fix: Update tck agent to indicate support for gRPC

Author: fjuma

tck/pom.xml

@@ -21,6 +21,11 @@
             <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>io.github.a2asdk</groupId>
+            <artifactId>a2a-java-sdk-reference-grpc</artifactId>
+            <version>${project.version}</version>
+        </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-rest-jackson</artifactId>
@@ -55,4 +60,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
+</project>

tck/src/main/java/io/a2a/tck/server/AgentCardProducer.java

@@ -1,5 +1,6 @@
 package io.a2a.tck.server;
 
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
@@ -9,7 +10,9 @@
 import io.a2a.server.PublicAgentCard;
 import io.a2a.spec.AgentCapabilities;
 import io.a2a.spec.AgentCard;
+import io.a2a.spec.AgentInterface;
 import io.a2a.spec.AgentSkill;
+import io.a2a.spec.TransportProtocol;
 
 @ApplicationScoped
 public class AgentCardProducer {
@@ -37,7 +40,10 @@ public AgentCard agentCard() {
                                 .tags(Collections.singletonList("hello world"))
                                 .examples(List.of("hi", "hello world"))
                                 .build()))
-                .protocolVersion("0.2.5")
+                .protocolVersion("0.3.0")
+                .additionalInterfaces(List.of(
+                        new AgentInterface(TransportProtocol.JSONRPC.asString(), "http://localhost:9999"),
+                        new AgentInterface(TransportProtocol.GRPC.asString(), "http://localhost:9000")))
                 .build();
     }
 }

tck/src/main/resources/application.properties

@@ -1 +1,3 @@
-%dev.quarkus.http.port=9999
+# The GrpcHandler @ApplicationScoped annotation is not compatible with Quarkus
+quarkus.arc.exclude-types=io.a2a.grpc.handler.GrpcHandler
+%dev.quarkus.http.port=9999