Developer tooling for design systems

Often times, the source of truth in a system lies with the engineers, not the designers. Making sure devs can maintain the system is essential.

Linting for product correctness

Inspired by this tweet thread by Rafael Mendiola, where he describes the idea of creating custom ESLint plugin to enforce rules that help developers adhere to a design system.

It culminates in an example eslint-plugin-design-system:

And here’s a good article on how to write custom ESLint plugins:

SLDS Validator

The team behind the Salesforce Lightning design system created an neat extension for VS Code:

SLDS Validator scans your markup, validates it against a database of guidelines/tips/gotchas/etc. extracted from the SLDS documentation, and offers suggestions on how to improve your code.

And it’s open source!

Splash zones

In this case, a “splash zone” refers to the parts of a system affected by a change to the system. If I edit a component, what other components are affected?

Some devs at Shopify have built a yarn splash command that determines the splash zone of changes to their component library:

Their tools is conveniently open sourced: