Open-source TypeScript agent harness framework for building autonomous agents and workflow agents with built-in virtual sandboxes, optional container sandboxes, skills, sessions, CLI commands, and HTTP/webhook deployment.
Recent stories
Flue previewed a command that points at docs or SDK URLs and has the agent write a sandbox connector directly into your codebase without extra packages. Follow-on tweaks, a Python port, and Unkey deploy support show the harness is becoming a testbed for self-authored integrations.
Flue launched as a runtime-agnostic TypeScript framework for headless agents, with Claude Code-like harness behavior but no built-in GUI and most logic living in Markdown skills and AGENTS.md. Early demos show a 43-line starter that can expose an agent service, highlighting a push to separate harness logic from chat interfaces.