SimSpace provides a realistic cyber range and AI proving ground for validating, operationalizing, and building AI agents alongside human operators inside a digital replica of a production environment. Security teams can continuously stress-test agentic and human defenses against realistic user behavior, attack emulation, and LLM-driven threats before they reach production. It reproduces actual infrastructure, tools, data schemas, workflows, and playbooks so organizations can evaluate how agents behave under real operating conditions rather than relying on representative test environments. SimSpace assesses not only outcomes but also the complete trajectory of an agent’s behavior, including tool calls, escalation gates, and error recovery, helping identify agents that reach the right result for the wrong reasons. Validation can run continuously through headless, API-driven workflows designed for CI/CD environments as models and playbooks evolve.