kostja94/marketing-skills · skills/seo/technical/mobile-friendly/SKILL.md

mobile-friendly skillA

mobile-friendly is agent-read markdown (skill) from kostja94/marketing-skills: When the user wants to optimize for mobile-first indexing or fix mobile usability. Also use when the user mentions "mobile-friendly," "mobile-first indexing," "mobile SEO," "responsive design," "mobile adaptation," "mobile viewport," "viewport meta," "touch targets," "font size mobile," "AMP," or "Accelerated Mobile Pages." For viewport meta, use page-metadata..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add kostja94/marketing-skills/mobile-friendly@v1.1.2
Exact content
mdr add kostja94/marketing-skills/mobile-friendly@sha256:6e0b7ed5547c28ae

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_t67xstchtyh2xgsk.svg)](https://markdownregistry.com/a/art_t67xstchtyh2xgsk)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
v1.1.2 latest2026-04-09 c409175 5,965 BA view · diff
v1.1.12026-03-27 f1ec9f7 5,965 BA view · diff
v1.1.02026-03-11 5cca54d 5,927 BA view · diff
v1.1.02026-03-11 9abc679 5,957 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5965 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

GitHub

kostja94/marketing-skills · 976 stars · license MIT · pushed 2026-06-09 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_t67xstchtyh2xgsk
GET https://markdownregistry.com/api/v1/resolve?ref=kostja94/marketing-skills/mobile-friendly
GET https://markdownregistry.com/api/v1/blob/6e0b7ed5547c28aece0439ce41339f0828256fce2e008403c99219cbe8c97f1d

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.