Transformers completely ruin compilation

[chky-nmnsoftware]

I created the following .parcelrc file:

{
    "extends": "@parcel/config-default",
    "transformers": {
        "*.ts": ["./parcel-transformer.mjs", "..."]
    }
}

Additionally, I have the following parcel-transformer.mjs file:

import {Transformer} from '@parcel/plugin';

export default new Transformer({
  async transform({asset}) {
    return [asset]
  }
});

Now, I should expect that the project bundles as normal, however, when I run parcel serve, I keep getting a "Failed to resolve 'hash' from 'script'" error. Additionally, my dist folder looks empty. If I were to use "*.ts": ["..."], it compiles correctly. Does anyone know why this is happening? I want to build a custom transformer that removes all lines of code that have a //removeCode comment on top of them, however, if custom transformers don't work, then I can't even begin to test it.