get_conversation_messagesreadmessages.viewFull message history of a single conversation, paginated.
| conversation_id * | string | Conversation UUID. |
| cursor | string? | Opaque pagination cursor. |
| limit | integer | Defaults to 50, max 200. |
Page of messages with id, sender, body, sent_at, read_at, attachments.
"Read the last 50 messages with @customer_handle."