Jörn Seidel
@casoon
Freiberuflicher Softwareentwickler mit Schwerpunkt auf modernen Webtechnologien, nativen Apps und schlanken Architekturen.
11
Published Tools
28
Total Stars
461
Weekly Downloads
11
GitHub Followers
124
Public Repos
98/100
Avg Security
Published Tools
3 MCP Servers8 Skillsacross 5 categoriesjseidel
A lightweight Web Vitals monitoring component for Astro with debug overlay and analytics support
jseidel
Astro integration that generates robots.txt, llms.txt, sitemap.xml, security.txt, and humans.txt at build time from typed configuration.
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Professional website analysis suite with robust accessibility testing, Core Web Vitals performance monitoring, SEO analysis, and content optimization insights. Features isolated browser contexts, retry mechanisms, and comprehensive API endpoints for profe
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Astro integration for post-build auditing: SEO, links, and lightweight WCAG checks
jseidel
opengrid as an MCP App: the grid in a chat client, driven by keyboard and by the model through one view
jseidel
MCP server that inspects data and validates, renders and describes chartlet charts
jseidel
Policy-first crawler control for Astro — generates robots.txt and llms.txt with presets, per-bot rules, AI crawler registry, and build-time audits.
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Modular, lightweight CSS framework and design system for modern web projects. Optimized for Astro JS, LightningCSS and Container Queries with @layer-based architecture and comprehensive accessibility.
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Generate PDF invoices, XRechnung XML, and ZUGFeRD PDF/A-3 from JSON data with TypeScript support
Complete utility system for Tailwind CSS v4 - Essential layout, accessibility, and UI utilities with tree-shaking
jseidel
MCP server for Webspire — AI-native discovery of CSS snippets, UI patterns, canvas effects, page templates, and font recommendations
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