Use the lightest mode that fits
Start with regular chat for drafting, brainstorming, explanations, and quick answers. Move to a focused mode when the task needs current sources, deeper reasoning, a structured learning flow, or tool use.
Agent Mode for multi-step work
Agent Mode can plan steps and select available tools for a request. Give it a concrete goal, useful constraints, and a clear definition of done.
Stay in control
Review the result and its sources. An agent can make incorrect assumptions, choose an imperfect path, or produce an incomplete answer.