Nexus Playground Studio - Visual Intent Composer

Nexus Playground Studio is a drag-and-drop visual workflow builder for creating cross-chain automation and DeFi strategies using the Avail Nexus SDK.

🌟 Features

Visual Workflow Builder

• Drag & Drop Interface: Intuitive node-based workflow creation
• Real-time Preview: See your workflow as you build it
• Connection Validation: Ensures proper data flow between nodes

Pre-built Action Nodes

• Bridge: Move tokens between different blockchain networks
• Transfer: Send tokens to specific addresses
• Swap: Exchange tokens on DEX protocols
• Stake: Deposit tokens in DeFi protocols (Aave, Compound, etc.)
• Custom Contract: Execute any smart contract function
• Condition: Add conditional logic to workflows
• Trigger: Start point for workflow execution

Workflow Management

• Templates: Pre-built workflows for common use cases
• Save & Load: Persist workflows locally and via API
• Export/Import: Share workflows as JSON files
• Community Workflows: Discover and use public workflows

Execution Engine

• Real-time Execution: Execute workflows with live progress tracking
• Error Handling: Comprehensive error reporting and recovery
• Transaction Monitoring: Track all blockchain transactions
• Simulation: Test workflows before execution

🚀 Getting Started

Access Nexus Playground Studio

1. From the main app: Click "Open Nexus Playground Studio" button
2. Direct access: Navigate to /studio route
3. Development: Visit http://localhost:3000/studio

Creating Your First Workflow

1. Start with a Template:

   • Click "Templates" to browse pre-built workflows
   • Choose "Bridge & Stake" for a simple example
   • Customize parameters as needed

2. Build from Scratch:

   • Click "New Workflow"
   • Add a "Trigger" node to start
   • Drag additional nodes from the palette
   • Connect nodes by dragging between handles
   • Configure each node in the right panel

3. Execute Workflow:

   • Click "Execute" in the toolbar
   • Monitor progress in real-time
   • View results and transaction links

📋 Workflow Templates

Bridge & Stake

Bridge USDC from Ethereum to Polygon and automatically stake in Aave.

Trigger → Bridge (ETH→Polygon) → Stake (Aave)

Multi-Chain Arbitrage

Exploit price differences across multiple chains.

Trigger → Swap (ETH) → Bridge (ETH→Arbitrum) → Swap (Arbitrum)

Conditional Transfer

Transfer tokens only when certain conditions are met.

Trigger → Condition (balance > 100) → Transfer

🔧 Node Configuration

Bridge Node

• From Chain: Source blockchain network
• To Chain: Destination blockchain network
• Token: Asset to bridge (USDC, ETH, USDT)
• Amount: Amount to bridge or "fromPrevious"

Transfer Node

• Chain: Target blockchain network
• Token: Asset to transfer
• Amount: Transfer amount or "fromPrevious"
• Recipient: Destination wallet address

Swap Node

• Chain: Blockchain for the swap
• From Token: Input token
• To Token: Output token
• Amount: Swap amount or "fromPrevious"
• Slippage: Maximum slippage tolerance

Stake Node

• Chain: Blockchain network
• Token: Asset to stake
• Amount: Stake amount or "fromPrevious"
• Protocol: DeFi protocol (aave, compound, uniswap)

Custom Contract Node

• Chain: Target blockchain
• Contract Address: Smart contract address
• Function Name: Contract function to call
• Parameters: Function parameters as JSON array

🔗 Node Connections

Output Handles (Right side)

• amount: Token amount from the operation
• transaction: Transaction hash/receipt

Input Handles (Left side)

• trigger: Required connection to start execution
• amount: Optional amount input from previous node

Data Flow

• Use "fromPrevious" in amount fields to use output from connected nodes
• Chain multiple operations by connecting transaction outputs to trigger inputs

🎯 Use Cases

DeFi Automation

• Yield Farming: Bridge to high-yield chains and stake automatically
• Liquidity Management: Rebalance across multiple pools
• Arbitrage Bots: Exploit cross-chain price differences

Portfolio Management

• Diversification: Split assets across multiple chains
• Rebalancing: Maintain target allocations automatically
• Risk Management: Move assets based on market conditions

Cross-Chain Operations

• Gas Optimization: Move to cheaper chains for operations
• Protocol Access: Access DeFi protocols on different chains
• Yield Optimization: Find best rates across ecosystems

🔒 Security & Best Practices

Workflow Design

• Always test with small amounts first
• Use simulation before execution
• Set appropriate slippage tolerances
• Validate all addresses and parameters

Access Control

• Keep private keys secure
• Use hardware wallets for large amounts
• Review all transactions before signing
• Monitor execution closely

Error Handling

• Plan for failed transactions
• Set realistic timeouts
• Have backup strategies
• Monitor gas prices

🛠 API Integration

Workflow Execution API

POST /api/workflows/{id}/execute

Workflow Management

// Get workflows
GET /api/workflows

// Save workflow
POST /api/workflows

// Get templates
GET /api/workflows/templates

Integration Example

import { useWorkflowStore } from '@/store/workflowStore';

const { executeWorkflow, currentWorkflow } = useWorkflowStore();

// Execute current workflow
await executeWorkflow();

🤝 Contributing

Nexus Playground Studio is built with:

• React Flow: Visual workflow editor
• Zustand: State management
• Next.js: Full-stack framework
• Avail Nexus SDK: Cross-chain operations

To contribute:

1. Fork the repository
2. Create workflow templates
3. Add new node types
4. Improve the execution engine
5. Submit pull requests

📚 Resources

• Avail Nexus SDK Documentation
• React Flow Documentation
• Cross-Chain Development Guide
• DeFi Integration Examples

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