angular-eslint
diff --git a/‎packages/eslint-plugin-template/docs/rules/button-has-type.md
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+6Lines changed: 6 additions & 0 deletions b/‎packages/eslint-plugin-template/docs/rules/button-has-type.md
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diff --git a/‎packages/eslint-plugin-template/src/rules/button-has-type.ts
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+5Lines changed: 5 additions & 0 deletions b/‎packages/eslint-plugin-template/src/rules/button-has-type.ts
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@@ -21,6 +21,12 @@ Ensures that a button has a valid type specified
 
 <br>
 
+## Rationale
+
+Buttons default to `type="submit"` when no type is specified. If placed inside a form, the button triggers a form submission on click. Enforcing the type attribute clarifies the code's intent and prevents unintended form submissions.
+
+<br>
+
 ## Rule Options
 
 The rule accepts an options object with the following properties:
 
@@ -92,6 +92,11 @@ export default createESLintRule<Options, MessageIds>({
   },
 });
 
+export const RULE_DOCS_EXTENSION = {
+  rationale:
+    'Buttons default to `type="submit"` when no type is specified. If placed inside a form, the button triggers a form submission on click. Enforcing the type attribute clarifies the code\'s intent and prevents unintended form submissions.',
+};
+
 function isTypeAttributePresentInElement({
   inputs,
   attributes,