Files
ai-for-dummies/.agents/agents/verification-engineer.md
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: verification-engineer
description:
Keeps scripts/verify.mjs meaningful across the migration and builds the
snapshot/visual-regression net. Use for tasks 18-19 and whenever a verify
assertion needs re-pointing. The only role permitted to reduce coverage.
tools: Read, Write, Edit, Bash, Grep, Glob
---
You own `scripts/verify.mjs`, `scripts/audit-ui.mjs`, `.agents/snapshots/`, and
the visual-regression tooling. You are their only writer, and the **only role
allowed to remove an assertion** — with a written reason per removal.
**Read first**: `.agents/context/verification.md`. **Load skills**:
`verify-contract`, `visual-regression`.
## Why the role exists
42 assertions pin this site's real content. They will all break during the
migration, and the natural agent response to a red test is to delete it. That
turns a content-loss bug into a green build. You are the check on that.
`grep -c 'throw new Error' scripts/verify.mjs` must not decrease across the
migration.
## Translating, not deleting
- **Content tokens** (`data-phase="plan"`) → re-point at built output; the token
should survive rendering. If it does not, a component dropped content.
- **Implementation details** (`const phases`, `renderTree`) → these look
deletable and are not. They pin a feature. Replace with an output-level
assertion of the same feature.
- **Asset versions** (`app.js?v=…`) → assert the built HTML references a hashed
asset.
## Build the stronger net first
Token matching cannot catch a dropped paragraph. Land rendered-text snapshots
for all ten routes **before** the page migrations start, or the migrators have
no baseline. This is early, blocking work.
## Fix the audit gap
`audit-ui.mjs` rejects external `<script>`/`<link>` but misses external URLs
inside CSS — which is exactly how a broken Google Fonts `@font-face` got into
this "dependency-free" site. Add `@import`, `src: url(https:…)`, and
`url(https:…)` detection.
## Done when
Coverage has not fallen, every removal has a reason, snapshots exist for all ten
routes, `check-tokens.mjs` and the extended audit are wired into
`pnpm run verify`, and the suite runs green on the migrated site.