--- title: Worth the Squeeze | daily.dev description: A Gusto engineer shares how agentic AI workflows made a large-scale Ruby codebase refactor feasible by replacing OpenStruct with faster alternatives. The key... canonical: https://daily.dev/posts/worth-the-squeeze-rbj2l7p7o twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Worth the Squeeze | daily.dev og:description: A Gusto engineer shares how agentic AI workflows made a large-scale Ruby codebase refactor feasible by replacing OpenStruct with faster alternatives. The key... og:url: https://daily.dev/posts/worth-the-squeeze-rbj2l7p7o og:image: https://api.daily.dev/og/posts/rBJ2l7p7O.png og:image:alt: Worth the Squeeze 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. # Worth the Squeeze **[Gusto Engineering](https://daily.dev/sources/gustoeng)** · 9 min read · 0 upvotes · 0 comments ## Summary A Gusto engineer shares how agentic AI workflows made a large-scale Ruby codebase refactor feasible by replacing OpenStruct with faster alternatives. The key insight wasn't AI's code generation speed but the ability to cheaply iterate on the decomposition strategy itself. Initial attempts using one PR per module caused reviewer fatigue; grouping PRs by team ownership solved the bottleneck. Claude Code was used to build a reusable skill that scans for deprecated patterns, groups changes by team, generates replacements, and measures performance. A two-agent setup ran refactoring and performance benchmarking in parallel using git worktrees, producing concrete metrics (25–39x faster instantiation, 90%+ memory reduction) that justified the work. A GitHub issue served as a living dashboard and shared memory between sessions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [When Code Becomes Cheap, What’s Left?](https://daily.dev/posts/when-code-becomes-cheap-what-s-left--jbyzzm8t6) · Atomic Spin · 2 upvotes · 0 comments - [How to effectively utilise AI to enhance large-scale refactoring](https://daily.dev/posts/how-to-effectively-utilise-ai-to-enhance-large-scale-refactoring-rxrhhvtn8) · Atlassian · 0 upvotes · 0 comments - [When code is abundant](https://daily.dev/posts/when-code-is-abundant-gezbqtizx) · GitLab · 0 upvotes · 0 comments - [Medium](https://daily.dev/posts/medium-bk5chjwcp) · Medium · 1 upvotes · 0 comments --- Tags: [#ruby](https://daily.dev/tags/ruby), [#claude-code](https://daily.dev/tags/claude-code) [View this post on daily.dev](https://daily.dev/posts/worth-the-squeeze-rbj2l7p7o) ```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":"Worth the Squeeze","url":"https://daily.dev/posts/worth-the-squeeze-rbj2l7p7o","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/worth-the-squeeze-rbj2l7p7o"},"datePublished":"2026-03-27T00:27:38.060Z","dateModified":"2026-03-27T00:28:06.907Z","description":"A Gusto engineer shares how agentic AI workflows made a large-scale Ruby codebase refactor feasible by replacing OpenStruct with faster alternatives. 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