Beyond Prototypes: Enterprise-Grade AI Agent Runtimes in 2026

As AI agents scale from proof-of-concept to production, the architectural limitations of prototype-first platforms become apparent—particularly in multi-user authorization, security governance, and observability. This guide compares production-ready alternatives that prioritize delegated authorization, centralized governance, and auditability, showing why teams migrating to enterprise environments need fundamentally different runtime architectures than Composio's broad-integration model.