astro

astro is a skill for Claude Code, Codex from dallay/agentsync. It costs 75 tokens per session (1,071 once invoked), scanned A, original, MIT.

A guide for building content-focused websites with Astro, a web framework that supports pages, reusable components, static builds, and server rendering.

In plain words
What is it for?
Use it when working with Astro projects, including .astro files, static site generation, server rendering, content collections, or deployment adapters.
Why use it?
It provides the project structure and commands needed to create, check, build, and deploy an Astro site.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dallay/agentsync/astrolicious-astro
Any agent
npx skills add dallay/agentsync --skill astrolicious-astro
Clone the repo
git clone --depth 1 https://github.com/dallay/agentsync

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for astro

README.md
[![agentmods](https://agentmods.dev/badge/skills/dallay/agentsync/astrolicious-astro.svg)](https://agentmods.dev/skills/dallay/agentsync/astrolicious-astro)
Your own site
<a href="https://agentmods.dev/skills/dallay/agentsync/astrolicious-astro"><img src="https://agentmods.dev/badge/skills/dallay/agentsync/astrolicious-astro.svg" alt="Measured on agentmods" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,071 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00075 $0.01071
Opus 5 $0.00037 $0.00535
Sonnet 5 $0.00015 $0.00214
Haiku 4.5 $0.00007 $0.00107

Measured 4d ago against content hash 64b0cfb9774b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

astro scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • astro — 98% identical, 13 lines differ
.agents/skills/astrolicious-astro/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Astro Usage Guide

Always consult docs.astro.build for code examples and latest API.

Astro is the web framework for content-driven websites.


Quick Reference

File Location

CLI looks for astro.config.js, astro.config.mjs, astro.config.cjs, and astro.config.ts in: ./. Use --config for custom path.

CLI Commands

  • npx astro dev - Start the development server.
  • npx astro build - Build your project and write it to disk.
  • npx astro check - Check your project for errors.
  • npx astro add - Add an integration.
  • npx astro sync - Generate TypeScript types for all Astro modules.

Re-run after adding/changing plugins.

Project Structure

Reference project structure docs.

  • src/* - Project source code (components, pages, styles, images, etc.)
  • src/pages - Required. Defines all pages and routes.
  • src/components - Components (convention, not required).
  • src/layouts - Layout components (convention, not required).
  • src/styles - CSS/Sass files (convention, not required).
  • public/* - Non-code, unprocessed assets (fonts, icons, etc.); copied as-is to build output.
  • package.json - Project manifest.
  • astro.config.{js,mjs,cjs,ts} - Astro configuration file. (recommended)
  • tsconfig.json - TypeScript configuration file. (recommended)

Core Config Options

Option Notes
site Your final, deployed URL. Used to generate sitemaps and canonical URLs.

Example astro.config.ts

import { defineConfig } from 'astro/config';

export default defineConfig({
  site: 'https://example.com',
});

Common Workflows

Creating a Basic Page

Add a file to src/pages/ — the filename becomes the route:

---
// src/pages/index.astro
const title = 'Hello, Astro!';
---
<html>
  <head><title>{title}</title></head>
  <body>
    <h1>{title}</h1>
  </body>
</html>

Creating a Component

Read the full file on GitHub · 141 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 141 lines · 75 tokens per session scan A 64b0cfb9774b

Subscribe to this mod's changes

astro is a skill published in the GitHub repository dallay/agentsync (57 stars, last pushed today), licensed MIT. It adds 75 tokens to every session and 1,071 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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