alibaba/nacos · error · UnsupportedOperationException

Protocol-neutral Agent maintenance is not supported by this

Error message

Protocol-neutral Agent maintenance is not supported by this implementation

What it means

Error "Protocol-neutral Agent maintenance is not supported by this implementation" thrown in alibaba/nacos.

Source

Thrown at maintainer-client/src/main/java/com/alibaba/nacos/maintainer/client/ai/AiMaintainerService.java:53

 *
 * @author xiweng.yy
 */
public interface AiMaintainerService extends McpMaintainerService, A2aMaintainerService {
    
    @Since("3.2.0")
    SkillMaintainerService skill();
    
    @Since("3.2.0")
    AgentSpecMaintainerService agentSpec();
    
    /**
     * Get the protocol-neutral Agent maintainer facade.
     *
     * @return Agent maintainer service
     */
    @Since("3.3.0")
    default AgentMaintainerService agent() {
        throw new UnsupportedOperationException(
            "Protocol-neutral Agent maintenance is not supported by this implementation");
    }
    
    @Since("3.2.0")
    McpMaintainerService mcp();
    
    @Since("3.2.0")
    A2aMaintainerService a2a();
    
    @Since("3.2.0")
    PromptMaintainerService prompt();
    
    @Since("3.2.0")
    PipelineMaintainerService pipeline();
    
    @Since("3.2.0")
    @Override
    default Page<McpServerBasicInfo> listMcpServer(String namespaceId, String mcpName, int pageNo,

View on GitHub (pinned to 9b989acdf1)

Solutions

1. Check the server/plugin configuration and enable the required module or use a supported alternative.

When it happens

Trigger: Thrown at maintainer-client/src/main/java/com/alibaba/nacos/maintainer/client/ai/AiMaintainerService.java:53 when the library encounters an invalid state.

Common situations: Calling protocol-neutral Agent maintenance on an implementation that does not support it.

AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14). Data as JSON: /api/errors/f253bb205a0196f1. Report an issue: GitHub.