Currently, gh pr list --search is:closed --json id,title,url,author returns:

[
  {
    "author": {
      "login": "axelson"
    },
    "id": "PR_kwDOB44BBs4vZTMD",
    "title": "Default fetchDeps to false",
    "url": "https://github.com/elixir-lsp/elixir-ls/pull/633"
  }
]

What could be useful information to add the author object is the author ID (for scripting), their full name, and the information about whether the author is a bot account. Ref. #4045 (comment)

Originally posted by @axelson in #4854