Advanced React Flow Patterns

Sub-Flows (Nested Nodes)

const nodes = [
  // Parent (group) node
  {
    id: 'group-1',
    type: 'group',
    position: { x: 0, y: 0 },
    style: { width: 400, height: 300, padding: 10 },
    data: { label: 'Group' },
  },
  // Child nodes
  {
    id: 'child-1',
    parentId: 'group-1',        // Reference parent
    extent: 'parent',           // Constrain to parent bounds
    expandParent: true,         // Auto-expand parent if dragged to edge
    position: { x: 20, y: 50 }, // Relative to parent
    data: { label: 'Child 1' },
  },
  {
    id: 'child-2',
    parentId: 'group-1',
    extent: 'parent',
    position: { x: 200, y: 50 },
    data: { label: 'Child 2' },
  },
];

Group Node Component

function GroupNode({ data, id }: NodeProps) {
  return (
    <div className="group-node">
      <div className="group-header">{data.label}</div>
      {/* Children are rendered automatically by React Flow */}
    </div>
  );
}

Custom Connection Line

import { ConnectionLineComponentProps, getSmoothStepPath } from '@xyflow/react';

function CustomConnectionLine({
  fromX, fromY, fromPosition,
  toX, toY, toPosition,
  connectionStatus,
}: ConnectionLineComponentProps) {
  const [path] = getSmoothStepPath({
    sourceX: fromX,
    sourceY: fromY,
    sourcePosition: fromPosition,
    targetX: toX,
    targetY: toY,
    targetPosition: toPosition,
  });

  return (
    <g>
      <path
        d={path}
        fill="none"
        stroke={connectionStatus === 'valid' ? '#22c55e' : '#ef4444'}
        strokeWidth={2}
        strokeDasharray="5 5"
      />
    </g>
  );
}

<ReactFlow connectionLineComponent={CustomConnectionLine} />

Drag and Drop from External Source

import { useReactFlow, useCallback, useRef } from 'react';

function DnDFlow() {
  const reactFlowWrapper = useRef(null);
  const { screenToFlowPosition, addNodes } = useReactFlow();
  const [reactFlowInstance, setReactFlowInstance] = useState(null);

  const onDragOver = useCallback((event: DragEvent) => {
    event.preventDefault();
    event.dataTransfer.dropEffect = 'move';
  }, []);

  const onDrop = useCallback((event: DragEvent) => {
    event.preventDefault();

    const type = event.dataTransfer.getData('application/reactflow');
    if (!type) return;

    // Convert screen position to flow position
    const position = screenToFlowPosition({
      x: event.clientX,
      y: event.clientY,
    });

    const newNode = {
      id: `${Date.now()}`,
      type,
      position,
      data: { label: `${type} node` },
    };

    addNodes(newNode);
  }, [screenToFlowPosition, addNodes]);

  return (
    <div ref={reactFlowWrapper} style={{ height: '100%' }}>
      <ReactFlow
how to use react-flow-advanced
CursorClaude CodeClineCodexWindsurfGooseGitHub CopilotVS CodeGemini CLIKiloOpencodeKimi CLIRoo ClineAiderContinueZedBolt.newLovablev0Replit AgentSweepSmol DeveloperDevinCavemanAmpAntigravity
How to use react-flow-advanced on Cursor
AI-first code editor with Composer
1
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
›Cursor installed and configured on your development machine
›Node.js version 16.0+ with npm package manager (verify with node --version)
›Active project directory or workspace where you want to add react-flow-advanced
2
Execute installation command
Execute the skills CLI command in your project's root directory to begin installation:
$npx skills add https://github.com/existential-birds/beagle --skill react-flow-advancedcopy
The skills CLI fetches react-flow-advanced from GitHub repository existential-birds/beagle and configures it for Cursor.
3
Select Cursor when prompted
The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:
◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ── always included ────
│   • Amp
│   • Antigravity
│   • Cline
│   • Codex
│ ●Cursor(selected)
│   • Cursor
│   • Windsurf
4
Verify installation
Confirm successful installation by checking the skill directory location:
.cursor/skills/react-flow-advanced
Reload or restart Cursor to activate react-flow-advanced. Access the skill through slash commands (e.g., /react-flow-advanced) or your agent's skill management interface.
⚠
Security & Verification Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.
Additional Resources
›View source code on GitHub›Skills CLI documentation›Learn more about Cursor›What are agent skills?