Function isModeSetRequest

src/utils/teammateMailbox.ts:1048–1062

(
  messageText: string,
)

 * Checks if a message text contains a mode set request
 */
export function isModeSetRequest(
  messageText: string,
): ModeSetRequestMessage | null {
  try {
    const parsed = ModeSetRequestMessageSchema().safeParse(
      jsonParse(messageText),
    )
    if (parsed.success) {
      return parsed.data
    }
  } catch {
    // Not JSON or not a valid mode set request
  }
  return null
}

/**
 * Checks if a message text is a structured protocol message that should be