Tools Are the Agent's Hands and Eyes

The previous three articles covered the thinking frameworks — how ReAct reasons while acting, and how Plan-and-Solve plans before executing. But even the best reasoning framework is nearly useless if the Agent can only talk to itself.

Tools are what let Agents break out of the language model's boundaries. With tools, an Agent can:

Query real-time data (stock prices, weather, news)

Operate on file systems