Create, explain, and modify wf workflow YAML, including shell-backed list_cmd parameters and practical workflow patterns.
Use this skill when the user wants to create, edit, explain, or troubleshoot wf workflows.
This skill is especially important for type: list parameters, because list behavior does not come from the {{param}} command placeholder itself. It comes from persisted arg metadata such as list_cmd, list_delimiter, list_field_index, and list_skip_header.
A wf workflow has two layers:
Example: