seo-images SKILL.md skillA
seo-images from haniubub/seo-toolkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add haniubub/seo-toolkit/seo-images@v2.2.5Pins v2.2.5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- haniubub/seo-toolkit
- Path
skills/seo-images/SKILL.md- Versions recorded
- 1
- Latest version
- v2.2.5, committed Sep 11, 2026
- Size
- 16,604 bytes
- Repository stars
- 8
- License
- a license file GitHub does not identify
Image optimization analysis for SEO and performance. Checks alt text, file sizes, formats, responsive images, lazy loading, CLS prevention, image SERP rankings (via DataForSEO), and image file optimization (WebP/AVIF conversion, IPTC/XMP metadata injection). Use when user says "image optimization", "alt text", "image SEO", "image size", "image audit", "optimize images", "image metadata", "image SERP", "convert to webp", or "image file optimize".
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
# Image Optimization Analysis ## Checks ### Alt Text - Present on all `<img>` elements (except decorative: `role="presentation"`) - Descriptive: describes the image content, not "image.jpg" or "photo" - Includes relevant keywords where natural, not keyword-stuffed - Length: 10-125 characters **Good examples:** - "Professional plumber repairing kitchen sink faucet" - "Red 2024 Toyota Camry sedan front view" - "Team meeting in modern office conference room" **Bad examples:** - "image.jpg" (filename, not description) - "plumber plumbing plumber services" (keyword stuffing) - "Click here" (not descriptive) ### File Size **Tiered thresholds by image category:** | Image Category | Target | Warning | Critical | |----------------|--------|---------|----------| | Thumbnails | < 50KB | > 100KB | > 200KB | | Content images | < 100KB | > 200KB | > 500KB | | Hero/banner images | < 200KB | > 300KB | > 700KB | Recommend compression to target thresholds where possible without quality loss. ### Format | Format | Browser Support | Use Case | |--------|-----------------|----------| | WebP | 97%+ | Default recommendation | | AVIF | 92%+ | Best compression, newer | …
Read the whole file at its exact version.
How to install
mdr add haniubub/seo-toolkit/seo-images@sha256:00c1e22f2d8294b7The line at the top of this page pins the label v2.2.5, 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_77ubzwtfiksxkmqh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 11, 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 (16604 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
haniubub/seo-toolkit · 8 stars · license a license file GitHub does not identify · pushed 2026-09-11 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_77ubzwtfiksxkmqh GET https://markdownregistry.com/api/v1/resolve?ref=haniubub/seo-toolkit/seo-images GET https://markdownregistry.com/api/v1/blob/00c1e22f2d8294b7684bca241d94f797bb4cf6bd1e71e6f09a7a44b0533d80ef
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.
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