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# Capability

> Feature capability string that controls what actions a participant can perform.

```ts
type Capability = "self" | "self.mute" | "self.mute.audio" | "self.mute.audio.on" | "self.mute.audio.off" | "self.mute.video" | "self.mute.video.on" | "self.mute.video.off" | "self.deaf" | "self.deaf.on" | "self.deaf.off" | "self.microphone" | "self.microphone.volume.set" | "self.microphone.sensitivity.set" | "self.speaker" | "self.speaker.volume.set" | "self.position.set" | "self.meta" | "self.audioflags.set" | "member" | "member.mute" | "member.mute.audio" | "member.mute.audio.on" | "member.mute.audio.off" | "member.mute.video" | "member.mute.video.on" | "member.mute.video.off" | "member.deaf" | "member.deaf.on" | "member.deaf.off" | "member.microphone" | "member.microphone.volume.set" | "member.microphone.sensitivity.set" | "member.speaker" | "member.speaker.volume.set" | "member.position.set" | "member.meta" | "member.audioflags.set" | "layout" | "layout.set" | "digit" | "digit.send" | "vmuted" | "vmuted.hide" | "vmuted.hide.on" | "vmuted.hide.off" | "lock" | "lock.on" | "lock.off" | "device" | "screenshare" | "end"
```

Feature capability string that controls what actions a participant can perform.

Capabilities are organized into categories:

* **self.\*** — Actions the local participant can perform on themselves (mute, deaf, volume, position, meta).
* **member.\*** — Actions that can be performed on other participants.
* **layout.\*** — Layout management for the video canvas.
* **digit.\*** — DTMF digit sending.
* **vmuted.\*** — Visibility control for muted video participants.
* **lock.\*** — Room lock/unlock control.
* **device** / **screenshare** — Device and screen share capabilities.
* **end** — Permission to end the call or room.

> Feature capability string that controls what actions a participant can perform.