Missing permissions section: I believe all repositories in the php/* organization are configured with read-only GHA permissions by default. Thus this is unable to create the issue. You'll need:

permissions:
  contents: read
  issues: write

see: https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/controlling-permissions-for-github_token

Thanks! Good catch, tested it on my own fork, but that doesn't have that restriction I think :) #237

Quite possible. Organization-owned repositories behave a little differently. You can sync up the permissions here by switching to the second setting:

That would likely be at https://github.com/asgrim/pie/settings/actions

I think this might not work if too many open issues exist. This should not happen in practice, but perhaps you could make this a little smarter by leveraging the filter flags: https://cli.github.com/manual/gh_issue_list

Something: gh issue list --author "github-actions[bot]" might help. Or just create a dedicated label.