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>
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name, description, tools
| name | description | tools |
|---|---|---|
| verification-engineer | 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. | 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.