ModelContextProtocol

@everyone Windmill is the fastest workflow engine but many times the comparison with other workflow engines was stuck on low-code vs full code flows. I'm proud to release the ALPHA of:

Workflow-as-Code v2 — Write workflows as plain code

We completely rebuilt Workflow-as-Code from the ground up. Instead of a visual flow builder, you write your entire workflow as a regular TypeScript or Python script — with all the reliability of Windmill's execution engine behind it.

  import { task, step, sleep, waitForApproval, workflow } from "windmill-client";

  const process = task(async (x: string) => `processed: ${x}`);

  export const main = workflow(async (x: string) => {
    const a = await process(x);
    const urls = await step("get_urls", () => getResumeUrls());
    await sleep(60);
    await waitForApproval({ timeout: 3600 });
    return { processed: a };
  });

  import { task, step, sleep, waitForApproval, workflow } from "windmill-client";

  const process = task(async (x: string) => `processed: ${x}`);

  export const main = workflow(async (x: string) => {
    const a = await process(x);
    const urls = await step("get_urls", () => getResumeUrls());
    await sleep(60);
    await waitForApproval({ timeout: 3600 });
    return { processed: a };
  });

Each task() call runs as a separate checkpointed job — if your workflow fails halfway through, completed steps are skipped on retry. step() checkpoints inline code without spawning a child job. sleep() and waitForApproval() suspend server-side without holding a worker.

What's new:
- Direct function calls — no more string-based step references or passing context objects. Just wrap your functions with task() and call them normally
- Module support — split your workflow across multiple files with taskScript("./helper.ts"), each module gets its own editor tab
- Parallel execution — Promise.all() / asyncio.gather() just works
- Full primitive set — task, taskScript, step, sleep, waitForApproval, getResumeUrls
- Python & TypeScript — both languages supported with idiomatic APIs (@task() decorator in Python)
- Live timeline — real-time visualization of step execution, durations, and status in the UI

Available now in v1.652+.

https://www.windmill.dev/docs/core_concepts/workflows_as_code

Workflows as code | Windmill

How do I write workflows as code in Windmill? Use TypeScript or Python with checkpoint-based orchestration as an alternative to the visual flow editor.

Windmill•2d ago

rubenf

  import { task, step, sleep, waitForApproval, workflow } from "windmill-client";

  const process = task(async (x: string) => `processed: ${x}`);

  export const main = workflow(async (x: string) => {
    const a = await process(x);
    const urls = await step("get_urls", () => getResumeUrls());
    await sleep(60);
    await waitForApproval({ timeout: 3600 });
    return { processed: a };
  });

  import { task, step, sleep, waitForApproval, workflow } from "windmill-client";

  const process = task(async (x: string) => `processed: ${x}`);

  export const main = workflow(async (x: string) => {
    const a = await process(x);
    const urls = await step("get_urls", () => getResumeUrls());
    await sleep(60);
    await waitForApproval({ timeout: 3600 });
    return { processed: a };
  });

Workflows as code | Windmill

How do I write workflows as code in Windmill? Use TypeScript or Python with checkpoint-based orchestration as an alternative to the visual flow editor.

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