https://github.com/graphql/graphql-js/blob/master/.github/CONTRIBUTING.md#contributor-license-agreement-cla says:
In order to accept your pull request, we need you to submit a CLA. You only need to do this once to work on any of Facebook's open source projects.
Complete your CLA here: https://code.facebook.com/cla
Other repos in this org sign the Linux Foundation CLA instead (e.g. graphql/graphql-spec#746 (comment))
Any plans for graphql-js to switch over to the GraphQL Foundation / Linux Foundation CLA?
cc @brianwarner @leebyron