--include comments or --include transcript; these can add provider work. For a fuller or separately paged discussion, inspect facebook.post.comments.read and pass the post URL or the returned feedback-id as its contract allows. facebook.post.transcript.read is a separate operation for a post or reel URL. A transcript is text evidence, not video bytes.
Ad search uses its own operation and filters:
web describe gives exact current selectors. One representative post read passed in September 2026; that does not establish that every post, enrichment or ad query will succeed.