> For AI agents: the complete documentation index is available at https://mfdoctor.kevinbeier.com/llms.txt, the full documentation bundle is available at https://mfdoctor.kevinbeier.com/llms-full.txt.

# `shared/prefix-share-recommended`

- Category: **performance**
- Default severity: **error**

## Issue

Observed `react/...` or `react-dom/...` imports are not covered by the root shared key, so framework subpaths can bypass shared-scope negotiation and create duplicate renderer/runtime modules. Bridge projects use the focused `bridge/react-dom-prefix-missing` contract instead of this rule.

## How to fix it

Add `"react/"` / `"react-dom/"` to `shared`, or add only the exact observed subpaths. Turn `rules["shared/prefix-share-recommended"]` off or baseline the fingerprint when the import boundary is intentional.

Suppress or retarget with `rules["shared/prefix-share-recommended"]` set to `"off"` or a severity, see [Suppressions and allowlists](https://mfdoctor.kevinbeier.com/suppressions.md).

## Sources

- [Official source](https://module-federation.io/configure/shared.html)
- [Official source](https://module-federation.io/guide/bridge/react-bridge)