Zephyr Manus
A general-purpose agent runtime with a Docker-isolated tool sandbox
FastAPI Redis Streams PostgreSQL Docker Next.js MCP/A2A · Mar.–May 2026
A Planner–ReAct agent runtime supporting task decomposition, external-tool execution, persistent state, and human-in-the-loop wait/resume workflows.
Tools — Browser, Shell, File — run inside a Docker-isolated sandbox, so an agent can execute code, browse, and manipulate files in a controlled environment. The backend is event-driven: FastAPI with Redis Streams for task execution and state transitions, PostgreSQL for persistence, SSE for live status, and MCP/A2A for external tool integration and agent-to-agent collaboration.