[garrity-miepub]

What & why

Pilots mieweb/weighbridge — a CI gate that weighs the npm package on every PR and fails if a limit in weighbridge.json is exceeded. Bloat arrives one "small" dependency at a time; this makes every weight increase a conscious, diffable decision (raise the limit in the same PR) instead of silent drift. Refs #622.

What's weighed (limits ≈ measured 0.11.0 baseline + 10% headroom):

metric	baseline	limit
pack tarball	8.81 MB	9.73 MB
pack unpacked	41.48 MB (1524 files)	45.78 MB
pack section dist/	41.05 MB	45.30 MB
pack section agent/	384.5 KB	439.5 KB
bundle . gzip	777.5 KB	859.4 KB
bundle ./hooks gzip	11.4 KB	12.7 KB
bundle ./utils gzip	29.7 KB	33.2 KB
bundle ./tailwind-preset gzip	9.8 KB	11.2 KB
import ./hooks / ./utils / ./tailwind-preset	3–11 ms	2000 ms

All peerDependencies are externalized, so bundle gzip ≈ the weight this library itself adds to a consumer's app. The main entry has no import-time gate — it's a browser-targeting bundle (HTMLElement is not defined under plain Node).

Changes

• weighbridge.json — scale config (new)
• .github/workflows/weighbridge.yml — build + mieweb/weighbridge@v1 gate on PRs/pushes to main (new; pilot skips the trending/badges extras, which need contents: write)
• scripts/build-datavis.mjs, scripts/build-esheet.mjs — bug found during the pilot: their stdout [build:…] diagnostics corrupt npm pack --json output (parsed from the first [). Diagnostics now go to stderr, where they belong.
• .gitignore — weighbridge local report/baseline outputs

Pilot observations for discussion

• dist/ ships 41 MB unpacked — sourcemaps plus the duplicated ESM+CJS chunk graph are the likely bulk; weighbridge now makes that visible per-PR.
• If the pilot sticks, a follow-up can add the reference workflow's trending extras (weigh-ins branch, sticky PR comment with sparklines, shields badges, release weigh tickets).

Checklist

• pnpm typecheck && pnpm lint && pnpm format && pnpm test pass
• Visual tests pass / baselines updated if rendering changed (pnpm test:visual) — n/a, no rendering change

RTL — see CONTRIBUTING.md → RTL & direction-agnostic styling

• No new physical-direction classes or inline styles — n/a, no component changes
• Directional icons flip with rtl:-scale-x-100 — n/a
• ArrowLeft/ArrowRight handlers are direction-aware — n/a
• New class strings safelisted — n/a, no new class strings
• Direction-sensitive rendering has RTL visual coverage — n/a

[cloudflare-workers-and-pages]

Deploying ui with    Cloudflare Pages

Latest commit:	e1ba04e
Status:	✅  Deploy successful!
Preview URL:	https://ebf89ab4.ui-6d0.pages.dev
Branch Preview URL:	https://pilot-weighbridge.ui-6d0.pages.dev

View logs

[Copilot]

🟢 Approval recommended

No active review issues are reported for the package-weight gate changes.

No open issues 🎉

What changed in this PR

This PR pilots Weighbridge as a package-weight gate, making increases beyond configured limits explicit and reviewable.

Changes:

• Adds limits for package size, selected directory sizes, entry-point bundle sizes, and import times.
• Adds a read-only CI workflow to build and weigh the package on non-draft PRs targeting main and pushes to main.
• Moves build diagnostics to stderr to avoid corrupting npm pack --json output and ignores local Weighbridge reports.

File	Description
weighbridge.json	Defines weight limits and externalizes peer dependencies from bundle measurements.
scripts/​build-esheet.mjs	Sends the build-skip diagnostic to stderr.
scripts/​build-datavis.mjs	Sends build-status diagnostics to stderr.
.gitignore	Excludes local Weighbridge reports and baseline outputs.
.github/​workflows/​weighbridge.yml	Builds the package and runs the Weighbridge gate in CI.

_{Review effort: Balanced}