Problem scenario
You run an "aws ssm" command. It returns that a given package has been installed. You know the package is not really installed. What is the reason for the discrepancy?
Solution
A previous "aws ssm" command may have run successfully. But later someone may have deleted specific files without using "aws ssm". This is a limitation of "aws ssm". It can provide false positives or negatives if engineers/administrators bypass aws ssm for their tasks.