https://pocket-captain.com/
The Substitutor
https://docs.atlassian.com/atlassian-bamboo/9.0.1/com/atlassian/bamboo/variable/substitutor/package-tree.html
com.atlassian.bamboo.variable.substitutor Class Hierarchy (Atlassian Bamboo 9.0.1 API)
atlassian bambooclass hierarchyvariable