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It handles planning, context management, and multi-agent orchestration for complex work like research and coding.\n\nIn this talk, Sydney and Jake break down the core components of the Deep Agent \"harness\"\u2014including planning tools, sub-agent delegation, file system integration, and secure execution environments (sandboxes). They also discuss the very real challenges of deploying these agents to production, managing context windows, and keeping track of long-running traces using LangSmith.\n\nDeep Agents: Building for Complex, Long-Running Tasks with LangChain\n00:00 Introductions\n01:32 What are Deep Agents?\n02:43 Common Use Cases for Deep Agents\n03:56 Core Components of a Deep Agent\n05:53 How File Systems Work in Deep Agents\n11:58 Agent Skills and Skill Sharing\n14:15 Sandboxes and Execution Environments\n17:21 Challenges in Deploying Agents to Production\n19:18 Observability, Tracing, and LangSmith\n21:01 Quick Tips for Getting Started\n25:05 Q&A: How to Write a Good Prompt\n26:23 Q&A: Multi-Agent Architectures and Sub-agents\n28:13 Q&A: Sandboxing, Isolation, and Cost Efficiency\n29:43 Q&A: Will Deep Agents Replace Deterministic Workflows?\n30:52 Q&A: Supporting Multiple Providers and Multi-modal Blocks\n\nExtra resources\n- Build with LangChain: https:\/\/www.langchain.com\/\n- Get started with Deep Agents: https:\/\/www.langchain.com\/deep-agents\n- Trace and Evaluate with LangSmith: https:\/\/smith.langchain.com\/","thumbnailUrl":["https:\/\/i.ytimg.com\/vi\/GbzEDgcuGJU\/default.jpg","https:\/\/i.ytimg.com\/vi\/GbzEDgcuGJU\/mqdefault.jpg","https:\/\/i.ytimg.com\/vi\/GbzEDgcuGJU\/hqdefault.jpg","https:\/\/i.ytimg.com\/vi\/GbzEDgcuGJU\/sddefault.jpg","https:\/\/i.ytimg.com\/vi\/GbzEDgcuGJU\/maxresdefault.jpg"],"uploadDate":"2026-07-17T17:43:50+00:00","duration":"PT42M59S","embedUrl":"https:\/\/www.youtube.com\/embed\/GbzEDgcuGJU","publisher":{"@type":"Organization","@id":"https:\/\/www.youtube.com\/channel\/UCC-lyoTfSrcJzA1ab3APAgw#Organization","url":"https:\/\/www.youtube.com\/channel\/UCC-lyoTfSrcJzA1ab3APAgw","name":"LangChain","description":"Learn more about how to build agents with LangChain products.","logo":{"url":"https:\/\/yt3.ggpht.com\/a37xtLmxeZMFCB5Zj4isLgU9hKznc5qceLU4DOfdCdgiZJi0pORPqlc145VTJU6Sne1Ti6RJ=s800-c-k-c0x00ffffff-no-rj","width":800,"height":800,"@type":"ImageObject","@id":"https:\/\/www.youtube.com\/watch?v=GbzEDgcuGJU#VideoObject_publisher_logo_ImageObject"}},"potentialAction":{"@type":"SeekToAction","@id":"https:\/\/www.youtube.com\/watch?v=GbzEDgcuGJU#VideoObject_potentialAction","target":"https:\/\/www.youtube.com\/watch?v=GbzEDgcuGJU&t={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"},"interactionStatistic":[[{"@type":"InteractionCounter","@id":"https:\/\/www.youtube.com\/watch?v=GbzEDgcuGJU#VideoObject_interactionStatistic_WatchAction","interactionType":{"@type":"WatchAction"},"userInteractionCount":5578}],{"@type":"InteractionCounter","@id":"https:\/\/www.youtube.com\/watch?v=GbzEDgcuGJU#VideoObject_interactionStatistic_LikeAction","interactionType":{"@type":"LikeAction"},"userInteractionCount":191}]},"about":["Insights","\u300eEnglish\u300f"],"wordCount":1356},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Insights","item":"https:\/\/blog.terabox.com\/insights\/#breadcrumbitem"},{"@type":"ListItem","position":2,"name":"Deep Agents: Building Complex and Long-Running AI Agents","item":"https:\/\/blog.terabox.com\/insights\/building-complex-ai-agents-deep-agents#breadcrumbitem"}]}]