Show HN: Crnd – Cron daemon built for scripts and AI agents
ysm0622 Wednesday, February 04, 2026Been using cron forever but every modern alternative wants me to click through dashboards or write 50 lines of yaml. So I built crnd (pronounced "crowned") - just a CLI that does what you tell it.
Main thing: no prompts, no interactive wizards. Just commands that work in scripts.
`crnd schedule -n backup -s "0 2 * * *" -- rsync -a ~/docs ~/backup`
Thats it. Jobs live in a toml file that hot-reloads. Daemon runs as a real OS process, not some container abstraction.
Also supports one-time scheduled jobs which cron cant do: `crnd schedule -n reminder -i 5m -- say "stretch break"`
Built it mainly because I'm using AI coding agents and they kept choking on interactive prompts. Now they can just parse --json output and schedule stuff.
No cloud, no docker, no account. Just a single binary.
https://github.com/ysm-dev/crnd
Would love feedback - especially if youre automating things with scripts or agents.