This is a Claude Code plugin that enables scheduling recurring and one-time tasks using native OS schedulers (launchd on macOS, crontab on Linux, Task Scheduler on Windows). Users describe tasks in natural language (e.g., 'every weekday at 9am review yesterday's code'), and the plugin converts that to cron expressions, registers the task with the OS scheduler, and executes `claude -p "prompt"` at the scheduled time. It supports autonomous execution with `--dangerously-skip-permissions`, git worktree isolation for tasks that modify code (creates a branch, runs Claude, commits and pushes changes), and provides commands to list, remove, run, and view logs of scheduled tasks. The architecture is modular: platform-specific scheduler implementations inherit from a base class, cron parsing and humanization are separate utilities, and execution history is stored as JSONL files. The codebase demonstrates strong security awareness with shell escaping, input validation via Zod schemas, and careful handling of user-provided values in generated shell scripts.