Manifest Reference

manifest.json describes how Vifu should load a browser game and which runtime capabilities it can use.

Minimal manifest

{
  "name": "water-quest",
  "title": "Water Quest",
  "entry": "index.html"
}

Companion-enabled manifest

{
  "name": "water-quest",
  "title": "Water Quest",
  "entry": "index.html",
  "capabilities": ["companion.plugin.v1"]
}

Fields

Field	Required	Description
name	Yes	Stable package identifier. Use lowercase words and hyphens.
title	Yes	Human-readable game title.
entry	Yes	HTML entry file.
capabilities	No	Runtime features required by the game.

Capability values

Capability	Description
companion.plugin.v1	Enables Companion SDK context, command, observation, and signal bridge.