> For AI agents: the complete documentation index is available at https://mfdoctor.kevinbeier.com/1.0.0/llms.txt, the full documentation bundle is available at https://mfdoctor.kevinbeier.com/1.0.0/llms-full.txt.

# `config/duplicate-plugin-registration`

- Category: **correctness**
- Default severity: **error**

## Issue

Registering Module Federation more than once on the same compiler breaks the core singleton contract.

## How to fix it

Keep a single Module Federation plugin instance per compiler.

Suppress or retarget with `rules["config/duplicate-plugin-registration"]` set to `"off"` or a severity, see [Suppressions and allowlists](https://mfdoctor.kevinbeier.com/1.0.0/suppressions.md).

## Sources

- [Official source](https://github.com/module-federation/core)
- [Official source](https://module-federation.io/guide/installation.html)