feat(frontend/builder): Add sub-graph update UX

autogpt_platform/frontend/src/app/(platform)/build/components/legacy-builder/BlocksControl.tsx

@@ -12,7 +12,14 @@ import {
   PopoverContent,
   PopoverTrigger,
 } from "@/components/__legacy__/ui/popover";
-import { Block, BlockUIType, SpecialBlockID } from "@/lib/autogpt-server-api";
+import {
+  Block,
+  BlockIORootSchema,
+  BlockUIType,
+  GraphInputSchema,
+  GraphOutputSchema,
+  SpecialBlockID,
+} from "@/lib/autogpt-server-api";
 import { MagnifyingGlassIcon, PlusIcon } from "@radix-ui/react-icons";
 import { IconToyBrick } from "@/components/__legacy__/ui/icons";
 import { getPrimaryCategoryColor } from "@/lib/utils";
@@ -24,8 +31,10 @@ import {
 import { GraphMeta } from "@/lib/autogpt-server-api";
 import jaro from "jaro-winkler";
 
-type _Block = Block & {
+type _Block = Omit<Block, "inputSchema" | "outputSchema"> & {
   uiKey?: string;
+  inputSchema: BlockIORootSchema | GraphInputSchema;
+  outputSchema: BlockIORootSchema | GraphOutputSchema;
   hardcodedValues?: Record<string, any>;
   _cached?: {
     blockName: string;

autogpt_platform/frontend/src/app/(platform)/build/components/legacy-builder/BuildActionBar.tsx

@@ -1,7 +1,7 @@
 import React from "react";
 import { cn } from "@/lib/utils";
 import { Button } from "@/components/__legacy__/ui/button";
-import { LogOut } from "lucide-react";
+import { AlertTriangle, LogOut } from "lucide-react";
 import { ClockIcon } from "@phosphor-icons/react";
 import { IconPlay, IconSquare } from "@/components/__legacy__/ui/icons";
 
@@ -13,6 +13,7 @@ interface Props {
   isRunning: boolean;
   isDisabled: boolean;
   className?: string;
+  resolutionModeActive?: boolean;
 }
 
 export const BuildActionBar: React.FC<Props> = ({
@@ -23,9 +24,30 @@ export const BuildActionBar: React.FC<Props> = ({
   isRunning,
   isDisabled,
   className,
+  resolutionModeActive = false,
 }) => {
   const buttonClasses =
     "flex items-center gap-2 text-sm font-medium md:text-lg";
+
+  // Show resolution mode message instead of action buttons
+  if (resolutionModeActive) {
+    return (
+      <div
+        className={cn(
+          "flex w-fit select-none items-center justify-center p-4",
+          className,
+        )}
+      >
+        <div className="flex items-center gap-3 rounded-lg border border-amber-300 bg-amber-50 px-4 py-3 dark:border-amber-700 dark:bg-amber-900/30">
+          <AlertTriangle className="h-5 w-5 text-amber-600 dark:text-amber-400" />
+          <span className="text-sm font-medium text-amber-800 dark:text-amber-200">
+            Remove incompatible connections to continue
+          </span>
+        </div>
+      </div>
+    );
+  }
+
   return (
     <div
       className={cn(

autogpt_platform/frontend/src/app/(platform)/build/components/legacy-builder/CustomEdge/CustomEdge.tsx

@@ -60,10 +60,16 @@ export function CustomEdge({
     targetY - 5,
   );
   const { deleteElements } = useReactFlow<Node, CustomEdge>();
-  const { visualizeBeads } = useContext(BuilderContext) ?? {
+  const builderContext = useContext(BuilderContext);
+  const { visualizeBeads } = builderContext ?? {
     visualizeBeads: "no",
   };
 
+  // Check if this edge is broken (during resolution mode)
+  const isBroken =
+    builderContext?.resolutionMode?.active &&
+    builderContext?.resolutionMode?.brokenEdgeIds?.includes(id);
+
   const onEdgeRemoveClick = () => {
     deleteElements({ edges: [{ id }] });
   };
@@ -171,12 +177,27 @@ export function CustomEdge({
 
   const middle = getPointForT(0.5);
 
+  // Determine edge color - red for broken edges
+  const baseColor = data?.edgeColor ?? "#555555";
+  const edgeColor = isBroken ? "#ef4444" : baseColor;
+  // Add opacity to hex color (99 = 60% opacity, 80 = 50% opacity)
+  const strokeColor = isBroken
+    ? `${edgeColor}99`
+    : selected
+      ? edgeColor
+      : `${edgeColor}80`;
+
   return (
     <>
       <BaseEdge
         path={svgPath}
         markerEnd={markerEnd}
-        className={`data-sentry-unmask transition-all duration-200 ${data?.isStatic ? "[stroke-dasharray:5_3]" : "[stroke-dasharray:0]"} [stroke-width:${data?.isStatic ? 2.5 : 2}px] hover:[stroke-width:${data?.isStatic ? 3.5 : 3}px] ${selected ? `[stroke:${data?.edgeColor ?? "#555555"}]` : `[stroke:${data?.edgeColor ?? "#555555"}80] hover:[stroke:${data?.edgeColor ?? "#555555"}]`}`}
+        style={{
+          stroke: strokeColor,
+          strokeWidth: data?.isStatic ? 2.5 : 2,
+          strokeDasharray: data?.isStatic ? "5 3" : undefined,
+        }}
+        className="data-sentry-unmask transition-all duration-200"
       />
       <path
         d={svgPath}