Merge pull request #517 from modelcontextprotocol/basil/ajv_downgrade

Fix Ajv import compatibility issue by downgrading to v6

Author: bhosmer-ant

package-lock.json

@@ -46,7 +46,7 @@
     "client": "tsx src/cli.ts client"
   },
   "dependencies": {
-    "ajv": "^8.17.1",
+    "ajv": "^6.12.6",
     "content-type": "^1.0.5",
     "cors": "^2.8.5",
     "cross-spawn": "^7.0.5",

package.json

@@ -43,7 +43,8 @@ import {
   ErrorCode,
   McpError,
 } from "../types.js";
-import { Ajv, type ValidateFunction } from "ajv";
+import Ajv from "ajv";
+import type { ValidateFunction } from "ajv";
 
 export type ClientOptions = ProtocolOptions & {
   /**
@@ -102,7 +103,7 @@ export class Client<
   ) {
     super(options);
     this._capabilities = options?.capabilities ?? {};
-    this._ajv = new Ajv({ strict: false, validateFormats: true });
+    this._ajv = new Ajv();
   }
 
   /**