Problem

The slate-hyperscript fixture suite imported the package by name:

import { jsx } from 'slate-hyperscript'

Under the current Yarn PnP workspace, that resolved through the package's published entry fields to dist/index.js, which does not exist before a build.

So the contributor-facing fixture suite was dead even though the source package itself was fine.

Root Cause

The package had source under src/, but no live root entry for workspace-time resolution.

PnP did exactly what it was told:

• look at the package root
• follow the package entry fields
• fail on missing dist/

Solution

Add a tiny live root entry:

export * from './src'

at packages/slate-hyperscript/index.ts.

That keeps the workspace package importable from source without changing the real authored module surface.

Why This Works

The fixture suite wants package-name imports, not relative ../src cheats.

A root index.ts gives Node+Babel+PnP a source-resolvable fallback after the dead dist/ path fails, so workspace tests can run without forcing a build step just to import the current source.

Prevention

• If a workspace package test imports the package by name, give it a live root source entry or a real source-aware export map.
• Do not assume package tests are green just because the source files look unchanged.
• Dead dist/ resolution under PnP is a packaging seam bug, not a flaky test.