seo-optimizer skillA
seo-optimizer is agent-read markdown (skill) from secondsky/claude-skills: SEO optimization with keyword analysis, readability assessment, technical validation, content quality. Use for search rankings, blog posts, content audits, or encountering keyword density, readability scores, meta tags, schema markup errors..
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
mdr add secondsky/claude-skills/seo-optimizer@git:20260402.75421famdr add secondsky/claude-skills/seo-optimizer@sha256:65556f75cf5eb2e4Pin 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.
[](https://markdownregistry.com/a/art_r2a7h4s6zabpgcoa)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260402.75421fa latest | 2026-04-02 | 75421fa | 6,416 B | A | view · diff |
| git:20251224.ba827ce | 2025-12-24 | ba827ce | 6,403 B | A | view |
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 (6416 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
secondsky/claude-skills · 219 stars · license MIT · pushed 2026-09-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_r2a7h4s6zabpgcoa GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/seo-optimizer GET https://markdownregistry.com/api/v1/blob/65556f75cf5eb2e4d86f0e82f3397b0145e1067bfaef314d5a4b277fcc7d81ff
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.