{"slug": "replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps", "title": "Replay says its QA tool found more than 900 bugs in 40 promoted apps", "summary": "Replay CEO and co-founder Brian Hackett said in a November 3 blog post that Replay's QA tool found more than 900 bugs across 40 apps promoted by app-building tools and traced them to root causes coding agents can act on. Hackett argued the bottleneck for AI-built web apps has shifted from finding failures to explaining them well enough for an agent to fix, positioning runtime recordings rather than test scripts at the center of QA, and said it is now possible to \"reliably and automatically detect and fix every bug\" users encounter on the web, though he conceded that has not happened yet.", "body_md": "# Replay says its QA tool found more than 900 bugs in 40 promoted apps\n\n**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.**\n\n        By [RuntimeWire Staff](https://runtimewire.com/author/runtimewire-staff)\n        · Published \n\nPrimary source: [Hacker News](https://replay.io/blog/an-end-to-buggy-web-apps)\n\n## Why it matters\n\nAI 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.\n\nBrian 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](https://replay.io/blog/an-end-to-buggy-web-apps?ref=runtimewire), 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.…\n\nWhen you purchase through links in our articles, [we may earn a small commission](https://runtimewire.com/affiliate-monetization-standards). This doesn’t affect our editorial independence.", "url": "https://wpnews.pro/news/replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps", "canonical_source": "https://runtimewire.com/article/replay-time-travel-debugger-900-bugs-ai-built-apps", "published_at": "2026-11-04 17:32:19+00:00", "updated_at": "2026-11-04 20:49:22.113203+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "ai-products", "developer-tools"], "entities": ["Replay", "Brian Hackett", "Hacker News"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps", "markdown": "https://wpnews.pro/news/replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps.md", "text": "https://wpnews.pro/news/replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps.txt", "jsonld": "https://wpnews.pro/news/replay-says-its-qa-tool-found-more-than-900-bugs-in-40-promoted-apps.jsonld"}}