Cortex is an AI agent orchestrator CLI that lets you design deterministic, multi-agent workflows using simple YAML files. Unlike chat-based tools, it supports true parallel execution, task dependencies, and output chaining between agents. Cortex introduces infrastructure-style configs (Cortexfile & MasterCortex) to orchestrate single or multi-project AI workflows with real-time streaming, session tracking, and reproducible runs—built for developers who want control, scalability, and automation.