responsive

responsive is a skill for Claude Code, Codex from silvioventre/lovable-skills. It costs 157 tokens per session (1,547 once invoked), scanned A, original, MIT.

A skill for making websites, apps and components usable across screen sizes, including phones, tablets and zoomed views. It checks measured layout behaviour such as reflow, overflow and touch-target size.

In plain words
What is it for?
Use it when making a page responsive, fixing mobile or tablet layouts, testing narrow screens, or checking behaviour at 400% zoom.
Why use it?
It helps find mobile and accessibility problems such as horizontal scrolling, clipped content and controls that are too small to use.

Skill for Claude CodeCodex

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

Good fit Use it when making a page responsive, fixing mobile or tablet layouts, testing narrow screens, or checking behaviour at 400% zoom.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/silvioventre/lovable-skills/responsive
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 silvioventre/lovable-skills --skill responsive
Clone the repo
git clone --depth 1 https://github.com/silvioventre/lovable-skills

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/silvioventre/lovable-skills/responsive/github.svg)](https://agentmods.dev/skills/silvioventre/lovable-skills/responsive)
Your own site
<a href="https://agentmods.dev/skills/silvioventre/lovable-skills/responsive"><img src="https://agentmods.dev/badge/skills/silvioventre/lovable-skills/responsive/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/silvioventre/lovable-skills/responsive"><img src="https://agentmods.dev/badge/skills/silvioventre/lovable-skills/responsive.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 157 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,547 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 $0.00157 $0.01547
Opus 5 $0.00078 $0.00773
Sonnet 5 $0.00031 $0.00309
Haiku 4.5 $0.00016 $0.00155

Measured 9d ago against content hash 629c7facaf1d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

responsive 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 9d ago.

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.

skills/design-and-ux/responsive/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Responsive

Make the target work correctly at every screen size, then prove it. This is a mechanical discipline with a pass/fail gate, not a matter of taste — a layout either survives 320px and 400% zoom or it does not.

Responsive is not "it has breakpoints." A page with md: and lg: variants everywhere can still fail every gate below. What counts is measured behavior at real widths.

The gate

The work is done when all seven hold on every surface in scope. Report each one explicitly; never claim "responsive" without walking this list.

  1. No horizontal scroll at any width from 320px upward. Not hidden — absent.
  2. Content reflows at 320px with nothing lost or unreachable (WCAG 1.4.10). Two-dimensional content — data tables, maps, diagrams, code — may scroll inside its own container.
  3. Usable at 400% zoom on a 1280px viewport, which is the same 320 CSS px reflow requirement reached the other way. Test both; they expose different bugs.
  4. Every interactive target is at least 24×24 CSS px (WCAG 2.2 AA, SC 2.5.8), or has 24px of clear spacing around it. Primary touch actions get 44×44.
  5. Body text is at least 16px on mobile. Below that, iOS Safari zooms the whole page when a field takes focus.
  6. No fixed heights on anything containing text. Text grows with translation, user font settings, and long content.
  7. No content under the notch, home indicator, or browser chrome on devices that have them.

A gate item you could not verify is reported as unverified, never as passed.

Procedure

1. Scope and map

Name the surfaces in scope. If the user said "the whole app," list the routes and confirm the list rather than sweeping silently — a full app sweep is many surfaces, and they should know what you are about to touch.

For each surface, note which of its regions are structural (page shell, navigation, main grid) and which are components that get reused in different-sized slots. Structural regions belong to media queries; reusable components belong to container queries. Getting this split right prevents most of the churn.

Read the full file on GitHub · 81 lines

Files

What ships with it

4 files 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. 9d ago First seen · 81 lines · 157 tokens per session scan A 629c7facaf1d

Subscribe to this mod's changes

responsive is a skill published in the GitHub repository silvioventre/lovable-skills (2 stars, last pushed 15d ago), licensed MIT. It adds 157 tokens to every session and 1,547 once invoked, about $0.0008 per session on Opus 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 2026-08-31.

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