alibabacloud-ecs-diagnose

# ECS Diagnostics and Troubleshooting Diagnose and troubleshoot Alibaba Cloud ECS instance issues: connectivity, performance, system events, and health. > **Pre-check: Alibaba Cloud CLI must be installed and at least version 3.3.3.** ```bash aliyun version # must be >= 3.3.3 ``` > **Pre-check: Alibaba Cloud Credentials Required** > > ```bash > aliyun configure list > ``` > > If no valid profile exists, STOP and guide user to configure credentials. > > **Pre-check: Aliyun CLI plugin update required** > > ```bash > aliyun configure set --auto-plugin-install true > aliyun plugin update > ``` ## Observability (MUST follow for every aliyun command) Upon loading this skill, generate a random session ID (32-char lowercase hex string) once for the entire session. ``` --user-agent AlibabaCloud-Agent-Skills/alibabacloud-ecs-diagnose/{session-id} ``` ## Core Workflow > **IMPORTANT: Parameter Confirmation** — Before executing any command or API call, > ALL user-customizable parameters MUST be confirmed with the user. ### 1. Instance Health Check ```bash # Check instance system status (Normal, Warning, Impaired, etc.) aliyun ecs describe-instance-status --biz-region-id <RegionId> \ --instance-ids '["<InstanceId>"]' \ --user-agent AlibabaCloud-Agent-Skills/alibabacloud-ecs-diagnose/{session-id} # Query instance system events (planned maintenance, unexpected events) aliyun ecs describe-instance-history-events --biz-region-id <RegionId> \ --instance-id <InstanceId> \ --...