mutation DiscoverBuildSources($worktreeId: ID!, $requestId: ID!) {
  discoverBuildSources(worktreeId: $worktreeId, requestId: $requestId) {
    kind
    relativePath
  }
}

{
  "worktreeId": "id",
  "requestId": "id"
}

{
  "data": {
    "discoverBuildSources": [
      {
        "kind": "PROJECT",
        "relativePath": "string"
      }
    ]
  }
}