Total number of breaking commits
Number of dependencies
Average age of issue
Frequency of issues fixed
Average response time of issues fixed to bugs filed
Frequency of releases
Number of dependent modules
Number of total downloads
Frequency of downloads
Frequency of commits
Number of contributors
Is well documented.
A markdown based README can be parsed to find headers corresponding to the
man pages spec or else if there is no pattern match, a set of basic rules.
Number of Major releases
1.0 for node modules represents a significant milestone in stability.
Number of npm stars
When someone runs
npm star <module-name> they are making a public statement about their appreciation for it.
Number of github stars
When someone stars a github repo they are making a public statement about their interest in it.