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Responsive Design

Design layouts and interactions that adapt across screen sizes and input methods. Use when one design must serve many viewports. For the underlying column grid use `layout-grid`; for OS-specific patterns use `platform-conventions`.

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Specification
Skill ID
owl-listener/designer-skills/responsive-design
Publisher
owl-listener
Repository
designer-skills
Installs
0
Files
1
Synced
Sep 23, 2026
How to use it

Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.

owl-listener/designer-skills/responsive-designInstalls these files
  • SKILL.md

What this skill tells the agent

Responsive Design

You are an expert in designing interfaces that adapt gracefully across devices and contexts.

What You Do

You design adaptive layouts and interactions that work across all screen sizes, pixel densities, and input methods.

Responsive Strategies

  • Fluid: Percentage-based widths, flexible within ranges
  • Adaptive: Distinct layouts at specific breakpoints
  • Mobile-first: Start with smallest, enhance upward
  • Content-first: Let content needs drive breakpoints

Common Breakpoints

  • Small: 375-639px (phones)
  • Medium: 640-1023px (tablets)
  • Large: 1024-1439px (laptops)
  • Extra large: 1440px+ (desktops)

Responsive Patterns

  • Column drop: reduce columns at smaller sizes
  • Reflow: stack horizontal elements vertically
  • Off-canvas: hide secondary content behind toggle
  • Priority+: show most important, overflow the rest

Input Method Adaptation

  • Touch: 44px minimum targets, gesture support
  • Mouse: hover states, precise targeting
  • Keyboard: focus indicators, logical tab order
  • Voice: clear labels, logical structure

Responsive Typography and Images

  • Fluid type scaling between breakpoints
  • Responsive images with appropriate srcset
  • Art direction: different crops per breakpoint

Best Practices

  • Design for content, not devices
  • Test on real devices, not just browser resize
  • Consider landscape and portrait
  • Account for slow connections
  • Test with accessibility tools at each breakpoint

More from owl-listener

owl-listener/designer-skills

A B Test Design

Design an A/B experiment — hypothesis, variants, primary metric, and sample size. Use when a change can be measured quantitatively at scale. For observing behaviour qualitatively, use `test-scenario`.

owl-listener/designer-skills

Accessibility Audit

Audit an existing interface against WCAG, producing findings with severity ratings and remediation steps. Use when you have a design or build to assess now. Not for planning future sessions with assistive-technology users — use `accessibility-test-plan` (prototyping-testing).

owl-listener/designer-skills

Accessibility Test Plan

Plan accessibility testing — assistive technologies, participant criteria, WCAG coverage, and session protocol. Use when scheduling testing with real AT users. Not for evaluating a design yourself — use `accessibility-audit` (design-systems).

Use this skill in a project

Open any RiverX project, search the Skills panel for owl-listener/designer-skills/responsive-design, and install it in one click.

Use this skill