ContextQMD
Back to Mastra

Agent with System Prompt

examples/basics/agents/system-prompt/README.md

2025-12-18711 B
Original Source

Agent with System Prompt

A simple example showing how to create an agent with system prompt.

Prerequisites

  • Node.js 22.13.0 or later
  • pnpm (recommended) or npm
  • OpenAI API key

Getting Started

  1. Clone the repository and navigate to the project directory:

    bash
    git clone https://github.com/mastra-ai/mastra
cd examples/basics/agents/system-prompt

  2. Copy the environment variables file and add your OpenAI API key:

    bash
    cp .env.example .env

    Then edit .env and add your OpenAI API key:

    env
    OPENAI_API_KEY=sk-your-api-key-here

  3. Install dependencies:

    pnpm install

  4. Run the example:

    bash
    pnpm start