Send an email with to, subject, body, optional cc/bcc, html, and attachments (local file paths; unreadable files are skipped with a warning)
search_emails
Search emails with queries (single string or list of strings), max_results (per query when a list is passed). Results include Gmail message ID in hex and a direct Gmail web URL per hit
read_email
Read an email by uid (the hex ID from search_emails). Output includes the Gmail web URL at the top