Vercel Builds an Inbound Sales Agent Run by 14 Rules

Vercel's COO Jeanne DeWitt Grosser described how the company built an AI agent that runs the top of its sales funnel, starting from a roughly 125-line prompt written by its best SDR. The team moved the agent from supervised drafting to autonomous operation by August, then split the prompt into 14 deterministic rules and a model-handled judgment layer.

Grosser said the system runs inbound for about $1,000 per year in inference and infrastructure.