How Curative is building a national provider network with agents on Claude

Curative built a hierarchy of agents on Claude, led by a provider-contracts agent named Gwen, to sign provider contracts roughly 50 times faster than its team did in 2025, reaching 2,000 to 2,400 new contracts a week versus 2,100 in all of 2025. Gwen handles one provider per run on Claude Opus, with a Sonnet rate reviewer, a Haiku judge that checks every outbound message, and escalation to humans for non-standard pricing. The company's contracting team grew from 45 to about 55 people, each about 2.5 times as productive, and its agents run on bespoke claims, prior authorization and finance systems that 13 engineers rebuilt with Claude Code.