cls-optimisation SKILL.md skillA
cls-optimisation from afeezadebayo/technical-seo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add afeezadebayo/technical-seo-skills/cls-optimisation@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- afeezadebayo/technical-seo-skills
- Path
cls-optimisation/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1.0, committed Oct 18, 2026
- Size
- 9,621 bytes
- Repository stars
- 2
- License
- MIT
Diagnose and fix Cumulative Layout Shift: field data at the 75th percentile, shift attribution, reserved space for images, embeds and ads, overlay banners, size-adjusted fallback fonts, transform-based animations, back/forward cache eligibility, code patterns and WordPress fixes. Use whenever Search Console flags poor CLS, pages jump while loading, ads or banners push content, fonts cause text to reflow, or someone wants to improve Core Web Vitals visual stability.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# CLS Optimisation Cumulative Layout Shift (CLS) measures how much visible content moves unexpectedly while a page is used: text jumping as an image loads, buttons moving as an ad appears, a banner pushing the page down. A CLS of 0.1 or less is good, measured at the 75th percentile of real page loads. [Confirmed, web.dev CLS] Layout shifts cause misclicks, lost reading position and distrust, and they are usually easy to fix once the shifting elements are found. This skill diagnoses and fixes CLS: finding which elements shift and why, then reserving space for images, video, embeds and ads, handling web fonts, avoiding content inserted above existing content, using CSS transforms for animations, and keeping pages eligible for the back/forward cache so return visits do not shift. ## Operating principles 1. **Reserve space for everything that loads late.** Images, embeds, ads and dynamic blocks get fixed dimensions or aspect ratios. 2. **Never insert above existing content** unless the user asked for it. 3. **Fonts should not reflow the page.** Match fallback fonts and load key fonts early. 4. **Animate with transforms.** Move things without changing layout. …
Read the whole file at its exact version.
How to install
mdr add afeezadebayo/technical-seo-skills/cls-optimisation@sha256:39c96dd95b80dc08The line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_5cobk6u2rwbjef5p)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 18, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9621 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
afeezadebayo/technical-seo-skills · 2 stars · license MIT · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5cobk6u2rwbjef5p GET https://markdownregistry.com/api/v1/resolve?ref=afeezadebayo/technical-seo-skills/cls-optimisation GET https://markdownregistry.com/api/v1/blob/39c96dd95b80dc086c4b2e4385e7585ccb0576f25c58846d251568218b9cbe57
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.