Identify the caller
An agent or device needs an authorised identity and a task-specific boundary. Repository text, a model response or a client-provided role cannot create operating authority.
Build against an explicit contract.
A useful developer interface defines identity, scope, permitted operations and the evidence of an actual result. It does not begin with ambient access to a machine or account.
Specify the operation
Define the input, version, idempotency identity and the point where a human must review. Separate inspection from writes, publication and external execution.
Test the difficult cases
Verify expiry, revocation, denied data, duplicate callbacks and uncertain outcomes. The public site offers no executable CLI or native app download; an operational bridge requires its own accepted implementation.