Host: Codex CLI — This skill was designed for Claude Code and adapted for Codex. Cross-reference commands use installed skill names in Codex rather than /octo:* slash commands. Use the active Codex shell and subagent tools. Do not claim a provider, model, or host subagent is available until the current session exposes it. For host tool equivalents, see skills/blocks/codex-host-adapter.md.

Checkpoint Rollback

Safely rollback to a previous checkpoint while preserving lessons learned.

Core principle: List checkpoints → Confirm explicitly → Create safety backup → Restore → Preserve lessons.

Subcommand Detection

Parse the user's request to determine mode: