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viben cron

Manage agent scheduled tasks.

Usage​

viben cron <subcommand> [options]

Subcommands​

SubcommandDescription
listList all scheduled jobs
addAdd a scheduled job
remove <job_id>Remove a scheduled job
enable <job_id>Enable a scheduled job
disable <job_id>Disable a scheduled job
show <job_id>Show job details
run <job_id>Run job immediately (for testing)

Commands​

List Scheduled Jobs​

# List all scheduled jobs
viben cron list
viben cron list --json

Output (human-readable):

Scheduled Jobs:
  daily-greeting     enabled    "0 9 * * *"      next: 2024-01-17 09:00
  weekly-review      enabled    "0 17 * * 5"     next: 2024-01-19 17:00
  hourly-check       disabled   every 3600s      -

Output (JSON):

{
  "success": true,
  "data": {
    "jobs": [
      {
        "id": "daily-greeting",
        "enabled": true,
        "message": "Good morning! What's on my schedule today?",
        "cron": "0 9 * * *",
        "channel": "my-telegram",
        "agent": "main",
        "next_run": "2024-01-17T09:00:00Z",
        "last_run": "2024-01-16T09:00:15Z",
        "last_status": "success"
      }
    ]
  }
}

Add Scheduled Job​

Add a scheduled job using cron expression:

# Using cron expression
viben cron add --name <name> --message "<message>" --cron "<cron-expr>"
viben cron add --name "daily-greeting" --message "Good morning! What's on my schedule today?" --cron "0 9 * * *"
viben cron add --name "weekly-review" --message "Summarize this week's accomplishments" --cron "0 17 * * 5"

# Using interval in seconds
viben cron add --name <name> --message "<message>" --every <seconds>
viben cron add --name "hourly-check" --message "Check for any urgent tasks" --every 3600
viben cron add --name "quick-poll" --message "Any updates?" --every 300

Output:

Added cron job 'daily-greeting'
  Schedule: 0 9 * * * (Every day at 9:00 AM)
  Next run: 2024-01-17 09:00:00

Remove Scheduled Job​

viben cron remove daily-greeting

Output:

Removed cron job 'daily-greeting'

Enable/Disable Scheduled Job​

# Enable
viben cron enable hourly-check

# Disable
viben cron disable hourly-check

Show Job Details​

viben cron show daily-greeting

Output:

Cron Job: daily-greeting
  Status: enabled
  Schedule: 0 9 * * * (Every day at 9:00 AM)
  Message: "Good morning! What's on my schedule today?"
  Channel: my-telegram
  Agent: main

  Last run: 2024-01-16 09:00:15 (success)
  Next run: 2024-01-17 09:00:00

Run Job Immediately​

# For testing
viben cron run daily-greeting

Cron Configuration​

# ~/.viben/cron.yaml
version: 1

jobs:
  daily-greeting:
    enabled: true
    message: "Good morning! What's on my schedule today?"
    cron: "0 9 * * *"        # Every day at 9:00 AM
    channel: my-telegram     # Channel to send response
    agent: main              # Agent to use

  weekly-review:
    enabled: true
    message: "Summarize this week's accomplishments"
    cron: "0 17 * * 5"       # Every Friday at 5:00 PM
    channel: my-telegram
    agent: main

  hourly-check:
    enabled: false
    message: "Check for any urgent tasks"
    every: 3600              # Every 3600 seconds (1 hour)
    channel: null            # CLI only (no channel notification)
    agent: main

Cron Expression Format​

Standard cron format: minute hour day-of-month month day-of-week

FieldValue RangeSpecial Characters
Minute0-59* , - /
Hour0-23* , - /
Day of Month1-31* , - /
Month1-12* , - /
Day of Week0-6 (0=Sunday)* , - /

Examples:

ExpressionDescription
0 9 * * *Every day at 9:00 AM
30 8 * * 1-5Weekdays at 8:30 AM
0 */2 * * *Every 2 hours
0 0 1 * *First day of every month at midnight
0 17 * * 5Every Friday at 5:00 PM

Error Handling​

Job Not Found​

{
  "success": false,
  "error": {
    "code": "JOB_NOT_FOUND",
    "message": "Cron job 'unknown-job' not found"
  }
}

Invalid Cron Expression​

{
  "success": false,
  "error": {
    "code": "INVALID_CRON",
    "message": "Invalid cron expression: '* * *'"
  }
}

Job Already Exists​

{
  "success": false,
  "error": {
    "code": "JOB_EXISTS",
    "message": "Cron job 'daily-greeting' already exists"
  }
}