RSS3 MCP Server

Instructions

Implementation Reference

• index.js:156-175 (handler)

  Handler function for the 'API-get-input-schema' tool. It iterates through the MCP tools derived from OpenAPI specs, matches the provided toolName (truncated), and returns the inputSchema of the matching method as JSON text content.

  if (name === "API-get-input-schema") {
  	for (const mcpToolWithClient of mcpToolWithClients) {
  		for (const [toolName, def] of Object.entries(
  			mcpToolWithClient.mcpTools.tools,
  		)) {
  			for (const method of def.methods) {
  				const toolNameWithMethod = `${toolName}-${method.name}`;
  				const truncatedToolName = toolNameWithMethod.slice(0, 64);
  				if (truncatedToolName === params.toolName) {
  					return {
  						content: [
  							{ type: "text", text: JSON.stringify(method.inputSchema) },
  						],
  					};
  				}
  			}
  		}
  	}
  	throw new Error(`Method ${params.toolName} not found`);
  }

• index.js:129-142 (registration)

  Registers the 'API-get-input-schema' tool in the listTools response by unshifting it to the tools array, providing its name, description, and inputSchema.

  tools.unshift({
  	name: "API-get-input-schema",
  	description:
  		"Get the input schema for a given API. We should always use this tool to get the input schema for a given API before calling the API.",
  	inputSchema: {
  		type: "object",
  		properties: {
  			toolName: {
  				type: "string",
  				description: "The name of the tool to get the input schema for",
  			},
  		},
  	},
  });

• index.js:133-141 (schema)

  Input schema definition for the 'API-get-input-schema' tool, specifying a 'toolName' string property.

  inputSchema: {
  	type: "object",
  	properties: {
  		toolName: {
  			type: "string",
  			description: "The name of the tool to get the input schema for",
  		},
  	},
  },