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Agent Anatomy

🤖 What Are AI Agents?⏱ 7 min⭐ 50 BASE XP

The Architecture of an Agent

A modern AI agent is not just an LLM-it is a software system where the LLM serves as the reasoning engine.

Core Components

  • The Brain (LLM): Evaluates state and predicts the next action.
  • The Tools (Actuators): Functions the agent can execute (e.g., search_web(), read_file()).
  • The Memory (State): Short-term context (the current prompt) and long-term memory (vector databases storing past experiences).
  • The Orchestrator: The control code (usually Python/TypeScript) that handles the while-loop, executes the tools, and feeds results back to the LLM.
🚧 Crucial Warning: Infinite loops are the enemy of agent design. Always implement a max_iterations limit in your orchestrator to prevent runaway costs.
SYNAPSE VERIFICATION
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What role does the LLM play in an agentic system?
The database
The user interface
The reasoning engine
The tool executor