Agents aren't magic. They're:

1. a planner
2. an executor
3. a memory layer
4. a loop holding it together with duct tape

🤖 What an agent is

An AI agent is:

an LLM that can call tools, inspect results, decide next actions, and loop until done.

🛠️ Tools

Tools are functions the LLM can call:

• Python
• APIs
• SQL
• file operations

LLMs with tools = applications.
LLMs without tools = chatbots.

🔁 The loop

1. LLM decides action
2. Calls tool
3. Gets output
4. Reflects
5. Replans

The hard parts: retries, timeouts, bad JSON, hallucinated arguments, infinite loops.

🧠 Memory types

• short-term
• working memory
• long-term vector store
• episodic history
• procedural rules

🧱 Industry architecture

Production agents use:

• planner LLM
• executor
• tool registry
• memory layer
• safety checks
• observability / logs

🐸 Bob + Chad

Bob = planner.
Chad = executor.

Exactly how industry agents work.