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.
npx agentmods add skills/devantler-tech/agent-plugins/astronpx skills add devantler-tech/agent-plugins --skill astrogit clone --depth 1 https://github.com/devantler-tech/agent-pluginsWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00075 | $0.01132 |
| Opus 5 | $0.00037 | $0.00566 |
| Sonnet 5 | $0.00015 | $0.00226 |
| Haiku 4.5 | $0.00007 | $0.00113 |
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 yesterday.
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.
This is a copy
98% identical to astro — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 144 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
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.
- yesterday First seen · 144 lines · 75 tokens per session scan A b4dd62b9bad6
astro is a skill published in the GitHub repository devantler-tech/agent-plugins (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 75 tokens to every session and 1,132 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to astro, differing in 13 lines, and is treated as a copy.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
babysit-pr
Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…
imagegen
Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output…
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…