What problem does it solve? Amazon S3 Files deployments can fail in many ways—mount timeouts, access denied errors, files not syncing to S3, or unexpected latency—and finding the root cause requires checking security groups, IAM roles, KMS keys, and VPC DNS settings. This Skill provides a structured diagnostic workflow that classifies symptoms into categories and walks through the exact AWS CLI commands needed to identify and fix each issue. ## Core Features & Use Cases - Symptom-Based Classification: Maps common symptoms (mount failures, access denied, lost+found files, slow reads) to eight diagnostic categories covering client installation, networking, IAM, synchronization, conflicts, performance, encryption, and DNS. - Guided Remediation: Provides concrete AWS CLI commands for each category, such as verifying security group rules on port 2049, checking file system status messages, and inspecting sync errors via extended attributes. - Use Case: An engineer mounts an S3 Files file system and gets a connection timeout. The Skill identifies this as a security group issue, verifies the mount target exists in the instance's AZ, and provides the exact authorize-security-group-ingress command to allow TCP 2049 traffic. ## Quick Start Ask the assistant to troubleshoot why your S3 Files file system is not mounting or why files are not appearing in your S3 bucket.
