How Harmonic Rebuilt Scout on Deep Agents and 4x'd Retention with LangSmith

Harmonic rebuilt their AI research platform Scout using Deep Agents and LangSmith, moving from a rigid multi-graph architecture to a simpler, more flexible system. The new version transformed Scout from a search tool into an intelligent advisor capable of handling complex, open-ended tasks across their dataset of 40 million companies and 200 million people. This architectural shift resulted in a fourfold increase in user retention and tenfold growth in average session duration.