Since May 2026, 3,000+ Stripes have created 12,000 prototypes, and 25% of Stripes have created at least one prototype in Harbor.
Cristian RiveraStaff engineer, Web Presence and Platform team · Practitioner, 
Stripe
Post: Stripe developer blog, Stripe developer blog, September 14, 2026.
Cristian Rivera, Staff engineer, Web Presence and Platform team. Built the tool Rivera reports usage of; an employee describing Rivera's own work.
Checked against the source by a first reader, then confirmed independently by a second reader who fetched the source without seeing the first reader's notes (Independent review agent (Claude Sonnet), blind second pass from passage text and citation only, no repository access, 2026-10-31).
Found verbatim in the post body. The post's authors are Cristian Rivera and Sai Samant. It is a Stripe-authored post, and Cristian Rivera is a listed author, so I accepted the attribution to him.
Cristian Rivera (Stripe), “Stripe developer blog”, Stripe developer blog, 2026-09-14. https://stripe.dev/blog/harbor-stripes-ai-assisted-prototyping-tool Archived at https://the-ai-record.com/passages/stripe-since-may-2026-3-000-stripes-created-2026
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