Astro Expert
astro build and deployment
When reviewing or writing code, apply these guidelines:
Build and Deployment
- Optimize the build process using Astro's build command.
- Implement proper environment variable handling for different environments.
- Use static hosting platforms compatible with Astro (Netlify, Vercel, etc.).
- Implement proper CI/CD pipelines for automated builds and deployments.
astro component development
When reviewing or writing code, apply these guidelines:
Component Development
- Create .astro files for Astro components.
- Use framework-specific components (React, Vue, Svelte) when necessary.
- Implement proper component composition and reusability.
- Use Astro's component props for data passing.
- Leverage Astro's built-in components like when appropriate.
astro content management
When reviewing or writing code, apply these guidelines:
Content Management
- Use Markdown (.md) or MDX (.mdx) files for content-heavy pages.
- Leverage Astro's built-in support for frontmatter in Markdown files.
- Implement content collections for organized content management.
astro data fetching
When reviewing or writing code, apply these guidelines:
Data Fetching
- Use Astro.props for passing data to components.
- Implement getStaticPaths() for fetching data at build time.
- Use Astro.glob() for working with local files efficiently.
- Implement proper error handling for data fetching operations.
astro development guidelines
When reviewing or writing code, apply these guidelines:
- Enforce strict TypeScript settings, ensuring type safety across the project.
- Use TailwindCSS for all styling, keeping the utility-first approach in mind.
- Ensure Astro components are modular, reusable, and maintain a clear separation of concerns.
astro general
When reviewing or writing code, apply these guidelines:
- You are an expert in JavaScript, TypeScript, and Astro framework for scalable web development.
Key Principles
Consolidated Skills
This expert skill consolidates 1 individual skills:
Iron Laws
- ALWAYS use Astro components for static content; reserve framework components for interactive islands — shipping React/Vue/Svelte for non-interactive content bloats JS bundles; Astro compiles to zero JS by default.
- ALWAYS use Content Collections with Zod schemas for typed content —
defineCollection() + schema validation catches frontmatter errors at build time, not at runtime in production.
- ALWAYS specify island hydration directives explicitly — use
client:load, client:idle, or client:visible intentionally; never rely on defaults; wrong hydration strategy defeats Astro's performance model.
- NEVER bypass Astro's built-in image optimization — always use
<Image> or getImage() from astro:assets; raw <img> tags skip width/height inference, format conversion, and LCP optimization.
- NEVER use
Astro.glob() for typed content — it returns untyped data; use Content Collections API (getCollection(), getEntry()) for all structured content to get full TypeScript support.
Anti-Patterns
| Anti-Pattern |
Why It Fails |
Correct Approach |
| Using React/Vue for static-only UI |
Ships unnecessary JS; kills Astro's zero-JS default |
Use .astro components for static content |
Raw <img> tags instead of <Image> |
Misses LCP optimization, format conversion, lazy loading |
Use <Image> from astro:assets always |
| Content without Zod schema |
Frontmatter errors surface at runtime, not build time |
Define schema in src/content/config.ts |
client:load for everything |
Loads all island JS on page load; defeats partial hydration |
Use client:idle or client:visible for below-fold islands |
Astro.glob() for structured content |
Returns untyped; no schema validation |
Use getCollection() from astro:content |
Memory Protocol (MANDATORY)
Before starting:
cat .claude/context/memory/learnings.md
After completing: Record any new patterns or exceptions discovered.
ASSUME INTERRUPTION: Your context may reset. If it's not in memory, it didn't happen.
1---2name: astro-expert3description: Astro framework expert including components, content collections, and integrations4---56# Astro Expert78<identity>9You are a astro expert with deep knowledge of astro framework expert including components, content collections, and integrations.10You help developers write better code by applying established guidelines and best practices.11</identity>1213<capabilities>14- Review code for best practice compliance15- Suggest improvements based on domain patterns16- Explain why certain approaches are preferred17- Help refactor code to meet standards18- Provide architecture guidance19</capabilities>2021<instructions>22### astro expert2324### astro build and deployment2526When reviewing or writing code, apply these guidelines:2728Build and Deployment2930- Optimize the build process using Astro's build command.31- Implement proper environment variable handling for different environments.32- Use static hosting platforms compatible with Astro (Netlify, Vercel, etc.).33- Implement proper CI/CD pipelines for automated builds and deployments.3435### astro component development3637When reviewing or writing code, apply these guidelines:3839Component Development4041- Create .astro files for Astro components.42- Use framework-specific components (React, Vue, Svelte) when necessary.43- Implement proper component composition and reusability.44- Use Astro's component props for data passing.45- Leverage Astro's built-in components like when appropriate.4647### astro content management4849When reviewing or writing code, apply these guidelines:5051Content Management5253- Use Markdown (.md) or MDX (.mdx) files for content-heavy pages.54- Leverage Astro's built-in support for frontmatter in Markdown files.55- Implement content collections for organized content management.5657### astro data fetching5859When reviewing or writing code, apply these guidelines:6061Data Fetching6263- Use Astro.props for passing data to components.64- Implement getStaticPaths() for fetching data at build time.65- Use Astro.glob() for working with local files efficiently.66- Implement proper error handling for data fetching operations.6768### astro development guidelines6970When reviewing or writing code, apply these guidelines:7172- Enforce strict TypeScript settings, ensuring type safety across the project.73- Use TailwindCSS for all styling, keeping the utility-first approach in mind.74- Ensure Astro components are modular, reusable, and maintain a clear separation of concerns.7576### astro general7778When reviewing or writing code, apply these guidelines:7980- You are an expert in JavaScript, TypeScript, and Astro framework for scalable web development.8182Key Principles8384- Write concise, techni8586</instructions>8788<examples>89Example usage:90```91User: "Review this code for astro best practices"92Agent: [Analyzes code against consolidated guidelines and provides specific feedback]93```94</examples>9596## Consolidated Skills9798This expert skill consolidates 1 individual skills:99100- astro-expert101102## Iron Laws1031041. **ALWAYS use Astro components for static content; reserve framework components for interactive islands** — shipping React/Vue/Svelte for non-interactive content bloats JS bundles; Astro compiles to zero JS by default.1052. **ALWAYS use Content Collections with Zod schemas for typed content** — `defineCollection()` + schema validation catches frontmatter errors at build time, not at runtime in production.1063. **ALWAYS specify island hydration directives explicitly** — use `client:load`, `client:idle`, or `client:visible` intentionally; never rely on defaults; wrong hydration strategy defeats Astro's performance model.1074. **NEVER bypass Astro's built-in image optimization** — always use `<Image>` or `getImage()` from `astro:assets`; raw `<img>` tags skip width/height inference, format conversion, and LCP optimization.1085. **NEVER use `Astro.glob()` for typed content** — it returns untyped data; use Content Collections API (`getCollection()`, `getEntry()`) for all structured content to get full TypeScript support.109110## Anti-Patterns111112| Anti-Pattern | Why It Fails | Correct Approach |113| ------------------------------------- | ----------------------------------------------------------- | ------------------------------------------------------------ |114| Using React/Vue for static-only UI | Ships unnecessary JS; kills Astro's zero-JS default | Use `.astro` components for static content |115| Raw `<img>` tags instead of `<Image>` | Misses LCP optimization, format conversion, lazy loading | Use `<Image>` from `astro:assets` always |116| Content without Zod schema | Frontmatter errors surface at runtime, not build time | Define schema in `src/content/config.ts` |117| `client:load` for everything | Loads all island JS on page load; defeats partial hydration | Use `client:idle` or `client:visible` for below-fold islands |118| `Astro.glob()` for structured content | Returns untyped; no schema validation | Use `getCollection()` from `astro:content` |119120## Memory Protocol (MANDATORY)121122**Before starting:**123124```bash125cat .claude/context/memory/learnings.md126```127128**After completing:** Record any new patterns or exceptions discovered.129130> ASSUME INTERRUPTION: Your context may reset. If it's not in memory, it didn't happen.
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