Topic
Deep Agents
6 episodes
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Interpreters in Deep Agents: Code Between Tool Calls and Sandboxes
Justy and Cody dig into the argument for adding interpreters inside agent loops: a middle layer between serial tool calls and full sandboxes that lets models compose tools, keep live state, and ship less context around. They talk through why that’s practically useful, where the early token savings matter, and where the claim gets fuzzy if you assume an interpreter can replace real environments.
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LangSmith Sandboxes are Generally Available
Cody leads a skeptical read of LangSmith Sandboxes going GA — questioning whether microVM isolation is genuinely new or just well-packaged infrastructure. Justy pushes back on who actually needs this and why it matters for teams shipping real agent workflows. They land somewhere honest: the security argument holds, but the moat question is real.
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New in Deep Agents v0
Justy and Cody chat in their kitchen about Deep Agents v0.6, highlighting open‑weight cost cuts, Delta channels, new streaming, and the handy code interpreter. They riff on how to jump‑start a weekend project and point to the Context Hub integration for learning agents.
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Tuning Deep Agents to Work Well with Different Models
Justy and Cody dig into LangChain’s new Deep Agents model-specific harness profiles. Cody is skeptical that prompt-and-tool tuning is a durable win, while Justy sees a practical adoption path for builders who keep hitting model-specific quirks. They land on a cautious take: useful, real, and probably underappreciated, but not magic.
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How to Use Memory in Agent Builder
LangChain's Agent Builder uses filesystem-based memory to get smarter over time, storing both short-term task context and long-term instructions as Markdown files. The system includes specialized 'skills' that load contextually and supports direct memory editing for fine-tuned control.
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Deep Agents overview Docs by LangChain
Explore the capabilities of Deep Agents in LangChain, a powerful tool for building specialized agents capable of handling complex tasks with planning and context management.