astro-knowledge-patch

astro-knowledge-patch is a skill for Claude Code from Nevaberry/nevaberry-plugins. It costs 8 tokens per session (2,105 once invoked), scanned A, original, MIT.

A reference guide for Astro, a framework for building websites and web applications. It covers upgrades, routing, content, Markdown, images, security, hosting adapters, configuration, and Starlight documentation sites.

In plain words
What is it for?
Use it to check Astro behavior for rendering, caching, content loaders, Markdown and MDX, images, environment variables, deployment adapters, or project tooling.
Why use it?
It helps prevent outdated advice from causing problems when creating, upgrading, or debugging an Astro project.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the knowledge-patch plugin — 57 skills, 1 hook shipped together

Good fit Use it to check Astro behavior for rendering, caching, content loaders, Markdown and MDX, images, environment variables, deployment adapters, or project tooling.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nevaberry/nevaberry-plugins/astro-knowledge-patch
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.

Any agent
npx skills add Nevaberry/nevaberry-plugins --skill astro-knowledge-patch
Clone the repo
git clone --depth 1 https://github.com/Nevaberry/nevaberry-plugins

Made for: Claude Code.

Or install knowledge-patch, the plugin that ships this one along with the rest of its 57 skills, 1 hook.

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-knowledge-patch

README.md
[![agentmods](https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch/github.svg)](https://agentmods.dev/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch)
Your own site
<a href="https://agentmods.dev/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch"><img src="https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch/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-knowledge-patch

Your own site · 80×15
<a href="https://agentmods.dev/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch"><img src="https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/astro-knowledge-patch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,105 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
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 $0.00008 $0.02105
Opus 5.5 $0.00003 $0.00842
Sonnet 5.5 $0.00002 $0.00421
Haiku 4.5 $0.00001 $0.00211

Measured 1mo ago against content hash 864bfe4b8696, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

astro-knowledge-patch scanned grade A with 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

fetch(request: Request) {
plugins/knowledge-patch/patches-claude/astro-knowledge-patch/SKILL.md · 243 lines

How it starts

The opening of the file, as written. The whole thing — 243 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Astro Knowledge Patch

Use this skill before creating, upgrading, or debugging an Astro project. Check the breaking changes first, then open the reference matching the task.

Index

Reference Topics
Upgrading and breaking changes Runtime and dependency baselines, promoted flags, changed defaults, removed APIs
Routing, rendering, and caching Server islands, redirects, endpoints, prerendering, advanced routing, response caching
Content, data, and Actions Content loaders, live collections, generated schemas, Astro DB, Actions, incremental content
Markdown and MDX TOML, remote images, highlighting, heading IDs, SmartyPants, unified and Sätteri
Images, fonts, and styles Responsive images, Sharp, SVG components and optimization, Fonts API
Security, sessions, and environment Typed environment variables, CSP, sessions, cookies
Adapters and integrations Netlify, Node, Cloudflare, Vercel, React, Svelte, sitemap, Adapter API
Configuration, tooling, and APIs Typed config, programmatic build, host allowlists, logging, background servers
Starlight Sidebar generation, locale fallback links, CJK spacing

Breaking changes first

Astro 7 project checks

  • Markdown and MDX use Sätteri by default with GFM enabled. Select unified() explicitly if the project depends on remark or rehype plugins.
  • Queued rendering is stable and automatic. Remove experimental.queuedRendering.
  • Move cache, routeRules, and logger out of experimental.
  • Replace --experimentalJson with --json.
  • Put a custom standard-pipeline handler at src/fetch.ts; without that file, Astro uses the normal request pipeline.

Read the full file on GitHub · 243 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. 1mo ago First seen · 243 lines · 8 tokens per session scan A 864bfe4b8696

Subscribe to this mod's changes

astro-knowledge-patch is a skill published in the GitHub repository Nevaberry/nevaberry-plugins (23 stars, last pushed 1mo ago), licensed MIT. It adds 8 tokens to every session and 2,105 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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