测量页面加载时内容意外移动的程度并查找原因，检查图片尺寸、广告预留空间、字体显示和动画，提出改善布局稳定性的方案，减少误点击和阅读中断。
Use when auditing slow page loads, heavy assets, or rendering delays related to Minimize cumulative layout shift. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
此技能帮助排查并改善页面加载时内容位置突然移动的问题。它使用Lighthouse或PageSpeed Insights测量反映视觉稳定性的CLS指标，以低于0.1为参考目标。检查范围包括图片和嵌入内容的宽高、广告和横幅的预留空间、字体显示方式及动画，并具体指出可能引发布局偏移的位置。
适用于阅读中的文字突然被向下推移，或按钮移动导致误点击的页面。对于包含大量图片或动态内容的网站，也可用来考虑如何预留显示空间，以及如何安排加载顺序。
transform。”提出改善方案前，会先通过DevTools、Lighthouse或实际使用环境中收集的数据确认原因。流程包含以Lighthouse或PageSpeed Insights进行测量的步骤。
本介绍由 AI（OpenAI Codex）根据公开的 SKILL.md 撰写。准确的规格请查看下方原文。
AI 仅根据 SKILL.md 的内容，从 4 个方面进行了评估。星标数和热度不计入评估。
总分按每项 A=25 分、B=15 分、C=5 分相加。 由 AI（OpenAI Codex）于 2026年10月23日 评估。仅供参考，安装前请同时查看原文。
安装前可以查看交给 AI 代理的指令内容。
Layout shifts cause accidental clicks, reading disruption, and user frustration—a good CLS score ensures content stays where users expect it.
Measure CLS using Lighthouse or PageSpeed Insights. Verify score is below 0.1 for good visual stability.
Reserve space for images/embeds with dimensions, use font-display strategies, and avoid injecting content above existing content.
Explain how CLS measures visual stability and why unexpected layout shifts frustrate users and cause accidental clicks.
Review the routes, assets, and loading behavior that affect Minimize cumulative layout shift. Flag exact files, requests, or rendering steps that add unnecessary network, CPU, or layout cost, and describe the measurement method used to confirm the issue.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/performance/cumulative-layout-shift
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Create and review custom 404 pages that help visitors recover from broken or moved links through search and navigation. Check the rendered page and HTTP response so missing content returns a proper 404 status.
中文简介正在准备中。当前显示英语简介。
Audit or create a dedicated About page that explains a website’s purpose and identifies its people or organization. Review the rendered output and supporting information, including expertise and contact details, to find gaps.
中文简介正在准备中。当前显示英语简介。
Review and add automated accessibility checks for components, pages, and continuous integration workflows. Use axe-based tools to detect structural and attribute issues, while identifying checks that still need keyboard or screen reader testing.
中文简介正在准备中。当前显示英语简介。
Review sign-in, registration, multi-factor authentication, and account recovery for accessibility barriers. Find blocked paste, difficult code entry, and inaccessible backup methods, then suggest authentication paths that support password managers, autofill, or device approval.
中文简介正在准备中。当前显示英语简介。
Review form errors, success messages, and live updates so screen reader users receive important notifications. Check the HTML delivered to the browser, announcement settings, display duration, and dismissal controls, then identify specific elements that need changes.
中文简介正在准备中。当前显示英语简介。
Review HTML tables so screen reader users can understand how headers and data relate. Check header markup, table descriptions, and merged cells, then identify specific fixes and ways to verify them.
中文简介正在准备中。当前显示英语简介。