Run a batch of GitHub issues through codex exec in isolated git worktrees as parallel autonomous PRs, then manage the review and correction waves until merge. Use when the user gives a list of issue numbers (≥ 2) and asks to "spawn codex" / "dispatch codex" / "have codex work on" / "manage the PRs" / "process feedback" / "get them merged" for those issues, or when the user asks for multi-issue parallel delegation to codex. Not for single-issue wave-driven delegation (use codex-task-waves), single-issue one-shot dispatch (use invoking-codex-exec), or implementation without delegation (use /pr or direct implementation).