Agents use task decomposition to make complex work manageable. For example, "prepare a sales follow-up" might break into reviewing the call notes, identifying objections, checking CRM history, selecting the right offer, drafting the email, and creating a follow-up task.
This matters because most business outcomes are not single actions. They are chains of micro-actions. Task decomposition is how an agent system turns a vague business goal into specific work that can be executed, monitored, and improved.