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+# Code Generation Style Guidelines
+
+## Formatting and Column Widths
+
+* **Markdown Documents**: Limit Markdown content and prose to a maximum of
+  80 columns per line where reasonable.
+* **Swift Code**: Wrap Swift code to a maximum of 100 columns.
+  * **Long Strings**: Since the project's automatic Swift formatter may not
+    wrap long string literals, wrap them manually using multi-line triple
+    quotes (`"""..."""`).