Why Knock Moves Agency Margin From Build Hours to Workflow Retainers

Knock collapses the engineering cost of multi-channel lifecycle messaging into a prompt: an agency operator describes the journey to Claude, ChatGPT, Cursor, or Grok and Knock assembles triggers, delays, branches, and agent steps without code. That shifts the billable unit from integration hours to a recurring workflow retainer, and the $250/month Starter tier (50K messages, 2.5K guide active users, 2,000 AI agent credits) is cheap enough to sit under a $3,500 launch engagement and still leave margin. The strategic risk is the opposite: agencies that keep hand-building orchestration watch the same client work get priced against a platform fee they cannot match.