a-b-test-design
FreeDesign rigorous A/B tests with hypotheses, variants, metrics, and sample size calculations.
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Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
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See how to installReview the instructions the agent will receive before you install.
Review files for compliance with Web Interface Guidelines.
file:line formatFetch fresh guidelines before each review:
https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md
Use WebFetch to retrieve the latest rules. The fetched content contains all the rules and output format instructions.
When a user provides a file or pattern argument:
If no files specified, ask the user which files to review.
After identifying issues, use ui-ux-pro-max to get deeper remediation guidance per category:
# Accessibility findings
python3 skills/ui-ux-pro-max/scripts/search.py "accessibility contrast aria keyboard" --domain ux
# Form UX findings
python3 skills/ui-ux-pro-max/scripts/search.py "forms validation error feedback" --domain ux
# Animation / motion findings
python3 skills/ui-ux-pro-max/scripts/search.py "animation reduced-motion timing" --domain ux
# Navigation findings
python3 skills/ui-ux-pro-max/scripts/search.py "navigation breadcrumb back behavior" --domain ux
# Performance / layout findings
python3 skills/ui-ux-pro-max/scripts/search.py "layout shift lazy loading performance" --domain ux
Map findings from the audit to the closest domain keyword above. The ui-ux-pro-max Quick Reference (sections 1–9) covers every category the guidelines checker surfaces.
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Design rigorous A/B tests with hypotheses, variants, metrics, and sample size calculations.
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When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," "how long should I run this test," "growth experiments," "experiment velocity," "experiment backlog," "ICE score," "experimentation program," or "experiment playbook." Use this whenever someone is comparing two approaches and wants to measure which performs better, or when they want to build a systematic experimentation practice. For tracking implementation, see analytics. For page-level conversion optimization, see cro.
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Format CVs for academic positions with publications, grants, and teaching
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Conduct a comprehensive accessibility audit against WCAG guidelines with severity ratings and remediation steps.
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Create accessibility testing plans covering assistive technologies and WCAG criteria.
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When the user wants to generate, iterate, or scale ad creative — headlines, descriptions, primary text, or full ad variations — for any paid advertising platform. Also use when the user mentions 'ad copy variations,' 'ad creative,' 'generate headlines,' 'RSA headlines,' 'bulk ad copy,' 'ad iterations,' 'creative testing,' 'ad performance optimization,' 'write me some ads,' 'Facebook ad copy,' 'Google ad headlines,' 'LinkedIn ad text,' or 'I need more ad variations.' Use this whenever someone needs to produce ad copy at scale or iterate on existing ads. For campaign strategy and targeting, see ads. For landing page copy, see copywriting.
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