Agent
An AI system that uses an LLM to decide and take actions in a loop, calling tools and reacting to results to accomplish a goal with minimal step-by-step human direction.
Analogy
Like a capable assistant you hand a goal to, who then figures out the steps, makes the calls, and reports back, instead of waiting for each instruction.
Why it matters
Agents are the building block behind autonomous automations that go beyond fixed if-this-then-that flows in tools like n8n and GoHighLevel.
In practice
An agent that reads a new lead, looks up the company, drafts a reply, and books a call without a human scripting each step.