There is no need to benchmark if the commit states to skip the ci.
I think it is just a matter of adding

[ -z $(git log -n1 --oneline --grep='[skip ci]' ] && exit 0

At the beginning of call the other repo step.
See here

Some typechecks and exception handling should be added to the YAML loading to provide clear errors and debugging information when the ruby layer reads in malformed files produced by the LLVM passes. See #38 as an example of one case where these improved errors would have helped.