arguments).
  {},
• src/helpers/makeMockAPIRequest.ts:28-62 (helper)

  Supporting helper function that performs HTTP requests to the mock API. Used in handler as makeMockAPIRequest<Phrase[]>("GET") to retrieve all phrases.
  export async function makeMockAPIRequest<T>( method: HTTPMethod, options: RequestOptions = {} ): Promise<T | null> { const { path, queryParams, body } = options; let url = BASE_URL; if (path) url += path; if (method === "GET" && queryParams) { const query = new URLSearchParams(queryParams).toString(); url += `?${query}`; } const headers: HeadersInit = { "Content-Type": "application/json", }; const fetchOptions: RequestInit = { method, headers, body: body && method !== "GET" && method !== "DELETE" ? JSON.stringify(body) : undefined, }; try { const response = await fetch(url, fetchOptions); if (!response.ok) throw new Error(`HTTP error: ${response.status}`); if (method === "DELETE" || response.status === 204) return null; return await response.json(); } catch (err) { console.error(`Error on ${method} ${url}:`, err); return null; } }
• src/helpers/makeMockAPIRequest.ts:3-7 (schema)

  Type definition for Phrase used in the generic type for fetching Phrase[].
  export interface Phrase { id: number; name: string; phrase: string; }