Analysis
A small Meta team built Forum, a standalone Groups app, using agents to plan, implement, build, test and revise code. The company’s October 15 engineering account describes a workflow in which people retain responsibility for quality goals and final signoff.
Agents receive a live view hierarchy to navigate interfaces. Changes come with automated tests and visual checks, while a separate build flavor keeps prototype code apart from production. These details place the account’s emphasis on the path from a proposed change to something ready for review.
Rish Tandon is one of nine co-authors describing Meta’s experience. The company presents verified, production-ready changes as the intended output, but human-on-the-loop operation remains a developing target. Some engineers still take part in the inner rounds of iteration.
That remaining involvement matters to the productivity question. Faster code generation can leave substantial work in correction and review. Tests and visual evidence may help reviewers reach a decision, but their presence alone does not reveal how much human effort a change consumed.
Forum provides a concrete account of how one team organized that work. It does not establish an independent causal measure of productivity gains. The revealing unit is the change that reaches signoff, including the effort required to get it there.
Source: How Meta Built Forum With AI-Native Engineering · 2026-10-15 · Primary source context · attributed account