listTools
Discover and access all development and debugging tools available on the Expo MCP Server for managing Expo-based React Native applications.
Instructions
List all available tools in this MCP server
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/index.ts:63-82 (handler)The handler function for the 'listTools' tool. It accesses the internal '_tools' property of the FastMCP server instance to retrieve the list of registered tools, formats them as a markdown-style list in a text content block, and returns it. Includes error handling with logging.
execute: async (_, { log }) => { try { // Get all the tools (this is a workaround since we don't have direct access to the tools list) const tools = Object.keys((server as any)["_tools"] || {}); return { content: [ { type: "text", text: `Available tools:\n${tools .map((tool) => `- ${tool}`) .join("\n")}`, }, ], }; } catch (error: any) { log.error(`Error listing tools: ${error.message}`); throw new Error(`Failed to list tools: ${error.message}`); } }, - src/index.ts:59-83 (registration)Registration of the 'listTools' tool using server.addTool(). Includes the tool name, description, empty parameters schema (no input required), and points to the inline handler function.
server.addTool({ name: "listTools", description: "List all available tools in this MCP server", parameters: z.object({}), execute: async (_, { log }) => { try { // Get all the tools (this is a workaround since we don't have direct access to the tools list) const tools = Object.keys((server as any)["_tools"] || {}); return { content: [ { type: "text", text: `Available tools:\n${tools .map((tool) => `- ${tool}`) .join("\n")}`, }, ], }; } catch (error: any) { log.error(`Error listing tools: ${error.message}`); throw new Error(`Failed to list tools: ${error.message}`); } }, }); - src/index.ts:62-62 (schema)The Zod schema for listTools input parameters, which is an empty object indicating no input parameters are required.
parameters: z.object({}),