Searchable audit history log of important moderator actions
The broadcaster should be able to see who made changes to their channel, even if they did not have their Twitch chat or mod view open when the action was taken.
These are moderator actions that should be auditable: such as turning on Slowmode or Subscribersonly, or Pausing a channel points redemption category, or Marking a redemption as Completed or Rejected.
Currently there seems no way to figure out for sure who was responsible for the change: if a moderator makes these changes when the streamer is offline and not connected to chat, Or if the information has scrolled off screen, And none of the channel's moderators will admit to making a change against the broadcaster's wishes (whether accidentally or intentionally).
I suggest at the very least the actions made by a moderator should appear in line with all their chat messages and be included with that user's Chat log history when you click the User and show that moderator's chat messages.
I propose the Dashboard should have an option for the Broadcaster and Channel Editors or a "Mod Supervisor" role to Search an audit history of recent moderator actions on a channel and Filter by Moderator or by Action such as /clear, settings changes /subscribersonly, /slowmode, /followers, /emoteonly, Autmod settings changes, Details of Created/Deleted Polls, Timeouts, Untimeouts, Actions on the Channel Points Queue, Pausing a redemption category, Individual message text deletion, etc.

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Sunowi commented
Audit logs for mod actions. WHY IS THIS NOT IMPLEMENTED ALREADY?
The issue is simple. If you have many mods and among these mods there are people who like to troll it should be a way to see what moderator has done what in your channel, so that you can take actions appropriately. It baffles me that this is still not implemented.
Currently mods can do many things like change title, complete predictions, change your tags, toggle slow mode, sub only chats, complete redeems, ban, mute, timeout and so on and you won't know what moderator did it because Twitch is still lacking audit logs. It is such a simple feature to add and it would help streamers out there choose good mods who won't abuse their powers.