skills: Deterministic design critique for HTML/CSS: 73 slop guards from the rules professional designers use

by Gesso-Build · Agent Tool · ★ 91

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install skills

npx skills add Gesso-Build/skills
/plugin marketplace add Gesso-Build/skills

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 65/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

Quick Facts

Stars91
Forks5
LanguageTypeScript
CategoryAgent Tool
LicenseMIT
Quality Score65/100
Open Issues1
Last Updated2026-09-10
Created2026-07-28
Platformsnode
Est. Tokens~17k

About skills

@gessobuild/anti-slop A deterministic design critique for HTML/CSS, extracted from the set of rules professional designers use in production-grade designs. "Slop" is the set of visual tells that make generated UI read as generated: the gradient-clipped headline, the indigo accent nobody chose, the puffy stacked drop-shadow, the emoji standing in for an icon system, the row of equal dots faking a...

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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