IRCv3.2 account-tag Extension

Copyright © 2013-2015 Mantas Mikulėnas <>

Unlimited redistribution and modification of this document is allowed provided that the above copyright notice and this permission notice remains intact.

The account-tag capability causes the server to add a message-tag containing the command sender’s services account to commands sent to the client that has requested this capability. It supersedes the identify-msg extension.

The tag MUST be named account, and contain the sender’s current services username. (If the user is not identified to any services account, the tag MUST NOT be sent.)

The tag MUST be added by the ircd to all commands sent by a user (e.g. PRIVMSG, MODE, NOTICE, and all others). The tag also MUST be added by the ircd to all numerics directly caused by the sender. For example, if the target user has “caller ID” enabled (e.g. user modes +R or +g in Charybdis), the tag MUST be added to numerics indicating blocked message attempts (numeric 718 aka RPL_UMODEMSG).

Example (demonstrated using the account-notify capability):

<-- :user PRIVMSG #atheme :Hello everyone.
<-- :user ACCOUNT hax0r
<-- @account=hax0r :user PRIVMSG #atheme :Now I'm logged in.
<-- @account=hax0r :user ACCOUNT bob
<-- @account=bob :user PRIVMSG #atheme :I switched accounts.

Relationship to other extensions

Rationale: This extension was proposed because identify-msg does not always provide enough information (e.g. the user may be logged into a different account); extended-join and account-notify do not work with private messages (unless both participants share at least one channel) or with messages sent from outside users to a -n channel; and metadata makes the client actively request someone’s account name (i.e. another client may send a private message and quickly switch accounts before the local client even has a chance to send a metadata query).

This extension supersedes identify-msg. This extension does not deprecate extended-join, as the latter also extends JOIN to send more information than just the account name. Similarly, this extension does not deprecate account-notify, as the latter provides real-time notifications while this extension does not.