diff --git a/.changeset/cyan-ducks-teach.md b/.changeset/cyan-ducks-teach.md
new file mode 100644
index 000000000000..e33663e61da9
--- /dev/null
+++ b/.changeset/cyan-ducks-teach.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: make messages more consistent
diff --git a/packages/svelte/messages/compile-errors/template.md b/packages/svelte/messages/compile-errors/template.md
index 5c7b620125fa..df80eadbe437 100644
--- a/packages/svelte/messages/compile-errors/template.md
+++ b/packages/svelte/messages/compile-errors/template.md
@@ -174,7 +174,7 @@
 
 ## mixed_event_handler_syntaxes
 
-> Mixing old (on:%name%) and new syntaxes for event handling is not allowed. Use only the on%name% syntax.
+> Mixing old (on:%name%) and new syntaxes for event handling is not allowed. Use only the on%name% syntax
 
 ## node_invalid_placement
 
@@ -230,7 +230,7 @@
 
 ## slot_snippet_conflict
 
-> Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely.
+> Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely
 
 ## snippet_conflict
 
diff --git a/packages/svelte/messages/compile-warnings/a11y.md b/packages/svelte/messages/compile-warnings/a11y.md
index 26023d28f356..490a01569399 100644
--- a/packages/svelte/messages/compile-warnings/a11y.md
+++ b/packages/svelte/messages/compile-warnings/a11y.md
@@ -20,7 +20,7 @@
 
 ## a11y_click_events_have_key_events
 
-> Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type="button">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.
+> Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type="button">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details
 
 ## a11y_distracting_elements
 
@@ -40,7 +40,7 @@
 
 ## a11y_img_redundant_alt
 
-> Screenreaders already announce `<img>` elements as an image.
+> Screenreaders already announce `<img>` elements as an image
 
 ## a11y_incorrect_aria_attribute_type
 
@@ -76,7 +76,7 @@
 
 ## a11y_interactive_supports_focus
 
-> Elements with the '%role%' interactive role must have a tabindex value.
+> Elements with the '%role%' interactive role must have a tabindex value
 
 ## a11y_invalid_attribute
 
@@ -84,7 +84,7 @@
 
 ## a11y_label_has_associated_control
 
-> A form label must be associated with a control.
+> A form label must be associated with a control
 
 ## a11y_media_has_caption
 
@@ -120,7 +120,7 @@
 
 ## a11y_no_noninteractive_element_interactions
 
-> Non-interactive element `<%element%>` should not be assigned mouse or keyboard event listeners.
+> Non-interactive element `<%element%>` should not be assigned mouse or keyboard event listeners
 
 ## a11y_no_noninteractive_element_to_interactive_role
 
diff --git a/packages/svelte/messages/compile-warnings/template.md b/packages/svelte/messages/compile-warnings/template.md
index 9b27959cb2d2..5cdc801af56c 100644
--- a/packages/svelte/messages/compile-warnings/template.md
+++ b/packages/svelte/messages/compile-warnings/template.md
@@ -32,8 +32,8 @@
 
 ## event_directive_deprecated
 
-> Using `on:%name%` to listen to the %name% event is deprecated. Use the event attribute `on%name%` instead.
+> Using `on:%name%` to listen to the %name% event is deprecated. Use the event attribute `on%name%` instead
 
 ## slot_element_deprecated
 
-> Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead.
+> Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead
diff --git a/packages/svelte/src/compiler/errors.js b/packages/svelte/src/compiler/errors.js
index 8a2832df1bd6..c7beb7173769 100644
--- a/packages/svelte/src/compiler/errors.js
+++ b/packages/svelte/src/compiler/errors.js
@@ -928,13 +928,13 @@ export function let_directive_invalid_placement(node) {
 }
 
 /**
- * Mixing old (on:%name%) and new syntaxes for event handling is not allowed. Use only the on%name% syntax.
+ * Mixing old (on:%name%) and new syntaxes for event handling is not allowed. Use only the on%name% syntax
  * @param {null | number | NodeLike} node
  * @param {string} name
  * @returns {never}
  */
 export function mixed_event_handler_syntaxes(node, name) {
-	e(node, "mixed_event_handler_syntaxes", `Mixing old (on:${name}) and new syntaxes for event handling is not allowed. Use only the on${name} syntax.`);
+	e(node, "mixed_event_handler_syntaxes", `Mixing old (on:${name}) and new syntaxes for event handling is not allowed. Use only the on${name} syntax`);
 }
 
 /**
@@ -1059,12 +1059,12 @@ export function slot_element_invalid_name_default(node) {
 }
 
 /**
- * Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely.
+ * Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely
  * @param {null | number | NodeLike} node
  * @returns {never}
  */
 export function slot_snippet_conflict(node) {
-	e(node, "slot_snippet_conflict", "Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely.");
+	e(node, "slot_snippet_conflict", "Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely");
 }
 
 /**
diff --git a/packages/svelte/src/compiler/warnings.js b/packages/svelte/src/compiler/warnings.js
index 30523911658e..530f23fad9f0 100644
--- a/packages/svelte/src/compiler/warnings.js
+++ b/packages/svelte/src/compiler/warnings.js
@@ -137,11 +137,11 @@ export function a11y_autofocus(node) {
 }
 
 /**
- * Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type="button">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.
+ * Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type="button">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details
  * @param {null | NodeLike} node
  */
 export function a11y_click_events_have_key_events(node) {
-	w(node, "a11y_click_events_have_key_events", "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.");
+	w(node, "a11y_click_events_have_key_events", "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details");
 }
 
 /**
@@ -179,11 +179,11 @@ export function a11y_hidden(node, name) {
 }
 
 /**
- * Screenreaders already announce `<img>` elements as an image.
+ * Screenreaders already announce `<img>` elements as an image
  * @param {null | NodeLike} node
  */
 export function a11y_img_redundant_alt(node) {
-	w(node, "a11y_img_redundant_alt", "Screenreaders already announce `<img>` elements as an image.");
+	w(node, "a11y_img_redundant_alt", "Screenreaders already announce `<img>` elements as an image");
 }
 
 /**
@@ -262,12 +262,12 @@ export function a11y_incorrect_aria_attribute_type_tristate(node, attribute) {
 }
 
 /**
- * Elements with the '%role%' interactive role must have a tabindex value.
+ * Elements with the '%role%' interactive role must have a tabindex value
  * @param {null | NodeLike} node
  * @param {string} role
  */
 export function a11y_interactive_supports_focus(node, role) {
-	w(node, "a11y_interactive_supports_focus", `Elements with the '${role}' interactive role must have a tabindex value.`);
+	w(node, "a11y_interactive_supports_focus", `Elements with the '${role}' interactive role must have a tabindex value`);
 }
 
 /**
@@ -281,11 +281,11 @@ export function a11y_invalid_attribute(node, href_value, href_attribute) {
 }
 
 /**
- * A form label must be associated with a control.
+ * A form label must be associated with a control
  * @param {null | NodeLike} node
  */
 export function a11y_label_has_associated_control(node) {
-	w(node, "a11y_label_has_associated_control", "A form label must be associated with a control.");
+	w(node, "a11y_label_has_associated_control", "A form label must be associated with a control");
 }
 
 /**
@@ -363,12 +363,12 @@ export function a11y_no_interactive_element_to_noninteractive_role(node, element
 }
 
 /**
- * Non-interactive element `<%element%>` should not be assigned mouse or keyboard event listeners.
+ * Non-interactive element `<%element%>` should not be assigned mouse or keyboard event listeners
  * @param {null | NodeLike} node
  * @param {string} element
  */
 export function a11y_no_noninteractive_element_interactions(node, element) {
-	w(node, "a11y_no_noninteractive_element_interactions", `Non-interactive element \`<${element}>\` should not be assigned mouse or keyboard event listeners.`);
+	w(node, "a11y_no_noninteractive_element_interactions", `Non-interactive element \`<${element}>\` should not be assigned mouse or keyboard event listeners`);
 }
 
 /**
@@ -698,18 +698,18 @@ export function element_invalid_self_closing_tag(node, name) {
 }
 
 /**
- * Using `on:%name%` to listen to the %name% event is deprecated. Use the event attribute `on%name%` instead.
+ * Using `on:%name%` to listen to the %name% event is deprecated. Use the event attribute `on%name%` instead
  * @param {null | NodeLike} node
  * @param {string} name
  */
 export function event_directive_deprecated(node, name) {
-	w(node, "event_directive_deprecated", `Using \`on:${name}\` to listen to the ${name} event is deprecated. Use the event attribute \`on${name}\` instead.`);
+	w(node, "event_directive_deprecated", `Using \`on:${name}\` to listen to the ${name} event is deprecated. Use the event attribute \`on${name}\` instead`);
 }
 
 /**
- * Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead.
+ * Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead
  * @param {null | NodeLike} node
  */
 export function slot_element_deprecated(node) {
-	w(node, "slot_element_deprecated", "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead.");
+	w(node, "slot_element_deprecated", "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead");
 }
\ No newline at end of file
diff --git a/packages/svelte/tests/compiler-errors/samples/slot-conflicting-with-render-tag/_config.js b/packages/svelte/tests/compiler-errors/samples/slot-conflicting-with-render-tag/_config.js
index c46640e6638e..f327e4547d7e 100644
--- a/packages/svelte/tests/compiler-errors/samples/slot-conflicting-with-render-tag/_config.js
+++ b/packages/svelte/tests/compiler-errors/samples/slot-conflicting-with-render-tag/_config.js
@@ -4,7 +4,7 @@ export default test({
 	error: {
 		code: 'slot_snippet_conflict',
 		message:
-			'Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely.',
+			'Cannot use `<slot>` syntax and `{@render ...}` tags in the same component. Migrate towards `{@render ...}` tags completely',
 		position: [71, 84]
 	}
 });
diff --git a/packages/svelte/tests/validator/samples/a11y-click-events-have-key-events/warnings.json b/packages/svelte/tests/validator/samples/a11y-click-events-have-key-events/warnings.json
index ec348e03eac0..a1628842fb8c 100644
--- a/packages/svelte/tests/validator/samples/a11y-click-events-have-key-events/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-click-events-have-key-events/warnings.json
@@ -1,7 +1,7 @@
 [
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 13,
 			"column": 0
@@ -13,7 +13,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 15,
 			"column": 0
@@ -25,7 +25,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 18,
 			"column": 0
@@ -37,7 +37,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 20,
 			"column": 0
@@ -49,7 +49,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 22,
 			"column": 0
@@ -61,7 +61,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 24,
 			"column": 0
@@ -73,7 +73,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 26,
 			"column": 0
@@ -85,7 +85,7 @@
 	},
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"line": 28,
 			"column": 0
diff --git a/packages/svelte/tests/validator/samples/a11y-img-redundant-alt/warnings.json b/packages/svelte/tests/validator/samples/a11y-img-redundant-alt/warnings.json
index acba9e73187b..32e93ec13294 100644
--- a/packages/svelte/tests/validator/samples/a11y-img-redundant-alt/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-img-redundant-alt/warnings.json
@@ -1,7 +1,7 @@
 [
 	{
 		"code": "a11y_img_redundant_alt",
-		"message": "Screenreaders already announce `<img>` elements as an image.",
+		"message": "Screenreaders already announce `<img>` elements as an image",
 		"end": {
 			"column": 49,
 			"line": 3
@@ -13,7 +13,7 @@
 	},
 	{
 		"code": "a11y_img_redundant_alt",
-		"message": "Screenreaders already announce `<img>` elements as an image.",
+		"message": "Screenreaders already announce `<img>` elements as an image",
 		"end": {
 			"column": 45,
 			"line": 4
@@ -25,7 +25,7 @@
 	},
 	{
 		"code": "a11y_img_redundant_alt",
-		"message": "Screenreaders already announce `<img>` elements as an image.",
+		"message": "Screenreaders already announce `<img>` elements as an image",
 		"end": {
 			"column": 52,
 			"line": 5
diff --git a/packages/svelte/tests/validator/samples/a11y-interactive-supports-focus/warnings.json b/packages/svelte/tests/validator/samples/a11y-interactive-supports-focus/warnings.json
index 7b4eaa049a0d..7f69057fae75 100644
--- a/packages/svelte/tests/validator/samples/a11y-interactive-supports-focus/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-interactive-supports-focus/warnings.json
@@ -5,7 +5,7 @@
 			"column": 48,
 			"line": 11
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 11
@@ -17,7 +17,7 @@
 			"column": 51,
 			"line": 12
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 12
@@ -29,7 +29,7 @@
 			"column": 45,
 			"line": 13
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 13
@@ -41,7 +41,7 @@
 			"column": 72,
 			"line": 14
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 14
@@ -53,7 +53,7 @@
 			"column": 51,
 			"line": 15
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 15
@@ -65,7 +65,7 @@
 			"column": 52,
 			"line": 16
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 16
@@ -77,7 +77,7 @@
 			"column": 44,
 			"line": 17
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 17
@@ -89,7 +89,7 @@
 			"column": 51,
 			"line": 18
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 18
@@ -101,7 +101,7 @@
 			"column": 49,
 			"line": 19
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 19
@@ -113,7 +113,7 @@
 			"column": 52,
 			"line": 20
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 20
@@ -125,7 +125,7 @@
 			"column": 49,
 			"line": 21
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 21
@@ -137,7 +137,7 @@
 			"column": 52,
 			"line": 22
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 22
@@ -149,7 +149,7 @@
 			"column": 49,
 			"line": 23
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 23
@@ -161,7 +161,7 @@
 			"column": 48,
 			"line": 24
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 24
@@ -173,7 +173,7 @@
 			"column": 49,
 			"line": 25
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 25
@@ -185,7 +185,7 @@
 			"column": 54,
 			"line": 26
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 26
@@ -197,7 +197,7 @@
 			"column": 50,
 			"line": 27
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 27
@@ -209,7 +209,7 @@
 			"column": 53,
 			"line": 28
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 28
@@ -221,7 +221,7 @@
 			"column": 48,
 			"line": 29
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 29
@@ -245,7 +245,7 @@
 			"column": 53,
 			"line": 30
 		},
-		"message": "Elements with the 'menuitem' interactive role must have a tabindex value.",
+		"message": "Elements with the 'menuitem' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 30
@@ -269,7 +269,7 @@
 			"column": 47,
 			"line": 31
 		},
-		"message": "Elements with the 'button' interactive role must have a tabindex value.",
+		"message": "Elements with the 'button' interactive role must have a tabindex value",
 		"start": {
 			"column": 0,
 			"line": 31
diff --git a/packages/svelte/tests/validator/samples/a11y-label-has-associated-control/warnings.json b/packages/svelte/tests/validator/samples/a11y-label-has-associated-control/warnings.json
index 2ac34c4beead..44adfaaff48c 100644
--- a/packages/svelte/tests/validator/samples/a11y-label-has-associated-control/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-label-has-associated-control/warnings.json
@@ -5,7 +5,7 @@
 			"column": 16,
 			"line": 5
 		},
-		"message": "A form label must be associated with a control.",
+		"message": "A form label must be associated with a control",
 		"start": {
 			"column": 0,
 			"line": 5
@@ -17,7 +17,7 @@
 			"column": 30,
 			"line": 10
 		},
-		"message": "A form label must be associated with a control.",
+		"message": "A form label must be associated with a control",
 		"start": {
 			"column": 0,
 			"line": 10
diff --git a/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-interactions/warnings.json b/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-interactions/warnings.json
index e9b038c82364..760866d13614 100644
--- a/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-interactions/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-interactions/warnings.json
@@ -5,7 +5,7 @@
 			"column": 51,
 			"line": 10
 		},
-		"message": "Non-interactive element `<div>` should not be assigned mouse or keyboard event listeners.",
+		"message": "Non-interactive element `<div>` should not be assigned mouse or keyboard event listeners",
 		"start": {
 			"column": 0,
 			"line": 10
@@ -17,7 +17,7 @@
 			"column": 58,
 			"line": 11
 		},
-		"message": "Non-interactive element `<h1>` should not be assigned mouse or keyboard event listeners.",
+		"message": "Non-interactive element `<h1>` should not be assigned mouse or keyboard event listeners",
 		"start": {
 			"column": 0,
 			"line": 11
@@ -29,7 +29,7 @@
 			"column": 50,
 			"line": 12
 		},
-		"message": "Non-interactive element `<h1>` should not be assigned mouse or keyboard event listeners.",
+		"message": "Non-interactive element `<h1>` should not be assigned mouse or keyboard event listeners",
 		"start": {
 			"column": 0,
 			"line": 12
@@ -41,7 +41,7 @@
 			"column": 30,
 			"line": 13
 		},
-		"message": "Non-interactive element `<p>` should not be assigned mouse or keyboard event listeners.",
+		"message": "Non-interactive element `<p>` should not be assigned mouse or keyboard event listeners",
 		"start": {
 			"column": 0,
 			"line": 13
@@ -53,7 +53,7 @@
 			"column": 50,
 			"line": 14
 		},
-		"message": "Non-interactive element `<div>` should not be assigned mouse or keyboard event listeners.",
+		"message": "Non-interactive element `<div>` should not be assigned mouse or keyboard event listeners",
 		"start": {
 			"column": 0,
 			"line": 14
diff --git a/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-to-interactive-role/warnings.json b/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-to-interactive-role/warnings.json
index 839c6639e5f5..dcc9821fd220 100644
--- a/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-to-interactive-role/warnings.json
+++ b/packages/svelte/tests/validator/samples/a11y-no-noninteractive-element-to-interactive-role/warnings.json
@@ -301,7 +301,7 @@
 	},
 	{
 		"code": "a11y_label_has_associated_control",
-		"message": "A form label must be associated with a control.",
+		"message": "A form label must be associated with a control",
 		"start": {
 			"line": 28,
 			"column": 0
diff --git a/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings-2/errors.json b/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings-2/errors.json
index 6a60c090031b..72e1f0973ffc 100644
--- a/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings-2/errors.json
+++ b/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings-2/errors.json
@@ -1,7 +1,7 @@
 [
 	{
 		"code": "mixed_event_handler_syntaxes",
-		"message": "Mixing old (on:click) and new syntaxes for event handling is not allowed. Use only the onclick syntax.",
+		"message": "Mixing old (on:click) and new syntaxes for event handling is not allowed. Use only the onclick syntax",
 		"start": {
 			"line": 11,
 			"column": 8
diff --git a/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings/warnings.json b/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings/warnings.json
index 90fc8fe6f716..34aa6cb59f24 100644
--- a/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings/warnings.json
+++ b/packages/svelte/tests/validator/samples/runes-legacy-syntax-warnings/warnings.json
@@ -5,7 +5,7 @@
 			"column": 13,
 			"line": 10
 		},
-		"message": "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead.",
+		"message": "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead",
 		"start": {
 			"column": 0,
 			"line": 10
@@ -17,7 +17,7 @@
 			"column": 24,
 			"line": 11
 		},
-		"message": "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead.",
+		"message": "Using `<slot>` to render parent content is deprecated. Use `{@render ...}` tags instead",
 		"start": {
 			"column": 0,
 			"line": 11
@@ -29,7 +29,7 @@
 			"column": 22,
 			"line": 12
 		},
-		"message": "Using `on:click` to listen to the click event is deprecated. Use the event attribute `onclick` instead.",
+		"message": "Using `on:click` to listen to the click event is deprecated. Use the event attribute `onclick` instead",
 		"start": {
 			"column": 8,
 			"line": 12
diff --git a/packages/svelte/tests/validator/samples/slot-warning/warnings.json b/packages/svelte/tests/validator/samples/slot-warning/warnings.json
index 367f77f38bc3..a390d1d348a4 100644
--- a/packages/svelte/tests/validator/samples/slot-warning/warnings.json
+++ b/packages/svelte/tests/validator/samples/slot-warning/warnings.json
@@ -1,7 +1,7 @@
 [
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"column": 1,
 			"line": 7
diff --git a/packages/svelte/tests/validator/samples/slot-warning2/warnings.json b/packages/svelte/tests/validator/samples/slot-warning2/warnings.json
index 239f1ded5413..7a273cda5ded 100644
--- a/packages/svelte/tests/validator/samples/slot-warning2/warnings.json
+++ b/packages/svelte/tests/validator/samples/slot-warning2/warnings.json
@@ -1,7 +1,7 @@
 [
 	{
 		"code": "a11y_click_events_have_key_events",
-		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details.",
+		"message": "Visible, non-interactive elements with a click event must be accompanied by a keyboard event handler. Consider whether an interactive element such as `<button type=\"button\">` or `<a>` might be more appropriate. See https://svelte.dev/docs/accessibility-warnings#a11y-click-events-have-key-events for more details",
 		"start": {
 			"column": 1,
 			"line": 8