READ · 3 operations · never changes data
sort is an exact, case-sensitive enum name from the real API — not a display label, and not camelCase or a --prefixed field. Common values: CreateTime (the default), LastContact, LastActivity, AssignTime, A2Z, Score. Anything else is rejected.
group_by/metric return grouped counts/sums instead of a record list, rather than paging through everything yourself — it refuses outright past a fixed scan limit rather than ever returning a silently-truncated number.
Notes, manual logs, calls, texts, emails and the activity timeline live in search_lead_activities; writes live in manage_leads.