From LLM to AI Agent: What Actually Happens When an Agent Uses a Tool?
This story is from 2026-09-04. It is preserved in the archive; the latest stories are on the live feed.
An LLM can generate an answer. But an AI Agent needs to do something beyond generating text. The important distinction is the layer around the model: LLM → Instructions → Tools → State/Memory → Permissions → Control Loop For example, imagine an agent that needs to retrieve the current weather. The…
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- 2026-09-04 19:20 · DEV Community — AI
From LLM to AI Agent: What Actually Happens When an Agent Uses a Tool?