# interface/

```
Type: knowledge
```
The laws and contracts for how the player perceives and acts: continuous
witness, presence, representation, and the terminal's first-class status,
followed by frontend work orders. The
[action vocabulary](action-vocabulary.md) is the canonical survey of every
supported world action, direct machine control, interface command, alias, and
retired verb. The [Bevy frontend](bevy.md)
(graphical, at key-for-key parity with the terminal), and agent-play
(the line-protocol drive for programs/agents operating the terminal
frontend directly). [narration.md](narration.md) is the continuous-
witness contract — the thirty-second bar, story spine, causal sentences,
and world-gossip discoverability that keep the player from needing the
wiki mid-run. [site.md](site.md) extends the visual law to the public
website (splash and rendered wiki). Implementation notes live in
`../engineering/`.