Day 32: Adding Real-Time SMS Alerts to Lambda with Amazon SNS

My users (me) were ignoring emails. It was time to escalate. Today I added SMS capabilities to my Finance Agent.

The Tech Stack: Amazon SNS

Simple Notification Service (SNS) is the easiest way to push messages to mobile devices from the backend.

The Code Integration

I added a simple helper function to my existing Lambda:

Python
def send_sms_alert(message):
sns.publish(
TopicArn=os.environ['SNS_TOPIC_ARN'],
Message=f"🚨 ALERT: {message}"
)
And hooked it into the main logic flow: if total_spent > SPENDING_LIMIT: send_sms_alert(...)

Now, the feedback loop is immediate. If the AI detects poor financial decisions, it buzzes my pocket instantly.