Add Data Dictionary

Generate a data dictionary file alongside a dataset.

When to invoke

• Dataset has no data_dictionary.{md,yaml,json,csv} in its folder.
• User asks to "document the dataset", "create a schema", "add a data dictionary".
• Other skills in this plugin (text-to-numeric, add-iso3166, etc.) need a dictionary to update and find none — offer this skill.

Output format

Default to data_dictionary.md in the dataset's folder. Offer alternatives:

• data_dictionary.yaml for structured/programmatic use.
• data_dictionary.json for schema-validator workflows.
• data_dictionary.csv for spreadsheet editing.

Markdown template