Fixing up ESM imports

Author: jake-danton

src/client/index.ts

@@ -43,7 +43,7 @@ import {
   ErrorCode,
   McpError,
 } from "../types.js";
-import Ajv from "ajv";
+import { Ajv } from 'ajv';
 import type { ValidateFunction } from "ajv";
 
 export type ClientOptions = ProtocolOptions & {
@@ -92,7 +92,7 @@ export class Client<
   private _capabilities: ClientCapabilities;
   private _instructions?: string;
   private _cachedToolOutputValidators: Map<string, ValidateFunction> = new Map();
-  private _ajv: InstanceType<typeof Ajv>;
+  private _ajv: Ajv;
 
   /**
    * Initializes this client with the given name and version information.

src/examples/client/simpleStreamableHttp.ts

@@ -20,7 +20,7 @@ import {
   ReadResourceResultSchema,
 } from '../../types.js';
 import { getDisplayName } from '../../shared/metadataUtils.js';
-import Ajv from "ajv";
+import { Ajv } from 'ajv';
 
 // Create readline interface for user input
 const readline = createInterface({
@@ -373,7 +373,7 @@ async function connect(url?: string): Promise<void> {
         if (!isValid) {
           console.log('❌ Validation errors:');
           validate.errors?.forEach(error => {
-            console.log(`  - ${error.dataPath || 'root'}: ${error.message}`);
+            console.log(`  - ${error.instancePath || 'root'}: ${error.message}`);
           });
 
           if (attempts < maxAttempts) {

src/server/index.ts

@@ -33,7 +33,7 @@ import {
   ServerResult,
   SUPPORTED_PROTOCOL_VERSIONS,
 } from "../types.js";
-import Ajv from "ajv";
+import { Ajv } from 'ajv';
 
 export type ServerOptions = ProtocolOptions & {
   /**
@@ -85,6 +85,7 @@ export class Server<
   private _clientVersion?: Implementation;
   private _capabilities: ServerCapabilities;
   private _instructions?: string;
+  private _ajv: Ajv;
 
   /**
    * Callback for when initialization has fully completed (i.e., the client has sent an `initialized` notification).
@@ -101,6 +102,7 @@ export class Server<
     super(options);
     this._capabilities = options?.capabilities ?? {};
     this._instructions = options?.instructions;
+    this._ajv = new Ajv({ code: { source: false } });
 
     this.setRequestHandler(InitializeRequestSchema, (request) =>
       this._oninitialize(request),
@@ -323,15 +325,13 @@ export class Server<
     // Validate the response content against the requested schema if action is "accept"
     if (result.action === "accept" && result.content) {
       try {
-        const ajv = new Ajv();
-        
-        const validate = ajv.compile(params.requestedSchema);
+        const validate = this._ajv.compile(params.requestedSchema);
         const isValid = validate(result.content);
 
         if (!isValid) {
           throw new McpError(
             ErrorCode.InvalidParams,
-            `Elicitation response content does not match requested schema: ${ajv.errorsText(validate.errors)}`,
+            `Elicitation response content does not match requested schema: ${this._ajv.errorsText(validate.errors)}`,
           );
         }
       } catch (error) {