Use cases
Documents in, structured data out, styled documents back — here is that round trip as three concrete workflows, each one tool call.
An ugly supplier invoice goes in, a branded one comes out — extraction and render composed in one tool call, billed atomically.
Government filings, insurance claims, onboarding packets — the form is a PDF, the answers are JSON, fill_form is the missing verb.
A 40-page contract goes in, a one-page branded summary comes out — grounded terms on your letterhead, nothing retyped.