--- title: Cursor shows AI agents capable of shoddy code at scale description: Cursor's AI agents built a 3-million-line browser engine in a week, but the project revealed significant limitations. The browser partially works but has an... canonical: https://daily.dev/posts/cursor-shows-ai-agents-capable-of-shoddy-code-at-scale-fvojau4fe twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Cursor shows AI agents capable of shoddy code at scale | daily.dev og:description: Cursor's AI agents built a 3-million-line browser engine in a week, but the project revealed significant limitations. The browser partially works but has an... og:url: https://daily.dev/posts/cursor-shows-ai-agents-capable-of-shoddy-code-at-scale-fvojau4fe og:image: https://api.daily.dev/og/posts/fVOjAu4fE.png og:image:alt: Cursor shows AI agents capable of shoddy code at scale og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Cursor shows AI agents capable of shoddy code at scale **[The Register](https://daily.dev/sources/theregister)** · 7 min read · 0 upvotes · 0 comments ## Summary Cursor's AI agents built a 3-million-line browser engine in a week, but the project revealed significant limitations. The browser partially works but has an 88% CI job failure rate and is bloated compared to established engines like Ladybird and Servo. Industry experts argue this demonstrates AI can produce large codebases at scale, but with poor quality and reliability. Critics point to lack of evidence that AI coding tools improve actual software delivery outcomes, noting that productivity gains are often misperceived and that fundamental development practices remain unchanged. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Cursor is better at marketing than coding](https://daily.dev/posts/cursor-is-better-at-marketing-than-coding-dovpzupop) · The Register · 43 upvotes · 4 comments --- Tags: [#ai](https://daily.dev/tags/ai), [#rust](https://daily.dev/tags/rust) [View this post on daily.dev](https://daily.dev/posts/cursor-shows-ai-agents-capable-of-shoddy-code-at-scale-fvojau4fe) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Cursor shows AI agents capable of shoddy code at scale","url":"https://daily.dev/posts/cursor-shows-ai-agents-capable-of-shoddy-code-at-scale-fvojau4fe","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/cursor-shows-ai-agents-capable-of-shoddy-code-at-scale-fvojau4fe"},"datePublished":"2026-01-22T16:25:39.804Z","dateModified":"2026-02-27T20:38:11.557Z","description":"Cursor's AI agents built a 3-million-line browser engine in a week, but the project revealed significant limitations. 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