From time to time it makes sense to check if the DC files referred in the Docbuild XML configuration exist in the repos.
To check all DC files in all repositories, use the following command:
docbuild --env-config ENV_CONFIG_FILE check dc-files
To check DC files only for a specific product and docset, use the doctype syntax:
docbuild --env-config ENV_CONFIG_FILE check dc-files 'sles/16.0/en-us'
If a DC file is missing, the tool will report it, allowing you to take corrective action.