Sns

This covers AWS SNS for pub/sub messaging, which you'll reach for when one event needs to trigger multiple actions. The skill walks through creating standard and FIFO topics, setting up subscriptions across Lambda, SQS, HTTP endpoints, and email, plus message filtering with attribute-based routing. The fan-out pattern is well explained with a concrete example of broadcasting order events to analytics, fulfillment, and notification queues simultaneously. Filter policies get good coverage with numeric comparisons, prefix matching, and exists checks. What's helpful is the emphasis on pairing SNS with SQS for durability, since SNS itself is push-only and won't hold messages if a subscriber is down. The examples are boto3 heavy with some CLI snippets.

skills.sh installs: 113
GitHub stars: 1.2K
last updated: Jun 8, 2026

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Install

$ npx -y skills add itsmostafa/aws-agent-skills --skill sns --agent claude-code

Installs into .claude/skills of the current project.

Files

AWS SNS

Amazon Simple Notification Service (SNS) is a fully managed pub/sub messaging service for application-to-application (A2A) and application-to-person (A2P) communication.

Core Concepts
Common Patterns
CLI Reference
Best Practices
Troubleshooting
References

Core Concepts

Topics

Named channels for publishing messages. Publishers send to topics, subscribers receive from topics.

Topic Types

Type	Description	Use Case
Standard	Best-effort ordering, at-least-once	Most use cases
FIFO	Strict ordering, exactly-once	Order-sensitive

Subscription Protocols

Protocol	Description
Lambda	Invoke Lambda function
SQS	Send to SQS queue
HTTP/HTTPS	POST to endpoint
Email	Send email
SMS	Send text message
Application	Mobile push notification