LoginSign Up
← Back to all sparks
W

Windmill

INFRA · APIS
Velocity5.0

Open-source developer platform to build internal tools and workflows from scripts

www.windmill.dev ↗

Windmill keeps turning AI clients into the place you build and run its workflows.

mcpai-agentsworkflow-automationpermissionsfull-code-apps
◆Current state
Windmill has spent the last six weeks wiring AI into every layer: standalone agents, compaction memory, an AI decision step, Slack-answering agents, and a single /api/mcp endpoint that lets Claude, ChatGPT or Cursor write, test and deploy workspace code. Alongside that it is formalizing who can do what, with default Developer and Operator roles and seat-priced operator build rights. The latest release, Tailwind v4 compilation for full-code apps, is frontend plumbing that makes those apps easier to style.
◆Where it's heading
The direction is clear: Windmill wants to be the execution backend that AI clients drive, not just a UI people click through. MCP moved from a tool list to a build-and-deploy surface, then to interactive cards inside the chat. The roles and seat changes suggest it is preparing to price the wider set of people who can now build through AI.
◆Prediction
Expect more of the deploy and review lifecycle to surface inside MCP clients, and finer-grained role controls over which MCP tools each role gets.

◆Recent moves

  1. 3d ago

    Tailwind CSS v4 in full-code apps

    Full-code apps now compile Tailwind v4 in both the web editor and the CLI, including classes from the shared /ui folder. It removes a styling workaround for the full-code apps Windmill has been opening up to operators and AI clients.

    View source ↗
  2. 10d ago

    Instance groups linked to IdP groups without SCIM

    Superadmins can link an instance group to an identity-provider group, and each SAML or OIDC login syncs membership from the groups claim without SCIM. It lowers the setup needed for group-based access in self-hosted instances.

    View source ↗
  3. 10d ago

    Flow-level timeout

    A flow can now carry one timeout for its whole run, including time spent sleeping or waiting at an approval. It caps long-running flows that the new approval steps could otherwise leave open indefinitely.

    View source ↗
  4. 12d ago

    Vault secret references

    Variables can point to an existing HashiCorp Vault secret instead of storing a copy, with the value read from Vault on each access. Teams that keep secrets in Vault no longer have to duplicate them into Windmill.

    View source ↗
  5. 18d ago

    Windmill cards in Claude and ChatGPT

    Runs, run tables, deploy reviews and workspace items now render as interactive cards inside Claude and ChatGPT via MCP Apps. It extends the week-old unified MCP server from text tools to a usable interface inside the chat.

    View source ↗
  6. 18d ago

    Tool approval and questions for AI agents

    Agent runs can now pause for a person without tying up a worker: scripts, flows or MCP tools can require approval, and a built-in Ask a question tool collects a choice or missing detail from the run page or chat. It moves Windmill's agents toward human-in-the-loop control over what they execute.

    View source ↗