---

summary: Ad-hoc commands 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.