LangChain: context engineering is the biggest agent challenge, Deep Agents has it built in

LangChain · x · 2026-09-16

LangChain argues the biggest challenge facing an agent harness is context engineering—what information an agent gets, and when. The longer the task, the harder it is to keep the context window from overloading. Its Deep Agents framework ships with context management built in: filesystems, subagents, and skills, already wired up.

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