Version history & restoring agents and skills
Every save keeps the previous version. Browse them in the Studio and restore any one — restoring is itself undoable.
Agents and skills are versioned automatically: every save that actually changes something keeps the previous version (the last 10 for agents, 5 for skills — skill bodies are big). Saves that change nothing don't burn a version.
To browse: in the Studio, select an agent and hit 🕘 (the number shows how many versions exist). Each entry shows when it was saved and its instructions.
Restore loads that version into the editor — nothing is live until you hit save. And because saving snapshots the current version first, restoring is always undoable: the version you just replaced is right there in the history.
This also protects published agents: the marketplace listing pins the version that passed review, so you can iterate privately and republish only when you're happy.