claude-plugins-official/.github/workflows/close-external-prs.yml

name: Close External PRs

on:
  pull_request_target:
    types: [opened]

jobs:
  check-membership:
    runs-on: ubuntu-latest
    steps:
      - name: Check if author is org member
        uses: actions/github-script@v7
        with:
          script: |
            const org = 'anthropics';
            const author = context.payload.pull_request.user.login;

            try {
              await github.rest.orgs.checkMembershipForUser({
                org: org,
                username: author
              });
              console.log(`${author} is an org member, allowing PR`);
            } catch (e) {
              if (e.status === 404) {
                await github.rest.issues.createComment({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: context.payload.pull_request.number,
                  body: `Thanks for your interest! This repo only accepts contributions from Anthropic team members. If you'd like to submit a plugin to the marketplace, please submit your plugin [here](https://docs.google.com/forms/d/e/1FAIpQLSdeFthxvjOXUjxg1i3KrOOkEPDJtn71XC-KjmQlxNP63xYydg/viewform).`
                });

                await github.rest.pulls.update({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  pull_number: context.payload.pull_request.number,
                  state: 'closed'
                });

                console.log(`Closed PR from external contributor: ${author}`);
              }
            }