feat: add Base Tool

Author: QuantGeekDev

src/tools/BaseTool.ts

@@ -0,0 +1,32 @@
+import {
+  CallToolRequestSchema,
+  Tool,
+} from "@modelcontextprotocol/sdk/types.js";
+import { z } from "zod";
+
+export interface BaseTool {
+  name: string;
+  toolDefinition: Tool;
+  toolCall(request: z.infer<typeof CallToolRequestSchema>): Promise<any>;
+}
+
+export abstract class BaseToolImplementation implements BaseTool {
+  abstract name: string;
+  abstract toolDefinition: Tool;
+  abstract toolCall(
+    request: z.infer<typeof CallToolRequestSchema>
+  ): Promise<any>;
+
+  protected createSuccessResponse(data: any) {
+    return {
+      content: [{ type: "text", text: JSON.stringify(data) }],
+    };
+  }
+
+  protected createErrorResponse(error: Error | string) {
+    const message = error instanceof Error ? error.message : error;
+    return {
+      content: [{ type: "error", text: message }],
+    };
+  }
+}