astro SKILL.md skillA

astro from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ericrisco/rsc-harness/astro@git:20260729.3ecb845

Pins git:20260729.3ecb845 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ericrisco/rsc-harness
Path
skills/astro/SKILL.md
Versions recorded
2
Latest version
git:20260729.3ecb845, committed Jul 29, 2026
First version recorded
Jun 2, 2026
Size
13,352 bytes
Repository stars
236
License
MIT

Use when building a content-driven or marketing site with Astro 6: static-first pages, islands and partial hydration, content collections, server islands, per-route on-demand rendering, deploy adapters, and Astro 5→6 migration. NOT app-router React with server actions and heavy client interactivity (that is `nextjs`).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Astro 6 — static-first sites, islands, content collections

## The prime directive

**Ship zero client JavaScript by default. Hydrate the smallest possible surface, as late as you can
get away with.** An `.astro` component renders to HTML at build time and ships *no* runtime; every
island is a bundle the visitor downloads, parses, and executes. Content and marketing sites win on
TTFB/LCP and Lighthouse, not on React-everywhere. If you find yourself adding `client:load` to make
a page "work," stop — the page already works; you are adding interactivity, and interactivity is the
expensive exception, not the default.

## First: detect the project version

Astro 6.0 is stable ([released 2026-03-10](https://astro.build/blog/astro-6/)); the Astro 5 line is
still production-ready. Do not mix advice across majors — read `package.json` → the `astro` version
before advising. What v6 changes, per the
[upgrade-to-v6 guide](https://docs.astro.build/en/guides/upgrade-to/v6/):

- **Node `22.12.0` or higher is required** (18 and 20 are dropped) — check the actual runtime.
- Content config lives at `src/content.config.ts`. The legacy `src/content/config.ts` path is
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ericrisco/rsc-harness/astro@sha256:806f0556ccd1368b

The line at the top of this page pins the label git:20260729.3ecb845, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_trw5dc7c546czlbs.svg)](https://markdownregistry.com/a/art_trw5dc7c546czlbs)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jun 2, 2026 and Jul 29, 2026, about one every 57 days.

versioncommittedcommitsizeaudit
git:20260729.3ecb845 latest2026-07-29 3ecb845 13,352 BA view · diff
git:20260602.230983f2026-06-02 230983f 14,792 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13352 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_trw5dc7c546czlbs
GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/astro
GET https://markdownregistry.com/api/v1/blob/806f0556ccd1368bd660f78228bc894a58ce4ccbc6896baa92d5d3366d24502f

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in ericrisco/rsc-harness

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