How Meta Built Forum With AI-Native Engineering
Meta built Forum app using AI agents as full engineering participants, not just coding assistants.
“treating an AI agent as a participant in the engineering process rather than a faster way to type”
Meta's Forum app was built by a small team that embedded AI agents across the full development cycle — planning, implementation, testing, and verification — shifting engineers from executing steps to owning outcomes. The key framework distinction is 'human-on-the-loop' vs 'human-in-the-loop', where agents run full iterations autonomously and engineers supervise and approve. Meta set their success bar at verified, production-ready outcomes rather than code volume, requiring agents to self-check via automated tests before any human review.