Blog Cover Generator
Varnan-Tech/opendirectory
A skill your agent uses when the user asks to generate a blog cover image, thumbnail, or article header.
When the user wants to implement, optimize, or audit favicon and app icons.
Install Favicon Generator
$ npx skills add kostja94/marketing-skills --skill favicon-generator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kostja94/marketing-skills favicon-generator --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/kostja94/marketing-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/components/branding/favicon .claude/skills/favicon-generator && 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 "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .claude/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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/kostja94/marketing-skills/tree/main/skills/components/branding/faviconType 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 kostja94/marketing-skills --skill favicon-generator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kostja94/marketing-skills favicon-generator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kostja94/marketing-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/components/branding/favicon .agents/skills/favicon-generator && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .agents/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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 kostja94/marketing-skills --skill favicon-generator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kostja94/marketing-skills favicon-generator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kostja94/marketing-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/components/branding/favicon .cursor/skills/favicon-generator && 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 "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .cursor/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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/kostja94/marketing-skills.git --path skills/components/branding/favicon--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 kostja94/marketing-skills --skill favicon-generator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kostja94/marketing-skills favicon-generator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kostja94/marketing-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/components/branding/favicon .gemini/skills/favicon-generator && 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 "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .gemini/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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 kostja94/marketing-skills favicon-generatorInstalls 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 kostja94/marketing-skills --skill favicon-generator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kostja94/marketing-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/components/branding/favicon .github/skills/favicon-generator && 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 "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .github/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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 kostja94/marketing-skills --skill favicon-generator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kostja94/marketing-skills favicon-generator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kostja94/marketing-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/components/branding/favicon .opencode/skills/favicon-generator && 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 "favicon-generator" agent skill from https://github.com/kostja94/marketing-skills/tree/main/skills/components/branding/favicon into .opencode/skills/favicon-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "favicon-generator", 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
favicon-generator- GitHub stars
- 1k
- Token cost
- ~1.3k tokens
- SKILL.md length
- 543 words
- Files
- 1
- Skills in repo
- 102
- Repo updated
- First seen
- Licence
- MIT
At a glance
When the user wants to implement, optimize, or audit favicon and app icons.
- Works in 3 steps: Tech stack: Next.js, WordPress, static… → PWA: Is the site a PWA or planning to be? → Existing assets: Logo, icon files
- Wants to implement
- SKILL.md covers Initial Assessment, Required Sizes, Formats and Google Search (SERP Display), plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Favicon Generator is an agent skill from kostja94/marketing-skills. When the user wants to implement, optimize, or audit favicon and app icons. Also use when the user mentions "favicon," "app icon," "browser icon," "touch icon," "PWA icon," "favicon sizes," "apple-touch-icon," "favicon.ico," "site icon," or "tab icon." For visual system, use brand-visual-generator.
Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Media & Creative, covering Logo and visual identity and Web search. The repository describes itself as: Agent Skills for Marketing — SEO, Social, Influencer & More. 160+ open-source skills for SEO, content, 40+ page types, paid ads, channels, and strategies. Add project context… The licence is MIT.
When your agent uses it
- Wants to implement
- Audit favicon and app icons
- The user mentions favicon
- Apple-touch-icon
Example prompts
- “favicon,”
- “app icon,”
- “browser icon,”
- “/favicon-generator”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Tech stack: Next.js, WordPress, static HTML, etc.
- PWA: Is the site a PWA or planning to be?
- Existing assets: Logo, icon files
What it can do on your machine
Read from SKILL.md and the folder at commit 8dd89c5. 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 (its code samples are html).
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):
developers.google.com
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
Favicon Generator loads about 1.3k tokens when it runs. Until then it costs about 79 tokens; SKILL.md has 543 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 kostja94/marketing-skills at commit 8dd89c5, republished under its MIT licence (© kostja94). 543 words, ~1,275 tokens.
Download SKILL.mdSave it as
.claude/skills/favicon-generator/SKILL.md (or your agent's skills folder).- name
- favicon-generator
- description
- When the user wants to implement, optimize, or audit favicon and app icons. Also use when the user mentions "favicon," "app icon," "browser icon," "touch icon," "PWA icon," "favicon sizes," "apple-touch-icon," "favicon.ico," "site icon," or "tab icon." For visual system, use brand-visual-generator.
- metadata.version
- 1.0.1
Components: Favicon
Guides favicon and app icon implementation for brand consistency across browser tabs, bookmarks, mobile home screens, and Google Search results. Favicons help users identify sites; missing or incorrect icons hurt trust.
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.
Initial Assessment
Project context: Read root contextus.md when present and load only the modules relevant to this task. Without Contextus, use available project material or user-provided facts and ask for missing information; do not create a parallel context system.
Identify:
- Tech stack: Next.js, WordPress, static HTML, etc.
- PWA: Is the site a PWA or planning to be?
- Existing assets: Logo, icon files
Required Sizes
| Size | Use |
|---|---|
| 16x16 | Browser tabs, standard displays |
| 32x32 | Retina/HiDPI browser tabs |
| 180x180 | Apple Touch Icon (iOS home screen); no transparency |
| 192x192 | Android Chrome home screen, PWA launcher |
| 512x512 | PWA splash screens, adaptive icons |
Optional: 48x48, 96x96, 120x120, 152x152, 167x167, 256x256 for broader coverage.
Formats
| Format | Use |
|---|---|
| SVG | Modern browsers; scalable; supports dark mode via media queries; lightweight |
| PNG | High-DPI; explicit sizes; easy to generate; required for Apple Touch Icon |
| ICO | Legacy; bundles multiple sizes; fallback for older browsers |
Recommended: Provide SVG + PNG fallbacks. Never skip Apple Touch Icon (180x180); iOS shows a generic screenshot without it.
Google Search (SERP Display)
See serp-features for SERP feature types and optimization.
Favicons can appear in Google Search results next to your site's listings. Google Search Central requirements:
| Requirement | Guideline |
|---|---|
| Placement | Add <link rel="icon" href="/path/to/favicon.ico"> to homepage header |
| One per hostname | One favicon per hostname; example.com and code.example.com are separate; example.com/sub-site shares the same favicon |
| Crawlability | Googlebot-Image must crawl favicon; Googlebot must crawl homepage; do not block either in robots.txt |
| Shape | Square (1:1 aspect ratio); minimum 8x8px; preferably >48x48px for quality across platforms |
| Stable URL | Do not change favicon URL frequently |
| Appropriate | No inappropriate content (pornography, hate symbols); Google may replace with default icon |
| Timing | Crawling can take days to weeks; use Search Console URL Inspection to request indexing |
Supported rel values: icon, shortcut icon, apple-touch-icon, apple-touch-icon-precomposed. href can be relative (/favicon.ico) or absolute; favicon can be hosted on CDN.
Show full SKILL.md (166 more words)Show less
Implementation
HTML Link Tags
<link rel="icon" href="/favicon.ico" sizes="any">
<link rel="icon" href="/icon.svg" type="image/svg+xml">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32.png">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">Next.js
Place in /app: favicon.ico, icon.png, apple-icon.png. Next.js auto-generates tags.
PWA Manifest
Include icons array in manifest.json with 192x192 and 512x512 for maskable icons.
Best Practices
- Simplicity: At 16x16, complex details are illegible; use simplified logo mark; design for brand recognition in SERPs
- Consistency: Favicon should match logo/brand (logo-generator, brand-visual-generator)
- Cache: Use long cache; version for updates (e.g.
/favicon.ico?v=2) - Tools: RealFaviconGenerator, favicon.io, or favicons npm package for automation
- Test: Check across browsers, dark mode, and Search Console (favicon may take days to weeks to appear)
Output Format
- Size checklist (16, 32, 180, 192, 512; >48x48 for Google Search)
- Format recommendations (SVG, PNG, ICO)
- Implementation notes per tech stack (homepage header placement)
- Google Search checklist (crawlability, stable URL, appropriate content)
- Manifest (if PWA)
Related Skills
- logo-generator: Favicon typically derived from logo; consistent branding
- media-kit-page-generator: Media kit should include favicon or link to brand assets
- brand-visual-generator: Visual identity; favicon aligns with brand colors and mark
- indexing: Favicon requires crawlable homepage; URL Inspection for indexing
© kostja94, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/components/branding/favicon of kostja94/marketing-skills.
Open the folder on GitHubat commit 8dd89c5
Compare with similar skills
Favicon Generator 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 |
|---|---|---|---|---|---|---|
| Favicon Generator this skillkostja94/marketing-skills | 1k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Blog Cover GeneratorVarnan-Tech/opendirectory | 674 | — | ~1k | Automated safety check: Pass | MIT | |
| Brand and Design Toolkitnextlevelbuilder/ui-ux-pro-max-skill | 134k | 1 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Anthropic Brand Stylinganthropics/skills | 180k | 30 repos | ~559 | Automated safety check: Pass | Apache-2.0 | |
| Logo Designkaankiziltug/logo-design-skill | 2.4k | — | ~4.4k | Automated safety check: Pass | MIT | |
| Logo Generatorop7418/logo-generator-skill | 2.2k | — | ~1.8k | Automated safety check: Notes | None |
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Applies Anthropic's brand colors and fonts to artifacts such as PowerPoint slides, using fixed hex values for text and accents, Poppins headings and Lora body text.
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Generate professional SVG logos and high-end showcase images.
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Related
Categories
Questions about Favicon Generator
What does Favicon Generator do?
When the user wants to implement, optimize, or audit favicon and app icons. Favicon Generator is an agent skill from kostja94/marketing-skills. When the user wants to implement, optimize, or audit favicon and app icons.
When should I use Favicon Generator?
Favicon Generator fits situations like: wants to implement; audit favicon and app icons; the user mentions favicon; apple-touch-icon.
How do I install Favicon Generator in Claude Code?
Run `npx skills add kostja94/marketing-skills --skill favicon-generator -a claude-code`. Or copy the skill folder (skills/components/branding/favicon in kostja94/marketing-skills) into .claude/skills/favicon-generator in your project. Claude Code loads it when a task matches its description.
How do I install Favicon Generator in Codex?
Run `npx skills add kostja94/marketing-skills --skill favicon-generator -a codex`. Or copy the skill folder (skills/components/branding/favicon in kostja94/marketing-skills) into .agents/skills/favicon-generator in your project. Codex loads it when a task matches its description.
Can I use Favicon Generator 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 kostja94/marketing-skills --skill favicon-generator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/favicon-generator, .gemini/skills/favicon-generator, .github/skills/favicon-generator and .opencode/skills/favicon-generator in your project.
What does Favicon Generator need to run?
SKILL.md names no scripts, command-line tools or credentials: Favicon Generator is instructions for the agent only.
Does Favicon Generator access the network?
SKILL.md names 1 domain. As links in the text: developers.google.com. This is read from the text; nothing was executed.
Is Favicon Generator 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 Favicon Generator use?
Favicon Generator 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 Favicon Generator use?
About 1.3k tokens (SKILL.md is roughly 5.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Favicon Generator?
Skills that share tags, products or a category with Favicon Generator: Blog Cover Generator (Varnan-Tech/opendirectory, 674 stars), Brand and Design Toolkit (nextlevelbuilder/ui-ux-pro-max-skill, 134k stars), Anthropic Brand Styling (anthropics/skills, 180k stars) and Logo Design (kaankiziltug/logo-design-skill, 2.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Favicon Generator?
kostja94 (a GitHub user) maintains it in kostja94/marketing-skills, which has 1,025 GitHub stars. The repository holds 102 skills in this directory. The repository was last updated on October 6, 2026.
Source: kostja94/marketing-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.