Inside the AI Agent Stacks at SaaStr, Owner.com & Klaviyo — Three Markets, Same Playbook

SaaStr·medium signal

SaaStr published deep dives on the production agent stacks at three different companies — itself, restaurant-software firm Owner.com, and B2C CRM Klaviyo — showing convergence on the same architectural playbook across unrelated markets. Klaviyo's own stack centers on its K:AI Marketing Agent and Customer Agent (its AI-first B2C CRM push, now powering $63B+ in attributed revenue across 167,000 brands). The cross-company pattern matters more than any single stack: the same orchestration shape is emerging independently in events, vertical restaurant SaaS, and marketing automation.