/404
When the user wants to create, optimize, or audit 404 error pages. Also use when the user mentions "404 page," "404 error," "error page," "page not found," "broken link page," "404 design," "custom 404," "404 redirect," "404 page UX," or "404 recovery." For sitewide page
$ npx -y skills add kostja94/marketing-skills --skill 404 --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/404
Context preview
The summary Claude sees to decide when to auto-load this skill.
When the user wants to create, optimize, or audit 404 error pages. Also use when the user mentions "404 page," "404 error," "error page," "page not found," "broken link page," "404 design," "custom 404," "404 redirect," "404 page UX," or "404 recovery." For sitewide page
SKILL.md
404.SKILL.mdname: 404-page-generator
description: When the user wants to create, optimize, or audit 404 error pages. Also use when the user mentions "404 page," "404 error," "error page," "page not found," "broken link page," "404 design," "custom 404," "404 redirect," "404 page UX," or "404 recovery." For sitewide page planning, use website-structure.
metadata:
version: 1.0.1
Pages: 404 Error Page
Guides 404 error page design for UX, conversion recovery, and brand consistency.
**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
**Check for project context first:** If `.claude/project-context.md` or `.cursor/project-context.md` exists, read it for brand voice, key pages, and Section 12 (Visual Identity).
Identify: 1. **Site structure**: Key pages to link (homepage, popular pages, search) 2. **Brand tone**: Friendly, professional, playful 3. **Conversion goal**: Recover lost visitors, drive to key pages
Best Practices
Clear Error Messaging
- **User-friendly**: Neutral message explaining the page wasn't found
- **Optional 404 display**: Can show "404" but avoid blaming the user
- **Empathetic tone**: Acknowledge the error gracefully; turn frustration into opportunity
Navigation and Redirection
| Element | Purpose | |---------|---------| | **Site navigation** | Header/footer so users know they're still on your site | | **Search** | Help users find what they need | | **Popular pages** | Links to homepage, features, pricing, blog | | **Similar URLs** | Suggest corrections for common typos | | **Avoid auto-redirect** | Unless confident of user intent |
Design and Branding
- **Consistent design**: Same header, footer, colors as rest of site (brand-visual-generator)
- **Avoid confusion**: Users should not think they've left your domain
- **Mobile responsive**: Test on all devices
Conversion Opportunities
404 pages can drive conversions by:
- Showcasing popular products or features
- Featuring testimonials or social proof
- Offering special promotions or value
- Linking to mobile app or newsletter
Technical
- **Track 404s**: Monitor broken links, fix or redirect
- **Accessibility**: Maintain WCAG standards
- **HTTP status**: Ensure proper 404 response code
Output Format
- **Copy** options (headline, message, CTA)
- **Link structure** (what to include)
- **Design** checklist
- **SEO**: Typically noindex; ensure canonical if needed
Related Skills
- **homepage-generator**: Primary escape route
- **brand-visual-generator**: Typography, colors for consistent 404 design
- **indexing**: noindex for 404 if desired
- **title-tag, meta-description, page-metadata**: 404 page metadata
Read more
name: 404-page-generator description: When the user wants to create, optimize, or audit 404 error pages. Also use when the user mentions "404 page," "404 error," "error page," "page not found," "broken link page," "404 design," "custom 404," "404 redirect," "404 page UX," or "404 recovery." For sitewide page planning, use website-structure. metadata: version: 1.0.1
Pages: 404 Error Page
Guides 404 error page design for UX, conversion recovery, and brand consistency.
**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
**Check for project context first:** If `.claude/project-context.md` or `.cursor/project-context.md` exists, read it for brand voice, key pages, and Section 12 (Visual Identity).
Identify: 1. **Site structure**: Key pages to link (homepage, popular pages, search) 2. **Brand tone**: Friendly, professional, playful 3. **Conversion goal**: Recover lost visitors, drive to key pages
Best Practices
Clear Error Messaging
- **User-friendly**: Neutral message explaining the page wasn't found
- **Optional 404 display**: Can show "404" but avoid blaming the user
- **Empathetic tone**: Acknowledge the error gracefully; turn frustration into opportunity
Navigation and Redirection
| Element | Purpose | |---------|---------| | **Site navigation** | Header/footer so users know they're still on your site | | **Search** | Help users find what they need | | **Popular pages** | Links to homepage, features, pricing, blog | | **Similar URLs** | Suggest corrections for common typos | | **Avoid auto-redirect** | Unless confident of user intent |
Design and Branding
- **Consistent design**: Same header, footer, colors as rest of site (brand-visual-generator)
- **Avoid confusion**: Users should not think they've left your domain
- **Mobile responsive**: Test on all devices
Conversion Opportunities
404 pages can drive conversions by:
- Showcasing popular products or features
- Featuring testimonials or social proof
- Offering special promotions or value
- Linking to mobile app or newsletter
Technical
- **Track 404s**: Monitor broken links, fix or redirect
- **Accessibility**: Maintain WCAG standards
- **HTTP status**: Ensure proper 404 response code
Output Format
- **Copy** options (headline, message, CTA)
- **Link structure** (what to include)
- **Design** checklist
- **SEO**: Typically noindex; ensure canonical if needed
Related Skills
- **homepage-generator**: Primary escape route
- **brand-visual-generator**: Typography, colors for consistent 404 design
- **indexing**: noindex for 404 if desired
- **title-tag, meta-description, page-metadata**: 404 page metadata
Markdown skill library for AI agents - SEO, content, pages, paid ads, channels, strategies. Add project context + skills; your agent delivers tailored, production-ready output. Works with Cursor, Claude Code, OpenClaw, Lovable, and any AI that reads markdown.
Repo: kostja94/marketing-skills
Other skills on kostja94-marketing-skills.
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When the user wants to analyze Google Search Console data, use the GSC API, or interpret search performance. Also use when the user mentions "GSC," "Search Console," "indexing report," "Core Web Vitals," "Enhancements," "Insights report," "search performance," "search queries,"
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When the user wants to track AI search traffic in GA4 or GSC. Also use when the user mentions "AI traffic," "ChatGPT referral," "Perplexity traffic," "AI Overviews," "GA4 AI sources," "AI search analytics," "track AI referrals," "AI search traffic," "Claude traffic," or "how to
Open skill - /traffic
When the user wants to analyze website traffic sources, attribution, or dark traffic. Also use when the user mentions "traffic sources," "dark traffic," "direct traffic," "UTM parameters," "traffic attribution," "channel attribution," "attribution optimization," "channel
Open skill - /tracking
When the user wants to set up, audit, or optimize analytics tracking (GA4, events, conversions). Also use when the user mentions "Google Analytics," "GA4," "event tracking," "conversions," "attribution model," "gtag," "data layer," "GA4 setup," "conversion tracking," "event
Open skill - /community-forum
When the user wants to promote via forums, communities, or invite users to join a community. Also use when the user mentions "forum promotion," "Indie Hacker," "Hacker News," "community growth," "Discord promotion," "vertical community," "brand encyclopedia," "Wikipedia,"
Open skill