Agents with real tool use

An agent is a control loop around a model, not a longer prompt. The model proposes an action, a tool runs it, the result comes back, and the model decides what to do next. That loop repeats until the task is done or a limit is reached.

Tools are where the real work happens. They query your database, call your internal APIs, run a script, or write a file. The model chooses which to use and with what arguments; the tools enforce what is allowed. Nothing runs that you have not permitted.

Guardrails keep it honest in production. We cap steps and cost, validate arguments before anything executes, log every action, and add checks that catch a wrong turn early. Evaluation runs on real tasks, so the loop stays reliable as it changes.