That's really cool. We're on a similar path with https://api-fiddle.com
We're trying to build the best tool out there for team that want to build api-first and speed up development and code generation this way.
I'm happy you wrote this article!
Here are a few questions for you: - Do you think the mock API is the best way to get Feedback from stakeholders? - How do you merge your changed OpenAPI document into your master documentation when it's time for prod? - How do you share your draft contract with e.g. a frontend engineer so they can get started building the UI?