Agent-Skills.md

Agent Skills: Astro Assets

Image and asset optimization in Astro 6 — <Image />, <Picture />, getImage(), remote images, @astrojs/sharp, Fonts API, OG image generation with Satori, Cloudinary/Imgix. Use for any image optimization or asset handling task.

UncategorizedID: fusengine/agents/astro-assets

Repository

fusengine/agents
fusengineLicense: MIT
7

Install this agent skill to your local

pnpm dlx add-skill https://github.com/fusengine/agents/tree/HEAD/plugins/astro-expert/skills/astro-assets

Skill Files

Browse the full folder contents for astro-assets.

Download Skill

Loading file tree…

plugins/astro-expert/skills/astro-assets/SKILL.md

Skill Metadata

Name
astro-assets
Description
Image and asset optimization in Astro 6 — <Image />, <Picture />, getImage(), remote images, @astrojs/sharp, Fonts API, OG image generation with Satori, Cloudinary/Imgix. Use for any image optimization or asset handling task.

Astro Assets

Production-ready image optimization and asset management with astro:assets in Astro 6.

Agent Workflow (MANDATORY)

Before ANY implementation, use TeamCreate to spawn 3 agents:

  1. fuse-ai-pilot:explore-codebase - Analyze existing image usage and asset patterns
  2. fuse-ai-pilot:research-expert - Verify astro:assets API via Context7/Exa
  3. mcp__context7__query-docs - Check Astro 6 Fonts API and image component docs

After implementation, run fuse-ai-pilot:sniper for validation.

Overview

When to Use

  • Displaying optimized images with automatic WebP/AVIF conversion
  • Building responsive images with multiple breakpoints
  • Loading remote images from external CDNs
  • Configuring custom fonts without layout shift
  • Generating OG images dynamically with Satori
  • Integrating Cloudinary or Imgix as image CDN

Key Modules

| Module | Exports | |--------|---------| | astro:assets | <Image />, <Picture />, getImage() | | @astrojs/sharp | Default image processing service | | Fonts API (Astro 6) | Built-in experimental.fonts config |

Core Concepts

Image Component

<Image /> automatically optimizes local and remote images. Always provide alt. Use priority for above-the-fold images. Defaults to WebP output.

Picture Component

<Picture /> generates <source> elements for multiple formats. Use formats={['avif', 'webp']} for best compression with fallback.

getImage()

For server-side image generation (API routes, CSS background images). Returns { src, attributes } object.

Fonts API (Astro 6)

Built-in font optimization via experimental.fonts in astro.config.mjs. Zero layout shift, automatic preloading, supports Google Fonts and local fonts.

Reference Guide

Concepts

| Topic | Reference | When to Consult | |-------|-----------|-----------------| | Image Component | image-component.md | Local/remote image display | | Responsive Images | picture-responsive.md | Multi-format, srcset, sizes | | Remote Images | remote-images.md | External URLs, inferSize | | Fonts API | fonts-api.md | Zero-CLS font loading | | OG with Satori | og-satori.md | Dynamic OG image generation | | CDN Integration | cdn-integration.md | Cloudinary, Imgix setup |

Templates

| Template | When to Use | |----------|-------------| | image-setup.md | Full image optimization setup | | og-image-route.md | Dynamic OG image API route |

Best Practices

  1. Always provide alt - Required for accessibility and SEO
  2. Use priority for LCP - Above-the-fold images load eagerly
  3. inferSize for remote - Avoids layout shift without known dimensions
  4. Fonts API over @font-face - Built-in optimization, no manual preload
  5. Satori at build time - Run OG generation during SSG, not SSR