A concrete, repeatable threshold for when to hand a workflow to an agent: perform the task manually about five times first, because that repetition yields enough pattern recognition to specify the automation. This turns 'should I automate this?' from a judgment call into a counted trigger.
It gives engineering teams a cheap, falsifiable decision rule for automation investment, reducing both premature automation (automating a misunderstood process) and permanent manual toil. It also implies the first five executions are a data-collection phase whose output is the spec/prompt/harness for the agent.
Automation readiness can be gated by a counted number of observed executions of a task, not by tool availability or enthusiasm; the manual run is the requirements-gathering artifact.
Use the 5-time rule: automate tasks after performing them manually five times.
Doing a manual software or operational task five times provides enough pattern recognition to automate it with AI.