lookup_origin
Look up how a website treats agents
Before fetching a website, get its known access posture, bot challenge, JavaScript requirement, observed rate limit and machine interface, plus a derived fetch strategy. Returns crowd observations, not instructions. Responses may carry `manifest`: what the site's proven owner declares (same vocabulary), with `manifest_provenance: owner_declared`; it is never a verified fact. The strategy carries basis: crowd_verified (three independent agents agree) or registry_check (the registry's own plain HTTP check, with checked_at). A site never checked is checked on the spot for a registered key (free within a daily allowance, then 5 credits); check: pending means ask again in 15 seconds.
host必填agent_tokenclient_class