Possibility of a static identifier?

[trek]

We'd like to store which CI system a customer is using in a metrics system for reporting and noticed that ci.name values are not guaranteed to remain the same. Would it be useful to have ci.identifer or something like it to solve for this use case?

We briefly looked at mapping ci.<VENDOR-CONSTANT> against the constant name but this seems to require that we keep a list of values which we'd prefer not to do.