splitnothing

Negotiation training app inspired by "Never Split the Difference" (Chris Voss). Practice real-world negotiation scenarios with AI-powered roleplay and get feedback on your technique.

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Features

• Scenario-based negotiation: Practice with realistic AI counterparts (car dealer, manager, landlord, etc.)
• Vercel AI SDK v5: Uses useChat() with streaming for natural, real-time conversation
• Prompt injection: Each session includes scenario + negotiation system prompt
• Negotiation feedback: (Planned) Get coaching on your last message using Vossian techniques (mirroring, labeling, tactical empathy, etc.)
• Simple UX: Chat window, scenario prompt, (future: scenario picker, feedback toggle)

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Tech Stack

• Framework: Next.js (App Router)
• AI SDK: Vercel AI SDK v5 (alpha)
• LLMs: OpenAI
• Runtime: Edge functions for low-latency streaming
• UI: TailwindCSS, shadcn/ui and Kibo UI

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Getting Started

1. Install dependencies

   bun install # or npm install, yarn, pnpm

2. Set environment variables

   Create a .env.local file with:

   OPENAI_API_KEY=sk-...

3. Run the dev server

   bun dev # or npm run dev, yarn dev, pnpm dev

4. Open http://localhost:3000/chat

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Usage

• Start a chat and describe the negotiation scenario you want to practice (e.g., "negotiating a raise").
• The AI will roleplay as your counterpart, using realistic negotiation tactics.
• (Planned) Toggle feedback to get coaching on your negotiation technique.

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Environment Variables

• OPENAI_API_KEY – Your OpenAI API key

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Example Scenarios

• Negotiating the price of a used car
• Requesting a raise from your manager
• Lowering rent with your landlord
• Freelance client contract discussion
• Corporate partnership terms