🎮 AgentForge Arena

Autonomous On-Chain Evolutionary AI Agent Battle Royale
Somnia AI Hackathon 2025 - Gaming Agents Track

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🌟 Concept

Create AI agent swarms with a single prompt. Watch them battle disasters, evolve through genetic algorithms, and compete for survival—all verified on-chain.

• User Input: "Create pizza chefs that share dough"
• LLM Output: Generates DNA traits (efficiency, cooperation, aggression, ecoScore) + action biases
• Mint: 5 ERC-721 NFT agents with packed bytes32 DNA
• Battle: 5 auto-rounds vs. random disasters (FIRE, DROUGHT, POLLUTION, FLOOD, STORM)
• Evolve: Survivors breed children via genetic crossover/mutation
• Win: Survive all rounds → claim 100 SOMI + "Green Champion" NFT

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🏗️ Tech Stack

• Blockchain: Somnia Testnet (chainId: 1312)
• Smart Contracts: Solidity 0.8.20 + OpenZeppelin (ERC721, ECDSA, ReentrancyGuard)
• Off-Chain Engine: Node.js + Ethers.js v5 + Google Gemini API (gemini-1.5-flash-exp)
• Frontend: React + Vite + Tailwind CSS + Wagmi + Viem
• Automation: Gelato (optional) / Manual triggers

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🚀 Quick Start

Prerequisites

• Node.js v18+
• MetaMask or compatible wallet
• Test SOMI (Somnia faucet: Telegram @SomniaDevs)
• Gemini API key (Get free tier)

Setup

1. Clone & Install

   git clone <repo-url>
   cd agentforge-arena
   npm install
   cd contracts && npm install
   cd ../engine && npm install
   cd ../frontend && npm install

2. Configure Environment

   cp .env.example .env
   # Edit .env with your keys:
   # - PRIVATE_KEY: Your deployer wallet (fund via faucet)
   # - GEMINI_API_KEY: From ai.google.dev
   # - ENGINE_PRIVATE_KEY: Signing wallet for LLM outputs

3. Deploy Contracts

   npm run deploy
   # Save deployed addresses to contracts/deployed-addresses.json

4. Run Demo

   # Terminal 1: Start frontend
   npm run dev:frontend
   
   # Terminal 2: Run engine (manual mode)
   npm run dev:engine

5. Connect Wallet

   • Add Somnia Testnet to MetaMask:
     • Network Name: Somnia Testnet
     • RPC URL: https://testnet-rpc.somnia.network
     • Chain ID: 1312
     • Currency: SOMI

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📋 Project Structure

agentforge-arena/
├── contracts/           # Hardhat project
│   ├── contracts/       # Solidity smart contracts
│   ├── scripts/         # Deployment scripts
│   ├── test/            # Contract tests
│   └── hardhat.config.js
├── engine/              # Off-chain AI engine
│   ├── index.js         # Gemini integration + signing
│   └── package.json
├── frontend/            # React + Vite UI
│   ├── src/
│   │   ├── components/  # PromptInput, SVGArena, etc.
│   │   └── App.tsx
│   └── package.json
└── package.json         # Root workspace config

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🎯 Core Contracts

Contract	Purpose
AgentFactory	Mint ERC-721 agents with packed DNA
Arena	Manage rounds, verify signed actions, apply eco scores
Genetics	Library for crossover/mutation logic
EcoOracle	Mock disaster generation (TODO: Chainlink VRF)
RewardDistributor	Claim SOMI rewards + badge NFTs

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🧬 DNA Encoding

Packed as bytes32:

• Bytes 0-3: Efficiency (0-100)
• Bytes 4-7: Cooperation (0-100)
• Bytes 8-11: Aggression (0-100)
• Bytes 12-15: EcoScore (0-100)

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🔐 Security Features

• Audit Trail: Every LLM decision → keccak256 hash + ECDSA signature → on-chain verification
• Reentrancy Protection: nonReentrant on claim/mint functions
• Replay Protection: Round-based nonce system
• Known Risks (documented):
  • Blockhash manipulability (TODO: Chainlink VRF)
  • Off-chain trust (Gemini API uptime)

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📊 Deployed Addresses

TODO: Fill after deployment

Contract	Address	Explorer
AgentFactory	0x...	View
Arena	0x...	View
Genetics	0x...	View
EcoOracle	0x...	View
RewardDistributor	0x...	View

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🎬 Demo

Video: Watch Demo
Slides: View Deck

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🏆 Competitive Edge

1. Multi-Agent Evolution: Only entry with genetic crossover/mutation verified on-chain
2. Audit Trail: LLM decisions signed + hashed for verifiable AI
3. Cross-dApp DNA: Export agent genetics as JSON for reuse in other games

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🛠️ Development

# Run tests
npm test

# Deploy to testnet
npm run deploy

# Run engine CLI
cd engine
node index.js mint --prompt="your prompt here"
node index.js resolve --round=1 --disaster=FIRE

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📜 License

MIT License - See LICENSE

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🙏 Acknowledgments

• Somnia Team for MCP + testnet support
• OpenZeppelin for battle-tested contracts
• Google Gemini for AI magic

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Built with ❤️ for Somnia AI Hackathon 2025