Agent Skills
› sediman-agent/OpenSkynet
› twitter-cards
twitter-cards
GitHub指导在网页中配置 Twitter Card 元标签，以优化链接在 X/Twitter 上的预览效果。涵盖标签规范、图片要求及 Next.js/HTML 实现示例。
触发场景
添加或优化 Twitter Card 元数据
提及 'Twitter Card'、'twitter:card'、'X preview' 等关键词
安装
npx skills add sediman-agent/OpenSkynet --skill twitter-cards -g -y
SKILL.md
Frontmatter
{
"name": "twitter-cards",
"metadata": {
"version": "1.1.0"
},
"description": "When the user wants to add or optimize Twitter Card metadata for X (Twitter) link previews. Also use when the user mentions \"Twitter Card,\" \"twitter:card,\" \"twitter:image,\" \"twitter:title,\" \"X preview,\" or \"tweet preview.\" For Facebook\/LinkedIn previews, use open-graph."
}
SEO On-Page: Twitter Cards
Guides implementation of Twitter Card meta tags for X (Twitter) link previews. Twitter falls back to Open Graph if Twitter-specific tags are missing; add both for best results.
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 |
Recommended Tags (summary_large_image)
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Title">
<meta name="twitter:description" content="Your description">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:site" content="@yourusername">
<meta name="twitter:creator" content="@authorusername">
<meta name="twitter:image:alt" content="Alt text for image">
| Tag | Guideline |
|---|---|
| twitter:card | Required; summary_large_image for most pages |
| twitter:title | Max 70 chars; concise title |
| twitter:description | Max 200 chars; summary |
| twitter:image | Absolute URL; unique per page |
| twitter:site | @username of website |
| twitter:creator | @username of content creator |
| twitter:image:alt | Alt text; max 420 chars; accessibility |
Image Requirements
| Item | Guideline |
|---|---|
| Aspect ratio | 2:1 |
| Minimum | 300×157 px |
| Recommended | 1200×675 px |
| Max | 4096×4096 px |
| File size | Under 5MB |
| Formats | JPG, PNG, WebP, GIF (first frame only); SVG not supported |
Common Mistakes
- Missing Twitter Card tags (Twitter won't display images properly without them)
- Using relative image URLs instead of absolute https://
- Images too small or wrong aspect ratio
- Title/description too long (gets truncated)
Implementation
Next.js (App Router)
export const metadata = {
twitter: {
card: 'summary_large_image',
title: '...',
description: '...',
images: ['https://example.com/twitter.jpg'],
site: '@yourusername',
creator: '@authorusername',
},
};
HTML (generic)
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Title">
<meta name="twitter:description" content="Your description">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:site" content="@yourusername">
<meta name="twitter:image:alt" content="Alt text">
Testing
- X (Twitter): Card Validator
Related Skills
- social-share-generator: Share buttons use Twitter Cards for X previews when users share; Cards must be set for share buttons to show proper previews
- open-graph: OG tags; Twitter falls back to OG if Twitter tags missing
- title-tag: Title tag often mirrors twitter:title
- meta-description: Meta description often mirrors twitter:description
- page-metadata: Hreflang, other meta tags
- twitter-x-posts: X post copy and engagement (different from link previews)
版本历史
- c9d8953 当前 2026-07-05 20:04
