diff --git a/packages/app/src/i18n/parity.test.ts b/packages/app/src/i18n/parity.test.ts
deleted file mode 100644
index d2f1ed35d1..0000000000
--- a/packages/app/src/i18n/parity.test.ts
+++ /dev/null
@@ -1,230 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { desktopNativePluralCategories } from "./desktop-native"
-
-const appLocales = [
-  "ar",
-  "br",
-  "bs",
-  "da",
-  "de",
-  "es",
-  "fr",
-  "ja",
-  "ko",
-  "no",
-  "pl",
-  "ru",
-  "uk",
-  "th",
-  "tr",
-  "zh",
-  "zht",
-  "hi",
-  "nl",
-  "id",
-  "vi",
-  "it",
-  "ur",
-  "pa",
-  "az",
-  "fi",
-  "sv",
-  "am",
-  "bg",
-  "bn",
-  "ca",
-  "cs",
-  "dv",
-  "dz",
-  "el",
-  "et",
-  "fa",
-  "fo",
-  "hr",
-  "hu",
-  "hy",
-  "is",
-  "ka",
-  "km",
-  "lo",
-  "lt",
-  "lv",
-  "mk",
-  "mn",
-  "ms",
-  "my",
-  "ne",
-  "ro",
-  "si",
-  "sk",
-  "sl",
-  "sq",
-  "sr",
-  "tg",
-  "tk",
-  "uz",
-] as const
-const desktopLocales = appLocales
-const pluralCategories = new Map(
-  appLocales.map(
-    (locale) =>
-      [
-        locale,
-        desktopNativePluralCategories(locale).filter((category) => category !== "one" && category !== "other"),
-      ] as const,
-  ),
-)
-
-const domains = [
-  {
-    name: "app",
-    source: "./en.ts",
-    target: (locale: string) => `./${locale}.ts`,
-    locales: appLocales,
-  },
-  {
-    name: "ui",
-    source: "../../../ui/src/i18n/en.ts",
-    target: (locale: string) => `../../../ui/src/i18n/${locale}.ts`,
-    locales: appLocales,
-  },
-  {
-    name: "desktop",
-    source: "../../../desktop/src/renderer/i18n/en.ts",
-    target: (locale: string) => `../../../desktop/src/renderer/i18n/${locale}.ts`,
-    locales: desktopLocales,
-  },
-] as const
-
-describe("i18n parity", () => {
-  test("non-English locales have every English key and required plural variants", async () => {
-    for (const domain of domains) {
-      const source = await dictionary(domain.source)
-      for (const locale of domain.locales) {
-        const target = await dictionary(domain.target(locale))
-        const missing = Object.keys(source).filter((key) => !Object.hasOwn(target, key))
-        const extra = Object.keys(target)
-          .filter((key) => !Object.hasOwn(source, key))
-          .sort()
-        const expected = pluralFamilies(source)
-          .flatMap((key) => (pluralCategories.get(locale) ?? []).map((category) => `${key}.${category}`))
-          .sort()
-        expect({ domain: domain.name, locale, missing, extra }).toEqual({
-          domain: domain.name,
-          locale,
-          missing: [],
-          extra: expected,
-        })
-      }
-    }
-  })
-
-  test("non-English locales preserve English placeholders", async () => {
-    for (const domain of domains) {
-      const source = await dictionary(domain.source)
-      for (const locale of domain.locales) {
-        const target = await dictionary(domain.target(locale))
-        const mismatched = Object.keys(source).filter(
-          (key) => Object.hasOwn(target, key) && placeholders(source[key]).join() !== placeholders(target[key]).join(),
-        )
-        const pluralMismatched = pluralFamilies(source).flatMap((key) =>
-          (pluralCategories.get(locale) ?? [])
-            .map((category) => `${key}.${category}`)
-            .filter((variant) => placeholders(source[`${key}.other`]).join() !== placeholders(target[variant]).join()),
-        )
-        expect({ domain: domain.name, locale, mismatched, pluralMismatched }).toEqual({
-          domain: domain.name,
-          locale,
-          mismatched: [],
-          pluralMismatched: [],
-        })
-      }
-    }
-  })
-
-  test("non-English locales translate targeted unseen session keys", async () => {
-    const source = await dictionary("./en.ts")
-    for (const locale of appLocales) {
-      const target = await dictionary(`./${locale}.ts`)
-      for (const key of ["command.session.previous.unseen", "command.session.next.unseen"]) {
-        expect(target[key]).toBeDefined()
-        expect(target[key]).not.toBe(source[key])
-      }
-    }
-  })
-
-  test("changed-file summary keys preserve rendered English copy and localize complete phrases", async () => {
-    const source = await dictionary("../../../ui/src/i18n/en.ts")
-    expect(source["ui.sessionTurn.diffs.changed.one"].replace("{{count}}", "1")).toBe("1 Changed file")
-    expect(source["ui.sessionTurn.diffs.changed.other"].replace("{{count}}", "2")).toBe("2 Changed files")
-    expect(source["ui.sessionTurn.diffs.changed"]).toBeUndefined()
-
-    for (const locale of appLocales) {
-      const target = await dictionary(`../../../ui/src/i18n/${locale}.ts`)
-      for (const key of ["ui.sessionTurn.diffs.changed.one", "ui.sessionTurn.diffs.changed.other"]) {
-        expect(target[key].trim()).not.toBe("")
-        expect(placeholders(target[key])).toEqual(["count"])
-      }
-    }
-  })
-})
-
-describe("i18n plural parity", () => {
-  test("locale-specific categories exist and preserve count placeholders", async () => {
-    for (const domain of domains.slice(0, 2)) {
-      const source = await dictionary(domain.source)
-      const families = pluralFamilies(source)
-      for (const locale of domain.locales) {
-        const target = await dictionary(domain.target(locale))
-        const missing = families.flatMap((key) =>
-          (pluralCategories.get(locale) ?? [])
-            .map((category) => `${key}.${category}`)
-            .filter((variant) => !Object.hasOwn(target, variant)),
-        )
-        const mismatched = families.flatMap((key) =>
-          (pluralCategories.get(locale) ?? [])
-            .map((category) => `${key}.${category}`)
-            .filter(
-              (variant) =>
-                Object.hasOwn(target, variant) &&
-                placeholders(source[`${key}.other`]).join() !== placeholders(target[variant]).join(),
-            ),
-        )
-        expect({ domain: domain.name, locale, missing, mismatched }).toEqual({
-          domain: domain.name,
-          locale,
-          missing: [],
-          mismatched: [],
-        })
-      }
-    }
-  })
-})
-
-async function dictionary(file: string) {
-  const module: unknown = await import(file)
-  if (typeof module !== "object" || module === null || !("dict" in module) || !isDictionary(module.dict)) {
-    throw new Error(`Invalid translation dictionary: ${file}`)
-  }
-  return module.dict
-}
-
-function isDictionary(value: unknown): value is Record<string, string> {
-  if (typeof value !== "object" || value === null || Array.isArray(value)) return false
-  return Object.values(value).every((item) => typeof item === "string")
-}
-
-function placeholders(value: string) {
-  return Array.from(value.matchAll(/{{\s*([^}]+?)\s*}}/g), (match) => match[1]).sort()
-}
-
-function pluralFamilies(dictionary: Record<string, string>) {
-  return Object.keys(dictionary)
-    .filter(
-      (key) =>
-        key.endsWith(".one") &&
-        dictionary[key].includes("{{count}}") &&
-        dictionary[`${key.slice(0, -4)}.other`]?.includes("{{count}}"),
-    )
-    .map((key) => key.slice(0, -4))
-}