Auto Moderation

35 filters over what people say, plus honeypots, auto purge, a slowmode manager and a local AI classifier — everything that acts before a moderator has to.

On this page

Auto Moderation is what somebody says, and the name they change it to. It never punishes anybody itself: every action runs through the same engine a moderator's command does, so a filter hit files a real numbered case in the same history. Arrivals are Security's job, not this system's.

arclo.gg/dashboard/auto-moderation
Nebula Collective/Auto Moderation

Auto Moderation

Thirty-five filters, honeypots, auto purge, a slowmode manager and AI moderation — all of it acting before a moderator has to.

Runs on every message, before a moderator has to.

Enabled
RulesPunishmentsSlowmodeAuto purgeHoneypotsAI moderationLoggingCommands

Caught today

47

Since midnight UTC.

Caught in total

12,480

Since it was switched on.

Violations · 24h

9

What the ladders count.

Rules5 / 30

Checked in order — the harsh rules belong at the top.

Add a rule
Scam links scam-links214 hits
Arclo's scam domain listDelete · Warn
Message spam message-spam88 hits
6 messages in 5sDelete · Mute 10m
Mass mentions mass-mentions31 hits
5 mentions in one messageDelete · Warn
Word filter Banned words402 hits
2 lists · except #staffDelete
Discord invites Discord invites
Any invite, other servers onlyDelete · Warn

35 filters · per-channel and per-role exemptions · test any rule before it goes live

Setting it up

  1. Switch it on

    Essentials → Auto Moderation.

  2. Add two or three rules, not thirty

    Start from a premade — there are eighteen — or build one from the filter picker. Invite links, mass mentions and message flood cover most of what a small server sees.

  3. Exempt your staff

    The Punishments tab leads with exemptions: roles, channels and members the system skips. A staff channel tripping a rule meant for #general is the fastest way to lose faith in a filter.

  4. Test it before you trust it

    The rule tester on the Rules tab runs the same function the live bot runs. If it passes there, it passes in your server.

The eight tabs

TabWhat lives there
RulesYour rules, the tester, word lists, Discord's own AutoMod, and the thread-notice sweep
PunishmentsExemptions, and what a hit actually does
SlowmodeThe adaptive slowmode manager
Auto purgeStanding keep this channel clean rules
HoneypotsTrap channels
AI moderationThe local classifier
LoggingThe Auto Moderation logger
Commands/automod and its operations

Filters

35 filters in 7 groups. A rule is one filter, its settings, its scope and its actions — so "no links, except in #media" is one rule rather than a global switch plus an exception list.

Words & phrasesWhat may and may not be said.
Banned wordsBlock a list of words and phrases.
Pattern matchBlock messages matching a regular expression.
Allowed words onlyBlock anything containing a word that isn't on the list.
FormattingShouting, walls of text, unreadable characters.
Excessive capsBlock SHOUTING.
Repeated textBlock aaaaaaaaaa and spam spam spam.
Zalgo textBlock corrupted text.
Very long messagesBlock walls of text.
Chat-clearing newlinesBlock messages that push the channel off screen.
Spoiler spamBlock excessive spoiler tags.
Too many emojiBlock emoji walls in one message.
Too many stickersLimit stickers in a message.
Too many attachmentsLimit files in one message.
MentionsPings, mass mentions and protected roles.
Mass mentionsBlock a message that pings a crowd.
@everyone attemptsBlock @everyone and @here from people who shouldn't.
Protected role mentionsStop specific roles being pinged.
Mention spamBlock many mentions across several messages.
Links & filesInvites, scams, masked links and attachments.
Discord invitesBlock invite links to other servers.
LinksBlock links — all of them, a denylist, or everything outside an allowlist.
Scam & phishing linksBlock known token stealers, fake Nitro and IP grabbers.
Masked linksBlock links hidden behind different text.
Unsafe attachmentsBlock file types nobody should be sharing.
Spam & floodingAnything measured over time rather than per message.
Duplicate messagesBlock the same message sent over and over.
Message spamBlock a member sending too many messages too fast.
Channel floodReact when a whole channel speeds up at once.
Attachment spamBlock a flood of files.
Link spamBlock a flood of links.
Emoji floodBlock emoji spam across several messages.
Reaction spamBlock somebody reacting to everything at once.
Cross-channel spamBlock the same person posting in many channels at once.
Violation thresholdAct when somebody trips other rules repeatedly.
MembersAccount age, names and avatars.
New accountsAct on messages from accounts made recently.
Username & nickname filterCatch banned words in names people change to.
No profile pictureAct on accounts still using the default avatar.
Channel rulesWhat a particular channel is for.
Media-only channelRequire every message to carry an image or a link.
Text-only channelRefuse attachments, embeds or stickers in a channel.

Evasion is folded away before matching

Lookalike characters, leetspeak and invisible spacing are normalised first, so 𝓯𝓾𝓬𝓴, f u c k and a word with a zero-width space inside it all hit the same word list.

Whole-word matching means whole words

A word list matching whole words will not flag raccoon for containing a slur, and will not flag Scunthorpe. That is the point — but it means a filter set to whole words genuinely will not catch a word glued to another one.

#automod-log

ArcloBOTToday at 14:32

Message filtered

Member

@loud.tim

Rule

Discord invites

Action

Deleted · Warned

Case

#1283

Message

join my server discord.gg/…

Auto Moderation · #general

A filter hit, logged. It opened a real case, so it is in that member's history too.

Scope and exemptions

Per rule
Each rule names the channels, categories and roles it applies to or skips. Exemptions on a rule are about that rule.
Server-wide
The Punishments tab's exemption card applies to everything: roles, channels and specific members.
Ignore bots
On by default for most filters. A trap that eats the music bot's now-playing card gets switched off, and then nothing is protected.

What a hit does

Eighteen action types, run in order: delete the message, warn, mute, kick, ban, softban, add or remove roles, set a member's whole role list (quarantine, in one call so there is never a window with no roles), add a reaction to flag it, slow the channel down, DM the member, notify staff, or simply count it.

  • Violation threshold is a filter of its own: “N violations in M minutes → do this”, so individual rules can be gentle and the pattern can be punished.
  • Punishments go through Moderation's engine, so they file cases, send that punishment's DM and climb its escalation ladder.

Word lists

A list is inert until a rule points at it. Make the list, write a rule, tick the list in that rule — and each list tells you which rules currently use it, or that none do.

  • Arclo ships seven built-in lists (slurs, scam domains and the like). They are editable per server as a difference: click a word to strike it out for you only, and add your own on top.
  • That way the shared list keeps updating itself — a scam domain added upstream still protects your server, around whatever you decided about the rest.
  • Lists can be sorted, downloaded, and replaced from a file (a JSON array, or newline- or comma-separated text).

Honeypots

A trap channel nobody should ever post in. Anything posted there is, by construction, a bot or somebody who does not read — no heuristic, no false positives, and the cheapest true signal in the whole system.

  • Arm existing channels, or let Arclo create one for you and arm it.
  • A designed pinned warning is the feature, not decoration: a trap whose channel does not explain itself catches your own curious members.
  • Each trap has its own punishments and its own exemptions — ignore bots (on by default), excluded roles and members, an arming grace period, and a maximum account age.
  • A thirty-day trigger history records who, what they posted, what ran, and the two numbers that settle whether it was a real person: account age and time in the server.

Slowmode manager

Slowmode that climbs when a channel gets busy and steps back down when it calms. Two modes, and they are different mechanisms:

ModeWho enforces itNotes
Per userDiscord — it is Slowmode in channel settingsNothing is ever deleted. Exemptions are Discord's own (Manage Messages / Manage Channels), so Arclo does not show exemption fields it could not honour.
Per channelArcloOne message every N seconds from anyone. Discord has no such setting, so Arclo enforces it by deleting what arrives early — which is why this mode is the one with exemption lists and a choice of enforcement.

It stands down rather than fighting

Five other things can move a channel's slowmode — the /slowmode command, a filter action, Security's flood response, an automation, or a human. If the value is not what Arclo last set, it assumes somebody else moved it and stops touching that channel for a while. A manager that re-asserts itself is experienced as “slowmode keeps resetting”.

The ladder climbs one rung at a time. Jumping straight to the rung matching the current rate would read its own suppression as more traffic and run to the ceiling.

Auto Purge

A standing instruction to keep a channel clean. One rule can cover many channels, because “clear these six spam channels every hour” is one decision.

ModeWhat it doesCap
IntervalClear the channel on a timer.Up to 7 days
AgeNothing in the channel outlives N. Checked four times per window, so overshoot stays small.Up to 13 days
  • Exempt roles server-wide, and per rule; a protected-channel list makes sure a rule can never reach somewhere it should not.
  • Never deleted, whatever the settings: Discord's own system messages, and the channel's sticky message.
  • New rules arrive switched off — the only create in the dashboard that does, because it would otherwise start deleting on the next sweep.

Why the caps are 7 and 13 days

Discord will not bulk-delete anything older than 14 days. Past those limits a message could never be both old enough to qualify and young enough to delete, so the rule would silently do nothing.

AI moderation

A classifier that scores a message across twelve categories when no cheaper filter has already handled it.

It runs locally, and it is deliberately timid

There is no external API, no key and no per-message cost. It is log-only by default, has a minimum message length, runs last, and an unattended automatic ban on a classifier's judgement is exactly what the default avoids. Turn actions on once you have watched its log for a while.

Discord's own AutoMod, and thread notices

  • Discord AutoMod rules stay in Server Settings — Arclo does not create or edit them, because two places to look when a message is blocked is worse than one. What Arclo adds is its own action vocabulary on top: when Discord blocks something, Arclo can warn, file a case, quarantine, or count it toward a repeat-offender threshold, per rule or as a default.
  • Thread notices sweeps Discord's “started a thread” system messages out of the parent channel, immediately or after a delay, with the usual channel and exemption lists.

Commands

  • /automod status
    Manage Server

    What Auto Moderation is doing right now — rules, hits today, AI moderation.

  • /automod rules [group]
    Manage Server

    Every rule, what it catches and what it does about it.

  • /automod toggle <rule> [state]
    Manage Server

    Switches one rule on or off without opening the dashboard.

  • /automod test <text> [as-member]
    Manage Server

    Runs a message through every rule and reports which would fire — without punishing anybody.

  • /automod scan [channel] [count]
    Manage Server

    Runs your rules over the recent messages in a channel and reports what they would have caught.

  • /automod violations view <member>
    Manage Server

    A member's recent Auto Moderation hits, and how close they are to a threshold.

  • /automod violations clear <member> [name]
    Manage ServerCannot be undone

    Wipes a member's violation counters, so they start from zero on the ladder.

  • /automod bypass add [role] [channel] [member]
    Manage Server

    Exempts a role, a channel or a member from every rule.

  • /automod bypass remove [role] [channel] [member]
    Manage Server

    Puts a role, channel or member back under the rules.

  • /automod bypass list
    Manage Server

    Everything and everybody Auto Moderation ignores.

  • /automod words add <list> <words>
    Manage Server

    Adds a word or phrase to one of your word lists, right now.

  • /automod words remove <list> <words>
    Manage Server

    Takes a word out of one of your word lists.

  • /automod words list [list]
    Manage Server

    Your word lists, or everything on one of them.

  • /automod words clear <list>
    Manage ServerCannot be undone

    Empties one of your word lists.

  • /automod honeypot add [channel]
    Manage Server

    Turns a channel into a trap: anyone who posts there is dealt with automatically.

  • /automod honeypot remove <channel>
    Manage Server

    Stops a channel being a trap. The channel itself stays.

  • /automod honeypot list
    Manage Server

    Your trap channels and how many accounts each has caught.

Still stuck? Ask in the support server — somebody there has almost certainly configured this before.