AWS SQS - Danube

The SQS connector answers “is this queue backing up, and where do failed messages go” without reading, sending or deleting a message. Setup and the IAM policy are on the AWS page.

Tools

Tool	What it returns
Test Connection	The AWS account and identity, and whether it may list queues
List Queues	Queue names and URLs, by prefix
Queue Attributes	Visible, in-flight and delayed message counts, the age of the oldest message (CloudWatch `ApproximateAgeOfOldestMessage`), visibility timeout, retention, encryption and redrive policy
Dead Letter Queue Depth	For a queue: its dead-letter queue and how many messages are in it. For a dead-letter queue: its depth and the source queues that feed it

Queues can be named by name, URL or ARN.

Safety

No tool receives a message: ReceiveMessage would hide it from your consumers for the visibility timeout. No tool sends or deletes one either.
Counts are approximate, as SQS reports them.

Example prompts

“How deep is orders and how old is its oldest message?”
“Are messages piling up in the dead-letter queue for orders?”
“Which queues send failed messages to payments-dlq?”