Business tasks rarely end with one question and one answer. They involve finding information, comparing options, calculating results, and preparing structured output. Multiple agents with distinct responsibilities can make these workflows easier to manage.
Why One Prompt Is Not Enough
- Long prompts can contain conflicting instructions as tasks accumulate.
- Intermediate errors are hard to detect and retry.
- Debugging becomes difficult when individual steps are invisible.
Core Orchestration Patterns
1. Planner – Worker – Critic
The planner breaks a task into steps. Workers perform focused jobs such as retrieval, calculation, and drafting. The critic validates results and sends incomplete work back for revision. Each role gets a shorter, clearer prompt.
2. Tool Use
Expose internal APIs, database queries, and calculators as tools. Use them for current information and arithmetic instead of relying on model memory. This reduces unsupported answers and makes results more predictable.
3. Human Review
Place a human confirmation step before consequential actions such as approving refunds or sending external messages. This preserves control while allowing routine work to move quickly.
Design principle: Add agents only where responsibilities are clearly separate, outputs can be validated, and failure conditions are defined. A verifiable workflow is easier to operate than an opaque system.
Observability
Trace each step's inputs, outputs, tool calls, and token costs. Production teams need to explain how an answer was produced and identify the stage that failed.
Clear roles, tools, human review, and traceability are the foundations of dependable multi-agent automation.