Contribution criteria prevent design systems from becoming component dumps

Shared repositories decay when every local solution enters the system without evidence, ownership, or maintenance commitments.

Contribution criteria require proposals to demonstrate recurring needs, consistency, versatility, usability, and implementation quality.

GOV.UK reviews components and patterns before publication, including representative research with users who have disabilities.

This gate protects coherence, although excessive central control can delay useful experimentation and local learning.

Shared product ownership with accountable maintainers sets coherent direction and sustainable maintenance.

Testable component documentation with runnable states supplies concrete review evidence for every proposed contribution.

Teams should incubate uncertain patterns locally, observe repeated use, then promote stable solutions with migration support.

A contribution process succeeds when it balances system integrity with a credible path for change.