The agent harness framework from the maker of Astro. Every Flue agent gets its own Linux VM through the boxd connector.
Flue is the agent harness framework from Fred K. Schott, known from Astro. It feels like Claude Code, but fully headless and programmable in TypeScript. Flue agents can opt into a full sandbox, and the boxd connector gives each agent its own Linux VM:
import { Compute } from '@boxd-sh/sdk';import { boxd } from './connectors/boxd';const c = new Compute({ apiKey: process.env.BOXD_API_KEY });const box = await c.box.create({ name: 'my-agent' });const agent = await init({ sandbox: boxd(box), model: 'anthropic/claude-sonnet-4-6' });const session = await agent.session();
You own the machine’s lifecycle through the TypeScript SDK, and the connector adapts it to Flue’s sandbox interface. The connector is written so a coding agent can install it into your Flue project, and Flue’s own docs cover it under sandboxes.