By name: governance description: Govern how the design system evolves — SemVer for tokens/components, the contribution workflow, deprecation policy, and change communication. Use when the user wants to add/promote/deprecate a component or token, decide a version bump, set up a contribution process, or keep the system from fragmenting.
Skill: Governance
Keep the system consistent as it grows. Apply versioning, contribution, and deprecation rules.
Steps
- Read
workflows/governance.md(SemVer table, contribution workflow, deprecation policy, change comms). - Classify the change: major (breaking — renamed/removed token or prop, changed anatomy/default), minor (additive — new token/component/variant/optional prop), patch (fix — contrast/bug/doc/value tweak in tolerance).
- For a new component/token: confirm it serves a real, repeated need (≥ 2 places) before promoting product → candidate → core. Design it to the full quality bar (CLAUDE.md Component Quality Bar).
- For a deprecation: mark with reason + replacement + removal version; keep working ≥ 1 minor cycle; provide a migration map (
design-systems/crosswalk.mdstyle); remove only in a major. - Wire any new file into
CLAUDE.md(File Reference Map + relevant table/router) and add a changelog entry.
Verification (definition of done)
- Change has a SemVer level and a changelog entry.
- Removals have a deprecation window, a replacement, and a migration table.
- New spec meets the 8-state + a11y + token-mapping bar and is reachable via the router.
python3 scripts/validate_tokens.pypasses; contrast re-checked if colors changed.