Properties
annotations?
auth?
complete?
completion/complete request for
{ ref: { type: 'ref/resource', uri: <this template> }, argument: { name, value } }
routes to complete[name].
description?
disabled?
mimeType?
name?
size?
tags?
timeout?
title?
name.
ui?
uri
file://readme) or RFC 6570 template (e.g. user://{id}).