Good fit for
- Audience definition
- Segment expression
- Structured builders
This structured builders pattern works best when its purpose is clear in the surrounding page hierarchy.
Open experiment
Builder Policy Rule Builder
Constructs nested business rules with explicit scope and evaluation order for queries, formulas, rules, and relationships; it is designed to construct complex structured values with readable output and testability. Groups can be added, nested, reordered, tested, and described in plain language. The data builders variant is specialized for nested logic must remain keyboard operable and explainable. Users can construct complex structured values with readable output and testability while understanding the current state, available choices, and resulting consequence.
Lab tested Responsive Dark mode Interactive
- Version
- 1.0.0
- Updated
- 2026-08-05
- Dependencies
- Zero
Preparing the interactive workbench…
Preparing the interactive workbench…
Implementation field notes
Use builder policy rule builder confidently.
The preview and source are only the starting point. Use these notes to decide where the component fits, preserve its accessibility contract, and verify the adapted result.
Accessibility contract
- The primary purpose and current state remain available as text and do not depend on color, motion, pointer position, or visual geometry.
- Every interaction has keyboard equivalence, visible focus, predictable Escape behavior where applicable, and appropriately scoped status announcements.
- Reduced-motion, 200% zoom, long-content, narrow-container, and forced-color behavior are part of the implementation acceptance criteria.
Integration plan
- Copy the standalone HTML and scoped CSS into an isolated page.
- Adapt input signal, interpretation highlight, input surface, primary text through the Inspector.
- Connect the defensive JavaScript, then test every control with a keyboard.
- Review the result at 375, 768, 1024, and 1440 pixels before shipping.
Related learning