Building LangChain's Paid Media Agent with Human-in-the-Loop
September 14, 2026
LangChain developed a paid media agent using a sandbox environment and business context to move from analysis to action. The architecture utilizes LLMs for judgment and code for consistency, requiring human approval for campaign changes.
HOW THIS AFFECTS YOU
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builderYou can implement a hybrid model using LLMs for reasoning and code for reliable execution.