Agent

Definition

An autonomous AI system designed to perceive its environment, make decisions, use digital tools, and execute multi-step tasks to achieve a specific goal.

An autonomous software entity driven by foundation models that perceives inputs, reasons through tasks, plans actions, and invokes external tools or APIs to achieve specific objectives.

Why it matters

AI agents move beyond simple conversation by actively performing work on behalf of users, such as scheduling meetings, processing invoices, or managing customer support workflows from start to finish.

Improvement tips

• Define narrow, clear boundaries and safety rails for your agent to prevent it from executing unintended actions.
• Implement human-in-the-loop validation for critical steps, such as sending emails to customers or making financial transactions.
• Log every action, thought, and tool call the agent makes to simplify debugging when errors occur.

Common mistakes

• Giving an agent unrestricted access to write to databases or execute code without safety filters.
• Assigning complex, open-ended goals to an agent without breaking them down into structured sub-tasks.
• Assuming the agent will handle unexpected errors or API failures gracefully without specific fallback rules.