cron-dispatchlisted

# Cron Dispatch Use this skill when a script must run unattended on a schedule and the same pattern has to work on both a Windows dev box and a Linux server. It gives copy-paste setup for Windows Task Scheduler and Linux cron, plus logging and an overlap guard so a slow run never stacks on top of the next tick. ## When to invoke - User says: "run this nightly" / "set up a cron job" / "schedule a script" / "windows task scheduler" - Code in the conversation uses: a standalone script (Python, Node, shell) that should fire on a timer instead of by hand. ## When NOT to invoke - The work belongs inside an existing always-on service or event loop, not an OS scheduler. - The user wants a managed cloud scheduler (GitHub Actions cron, cloud functions) rather than a local machine. ## Concrete example User input: ```text Run my scraper.py every day at 9am on Windows now, and give me the Linux cron line for the server later. ``` Output: ```powershell # Windows: register a daily 09:00 task (run from the repo root) powershell -ExecutionPolicy Bypass -File assets/setup_task.ps1 ` -TaskName "scraper-daily" ` -Command "python" ` -Arguments "E:\proj\scraper.py" ` -Time "09:00" ``` ```bash # Linux: same job, 09:00 daily, logged, no overlap 0 9 * * * cd /srv/proj && flock -n /tmp/scraper.lock python scraper.py >> /srv/proj/cron.log 2>&1 ``` ## Pattern to apply 1. Pick one schedule expression and translate it to both Task Scheduler triggers and a 5-field cron line. 2. Always