Twitter Cards

Handles Twitter Card meta tags so your links look good when shared on X. You get the four card types (summary, summary_large_image, app, player), recommended image specs (1200×675px, under 5MB), and implementation examples for Next.js and plain HTML. It reminds you that Twitter falls back to Open Graph tags if you skip the twitter:card tags, which is why most people add both. The validator link is handy for testing before you ship. One thing to note: it correctly treats Twitter Cards as purely about link previews, not about crafting the actual post copy, which matters when you're thinking about your sharing strategy.

skills.sh installs: 1.1K
GitHub stars: 1.1K
last updated: Aug 21, 2026

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Install

$ npx -y skills add kostja94/marketing-skills --skill twitter-cards --agent claude-code

Installs into .claude/skills of the current project.

Files

SEO On-Page: Twitter Cards

Owns X/Twitter Card writing and implementation rules. page-metadata owns the full-page lifecycle and release verification. Platforms may use Open Graph fallbacks, so define X-specific copy only when it adds value.

When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Scope (Social Sharing)

Twitter Cards: X-specific meta tags; control how links appear when shared on X/Twitter

Card Types

Type	Use case
summary	Small card with thumbnail
summary_large_image	Large prominent image (recommended; 1200×675px)
app	Mobile app promotion
player	Video/audio content