Gemini CLI MCP Server

Instructions

Implementation Reference

• lib/fixed-mcp-tool.js:288-294 (handler)

  The handler function for the 'ping' tool, which returns a 'Pong!' response echoing any provided prompt or a default message.

  case "ping":
      return {
          content: [{
              type: "text",
              text: `Pong! ${args.prompt || 'Hello from gemini-cli MCP server!'}`
          }]
      };

• lib/fixed-mcp-tool.js:104-118 (schema)

  The schema definition for the 'ping' tool, including name, description, and optional input schema for a 'prompt' string.

  {
      name: "ping",
      description: "Echo",
      inputSchema: {
          type: "object",
          properties: {
              prompt: {
                  type: "string",
                  default: "",
                  description: "Message to echo "
              }
          },
          required: []
      }
  },

• lib/fixed-mcp-tool.js:217-219 (registration)

  Registration of all tools (including 'ping') via the ListToolsRequestSchema handler, which returns the tools array containing the ping tool definition.

  server.setRequestHandler(ListToolsRequestSchema, async () => {
      return { tools };
  });