Cover Skill
kangarooking/kangarooking-skills
A skill your agent uses for the owner's personal creator-content thumbnails and covers for short video, Bilibili, Douyin, WeChat, or similar platforms from a title, summary, established real…
A skill your agent uses when auditing Open Graph tags or generating og:image assets.
Install Og Image Size
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist og-image-size --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/og-image-size .claude/skills/og-image-size && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .claude/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-sizeType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist og-image-size --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/og-image-size .agents/skills/og-image-size && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .agents/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist og-image-size --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/og-image-size .cursor/skills/og-image-size && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .cursor/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/thedaviddias/Front-End-Checklist.git --path skills/og-image-size--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist og-image-size --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/og-image-size .gemini/skills/og-image-size && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .gemini/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install thedaviddias/Front-End-Checklist og-image-sizeInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/og-image-size .github/skills/og-image-size && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .github/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist og-image-size --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/og-image-size .opencode/skills/og-image-size && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "og-image-size" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/og-image-size into .opencode/skills/og-image-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "og-image-size", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
og-image-size- GitHub stars
- 74k
- Token cost
- ~573 tokens
- SKILL.md length
- 289 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when auditing Open Graph tags or generating og:image assets.
- Auditing Open Graph tags
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Generating og:image assets
What it does
Og Image Size is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing Open Graph tags or generating og:image assets. Applies to any page that may be shared on social networks or messaging platforms.
Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
It sits in Media & Creative, covering Social media graphics and Messaging and chat bots. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Auditing Open Graph tags
- Generating og:image assets
Example prompts
- “/og-image-size”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
frontendchecklist.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Og Image Size loads about 573 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 40 tokens; SKILL.md has 289 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 289 words, ~573 tokens.
Download SKILL.mdSave it as
.claude/skills/og-image-size/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- og-image-size
- description
- Use when auditing Open Graph tags or generating og:image assets. Applies to any page that may be shared on social networks or messaging platforms.
- metadata.category
- seo
- metadata.priority
- medium
- metadata.difficulty
- beginner
- metadata.estimatedTime
- 10
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/seo/og-image-size
OG Image Size
An incorrectly sized og:image is displayed poorly or not at all on social platforms—Facebook, Twitter/X, LinkedIn each crop or skip images that don't meet their requirements, resulting in blank or distorted link previews.
Quick Reference
- og:image should be 1200×630 pixels (1.91:1 aspect ratio)
- Minimum size is 600×315 pixels; smaller images may not display
- File size should stay under 5 MB; under 1 MB is preferred
- Use JPEG or PNG; WebP has limited support on older platforms
Check
Find the og:image meta tag in <head> and fetch the image URL. Check the image dimensions and file size. Flag if width < 1200px, height < 630px, aspect ratio differs significantly from 1.91:1, or file size exceeds 5 MB.
Fix
Generate or resize the og:image to exactly 1200×630 pixels. Export as JPEG at 80–85% quality to balance visual quality and file size. Reference the absolute HTTPS URL in the og:image meta tag. Add og:image:width and og:image:height tags to help platforms render the image without downloading it first.
Explain
Social platforms use og:image to construct the visual card shown when a URL is shared. An image too small may be skipped or shown as a thumbnail. An image with the wrong aspect ratio gets cropped, often cutting off important content. The recommended 1200×630 size ensures optimal display across Facebook, LinkedIn, Slack, and iMessage.
Code Review
Check the og:image meta tag value. Fetch the image and verify: (1) dimensions are at least 1200×630 px, (2) aspect ratio is approximately 1.91:1, (3) file size is under 5 MB, (4) URL is absolute HTTPS, (5) og:image:width and og:image:height tags match actual dimensions. Flag relative URLs or images smaller than 600×315 px.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/seo/og-image-size
© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/og-image-size of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Og Image Size next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Og Image Size this skillthedaviddias/Front-End-Checklist | 74k | — | ~573 | Automated safety check: Pass | MIT | |
| Cover Skillkangarooking/kangarooking-skills | 662 | — | ~2.9k | Automated safety check: Pass | None | |
| Ig StoryJakeschincariol/instagram-agent-skill | 760 | — | ~1.1k | Automated safety check: Pass | MIT | |
| DiscordCraftOS-dev/CraftBot | 392 | 2 repos | ~1.8k | Automated safety check: Pass | MIT | |
| Generate Meme Gif Packlisamsung/agent-meme-forge | 104 | — | ~973 | Automated safety check: Pass | MIT | |
| Social Cover DirectorJamailar/Beav | 1.8k | — | ~1.7k | Automated safety check: Warn | Custom licence |
Similar skills
Ig Story
Jakeschincariol/instagram-agent-skill
Write the day's Instagram Stories - the frame-by-frame sequence, which stickers to use where, and the one that moves people into the DMs.
Discord
CraftOS-dev/CraftBot
A skill your agent uses when you need to control Discord from Clawdbot via the discord tool: send messages, react, post or upload stickers, upload emojis, run polls, manage threads/pins/search…
Generate Meme Gif Pack
lisamsung/agent-meme-forge
A skill your agent uses when the user wants to turn a reference image or text concept into a WeChat-ready animated Chinese meme GIF sticker pack: 16/24 entries, 240x240 GIFs, Chinese captions…
Social Cover Director
Jamailar/Beav
A skill your agent uses when the user wants to plan or generate a social media cover image for a Xiaohongshu note, Douyin/TikTok photo post, Reels/Shorts cover, WeChat/Video Account post…
Int Evolution Go
evolution-foundation/evo-nexus
Manage Evolution Go instances and send WhatsApp messages via the Evolution Go REST API.
More from thedaviddias/Front-End-Checklist
All 390 skills in this repoContent Dates Audit
thedaviddias/Front-End-Checklist
Audits article and blog pages for visible publish dates, Article JSON-LD with datePublished and dateModified, and Open Graph time tags, then fixes what is missing.
FAQPage Schema Markup
thedaviddias/Front-End-Checklist
Adds, checks and fixes FAQPage JSON-LD on pages with visible question-and-answer sections so it matches what readers see and can qualify for rich results.
Favicon Audit and Setup
thedaviddias/Front-End-Checklist
Checks that a site's favicon is linked, reachable and large enough for Google search results, and sets up ICO, SVG and Apple touch icon files when they are missing.
Content Freshness Signals
thedaviddias/Front-End-Checklist
Audits article pages for freshness signals, covering the Last-Modified header, Article JSON-LD dateModified and a visible last-updated date, and fixes mismatches.
Geo Meta Tags Audit
thedaviddias/Front-End-Checklist
Audits and fixes geo.region, geo.placename and geo.position meta tags on regional pages, noting where they help (Bing) and where they do not (Google).
Improve a Front-End Checklist Rule
thedaviddias/Front-End-Checklist
Scores and rewrites a Front-End Checklist rule MDX file against a scored quality rubric, replacing generic stub prompts with specific, actionable ones.
Related
Categories
Questions about Og Image Size
What does Og Image Size do?
A skill your agent uses when auditing Open Graph tags or generating og:image assets. Og Image Size is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing Open Graph tags or generating og:image assets.
When should I use Og Image Size?
Og Image Size fits situations like: auditing Open Graph tags; generating og:image assets.
How do I install Og Image Size in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a claude-code`. Or copy the skill folder (skills/og-image-size in thedaviddias/Front-End-Checklist) into .claude/skills/og-image-size in your project. Claude Code loads it when a task matches its description.
How do I install Og Image Size in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a codex`. Or copy the skill folder (skills/og-image-size in thedaviddias/Front-End-Checklist) into .agents/skills/og-image-size in your project. Codex loads it when a task matches its description.
Can I use Og Image Size in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thedaviddias/Front-End-Checklist --skill og-image-size -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/og-image-size, .gemini/skills/og-image-size, .github/skills/og-image-size and .opencode/skills/og-image-size in your project.
What does Og Image Size need to run?
SKILL.md names no scripts, command-line tools or credentials: Og Image Size is instructions for the agent only.
Does Og Image Size access the network?
SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Og Image Size safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Og Image Size use?
Og Image Size is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Og Image Size use?
About 573 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 944 tokens, read only when the agent opens those files.
What are the alternatives to Og Image Size?
Skills that share tags, products or a category with Og Image Size: Cover Skill (kangarooking/kangarooking-skills, 662 stars), Ig Story (Jakeschincariol/instagram-agent-skill, 760 stars), Discord (CraftOS-dev/CraftBot, 392 stars) and Generate Meme Gif Pack (lisamsung/agent-meme-forge, 104 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Og Image Size?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,421 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.