AI Negotiation Battle Simulator

A Real-Time Agent vs Agent Showdown with AG-UI!

Watch two AI agents battle it out in an epic used car negotiation! Built with Google ADK for the backend agents and AG-UI + CopilotKit for a jaw-dropping reactive frontend.

✨ Features

• 🤖 Dual AI Agents: Buyer vs Seller with distinct personalities and negotiation strategies
• 🔄 AG-UI Protocol: Real-time streaming of agent actions, tool calls, and state changes
• 💅 Jaw-Dropping UI: Animated battle arena with live negotiation timeline
• 🎭 8 Unique Personalities: 4 buyers + 4 sellers with different negotiation styles
• 📊 Generative UI: Custom React components render tool calls in real-time
• 🔗 Shared State: Agent state syncs bidirectionally with the frontend

🏗️ Architecture

┌─────────────────────────────────────────────────────────────────┐
│                    Next.js + CopilotKit Frontend                │
│   ┌─────────────┐    ┌──────────────┐    ┌─────────────┐        │
│   │ Battle Arena│    │  VS Display  │    │Chat Sidebar │        │
│   │   Timeline  │    │ Buyer/Seller │    │ (AG-UI)     │        │
│   └──────┬──────┘    └──────────────┘    └──────┬──────┘        │
└──────────┼────────────────────────────────────────┼─────────────┘
           │              AG-UI Events              │
           └────────────────────┬───────────────────┘
                                │
                    ┌───────────▼───────────┐
                    │   CopilotKit Runtime  │
                    │   (/api/copilotkit)   │
                    └───────────┬───────────┘
                                │ HTTP/SSE
                    ┌───────────▼───────────┐
                    │    FastAPI + AG-UI    │
                    │    ADK Middleware     │
                    └───────────┬───────────┘
                                │
                    ┌───────────▼─────────────┐
                    │  ADK Negotiation Agent  │
                    │  (Battle Master)        │
                    │                         │
                    │  Tools:                 │
                    │  • configure_negotiation│
                    │  • start_negotiation    │
                    │  • buyer_make_offer     │
                    │  • seller_respond       │
                    └─────────────────────────┘

🚀 Quick Start

Prerequisites

• Python 3.11+
• Node.js 18+
• Google AI API Key (Get one here)

1. Clone and Navigate

git clone https://github.com/Shubhamsaboo/awesome-llm-apps.git
cd advanced_ai_agents/multi_agent_apps/ai_negotiation_battle_simulator

2. Set Up Backend

cd backend
pip install -r requirements.txt

# Create .env file
echo "GOOGLE_API_KEY=your_api_key_here" > .env

# Start the backend
python agent.py

The backend will start on http://localhost:8000

3. Set Up Frontend

cd frontend
npm install

# Start the frontend
npm run dev

The frontend will start on http://localhost:3000

4. Start Negotiating! 🎮

Open http://localhost:3000 and tell the Battle Master:

• "Start a negotiation for a used car"
• "Show me available scenarios"
• "Use Desperate Dan as buyer and Shark Steve as seller"

🎭 Personalities

Buyers

Sellers

📁 Project Structure

ai_negotiation_battle_simulator/
├── README.md
├── .env.example
│
├── backend/                    # Python ADK + AG-UI
│   ├── agent.py               # Main agent with tools
│   ├── requirements.txt
│   ├── config/
│   │   ├── personalities.py   # 8 unique personalities
│   │   └── scenarios.py       # 3 negotiation scenarios
│   └── agents/
│       ├── buyer_agent.py
│       ├── seller_agent.py
│       └── orchestrator.py
│
└── frontend/                   # Next.js + CopilotKit
    ├── package.json
    ├── src/
    │   └── app/
    │       ├── layout.tsx     # CopilotKit provider
    │       ├── page.tsx       # Battle Arena UI
    │       ├── globals.css    # Battle animations
    │       └── api/
    │           └── copilotkit/
    │               └── route.ts  # CopilotKit runtime
    └── tailwind.config.js

🎬 Sample Battle

🔔 NEGOTIATION BEGINS: 2019 Honda Civic EX

📋 ASKING PRICE: $15,500

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

😎 COOL-HAND CASEY (Round 1):
"I've seen similar Civics go for less. $11,500 seems fair 
given the market. Cash in hand today."

🦈 SHARK STEVE (Round 1):
"$15,000. This car is pristine. I've got two other 
interested buyers coming this weekend."

😎 COOL-HAND CASEY (Round 2):
"$12,500 is my limit. Take it or I walk."

🦈 SHARK STEVE (Round 2):
*considers* "$14,000. Final offer."

😎 COOL-HAND CASEY (Round 3):
"$13,000. Meet me in the middle."

🦈 SHARK STEVE (Round 3):
"...$13,500 and you've got a deal."

😎 COOL-HAND CASEY (Round 4):
"$13,250. Final answer."

🦈 SHARK STEVE (Round 4):
"Deal. 🤝"

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

✅ DEAL CLOSED AT $13,250 🎉
   Buyer saved: $2,250 (14.5% off asking)

🧠 How It Works

1. User Request: You tell the Battle Master what kind of negotiation to run
2. Configuration: The agent sets up the scenario and personalities
3. Tool Calls: The agent alternates between buyer_make_offer and seller_respond tools
4. AG-UI Streaming: Each tool call streams to the frontend via AG-UI protocol
5. Generative UI: Custom React components render each offer/response beautifully
6. Shared State: The negotiation timeline updates in real-time
7. Outcome: Deal or no-deal is celebrated with animations!

📚 Learn More

• Google ADK Documentation
• AG-UI Protocol Docs
• CopilotKit Documentation

🤝 Contributing

Feel free to add:

• New negotiation scenarios (salary, apartment, contracts)
• Additional personality types
• More dramatic UI effects
• Cross-framework agents (LangChain, CrewAI via A2A)

May the best negotiator win! 🏆