Ask HN: When is too early to launch?

Im building an imessaging assistant, and contextually, I have no shame. I would 100 percent send this half broken, maybe works a little messaging assistant to anyone, just to get the word out there and start building relationships. But im constantly thinking, no this is too early, the app has to at the very least work and interact with users. So I come to hacker news to ask the question, how early is too early to launch?