--- title: Message Deletion layout: spec work-in-progress: true copyrights: - name: "Emerson Veenstra" email: "ircv3@emersonveenstra.net" period: "2022" --- ## Notes for implementing work-in-progress version This is a work-in-progress specification. Software implementing this work-in-progress specification MUST NOT use the unprefixed `delete-message` capability name. Instead, implementations SHOULD use the `draft/delete-message` capability name to be interoperable with other software implementing a compatible work-in-progress version. The final version of the specification will use an unprefixed capability name. ## Introduction This specification describes a standardized way to signal to clients that a previously sent message should no longer be displayed. ## Implementation Servers and clients implementing this spec MUST also implement the `message-tags` capability. To request message deletion, clients send a `DELETEMSG` to the channel or user of the original message. This `DELETEMSG` MUST have the tag `draft/delete-message` with a required value of the `msgid` of the message to delete. It MAY have an optional second parameter to specify a reason for deletion. Clients who receive a `DELETEMSG` with the `draft/delete-message` tag MUST remove all displayed content from the specified `msgid`. If the original message is ephemeral, clients SHOULD remove it entirely; otherwise they SHOULD replace it with the deletion reason, or a generic substitute. Servers MUST ensure that the user requesting deletion has sufficient privileges to delete the specified message. Servers MUST remove the content of the original message from all persistent history stores, and MAY replace the content with a generic deletion message if needed. ## Examples