twitter-cards

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add dalroot/agentic-seo --skill twitter-cards

Clone the repo

git clone --depth 1 https://github.com/dalroot/agentic-seo

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dalroot/agentic-seo/twitter-cards/github.svg)](https://agentmods.dev/skills/dalroot/agentic-seo/twitter-cards)

Your own site

<a href="https://agentmods.dev/skills/dalroot/agentic-seo/twitter-cards"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/twitter-cards/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dalroot/agentic-seo/twitter-cards"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/twitter-cards.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,022 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00067	$0.01022
Opus 5.5	$0.00027	$0.00409
Sonnet 5.5	$0.00013	$0.00204
Haiku 4.5	$0.00007	$0.00102

Measured today against content hash ae34b9c409d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

twitter-cards scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/seo/on-page/twitter-cards/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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.

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

Read the full file on GitHub · 108 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

today First seen · 108 lines · 67 tokens per session scan A ae34b9c409d1

Subscribe to this mod's changes

twitter-cards is a skill published in the GitHub repository dalroot/agentic-seo (25 stars, last pushed 6d ago), licensed MIT. It adds 67 tokens to every session and 1,022 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-26.

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