Product OwnerNames the pain and the public bet.
Chooses workflow friction worth turning into a small product surface, writes the acceptance bar, and cuts anything that does not strengthen the proof chain.
- Pain is repeated
- Artifact can be inspected
- Private context stays out
BuilderShips the smallest useful artifact.
Turns the bet into a route, repo, demo, write-up, or scoring harness that survives outside a chat transcript and can be revisited later.
- Working surface
- Source or route link
- Verification command
Reviewer / user-side investorDecides whether the loop earns more trust.
Reviews the artifact from the user side: did it reduce review burden, create a reusable check, and deserve more time, tokens, or permission next time?
- Evidence over vibes
- Review cost visible
- Next investment explicit