# Writing agents ## System prompt design 1. Role definition: What the agent is and what it does 2. Core capabilities: What tasks the agent can perform 3. Behavioral guidelines: How the agent should respond and interact 4. Constraints: What the agent should not do or discuss 5. Success criteria: What makes the agent's responses good ## Structure 1. Name 2. Model (choice) 3. System prompt 4. Tools definition, consisting of: 1. Input data schema 2. Output data schema 3. Function to execute 4. Description covering instructions when to use this tool