ChannelPlugin

ChannelPlugin = object

Defined in: types/channel-types/index.ts:468

A channel plugin: the value the core’s channel loader consumes, mirroring @mercury-fw/plugin-types’ Plugin. A channel package exports one and does not import the app.

apiVersion: contract version (see CHANNEL_API_VERSION); the loader refuses a mismatch.
name: the channel’s id, and the key the loader registers the provider under (the cron layer looks up "google-chat" for its Notifier).
build: builds the Provider from the context, or undefined when the instance isn’t configured for this channel (e.g. no GOOGLE_CHAT_PUBSUB_SUBSCRIPTION) → the loader treats it as “present but inert” and never starts it.
messages: the channel’s texts a person sees, in English, every key under <name>.; the loader refuses a channel with a key outside it (and one named core or app). The instance’s language files translate them, and the channel gets them through ctx.i18n.