Dark Factory

Dark Factory is an open-source prompt from ELU Labs that sets up and runs an autonomous software factory for a web app in a GitHub repository. The README says intent goes in and shipped software comes out, with no human writing or reviewing the code. Grok Bots run the factory, and ELU supplies real-user insight and verification.

What It Is

Dark Factory is a prompt-driven workflow rather than a conventional installed application. You give a Grok Bot access to your repository and point it at the PROMPT.md file, which it follows for that repository.

According to the README, the Grok Bots handle specs, scenarios, parallel builders, digital twins of third-party services, verification, merges, progressive deploys, and the factory's own improvement.

What ELU Adds

The README describes ELU as providing what the bots cannot get from their own computer:

• Data on what real users do and where they fail.
• Browser agents that use your app like a real user.
• A verdict on every pull request.
• A real-user comparison on every release.

Setup Path

You need a web app in a GitHub repository and branch protection on the default branch. The factory signs you in to ELU with one link and builds previews, CI, and progressive deploys if they are missing. Optionally, you can supply an API key for a non-Grok model so the Verifier does not share the Builders' blind spots. Issues and pull requests against PROMPT.md are the suggested way to improve it.