<dependency>
    <groupId>com.agentclientprotocol</groupId>
    <artifactId>acp-spring-boot-starter</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.ai</groupId>
    <artifactId>spring-ai-starter-model-anthropic</artifactId>
</dependency>
<!-- swap for spring-ai-starter-model-openai, -ollama, ... -->

@Component
@AcpAgent(name = "spring-ai-chatbot", version = "1.0")
public class ChatbotAgentBean {

    private final ChatClient chatClient;

    // Spring AI autoconfigures ChatClient.Builder from the model starter on the classpath
    public ChatbotAgentBean(ChatClient.Builder builder) {
        ChatMemory chatMemory = MessageWindowChatMemory.builder().maxMessages(20).build();
        this.chatClient = builder
            .defaultSystem("You are a concise, friendly assistant running as an ACP agent inside an IDE.")
            .defaultAdvisors(MessageChatMemoryAdvisor.builder(chatMemory).build())
            .build();
    }

    @NewSession
    public NewSessionResponse newSession(NewSessionRequest request) {
        return new NewSessionResponse(UUID.randomUUID().toString(), null, null);
    }

    @Prompt
    public PromptResponse prompt(PromptRequest request, SyncPromptContext context) {
        // CONVERSATION_ID scopes the memory window to this ACP session
        String answer = chatClient.prompt()
            .user(request.text())
            .advisors(a -> a.param(ChatMemory.CONVERSATION_ID, context.getSessionId()))
            .call()
            .content();
        context.sendMessage(answer);
        return PromptResponse.endTurn();
    }
}

spring.main.banner-mode=off
spring.main.web-application-type=none
spring.main.keep-alive=true

spring.ai.anthropic.api-key=${ANTHROPIC_API_KEY}
spring.ai.anthropic.chat.options.model=claude-sonnet-4-6
spring.ai.anthropic.chat.options.max-tokens=1024

chatClient.prompt()
    .user(request.text())
    .advisors(a -> a.param(ChatMemory.CONVERSATION_ID, context.getSessionId()))
    .stream().content()
    .toStream().forEach(context::sendMessage);

export ANTHROPIC_API_KEY=sk-ant-...
./mvnw package -pl module-26-spring-ai-chatbot -q
./mvnw exec:java -pl module-26-spring-ai-chatbot