The most commonly used internal skill in Cursor right now:
/thermo-nuclear-code-quality-review
- removes complexity instead of moving it around
- blocks files over 1000 lines
- flags thin wrappers and “leaked” logic
- rejects merge requests that work but worsen the code structure
Cursor 3 introduces /multitask for parallel sub-agents, improved worktrees for isolated branches, and multi-root workspaces to edit multiple repos in one session.
Oh-my-codex adds a consistent clarification→execution flow, canonical skills, and persistent .omx/ state to make Codex sessions more powerful.
OpenCode adds a native chat UI with terminal switching, diffs, git panel, streaming, tool calls, message queue, and provider switching—IDE next?