feat: disable conversational mode when input schema lacks messages property

cristipufu · claude · cristipufu · commit db600d8b37cb · 2026-02-14T12:02:36.000+02:00
Fetches the entrypoint schema on selection and disables the Conversational
mode card if the input schema has no top-level "messages" property.

Co-Authored-By: Claude Opus 4.6 &lt;noreply@anthropic.com&gt;
diff --git a/src/uipath/dev/server/frontend/src/components/runs/NewRunPanel.tsx b/src/uipath/dev/server/frontend/src/components/runs/NewRunPanel.tsx
@@ -1,18 +1,33 @@
 import { useEffect, useState } from "react";
 import { useRunStore } from "../../store/useRunStore";
 import { useHashRoute } from "../../hooks/useHashRoute";
+import { getEntrypointSchema } from "../../api/client";
 
 export default function NewRunPanel() {
   const { navigate } = useHashRoute();
   const entrypoints = useRunStore((s) => s.entrypoints);
   const [selectedEp, setSelectedEp] = useState("");
+  const [chatSupported, setChatSupported] = useState(true);
 
   useEffect(() => {
     if (!selectedEp && entrypoints.length > 0) {
       setSelectedEp(entrypoints[0]);
     }
   }, [entrypoints, selectedEp]);
 
+  useEffect(() => {
+    if (!selectedEp) return;
+    setChatSupported(true);
+    getEntrypointSchema(selectedEp)
+      .then((schema) => {
+        const props = (schema.input as any)?.properties;
+        setChatSupported(!!props?.messages);
+      })
+      .catch(() => {
+        setChatSupported(true); // don't block on schema fetch errors
+      });
+  }, [selectedEp]);
+
   const handleModeSelect = (mode: "run" | "chat") => {
     if (!selectedEp) return;
     navigate(`#/setup/${encodeURIComponent(selectedEp)}/${mode}`);
@@ -80,11 +95,15 @@ export default function NewRunPanel() {
           />
           <ModeCard
             title="Conversational"
-            description="Interactive chat session. Send messages and receive responses in real time."
+            description={
+              !chatSupported
+                ? "Requires a \"messages\" property in the input schema."
+                : "Interactive chat session. Send messages and receive responses in real time."
+            }
             icon={<ChatIcon />}
             color="var(--accent)"
             onClick={() => handleModeSelect("chat")}
-            disabled={!selectedEp}
+            disabled={!selectedEp || !chatSupported}
           />
         </div>
       </div>
diff --git a/src/uipath/dev/server/static/assets/index-Bf_jJ1I9.js b/src/uipath/dev/server/static/assets/index-Bf_jJ1I9.js
diff --git a/src/uipath/dev/server/static/index.html b/src/uipath/dev/server/static/index.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>UiPath Developer Console</title>
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-    <script type="module" crossorigin src="/assets/index-0ltKByQD.js"></script>
+    <script type="module" crossorigin src="/assets/index-Bf_jJ1I9.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-uNV7Cy8X.css">
   </head>
   <body>
