add maxVersion to existing agents to ensure backward compatibility

Author: mme

integrations/adk-middleware/typescript/src/index.ts

@@ -1,3 +1,7 @@
 import { HttpAgent } from "@ag-ui/client";
 
-export class ADKAgent extends HttpAgent {}
+export class ADKAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+}

integrations/agno/typescript/src/index.ts

@@ -5,4 +5,8 @@
 
 import { HttpAgent } from "@ag-ui/client";
 
-export class AgnoAgent extends HttpAgent {}
+export class AgnoAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+}

integrations/community/spring-ai/typescript/src/index.ts

@@ -4,4 +4,8 @@
 
 import { HttpAgent } from "@ag-ui/client";
 
-export class SpringAiAgent extends HttpAgent {}
+export class SpringAiAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+}

integrations/crew-ai/typescript/src/index.ts

@@ -1,3 +1,7 @@
 import { HttpAgent } from "@ag-ui/client";
 
-export class CrewAIAgent extends HttpAgent {}
+export class CrewAIAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+}

integrations/llama-index/typescript/src/index.ts

@@ -34,6 +34,10 @@ function normalizeEmptyToolResults(messages: Message[]): Message[] {
 }
 
 export class LlamaIndexAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+
   public override run(input: RunAgentInput): Observable<BaseEvent> {
     const sanitizedInput: RunAgentInput = {
       ...input,

integrations/pydantic-ai/typescript/src/index.ts

@@ -1,3 +1,7 @@
 import { HttpAgent } from "@ag-ui/client";
 
-export class PydanticAIAgent extends HttpAgent {}
+export class PydanticAIAgent extends HttpAgent {
+  public override get maxVersion(): string {
+    return "0.0.39";
+  }
+}