Files
ai-for-dummies/.agents/skills/astro-page/SKILL.md
T
Marcos Paulo 580293867d refactor: retire the hand-written site
Deletes the pre-Astro pages, scripts, and stylesheets that the migration
replaced, and moves the ones it did not replace out of the way.

Deleted (32 files): app.js, responsive.css, landing.css, rules/app.js,
rules/styles.css, skills/app.js, the ten route index.html files, and the
root hands-on/ copy, which is byte-identical to public/hands-on/ -- the
one the build actually ships.

Moved to legacy/ (12 files): styles.css, full-guide/audit.css,
chapters.css, skills/styles.css, skills-review/styles.css,
skills-review/change-lens.css, and the skills-review/app.js module graph.
These are not dead. The Astro pages import them and the build fails
without them, which the plan had not accounted for. They go to legacy/
rather than src/ because check-tokens.mjs sweeps src, and these files are
full of raw hex and unnamed breakpoints: moving one into src/ should mean
migrating it to tokens in the same change, not adding a scan exclusion.
The prettier, stylelint, and eslint ignore lists that already named these
files at their old paths now name legacy/ instead.

verify.mjs no longer reads app.js. The 102 Portuguese strings were
extracted from its translations.pt object before deletion into
.agents/snapshots/full-guide-pt.json -- a legacy capture, not a snapshot
of the Astro build, so the assertion still compares against an
independent source. The brace-matching helper's assertion is replaced by
one that rejects an empty snapshot entry, without which trimming the
snapshot would make the presence check pass vacuously. Count stays at 84.

audit-ui.mjs reads the ten pages from dist/ and resolves Astro's
base-absolute hrefs against it.

Before deleting anything, rendered-text-diff was run across all ten
routes plus both Portuguese pages: every one at parity, 0 missing and 0
extra. That comparison is not repeatable once the legacy files are gone.
computed-style-diff on /full-guide/ stays at 32 differences, so the moves
are style-neutral.

Docs updated to match: README, AGENTS.md, GATES.md, the architecture
context, the operations guide's lab instructions, and the three skills
that told you to serve the vanilla site.

Publishing is not part of this commit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-06 08:30:27 +00:00

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2.4 KiB
Markdown

---
name: astro-page
description:
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.
The vanilla site was deleted at cutover. To compare against it, check the
pre-cutover tree out into a scratch worktree first:
```bash
git worktree add /tmp/vanilla <pre-cutover-sha>
(cd /tmp/vanilla && python3 -m http.server 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
```bash
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
```bash
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`](../../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.