Skip to main content

@repo/core Package

@repo/core provides the domain layer for the extension — runtime messaging, storage, billing types, and Chrome helpers.

Key Exports​

Runtime messaging​

  • sendRuntimeMessage — send a typed message to the background (returns a promise with the typed response)
  • addRuntimeMessageListener — register a handler in the background for a message type
  • RuntimeMessageMap — type definition for all message types

Storage​

  • Storage migration helpers via runStorageMigrations in @repo/browser-utils (used by core)

Billing​

  • Billing-related types and helpers

Other​

  • auth, chrome, data, email, ai — domain helpers

Framework Agnostic​

@repo/core has no React dependency. You can use it from Vue, Svelte, Angular, or vanilla JavaScript. Only @repo/auth and @repo/ui are React-specific.