Skills/skills.sh/modern-web-guidance

modern-web-guidance@r1

VERIFIED· install only

Publisher claims: "Search tool for modern web development best practices. MANDATORY: Execute FIRST for all HTML/CSS and clientside JS tasks. Do NOT skip — web APIs evolve rapidly and training weights contain obsolete patterns. Trigger immediately for: modals/dialogs/popovers, tables, dark mode, anchor positioning, container queries, view transitions, scroll-driven animations, parallax/reveals, forms, validation, autofill, accessibility, custom selects, scrollbars, CWV (LCP, INP, CLS), content-visibility, fetch priority, image optimization, security, passkeys, HTML sanitization, web components, dates/timezones, built-in AI, WebAssembly, standard HTML/CSS/DOM in frameworks, etc. DO NOT trigger for: backend (SQL, ORMs, API routes), infra/scripts (CI/CD, Docker, Actions, Python/Go, Git), or tooling/trivial (Vite, tsconfig, ESLint, tests, copy/renames, 3P docs), etc. " Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry skills.shPublisher googlechrome · publishing for 19 daysInstalls 49,524Last detonated 4d ago
$npx skills add modern-web-guidance
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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

Is modern-web-guidance@r1 safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-10 and scored it 84/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

CRITICAL
HTML comment carrying imperative instructions to the agentguides/forms/animated-select-picker.md:22 · HTML comment carrying imperative instructions to the agentAlways use a <label> linked via 'for' to the select for accessibilityFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
CRITICAL
HTML comment carrying imperative instructions to the agentguides/forms/autofill-address-form.md:68 · HTML comment carrying imperative instructions to the agentAlternative: one input per line, each with its own autocomplete tokenFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
HIGH
Collapsed <details> block carrying instructionsguides/html/html.md:273 · Collapsed <details> block carrying instructions` element. - **DON'T** nest other interactive elements (links, buttons) directly inside `<summary>` text as it may break expected focus behavior and screen readFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
CRITICAL
HTML comment carrying imperative instructions to the agentguides/forms/autofill-payment-form.md:67 · HTML comment carrying imperative instructions to the agentPrefix with shipping or billing; note that the valid token is address-line1 (no hyphen before the digit)Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
MEDIUM
npx invocation of non-well-known packageSKILL.md:74 · npx invocation of non-well-known package — may execute untrusted code… `-y`); on Windows, use `npx.cmd`. When requesting tool permissions, allowlist `npx -y modern-web-guidance@latest *` (or `pnpx modern-web-guidance@latest *`) specific…Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packageSKILL.md:23 · npx invocation of non-well-known package — may execute untrusted codenpx -y modern-web-guidance@latest search "<query>" --skill-version 2026_11_09-5bcc021bFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packageSKILL.md:63 · npx invocation of non-well-known package — may execute untrusted codenpx -y modern-web-guidance@latest legacy-scan <path> --jsonFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packageSKILL.md:36 · npx invocation of non-well-known package — may execute untrusted codenpx -y modern-web-guidance@latest retrieve "<id>"Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packageSKILL.md:72 · npx invocation of non-well-known package — may execute untrusted code## Using npx / pnpxFix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈2,444 tok
1 file · 60 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.