SystemPrompt MCP Server

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; }