Lesson 03 of 5 / Product

Does this need a prompt, a workflow, or an agent?

Choose the least autonomous pattern that can complete the real job. A prompt handles one bounded transformation; a workflow handles known stages; an agent earns a place only where the route must adapt inside a controlled boundary.

Build architecture decision 10 min PickBits working session

Your move

Choose the simplest durable pattern

Choose the least autonomous pattern that can complete the defined job.

Use this rule

Choose the least autonomous pattern that can complete the real job. A prompt handles one bounded transformation; a workflow handles known stages; an agent earns a place only where the route must adapt inside a controlled boundary.

Do this now

Three moves, in order.

  1. Write the job, inputs, decisions, allowed actions, and stop conditions.
  2. Test whether one prompt or a fixed sequence can complete it before adding autonomous choice.
  3. If an agent is still needed, bound its tools, budget, evidence, and human gates.

Build the artifact

Architecture decision

Copy these fields into a note, document, or sheet you already use.

Job The user outcome
Known stages Steps that do not need adaptive choice
Adaptive decision What genuinely changes the route
Allowed actions Tools and boundaries
Stop Budget, failed check, uncertainty, or human gate

Give AI the bounded job

Prompt from your artifact—not from vibes.

Recommend prompt, workflow, or agent from this job definition. Prefer the least autonomous option that meets it. Explain the one capability that requires each added layer and name the stop conditions.

Before you use it

The work leaves your hands only when:

  • Every layer exists for a named requirement.
  • The design has observable stop conditions.
  • External or irreversible actions have appropriate approval.