Files
ai-for-dummies/.agents/skills/astro-component/SKILL.md
T
Marcos Paulo 48c31dc1b3 build: migrate from npm to pnpm
Ten git worktrees each carried their own 225 MB node_modules (1.1 GB across
five) and paid 11s per `npm ci`. pnpm hardlinks from a shared store: the same
five worktrees cost ~250 MB total, and a fresh install is 4s.

What changed beyond the mechanical rename:

- `overrides` moved to `pnpm-workspace.yaml`. pnpm 11 does not read the `pnpm`
  field in package.json *or* npm's top-level `overrides`, and it fails silently
  — the vite/defu/language-server pins would have quietly stopped applying.
- Build scripts are blocked by default in pnpm; esbuild and sharp are allowed
  explicitly via `allowBuilds` (renamed from `onlyBuiltDependencies` in 11).
- `packageManager` + `engines` pin the toolchain.
- gate.sh rejects a package-lock.json/yarn.lock/bun.lock outright, so an agent
  running `npm install` out of habit fails loudly instead of building a second,
  divergent dependency tree.
- CI bootstraps pnpm with `npm install --global pnpm@11.25.0` rather than
  corepack (unbundled as of Node 25) or pnpm/action-setup (this self-hosted
  act-runner has never run a job; fetching a third-party action is not
  something to discover on the first one).

Two pre-existing CI bugs fixed while in the file:

- the gate installed with `npm install --package-lock=false`, which discarded
  the lockfile the previous session had just fixed.
- the visual-regression step imported `playwright`, which is not a dependency,
  and `visual-regression.mjs` has no compare mode anyway — in CI it overwrote
  its own baselines and passed unconditionally. Removed with a comment; it
  comes back when it can diff.

The `publish` job is now manual (`workflow_dispatch`). During the migration
dist/ holds three HTML files against the live pages branch's ten, so publishing
on every push to main would take the site down to a stub. Restore at task 20.

HANDOVER.md's incident log still says npm where it describes what happened at
the time; that is history, not a missed rename.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-05 04:29:42 +00:00

2.1 KiB

name, description
name description
astro-component Build one Astro component for the ai-for-dummies site from the project templates. Use when creating a primitive, block, or island, or when splitting existing markup into a component.

Building an Astro component

Decide it should exist

Three occurrences, or a name a person says out loud. Two is not enough — see ../../rules/componentization.md.

Then place it:

  • primitives/ — no domain knowledge (Eyebrow, Rule, Callout, CodeBlock)
  • blocks/ — composed, page-agnostic, takes props (RouteCard, PhasePanel)
  • islands/ — interactive, justified, a leaf

Start from a template

cp .agents/templates/components/static-block.astro src/components/blocks/RouteCard.astro
# interactive? use island.astro instead

Templates exist so ten parallel agents produce one house style. Do not start from a blank file.

Write it

---
interface Props {
  number: string;
  title: string;
  summary: string;
  href: string;
}
const { number, title, summary, href } = Astro.props;
---

<article class="card">
  <b>{number}</b>
  <h2>{title}</h2>
  <p>{summary}</p>
  <a href={href}>Open chapter →</a>
</article>

<style>
  .card {
    display: grid;
    gap: 10px;
    padding: 22px;
    background: var(--paper);
  }
  b {
    color: var(--accent);
    font: var(--font-eyebrow);
  }
</style>

Rules that bite most often here:

  • No raw hex. Tokens only. check-tokens.mjs will fail you.
  • No client:* unless it is genuinely interactive, and say why in the PR.
  • Keep the gap:1px over a coloured parent trick where the original used it — it is the house style, not a bug.
  • Preserve every ARIA attribute from the markup you are replacing.

Prove it

  1. Render it at 560 / 800 / 1100 / 1600 px.
  2. Tab to it. Focus ring visible (outline: 3px solid #a7483f).
  3. Diff its rendered text against the markup it replaced.
  4. Run ../../checklists/before-component.md.
  5. pnpm run verify — green, with no assertion deleted.