Forms · core

Numeric stepper

field.stepper

Numeric stepper: An input control that gathers, changes, or validates a value.

numeric stepperthe place you enter a valuethe input control

States8

Touch target44px

Evidence6

Introduced by5 kits

Visual specimen

Same contract. Every kit voice.

NaN

MAVAN renderingdefault

Translation table

What code calls it.

Web<input>This component is composed from multiple web primitives.pattern

ARIAtextbox or input roleNo single ARIA role represents the complete component.pattern

SwiftUIStepperThe nearest named SwiftUI API.direct

AppKitNSStepperThe nearest named AppKit API.direct

Anatomy

Every part, named.

1Label
2Input surface
3Current value or placeholder
4Supporting or error text
5Focus and validation treatment

Often confused with

Similar shape. Different contract.

Sliderfield.slider

Shares a visual family, but has a different role, state model, or interaction contract.

Bounded rangefield.range

Shares a visual family, but has a different role, state model, or interaction contract.

Prompt · paste into your agent

Ask for the exact thing.

Implement the canonical Numeric stepper component (field.stepper). Numeric stepper: An input control that gathers, changes, or validates a value. Support these states: default, hover, focus-visible, active, disabled, filled, error, loading. Use semantic design tokens rather than raw visual values. Preserve a minimum 44px touch target where interactive. Provide and verify: implementation, state-matrix, responsive, keyboard, touch, reduced-motion. Keep the component API stable so every Studio kit can supply its own rendering without changing the behavior contract.

Studio contract

What must be proven.

Required states

default · hover · focus-visible · active · disabled · filled · error · loading

Required evidence

implementation · state-matrix · responsive · keyboard · touch · reduced-motion

Source union

jade · lumen · aurora · cabana · purple-rain