What software capability has your team learned the hard way?

AI can implement a surprising amount of software. But when the input is a thin prompt, it still has to invent the product decisions: who can do what, how failures are handled, which recovery paths exist, where the security boundaries sit, what gets measured, and how the capability is rolled out.

That’s the problem behind ProductAtlas.

Teams that have already built a capability can capture the thinking behind it in a versioned Blueprint. Other builders can inspect and adapt that knowledge, while coding agents can work from the same context during implementation.

Ahead of our August 17 launch, I’d love to learn:

• Which capability did your team initially underestimate?

• What important decisions were missing from the first requirements?

• What should another builder—or their coding agent—know before attempting it?

Authentication and account recovery? Billing? Permissions? Search? Notifications? Feature flags? Something else?

I’ll use the responses to decide which Blueprint examples and teardowns we should publish first. Specific lessons are more useful than polished success stories.