--- title: Pushing LangSmith to new limits with Replit Agent's... description: Replit built their AI coding agent on LangGraph and integrated LangSmith for observability, pushing the platform to new limits. The collaboration between... canonical: https://daily.dev/posts/pushing-langsmith-to-new-limits-with-replit-agent-s-complex-workflows-wzdtzigsh twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Pushing LangSmith to new limits with Replit Agent's complex workflows | daily.dev og:description: Replit built their AI coding agent on LangGraph and integrated LangSmith for observability, pushing the platform to new limits. The collaboration between... og:url: https://daily.dev/posts/pushing-langsmith-to-new-limits-with-replit-agent-s-complex-workflows-wzdtzigsh og:image: https://api.daily.dev/og/posts/WZDTZigSH.png og:image:alt: Pushing LangSmith to new limits with Replit Agent's complex workflows 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. # Pushing LangSmith to new limits with Replit Agent's complex workflows **[LangChain](https://daily.dev/sources/langchain)** · 4 min read · 0 upvotes · 0 comments ## Summary Replit built their AI coding agent on LangGraph and integrated LangSmith for observability, pushing the platform to new limits. The collaboration between LangChain and Replit teams led to three key improvements: better performance and scalability for large traces with hundreds of steps, new within-trace search and filtering to speed up debugging, and a thread view that collates multi-turn conversation traces to support human-in-the-loop workflows. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Debugging Deep Agents with LangSmith](https://daily.dev/posts/debugging-deep-agents-with-langsmith-v1oyf16pl) · LangChain · 1 upvotes · 0 comments - [How to Trace and Monitor AI Agents with LangSmith](https://daily.dev/posts/how-to-trace-and-monitor-ai-agents-with-langsmith-07a1jtpdf) · freeCodeCamp · 2 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#langgraph](https://daily.dev/tags/langgraph), [#langsmith](https://daily.dev/tags/langsmith), [#llm-observability](https://daily.dev/tags/llm-observability) [View this post on daily.dev](https://daily.dev/posts/pushing-langsmith-to-new-limits-with-replit-agent-s-complex-workflows-wzdtzigsh) ```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":"Pushing LangSmith to new limits with Replit Agent's complex workflows","url":"https://daily.dev/posts/pushing-langsmith-to-new-limits-with-replit-agent-s-complex-workflows-wzdtzigsh","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/pushing-langsmith-to-new-limits-with-replit-agent-s-complex-workflows-wzdtzigsh"},"datePublished":"2026-07-08T19:23:00.961Z","dateModified":"2026-08-24T06:55:28.049Z","description":"Replit built their AI coding agent on LangGraph and integrated LangSmith for observability, pushing the platform to new limits. 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