Replay says its QA tool found more than 900 bugs in 40 promoted apps

CEO Brian Hackett says Replay QA found the bugs in apps promoted by app-building tools and traced them to root causes agents can act on.

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Primary source: Hacker News

Why it matters

AI builders can now generate web apps faster than teams can verify them. Replay's founder argument is that the bottleneck has moved from finding failures to explaining them well enough for a coding agent to fix them, which puts runtime recordings, not test scripts, at the center of QA.

A glowing cylindrical machine displays panels with red bug symbols beside stacks of cards bearing robot icons.

Brian Hackett is making a precise claim about why AI-built software ships broken: coding agents guess because they cannot see what an application actually did. In a November 3rd post, the Replay CEO and co-founder wrote that it is now possible to "reliably and automatically detect and fix every bug" users encounter on the web, while conceding that this has not happened yet and describing it as Replay's mission.…

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