Function isIdleNotification

src/utils/teammateMailbox.ts:435–447

(
  messageText: string,
)

 * Checks if a message text contains an idle notification
 */
export function isIdleNotification(
  messageText: string,
): IdleNotificationMessage | null {
  try {
    const parsed = jsonParse(messageText)
    if (parsed && parsed.type === 'idle_notification') {
      return parsed as IdleNotificationMessage
    }
  } catch {
    // Not JSON or not a valid idle notification
  }
  return null
}

/**
 * Permission request message sent from worker to leader via mailbox.