Ai Agents

PART 17 — AI Agents

Agents use the LLM to output structured JSON to trigger Python functions (Tools).

Example Trace (ReAct Loop): User: "Find out how much AAPL is, and email john@test.com"

Loop 1 (LLM Output):

{
  "thought": "I need to get the stock price of AAPL first.",
  "action": "get_stock_price",
  "args": {"ticker": "AAPL"}
}

System executes get_stock_price("AAPL") and gets $150. It appends this observation to the prompt.

Loop 2 (LLM Output):

{
  "thought": "Now I need to email John the price of $150.",
  "action": "send_email",
  "args": {"to": "john@test.com", "body": "AAPL is $150"}
}

System executes send_email(). Agent finishes.

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