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+---
+summary: API for managing MUC hats
+---
+
+# Introduction
+
+This module provides an internal API (i.e. to other modules) to manage
+'hats' for users in MUC rooms.
+
+Hats (first defined in XEP-0317, currently deferred) are additional identifiers
+that can be attached to users in a group chat. For example in an educational
+context, you may have a 'Teacher' hat that allows students to identify their
+teachers.
+
+Hats consist of a machine-readable unique identifier (a URI), and optionally
+a human-readable label.
+
+This module provides ad-hoc commands for MUC service admins to add/remove hats
+to/from users in MUC rooms. It depends (automatically) on mod_muc_hats_api.
+
+## Configuration
+
+```
+Component "conference.example.com" "muc"
+  modules_enabled = { "muc_hats_adhoc" }
+```
+
+## Usage
+
+To successfully use the module you will need to use an XMPP client that is
+capable of sending commands to a specific host (e.g. via the service discovery
+browser in Gajim, Psi/Psi+ and other clients), and you'll find the commands
+on the MUC host.
+
+Also note that the display of hats in clients is currently non-existent, but
+will hopefully improve after XEP-0317 is resurrected or replaced.
+