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404 Page Generator

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.

Use this skillView repositoryView on skills.sh
Specification
Skill ID
kostja94/marketing-skills/404-page-generator
Publisher
kostja94
Repository
marketing-skills
Installs
0
Files
1
Synced
Sep 23, 2026
How to use it

Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.

kostja94/marketing-skills/404-page-generatorInstalls these files
  • SKILL.md

What this skill tells the agent

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

ElementPurpose
Site navigationHeader/footer so users know they're still on your site
SearchHelp users find what they need
Popular pagesLinks to homepage, features, pricing, blog
Similar URLsSuggest corrections for common typos
Avoid auto-redirectUnless 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

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Use this skill in a project

Open any RiverX project, search the Skills panel for kostja94/marketing-skills/404-page-generator, and install it in one click.

Use this skill