Nitro integration for Workflow SDK. The workflow/nitro entry point's default export is a Nitro module — it has no callable API. You enable it by adding it to the modules array of your Nitro config and configure it via the workflow key.

import { defineConfig } from "nitro";

export default defineConfig({
  serverDir: "./server",
  modules: ["workflow/nitro"], 
});

When enabled, the module:

• Transforms "use workflow" and "use step" directives during bundling.
• Builds the workflow, step, and webhook bundles, and rebuilds them on file changes in development.
• Registers the workflow runtime routes under /.well-known/workflow/v1/.
• Serves a redirect to the local observability dashboard at /_workflow in development.
• Configures Vercel function rules (queue triggers and maxDuration) for the workflow routes when deploying to Vercel.

Options are read from the workflow key of your Nitro config. The option type is exported as ModuleOptions:

import { defineConfig } from "nitro";
import type { ModuleOptions } from "workflow/nitro"; 

const workflow: ModuleOptions = {
  runtime: "nodejs22.x",
};

export default defineConfig({
  modules: ["workflow/nitro"],
  workflow, 
});

If you use Nitro through its Vite plugin (nitro/vite) instead of a standalone nitro.config.ts, use the workflow/vite entry point, which wraps this module as a Vite plugin and accepts the same ModuleOptions.