1/2. No I don't think so (@Matthias De Smet @Simon Pearce @Famke Bäuerle as the author and module maestros) 3. Tag all components, if one changes you need to make sur eit doesn't break the subworkflow

And should you tag additional subworkflows like this:

tag "subworkflows/bam_sort_stats_samtools"

or like this

tag "bam_sort_stats_samtools"

That I don't know - what doe sthe template hve?

I don't think there is a subworkflow in a subworkflow example

tag "subworkflows"
    tag "subworkflows_{{ org_alphabet }}"
    tag "subworkflows/{{ component_name }}"
    // TODO nf-core: Add tags for all modules used within this subworkflow. Example:
    tag "samtools"
    tag "samtools/sort"
    tag "samtools/index"

I would follow the same structure, as presuambly each imported subworkflow woudl go below where you specify the one you're testing

Got a link for this?

No