Flue: Headless TypeScript Agent Framework with Markdown Skills

Announcement of a new framework with an agent harness: Flue

Conceptually, Flue is similar to Claude Code, but fully headless and programmable. There are no requirements for an operator, no terminal interface, and no graphical interface. Just TypeScript.

At the same time, it feels like working with Claude Code: agents perform tasks autonomously, with a minimal amount of code. The core logic is moved into Markdown skills, context, and AGENTS.md.

In terms of positioning, it’s closer to Astro or Next.js, but for agents. It isn’t tied to a specific runtime environment.

Deployment to different runtimes is supported: Node.js, Cloudflare, GitHub Actions, GitLab CI/CD.

Initially, Flue was used for internal workflows in the Astro repository. After experiments, it became clear that this layer of abstraction is needed not only for a single project.

The question being raised:

has the agent market matured to the stage of moving from libraries to full-fledged frameworks.