Build.inc has developed a complex multi-agent workflow using LangGraph, which automates manual and labor-intensive workflows in the built world. The system is composed of specialized agents performing specific tasks, orchestrated by a network of workers that accomplish tasks in record time and with depth that human consultants cannot achieve. By taking an agent-first approach to solving problems, Build.inc pushes the boundaries of agentic systems to automate complex workflows. The company's first worker, Dougie, has been successfully deployed for real estate development, particularly in land diligence for energy-intensive industries, accelerating projects by 75 minutes compared to manual processes. Build.inc's experience and practical learnings from building agents highlight the importance of choosing open-ended tasks, tailoring agents to specific tasks, keeping tasks simple and small, designing modules by default, and envisioning a future where complex workflows are seamlessly automated through sophisticated orchestration.