Claude instructions

Before making any edits to this repository, read architecture.md to understand the project structure, content model, build process, and conventions.

Key things to be aware of:

• Content lives under posts/ as Markdown with YAML frontmatter. posts/posts.json applies the base "post" tag to all files in that tree.
• Layouts chain: post.html / book.html / post-p5.html → template.html.
• The build entry point is index.js (not a standard eleventy --serve command): it first syncs Pinboard quicklinks, then runs Eleventy.
• Images in posts go through the image shortcode (generates AVIF/WebP/JPEG at multiple sizes). Don't add raw <img> tags for content images.
• Environment variables required: PINBOARD_TOKEN (build) and DEPLOY_HOOK (Netlify scheduled function).