Trusted Advisor

No need to install anything - high level AWS account assessment
It does analyze an AWS account and provides recommendations regarding:
- Const optimization
- Performance
- Security
- Fault tolerance
- Service limits
- Operational Excellence
It has 2 tiers:
- Free tier
- Business & Enterprise Support plan:
  - For full set of check
  - Programmatic access using AWS support API
Core checks and recommendations are enabled for all customers
- We can enable weekly email notifications from the console
Full Trusted Advices: available for Business and Enterprise support plans
- Provides the ability to set CloudWatch alarms when limits are reached

Trusted Advisor Automation

We can use EventBridge to detect and react to changes it the status of Trusted Advisor checks
Examples of automation: https://github.com/aws/Trusted-Advisor-Tools
Trusted Advisor has integration with CloudWatch Alarms in order to monitor service limits (for business and enterprise support plans)
Trusted Advisor refresh:
- Can be done manually every 5 minutes
- Can be done programmatically:
  - refresh-trusted-advisor-check
  - describe-trusted-advisor-check-result, ...-statuses, ...-summaries
- In case of Business, Enterprise On-Ramp, or Enterprise Support plan, Trusted Advisor automatically refreshes the checks in our account account on a weekly basis