The following plugins come bundled with graphile-build as defaultPlugins and it's recommended to use them in your schemas.

StandardTypesPlugin

Declares Cursor, UUID, JSON and PageInfo types you can get from build.getTypeByName('Cursor') etc.

NodePlugin

Implements some foundations for the Relay Global Object Identification Specification - adds id (or whatever you set as nodeIdFieldName) to Query and allows you to look up registered nodes by their id.

QueryPlugin

Defines the Query object and hooks GraphQLSchema to add it in. To hook this,

function MyPlugin(builder) {
  builder.hook(
    "GraphQLObjectType",
    (spec, { extend }, { scope: { isRootQuery } }) => {
      if (!isRootQuery) {
        return spec;
      }

      return extend(spec, {
        //... Add new query fields here
      });
    }
  );
}

MutationPlugin

Defines the Mutation object and hooks GraphQLSchema to add it in. Will only be added to the Schema if a hook adds fields to it.

function MyPlugin(builder) {
  builder.hook(
    "GraphQLObjectType",
    (spec, { extend }, { scope: { isRootMutation } }) => {
      if (!isRootMutation) {
        return spec;
      }

      return extend(spec, {
        //... Add new mutation fields here
      });
    }
  );
}

ClientMutationIdDescriptionPlugin

Adds a description to clientMutationId field...

MutationPayloadQueryPlugin

Adds query to mutation payloads so that you can query any data you like after the mutation has resolved.