Drupal AI Contribution — Umbrella & Router

Make AI a trusted, good-practice way to contribute to Drupal: AI-assisted code that passes drupalci, survives maintainer review on the first or second round, follows Drupal + PHP best practices, and follows the Code of Conduct and the adopted AI-contribution policy.

This skill routes a contribution request to the right stage and supplies the knowledge layer. It does not run the stages itself — each stage is a worker skill.

Core principle — evidence over assertion

Every gate passes only on a produced artifact: a command's output, a file diff, a live API response, a real pipeline result. Never on the model stating "done", "passes", or "should work". The cross-cutting discipline lives in the contribution-guardrails skill — invoke it during any development between issue and verify.

The contribution arc — detect-driven, not a forced sequence