OpenAI Build Week scope
Arc was already in development before OpenAI Build Week as an early, functioning beta. During the July 13–21, 2026 submission period, I used GPT-5.6 and Codex to meaningfully extend the product.
The Build Week work included:
- Completing the Continuous Coach Presence capability so the same Coach identity and context carry across onboarding, Today, planning, reviews, and other product transitions
- Implementing and validating the first-visit journey through plan proposal, revision, explicit approval, and the canonical Basecamp handoff
- Building a safe fresh-user fixture and testing authenticated state isolation, return continuity, and mobile behavior
- Hardening hosted operations, identity handling, backups, rollback readiness, and judge-access testing
- Expanding automated validation around onboarding state, plan approval, current-user isolation, and Coach continuity
The underlying Arc application and portions of its planning, activity, onboarding, and observation foundations existed before Build Week. The repository’s dated commit history and Codex session records distinguish that earlier foundation from the work completed during the submission period.
More updates and hopefully app store publishing will be posted here as the project progresses!
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