The most dangerous bugs live between teams: build a shared language, involve engineers early, and listen when they raise a flag.
Use it now · Plan
Roadmap "so that" test
Finish "We're building this so that…" for every item and see which are polished brass.
Use it now · Pantry
PRD template
A product requirements doc that starts from the problem and the outcome, not the feature list.
That's the lesson. Next up: The Glasses That Launched Too Loudly.
