echo
Send messages to receive identical responses for testing communication protocols or verifying message transmission in MCP server environments.
Instructions
Echo back the input message
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| message | Yes | Message to echo back |
Implementation Reference
- server.js:84-92 (handler)Handler for the 'echo' tool that echoes back the input message prefixed with 'Echo: ' in a text content block.
case 'echo': return { content: [ { type: 'text', text: `Echo: ${args.message}`, }, ], }; - server.js:33-42 (schema)Input schema for the 'echo' tool, requiring a 'message' string.
inputSchema: { type: 'object', properties: { message: { type: 'string', description: 'Message to echo back', }, }, required: ['message'], }, - server.js:30-43 (registration)Registration of the 'echo' tool in the ListTools response, including name, description, and input schema.
{ name: 'echo', description: 'Echo back the input message', inputSchema: { type: 'object', properties: { message: { type: 'string', description: 'Message to echo back', }, }, required: ['message'], }, },