# Understanding System Prompts A good system prompt is crucial as it defines your agent's purpose, capabilities, and behavioral guidelines. It's the foundation that shapes how your agent will interact with users. A well-crafted system prompt should include: - **Role definition**: What the agent is and what it does - **Core capabilities**: What tasks the agent can perform - **Behavioral guidelines**: How the agent should respond and interact - **Constraints**: What the agent should not do or discuss - **Success criteria**: What makes the agent's responses good The system prompt acts as a set of instructions that guide the agent's behavior. It helps the agent understand its purpose and how it should interact with users. A clear and comprehensive system prompt will result in more consistent and helpful agent responses.