socialmedia-optimization SKILL.md skillA
socialmedia-optimization from valtterimelkko/agent-workflow-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add valtterimelkko/agent-workflow-skills/socialmedia-optimization@git:20260611.b2584e4Pins git:20260611.b2584e4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- valtterimelkko/agent-workflow-skills
- Path
skills/socialmedia-optimization/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260611.b2584e4, committed Jun 11, 2026
- Size
- 7,946 bytes
- Repository stars
- 2
- License
- MIT
Implement and validate Open Graph, Twitter Card, and social preview metadata for websites. Use when the task is about preview cards, meta tags, social sharing behaviour, or fixing broken previews. Do not use this for generating the image assets themselves unless paired with web-asset-generator.
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
# Social Media Optimization Skill Guide for implementing social media sharing optimization including Open Graph Protocol, Twitter Cards, image dimensions, and validation tools. ## Quick Reference ### Essential Meta Tags (Minimum Required) ```html <!-- Open Graph --> <meta property="og:title" content="Compelling Headline (60-90 chars)"> <meta property="og:type" content="article"> <meta property="og:image" content="https://yoursite.com/og-image.jpg"> <meta property="og:url" content="https://yoursite.com/page"> <!-- Twitter --> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:title" content="Compelling Headline"> <meta name="twitter:description" content="Description under 200 chars"> <meta name="twitter:image" content="https://yoursite.com/og-image.jpg"> ``` ### Image Dimensions by Platform | Platform | Size | Aspect Ratio | File Max | |----------|------|--------------|----------| | **Universal** | 1200 × 630 px | 1.91:1 | < 1 MB | | Facebook | 1200 × 630 px | 1.91:1 | 8 MB | | LinkedIn | 1200 × 627 px | 1.91:1 | 8 MB | | Twitter/X | 1200 × 628 px | 1.91:1 | 5 MB | | Pinterest | 1000 × 1500 px | 2:3 | 20 MB | …
Read the whole file at its exact version.
How to install
mdr add valtterimelkko/agent-workflow-skills/socialmedia-optimization@sha256:94c5ed3b8a617209The line at the top of this page pins the label git:20260611.b2584e4, 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_ya5ckddt27nuw2ev)
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Versions
The registry has recorded 1 version of this file, committed on Jun 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 (7946 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
valtterimelkko/agent-workflow-skills · 2 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ya5ckddt27nuw2ev GET https://markdownregistry.com/api/v1/resolve?ref=valtterimelkko/agent-workflow-skills/socialmedia-optimization GET https://markdownregistry.com/api/v1/blob/94c5ed3b8a6172096c10a6072e365047bd9e061f2d71677dea81d30ef200e47b
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.