Clearing Messages

Use /mod clear amount:<number> [member] to bulk-delete recent messages in the current channel. If you provide member, Kakashi deletes matching messages from that user; without it, the amount applies to recent channel messages generally.

The public slash option allows up to 100, and the command itself requires at least 4 messages, so use 4–100. You and Kakashi both need Manage Messages in that channel.

Discord's bulk-delete rules still apply to what can actually be removed. If Kakashi reports fewer deletions than requested, old messages or the optional member filter may be the reason.