hashgraph-online/awesome-codex-plugins · plugins/BestLemoon/codex-seo/skills/seo-hreflang/SKILL.md

seo-hreflang skillA

seo-hreflang is agent-read markdown (skill) from hashgraph-online/awesome-codex-plugins: Hreflang and international SEO audit, validation, and generation. Detects common mistakes, validates language/region codes, and generates correct hreflang implementations. Use when user says "hreflang", "i18n SEO", "international SEO", "multi-language", "multi-region", or "language tags"..

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 hashgraph-online/awesome-codex-plugins/seo-hreflang@v1.7.0
Exact content
mdr add hashgraph-online/awesome-codex-plugins/seo-hreflang@sha256:eab248b9c5065150

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_rmpqjoqw752sxqrh.svg)](https://markdownregistry.com/a/art_rmpqjoqw752sxqrh)

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Versions

versioncommittedcommitsizeaudit
v1.7.0 latest2026-04-03 80062a5 8,672 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 (8672 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

hashgraph-online/awesome-codex-plugins · 1,030 stars · license Apache-2.0 · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_rmpqjoqw752sxqrh
GET https://markdownregistry.com/api/v1/resolve?ref=hashgraph-online/awesome-codex-plugins/seo-hreflang
GET https://markdownregistry.com/api/v1/blob/eab248b9c50651507e0ae9090cfe7593b8c99fd2878346150e45da261aaf04cd

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