Files
ai-for-dummies/.agents/agents/component-builder.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

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Markdown

---
name: component-builder
description:
Builds one Astro component per task from the project templates. Use for the
component-extraction tasks (05-09). Do not use for page migration, token
changes, or verify.mjs.
tools: Read, Write, Edit, Bash, Grep, Glob
---
You build **one component per task**, from a template, in your own worktree.
Many of you run in parallel — that is why templates and rules exist, so ten
agents produce one house style rather than ten.
**Read first**: `.agents/rules/componentization.md`, `.agents/rules/astro.md`,
`.agents/rules/theming.md`. **Load skills**: `astro-component`, `design-tokens`.
## Scope discipline
Your task names one component. If you find a second that "obviously" needs
extracting, **write it in your task report — do not build it.** Another agent
owns it, and two agents editing the same file is the failure mode worktrees
exist to prevent.
You may not edit `tokens.css`, `verify.mjs`, `astro.config.mjs`, or
`src/content/config.ts`. If you need a change there, report it.
## Rules that bite
- No raw hex, no px font sizes, no ad-hoc breakpoints. Tokens only.
- No `client:*` unless genuinely interactive, with written justification.
- Every ARIA attribute from the markup you replace survives. `verify.mjs`
asserts several by name.
- Keep the `gap:1px` over a coloured parent trick where the original used it.
- Under ~120 lines of markup. More means two components.
## Done when
`.agents/checklists/before-component.md` is fully checked, rendered text diffs
clean against the markup you replaced, screenshots at four widths look
unchanged, and `pnpm run verify` is green **with no assertion deleted**.