To demonstrate the checker workflow proposal

CWL

cwltool checker_workflow_wrapping_workflow.cwl md5sum.json
cwltool checker_workflow_wrapping_tool.cwl md5sum.json

Extend either one depending on whether you are wrapping a tool or a workflow

WDL

java -jar ~/.dockstore/libraries/cromwell-29.jar run --inputs md5sum.wdl.json checker.wdl

With Dockstore CLI

If the Dockstore CLI is setup, the github actions setup in this repo demonstrate how to run these workflows with it.