Cron

Use the cron tool to schedule reminders or recurring tasks.

Three Modes

• Reminder - message is sent directly to user

• Task - message is a task description, agent executes and sends result

• One-time - runs once at a specific time, then auto-deletes

Examples

Fixed reminder:

cron(action="add", message="Time to take a break!", every_seconds=1200)

Dynamic task (agent executes each time):

cron(action="add", message="Check HKUDS/vikingbot GitHub stars and report", every_seconds=600)

One-time scheduled task (compute ISO datetime from current time):

cron(action="add", message="Remind me about the meeting", at="<ISO datetime>")

List/remove:

cron(action="list") cron(action="remove", job_id="abc123")

Time Expressions

User says Parameters

every 20 minutes every_seconds: 1200

every hour every_seconds: 3600

every day at 8am cron_expr: "0 8 * * *"

weekdays at 5pm cron_expr: "0 17 * * 1-5"

at a specific time at: ISO datetime string (compute from current time)