diff --git a/scripts/check-ts-max-loc.ts b/scripts/check-ts-max-loc.ts
index ee59bc5c7531..b9c0077efa80 100644
--- a/scripts/check-ts-max-loc.ts
+++ b/scripts/check-ts-max-loc.ts
@@ -6,6 +6,7 @@ import { resolve } from "node:path";
 import { pathToFileURL } from "node:url";
 
 const DEFAULT_BASELINE_PATH = "scripts/ts-max-loc-baseline-v2.json";
+const CONTROL_UI_LOCALE_BUNDLE_PATTERN = /^ui\/src\/i18n\/locales\/[^/]+\.ts$/u;
 
 function writeStdoutLine(message: string): void {
   process.stdout.write(`${message}\n`);
@@ -80,6 +81,8 @@ function gitLsFilesAll(): string[] {
 export function isProductionTypeScriptFile(filePath: string): boolean {
   return (
     /\.(?:ts|tsx|mts|cts)$/u.test(filePath) &&
+    // Locale bundles grow with every translation key and are governed by the i18n generator.
+    !CONTROL_UI_LOCALE_BUNDLE_PATTERN.test(filePath) &&
     !/(^|\/)(test|tests|__tests__|test-helpers?|test-support)(\/|$)|\.(test|spec|suite)\.[cm]?tsx?$|(?:^|[/.-])test-(?:helpers?|support|harness)(?:[/.-]|$)/u.test(
       filePath,
     )
diff --git a/scripts/ts-max-loc-baseline-v2.json b/scripts/ts-max-loc-baseline-v2.json
index f89454008644..2f5a6dd8a374 100644
--- a/scripts/ts-max-loc-baseline-v2.json
+++ b/scripts/ts-max-loc-baseline-v2.json
@@ -1186,27 +1186,6 @@
   "ui/src/components/markdown.ts": 1493,
   "ui/src/components/terminal/terminal-panel.ts": 1182,
   "ui/src/components/tooltip.ts": 502,
-  "ui/src/i18n/locales/ar.ts": 3758,
-  "ui/src/i18n/locales/de.ts": 3830,
-  "ui/src/i18n/locales/en.ts": 3763,
-  "ui/src/i18n/locales/es.ts": 3827,
-  "ui/src/i18n/locales/fa.ts": 3783,
-  "ui/src/i18n/locales/fr.ts": 3850,
-  "ui/src/i18n/locales/hi.ts": 3753,
-  "ui/src/i18n/locales/id.ts": 3791,
-  "ui/src/i18n/locales/it.ts": 3830,
-  "ui/src/i18n/locales/ja-JP.ts": 3800,
-  "ui/src/i18n/locales/ko.ts": 3771,
-  "ui/src/i18n/locales/nl.ts": 3805,
-  "ui/src/i18n/locales/pl.ts": 3817,
-  "ui/src/i18n/locales/pt-BR.ts": 3800,
-  "ui/src/i18n/locales/ru.ts": 3819,
-  "ui/src/i18n/locales/th.ts": 3728,
-  "ui/src/i18n/locales/tr.ts": 3814,
-  "ui/src/i18n/locales/uk.ts": 3802,
-  "ui/src/i18n/locales/vi.ts": 3777,
-  "ui/src/i18n/locales/zh-CN.ts": 3714,
-  "ui/src/i18n/locales/zh-TW.ts": 3720,
   "ui/src/lib/agents/display.ts": 661,
   "ui/src/lib/chat/commands.ts": 537,
   "ui/src/lib/chat/message-normalizer.ts": 530,
diff --git a/test/scripts/check-ts-max-loc.test.ts b/test/scripts/check-ts-max-loc.test.ts
index bd6740f01e66..396ab0b224a8 100644
--- a/test/scripts/check-ts-max-loc.test.ts
+++ b/test/scripts/check-ts-max-loc.test.ts
@@ -111,6 +111,12 @@ describe("scripts/check-ts-max-loc", () => {
     }
   });
 
+  it("excludes Control UI locale bundles", () => {
+    expect(isProductionTypeScriptFile("ui/src/i18n/locales/en.ts")).toBe(false);
+    expect(isProductionTypeScriptFile("ui/src/i18n/locales/fr.ts")).toBe(false);
+    expect(isProductionTypeScriptFile("ui/src/i18n/lib/translate.ts")).toBe(true);
+  });
+
   it("allows baseline updates only for decreases and removals", () => {
     const violations = findLocBaselineUpdateViolations({
       maxLines: 500,