"Every stage ends at a gate: something you can open, and a decision that is yours."
The Foundry is where a real build starts. You describe the idea; it runs the six stages and stops at every gate for you.
Your build moves through Validate, Blueprint, Brand, Build, Launch and Run. It stops at the end of each one until you approve it.
Each build gets its own workspace at an unguessable link. Only people you give the link to can open it.
What the build is costing is shown in your workspace as it runs, not saved up for the end.
The Foundry works on one build at a time, so yours is never queued behind someone else's half-finished stage.
Bring the idea. The Foundry gives it a private workspace and takes it through six gates you approve.