Endpoints
A URL is fetched and indexed before the request answers, exactly as the
console does it — so a slow site is a slow request, and
passages says how
much was indexed. status is ready when the agent can cite it and failed
with error when the page could not be read (“requires JavaScript”, “returned
403”), which are different problems with different fixes.
text is capped at 200,000 characters. Files are uploaded in the console.