First-party features and command guards

First-party features are package infrastructure for this workspace. They are how @lupinum/board-history and @lupinum/board-connections attach state, events, and persistence to the core engine.

import { createBoardEngine } from '@lupinum/board-core'
import { connectionsPlugin } from '@lupinum/board-connections'
import { historyPlugin } from '@lupinum/board-history'

const engine = createBoardEngine({
  plugins: [historyPlugin(), connectionsPlugin({ routing: 'step' })],
})

This is not a third-party plugin surface. The supported consumer API is the package API exposed by each first-party package, such as engine.plugins.history and engine.plugins.connections.

Command guards

addCommandGuard registers a command guard. Use it when an app needs read-only mode, audit logging, or one concrete product policy.

engine.addCommandGuard(({ name }) =>
  name === 'deleteSelected' ? 'Deleting nodes is disabled.' : true,
)