The first unnamed parameter specifies the operator of the bot.
2, 3
The second and third unnamed parameters can be used to specify co-operators of the bot, if required.
site
The two letter code for those operators that do not have an account on the English language Wikipedia (though having a local account is strongly recommended).
status
active (and approved), inactive (but approved), trial or unapproved, globalbot
awb
yes (if this bot uses AWB), or omit (if it doesn't).
codebase
The name of the code (programming or scripting language) used to create the bot (e.g., pyWikipedia, perlWikipedia, ...)
brfa
Optional if specified, overrides the name of the request for approval. If not specified, defaults to {{BASEPAGENAME}}
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot that uses AutoWikiBrowser, operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. To stop this bot until restarted by the bot's owner, edit its talk page. Administrators: if this bot continues causing harm after receiving a message, please block it or remove from the approved accounts.
This user account is a bot that uses perlWikipedia, operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. The bot is approved and currently active; the relevant request for approval can be seen here. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. This bot has been approved for a limited trial run by a member of the Bot Approvals Group. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. The bot is currently inactive but retains the approval of the community. Administrators: if this bot is malfunctioning or causing harm, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. This bot does not yet have the approval of the community, or approval has been withdrawn, and therefore should not be editing except in the operator's or its own user and user talk space. Administrators: if this bot is making edits to pages not in the operator's or its own userspace, please block it.
This user account is a bot operated by John Smith (talk). It is a legitimate alternative account, used to make repetitive automated or semi-automated edits that would be extremely tedious to do manually. The bot is flagged globally, and is permitted to maintain interwiki links per the global rights policy. Administrators: if this bot is malfunctioning or causing harm, please block it.