#543: Deep Agents: LangChain's SDK for Agents That Plan and Delegate
From Talk Python To Me by Michael Kennedy
April 1, 2026 · 1h 4m · Episode 543
About this episode
Sydney Runkle discusses LangChain's new open source library, Deep Agents, which enables the creation of advanced AI agents.
When you type a question into ChatGPT, the model only has what you typed to work with. But tools like Claude Code can plan, iterate, test, and recover from mistakes. They work more like we do. The difference is the agent harness: Planning tools, file system access, sub-agents, and carefully crafted system prompts that turn a raw LLM into something genuinely capable. Sydney Runkle is back on Talk Python representing LangChain and their new open source library, Deep Agents: A framework for building your own deep agents with plain Python functions, middleware hooks, and MCP support. This is how the magic works under the hood.
People in this episode
Host: Michael Kennedy
Guest: Sydney Runkle
Topics covered
- LangChain
- Deep Agents
- AI agents
- planning tools
- open source
- Python
Keywords
- LangChain
- Deep Agents
- AI
- Python
- Claude Code
- ChatGPT
- agents
Mentioned in this episode
Organizations: LangChain
Products: Deep Agents, Claude Code
Books & works: ChatGPT
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