A Scheduled Job whose configuration names this agent.
A User Routine targeting this agent — a person's own recurring ask.
An Entity Action binding: a data change on some entity dispatches this agent.
A Record Process that runs this agent across a set of records.
A step or relationship inside another agent that delegates here.
ExposeAsAction — anything that can run an Action can run this agent.
The substrates an agent can be invoked from.
Not an open-ended string: each arm has a runner behind it, and a pathway with no substrate is a pathway nobody can trace back to a row.