core-web-vitals
Improve Core Web Vitals with Targeted Fixes
Slow loading, delayed interactions, and unexpected layout shifts damage page experience. This skill guides evidence-based diagnosis and targeted fixes for LCP, INP, and CLS.
Instalar con mi Agente
Copia esta solicitud en tu Agente. Incluye la página canónica del Skill y el manifiesto.
Review the Skillstore skill "core-web-vitals" from https://skillstore.io/skills/addyosmani-core-web-vitals.md and its manifest at https://skillstore.io/api/skills/addyosmani-core-web-vitals/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Tu Agente debe seguir mostrando su plan y solicitar cualquier confirmación exigida por la política de seguridad.
Recursos legibles por agentes
Usa estos enlaces cuando un agente de IA, crawler o script necesite contexto limpio en vez de leer la página completa.
Pruébalo
Usando "core-web-vitals". The supplied trace shows the hero image request starts after stylesheet loading.
Resultado esperado:
- Finding: Late image discovery contributes to LCP resource load delay.
- Action: Make the hero image discoverable in initial HTML and give it high fetch priority.
- Verification: Repeat the trace under equivalent conditions; add preload only if discovery remains late.
Usando "core-web-vitals". A banner appears above the article after loading. Only source code is available.
Resultado esperado:
- Hypothesis: The banner may displace visible article content because its space is not reserved.
- Action: Reserve a stable banner slot or choose placement that does not move visible content.
- Verification: Capture the affected state at representative viewports before claiming a CLS failure or improvement.
Usando "core-web-vitals". The supplied interaction trace shows a long task before the click handler begins.
Resultado esperado:
- Finding: Main-thread contention contributes to input delay before event processing.
- Action: Attribute the blocking task and reduce, defer, or split its nonessential work.
- Verification: Repeat the same interaction and confirm that input delay falls without shifting cost to rendering.
Auditoría de seguridad
SeguroAll 50 static findings are false positives involving Markdown formatting, fixed imports, documentation links, example requests, and performance guidance. No evidence found of credential theft, unauthorized execution, data exfiltration, or prompt injection in the four reviewed files.
Factores de riesgo
🌐 Acceso a red (8)
📁 Acceso al sistema de archivos (4)
⚡ Contiene scripts (2)
⚙️ Comandos externos (32)
Compartir y citar este informe
Comparte el informe de evaluación versionado, la insignia neutral, la tarjeta insertable y las citas. Skillstore presenta evidencias sin decidir si este Skill es seguro.
Copiar enlace del informe
https://skillstore.io/skills/addyosmani-core-web-vitals/audits/1?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_reportInsignia Markdown
[](https://skillstore.io/skills/addyosmani-core-web-vitals?utm_source=security_passport_badge)Insignia HTML
<a href="https://skillstore.io/skills/addyosmani-core-web-vitals?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/addyosmani-core-web-vitals/security.svg" alt="Skillstore security assessment" loading="lazy"></a>Tarjeta para insertar
<iframe src="https://skillstore.io/embed/skills/addyosmani-core-web-vitals.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>Citas académicas (APA · BibTeX · CFF)
Cita APA
addyosmani. (2026). core-web-vitals security audit report (audit version 1) [Author version 2.0]. Skillstore. https://skillstore.io/skills/addyosmani-core-web-vitals/audits/1Cita BibTeX
@techreport{addyosmani-addyosmani-core-web-vitals-2026,
author = {addyosmani},
title = {core-web-vitals security audit report (audit version 1)},
institution = {Skillstore},
year = {2026},
number = {1},
url = {https://skillstore.io/skills/addyosmani-core-web-vitals/audits/1},
note = {Author version 2.0}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "core-web-vitals security audit report (audit version 1)"
version: "2.0"
type: report
authors:
- name: "addyosmani"
date-released: "2026-10-22"
url: "https://skillstore.io/skills/addyosmani-core-web-vitals/audits/1"
identifiers:
- type: other
value: "skillstore:addyosmani-core-web-vitals:audit:1"
description: "Skillstore immutable audit report identifier"
Puntuación de Skillstore
Por qué esta puntuación Confianza de la evidencia: MedioLo que puedes crear
Reduce storefront loading delays
Review a product page trace to identify delayed hero image discovery and prioritize verified LCP fixes.
Investigate slow application interactions
Analyze a sluggish dashboard interaction to distinguish main-thread contention, expensive handlers, and delayed rendering.
Resolve recurring layout shifts
Review a publishing template for unstable embeds, inserted banners, and font changes using trace evidence and responsive verification.
Prueba estos prompts
Explain LCP, INP, and CLS for my page. List their good thresholds and the evidence needed before diagnosing a failure.
Review the supplied page code for likely LCP and CLS risks. Separate hypotheses from measured findings and suggest focused verification steps.
Analyze the supplied interaction trace and field INP data. Identify the dominant delay phase, implicated work, targeted fixes, and an equivalent retest.
Use the supplied CrUX p75 data, traces, and release context to prioritize metric-specific fixes. Define equivalent lab retests and segmented RUM verification.
Mejores prácticas
- Use field evidence to prioritize user impact and browser traces to diagnose the relevant metric.
- Compare measurements under equivalent device, network, page state, and interaction conditions.
- Validate focused code changes in the lab, then wait for new field visits before claiming production improvement.
Evitar
- Treating a single browser observation as equivalent to a field p75 measurement.
- Adding image preloads, memoization, or font overrides without evidence that they address the measured cause.
- Applying broad prerendering rules without excluding sensitive routes or accounting for early side effects and resource costs.
Preguntas frecuentes
Which metrics does this skill cover?
Can it review source code without a running page?
Which tools can use this skill?
Does it include an automated performance scanner?
Can it confirm field improvements immediately?
Are all referenced measurement guides included?
Detalles del desarrollador
Autor
addyosmaniLicencia
MIT
Versión del autor
v2.0
Revisión de Skillstore
r1
Aviso de versión
La versión declarada por el autor no es un SemVer válido.
Ref.
79fc52323997649cbf5ae9e897690d43e1c131ad
Actualidad del mantenimiento
22/10/2026
Uso
0 descargas · 0 vistas
Estructura de archivos