agentsync: Skill for Claude Code

.agents/skills/astrolicious-astro/SKILL.md

astro is a skill for Claude Code, Codex from dallay/agentsync. It costs 75 tokens per session (1,078 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

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is dallay/agentsync's own configuration. It tells Claude Code and Codex how to work on agentsync itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agentsync configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dallay/agentsync. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dallay/agentsync/main/.agents/skills/astrolicious-astro/SKILL.md
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/github.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/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for astro

Your own site · 80×15
<a href="https://agentmods.dev/skills/dallay/agentsync/astrolicious-astro"><img src="https://agentmods.dev/badge/skills/dallay/agentsync/astrolicious-astro.svg" alt="Reviewed on agentmods" width="80" 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 1,078 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 12 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 25
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 26
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 27
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 28
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 29
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 101
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 102
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 103
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 115
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 120
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 125
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 130
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 5.1 $0.00075 $0.01078
Opus 5.5 $0.00030 $0.00431
Sonnet 5.5 $0.00015 $0.00216
Haiku 4.5 $0.00007 $0.00108

Measured 13d ago against content hash 49b909586d53, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 13d 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, 40 lines differ
.agents/skills/astrolicious-astro/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 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>

Read the full file on GitHub · 152 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. 13d ago Changed · +11 lines 49b909586d53
  2. 1mo 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 (70 stars, last pushed today), licensed MIT. It adds 75 tokens to every session and 1,078 once invoked, about $0.0003 per session on Opus 5.5. 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.