Responsive Interface Validation

Responsive Interface Validation is a skill for Claude Code, Codex from mytech-today-now/augment-extensions. It costs 3 tokens per session (1,676 once invoked), scanned A, original, MIT.

A repeatable check for a screen-based application at different window sizes, device orientations, input methods, and accessibility settings. It covers web pages and native apps, but not print, film, or generated images.

In plain words
What is it for?
Use it to inspect and correct responsive layouts, breakpoints, browser or native screens, touch and other input modes, and accessibility settings.
Why use it?
It helps find layout and interaction problems that appear only at certain sizes, devices, browsers, or user settings. It also records the test setup so results can be repeated and unverified areas are clear.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect and correct responsive layouts, breakpoints, browser or native screens, touch and other input modes, and accessibility settings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mytech-today-now/augment-extensions/responsive-validation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add mytech-today-now/augment-extensions --skill responsive-validation
Clone the repo
git clone --depth 1 https://github.com/mytech-today-now/augment-extensions

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Responsive Interface Validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/mytech-today-now/augment-extensions/responsive-validation/github.svg)](https://agentmods.dev/skills/mytech-today-now/augment-extensions/responsive-validation)
Your own site
<a href="https://agentmods.dev/skills/mytech-today-now/augment-extensions/responsive-validation"><img src="https://agentmods.dev/badge/skills/mytech-today-now/augment-extensions/responsive-validation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Responsive Interface Validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/mytech-today-now/augment-extensions/responsive-validation"><img src="https://agentmods.dev/badge/skills/mytech-today-now/augment-extensions/responsive-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,676 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00003 $0.01676
Opus 5.5 $0.00001 $0.00670
Sonnet 5.5 $0.00001 $0.00335
Haiku 4.5 $0.00000 $0.00168

Measured today against content hash 3c6b689512e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Responsive Interface Validation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/responsive-sweep.cjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

augment-extensions/visual-design/skills/responsive-validation/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Responsive Interface Validation

Purpose

Repeatably inspect and correct a screen interface across viewport dimensions, orientations, breakpoints, input modes, and accessibility settings. This procedure does not apply viewport rules to print, film, or image-generation outputs.

1. Identify the target and available tools

Record the application, route, state, revision, and test data. Identify supported browsers, native targets, existing browser or UI runners, device farms, and screenshot review tools. Prefer the application's existing infrastructure.

Use the browser runner for web content. Use the existing native UI runner for iOS, Android, or desktop applications. Do not infer native or physical-device behavior from browser emulation.

If there is no application or usable runtime, validate this module's sweep plan and provide the steps below for a caller-supplied application. Mark all application-level layout and interaction results unverified.

2. Record the test setup

Before running, record:

  • Application revision, URL or native screen, route, account state, and test data.
  • Browser, operating system, runner, runner version, and device or emulator profile.
  • Viewport width and height in CSS pixels for browser work.
  • Device-pixel ratio separately from CSS viewport dimensions. Physical display resolution is a separate hardware or display-setting value.
  • Pointer and touch capabilities, orientation, font scaling, browser zoom, and reduced-motion setting.
  • Existing width and height media-query breakpoints and orientation or aspect-ratio queries.
  • Container-query thresholds and the component or harness used to reach each container width.
  • Known min/max widths, fixed-width regions, scroll containers, safe areas, and supported content density.

Attach the runner output and boundary screenshots. Do not include secrets or personal data in artifacts.

For this skill, a browser test resolution means viewport dimensions in CSS pixels. For example, a 390 by 844 viewport at device-pixel ratio 3 is still a 390 by 844 CSS-pixel viewport. It is not a 1170 by 2532 CSS-pixel viewport.

Read the full file on GitHub · 95 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 95 lines · 3 tokens per session scan A 3c6b689512e5

Subscribe to this mod's changes

Responsive Interface Validation is a skill published in the GitHub repository mytech-today-now/augment-extensions (4 stars, last pushed today), licensed MIT. It adds 3 tokens to every session and 1,676 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-09.

Related

Responsive Interface Validation compared with skills from other repositories

Responsive Interface Validation next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Responsive Interface Validationmytech-today-now/augment-extensionsSkill4todayMITA3Claude Code, Codex
a11y-allyproffesor-for-testing/agentic-qeSkill5242d agoMITA44Claude Code
accessibility-testingproffesor-for-testing/agentic-qeSkill5242d agoMITA50Claude Code
playwright-scannerCommunity-Access/accessibility-agentsSkill4382d agoMITA18Claude Code, Codex
visual-regression-labTheGoat395/Codex-SkillsSkill13718d agoMITA15Codex
design-tokensglebis/humane-agentic-designSkill4124d agoMITA186Claude Code, Codex
layout-rulesglebis/humane-agentic-designSkill4124d agoMITA135Claude Code, Codex