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responsiveness-check

Test website responsiveness across viewport widths using browser automation. Resizes a single session through breakpoints, screenshots each width, and detects layout transitions (column changes, nav switches, overflow). Produces comparison reports showing exactly where layouts break. Trigger with 'responsiveness check', 'check responsive', 'breakpoint test', 'viewport test', 'responsive sweep', 'check breakpoints', or 'test at mobile'.

Quality

88%

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security
Low

W011: Third-party content exposure detected (indirect prompt injection risk).

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

This skill’s runtime workflow ingests free text only from user-provided instructions (e.g., “responsiveness check”/URLs to test) to control which specific pages to open and screenshot; it does not read outsider-authored free text from a monitored external feed or arbitrary external content without an explicit selection by the user.

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Repository

jezweb/claude-skills

Path

plugins/dev-tools/skills/responsiveness-check/SKILL.md

Audited
Security analysis
Snyk

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