tool-validation.ts•1.1 kB
import type { CallToolRequest, Tool } from "@modelcontextprotocol/sdk/types.js";
import { TOOLS } from "../constants/tools.js";
import type { JSONSchema7 } from "json-schema";
import { validateWithErrors } from "./validation.js";
/**
* Validates a tool request and returns the tool configuration if valid
*/
export function validateToolRequest(request: CallToolRequest): Tool {
if (!request.params?.name) {
throw new Error("Invalid tool request: missing tool name");
}
const tool = TOOLS.find((t: Tool) => t.name === request.params.name);
if (!tool) {
throw new Error(`Unknown tool: ${request.params.name}`);
}
// Validate arguments against the tool's schema if present
if (tool.inputSchema && request.params.arguments) {
validateWithErrors(
request.params.arguments,
tool.inputSchema as JSONSchema7
);
}
return tool;
}
/**
* Gets the schema for a tool by name
*/
export function getToolSchema(toolName: string): JSONSchema7 | undefined {
const tool = TOOLS.find((t: Tool) => t.name === toolName);
return tool?.inputSchema as JSONSchema7;
}