Python: [BREAKING]: removed display_name, renamed context_providers, middleware and AggregateContextProvider (#3139)

* removed display_name, renamed context_providers, middleware and AggregateContextProvider

* fixes

* fixed test

* testfix

* removed mistakenly put back test

* updated new test

* rename middlewares to middleware

* middleware fixes

python/packages/devui/frontend/src/components/features/agent/agent-details-modal.tsx

@@ -179,10 +179,10 @@ export function AgentDetailsModal({
               </DetailCard>
             )}
 
-            {/* Middleware */}
+            {/* Middlewares */}
             {agent.middleware && agent.middleware.length > 0 && (
               <DetailCard
-                title={`Middleware (${agent.middleware.length})`}
+                title={`Middlewares (${agent.middleware.length})`}
                 icon={<Package className="h-4 w-4 text-muted-foreground" />}
               >
                 <ul className="space-y-1">
@@ -195,20 +195,16 @@ export function AgentDetailsModal({
               </DetailCard>
             )}
 
-            {/* Context Providers */}
-            {agent.context_providers && agent.context_providers.length > 0 && (
+            {/* Context Provider */}
+            {agent.context_provider && (
               <DetailCard
-                title={`Context Providers (${agent.context_providers.length})`}
+                title="Context Provider"
                 icon={<Database className="h-4 w-4 text-muted-foreground" />}
                 className={!agent.middleware || agent.middleware.length === 0 ? "md:col-start-2" : ""}
               >
-                <ul className="space-y-1">
-                  {agent.context_providers.map((cp, index) => (
-                    <li key={index} className="font-mono text-xs text-foreground">
-                      • {cp}
-                    </li>
-                  ))}
-                </ul>
+                <div className="font-mono text-xs text-foreground">
+                  {agent.context_provider}
+                </div>
               </DetailCard>
             )}
           </div>

python/packages/devui/frontend/src/services/api.ts

@@ -42,7 +42,7 @@ interface BackendEntityInfo {
   instructions?: string;
   model_id?: string;
   chat_client_type?: string;
-  context_providers?: string[];
+  context_provider?: string[];
   middleware?: string[];
   // Workflow-specific fields (present when type === "workflow")
   executors?: string[];
@@ -77,7 +77,7 @@ const MAX_RETRY_ATTEMPTS = 10; // Max 10 retries (~30 seconds with exponential b
 function getBackendUrl(): string {
   const stored = localStorage.getItem("devui_backend_url");
   if (stored) return stored;
-  
+
   return DEFAULT_API_BASE_URL;
 }
 
@@ -221,13 +221,13 @@ class ApiClient {
           instructions: entity.instructions,
           model_id: entity.model_id,
           chat_client_type: entity.chat_client_type,
-          context_providers: entity.context_providers,
+          context_provider: entity.context_provider,
           middleware: entity.middleware,
         };
       } else {
         // Workflow - prefer executors field, fall back to tools for backward compatibility
         const executorList = entity.executors || entity.tools || [];
-        
+
         // Determine start_executor_id: use entity value, or first executor if it's a string
         let startExecutorId = entity.start_executor_id || "";
         if (!startExecutorId && executorList.length > 0) {
@@ -236,7 +236,7 @@ class ApiClient {
             startExecutorId = firstExecutor;
           }
         }
-        
+
         return {
           id: entity.id,
           name: entity.name,
@@ -493,10 +493,10 @@ class ApiClient {
         if (!resumeResponseId) {
           currentResponseId = storedState.responseId;
         }
-        
+
         lastSequenceNumber = storedState.lastSequenceNumber;
         lastMessageId = storedState.lastMessageId;
-        
+
         // Replay stored events only if we're not explicitly resuming
         // (explicit resume means the caller already has the events)
         if (!resumeResponseId) {

python/packages/devui/frontend/src/types/index.ts

@@ -39,8 +39,8 @@ export interface AgentInfo {
   instructions?: string;
   model_id?: string;
   chat_client_type?: string;
-  context_providers?: string[];
-  middleware?: string[];
+  context_provider?: string | undefined;
+  middleware?: string[] | undefined;
 }
 
 // JSON Schema types for workflow input