Files
ai-for-dummies/.agents/skills/astro-page/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

2.2 KiB

name, description
name description
astro-page Migrate one hand-written HTML page of the ai-for-dummies site to an Astro route without changing its URL, content, or JS budget. Use for any page-level migration task.

Migrating a page to Astro

Snapshot first, migrate second

The snapshot is the only objective evidence that no content was lost.

pnpm run serve &                                  # vanilla site on :4173
node .agents/scripts/snapshot-route.mjs http://localhost:4173/models/ \
  > .agents/snapshots/models.txt

Screenshot the same route at 560 / 800 / 1100 / 1600 px as well.

Migrate

cp .agents/templates/pages/chapter.astro src/pages/models.astro

Then, in order:

  1. Move markup into the layout + components. Reuse existing components before creating new ones.
  2. Move copy into src/content/. Both en and pt, copied literally — never retyped.
  3. Move page CSS into component <style> blocks. Do not port responsive.css wholesale; take what this page needs and prove the rest dead.
  4. Keep every data-* hook. verify.mjs asserts many of them by name (data-phase, data-tree, data-route, data-model-provider, …).
  5. Keep every ARIA attribute and the <title> / <meta name="description">.

The URL must not change

Served from /ai-for-dummies/, so base is set in astro.config.mjs. Never hand-write an internal absolute path; use import.meta.env.BASE_URL.

Trailing slashes matter. /models/ must not become /models.

If the page honours query params (the review desk uses ?author=, ?skill=, ?view=, ?file=, ?compare=, ?render=), they must still work — they are documented in the page footer and shared externally.

Prove it

pnpm run build
node .agents/scripts/snapshot-route.mjs dist/models/index.html > /tmp/after.txt
diff .agents/snapshots/models.txt /tmp/after.txt      # empty, or justify every line
node scripts/audit-ui.mjs
pnpm run verify

Then screenshots at the same four widths, and ../../checklists/before-page.md.

JS budget

A page that shipped zero JS must still ship zero. Check the build output. If your migration added a client:load to a static page, you did it wrong.