diff --git a/eslint.config.mjs b/eslint.config.mjs
index 0d39a07..7f4d7a0 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -2,7 +2,7 @@ import prettier from "eslint-config-prettier";
 import tseslint from "typescript-eslint";
 
 export default tseslint.config(
-  { ignores: ["dist/", "coverage/"] },
+  { ignores: ["dist/", "coverage/", "src/scripts/generated/"] },
   ...tseslint.configs.recommended,
   prettier,
   {
diff --git a/package.json b/package.json
index 2e39ce7..4ccd6b0 100644
--- a/package.json
+++ b/package.json
@@ -16,11 +16,12 @@
     "test": "vitest run",
     "test:watch": "vitest",
     "test:coverage": "vitest run --coverage",
-    "typecheck": "tsc --noEmit",
+    "typecheck": "tsc --noEmit && npm run typecheck:client",
+    "typecheck:client": "tsc -p src/scripts/client/tsconfig.json --noEmit",
     "prepare": "husky && npm run build:client"
   },
   "lint-staged": {
-    "*.{ts,js}": [
+    "*.{ts,tsx,js,jsx}": [
       "eslint --fix",
       "prettier --write"
     ],
diff --git a/src/routes/admin/feeds.tsx b/src/routes/admin/feeds.tsx
index 98fcdd1..d6be12b 100644
--- a/src/routes/admin/feeds.tsx
+++ b/src/routes/admin/feeds.tsx
@@ -12,7 +12,6 @@ import {
   updateFeedInList,
   removeFeedFromList,
   removeFeedsFromListBulk,
-  deleteKeysWithConcurrency,
   purgeFeedKeysStep,
 } from "./helpers";
 
@@ -45,7 +44,12 @@ const updateFeedSchema = z.object({
 });
 
 const senderFilterSchema = z.object({
-  action: z.enum(["allow_sender", "allow_domain", "block_sender", "block_domain"]),
+  action: z.enum([
+    "allow_sender",
+    "allow_domain",
+    "block_sender",
+    "block_domain",
+  ]),
   value: z.string().min(1),
 });
 
@@ -668,7 +672,9 @@ feedsRouter.post("/bulk-delete", async (c) => {
 
       const deletedFeedIds = await removeFeedsFromListBulk(emailStorage, okIds);
       if (deletedFeedIds.length > 0) {
-        await bumpCounters(emailStorage, { feeds_deleted: deletedFeedIds.length });
+        await bumpCounters(emailStorage, {
+          feeds_deleted: deletedFeedIds.length,
+        });
       }
 
       const removed = new Set(deletedFeedIds);
@@ -720,7 +726,9 @@ feedsRouter.post("/bulk-delete", async (c) => {
 
     const deletedFeedIds = await removeFeedsFromListBulk(emailStorage, okIds);
     if (deletedFeedIds.length > 0) {
-      await bumpCounters(emailStorage, { feeds_deleted: deletedFeedIds.length });
+      await bumpCounters(emailStorage, {
+        feeds_deleted: deletedFeedIds.length,
+      });
     }
 
     return c.redirect(
diff --git a/src/scripts/client/dashboard.ts b/src/scripts/client/dashboard.ts
index fe96eac..0356b39 100644
--- a/src/scripts/client/dashboard.ts
+++ b/src/scripts/client/dashboard.ts
@@ -341,21 +341,6 @@ function refreshFeedRowCache(): void {
   updateFeedSelectionState();
 }
 
-interface ToastHandle {
-  update?: (msg: string, opts?: Record<string, unknown>) => void;
-  dismiss?: () => void;
-}
-
-declare global {
-  interface Window {
-    showToast?: (msg: string, opts?: Record<string, unknown>) => ToastHandle;
-    parseJsonResponseOrThrow?: (
-      res: Response,
-      opts?: Record<string, unknown>,
-    ) => Promise<Record<string, unknown>>;
-  }
-}
-
 function setupFeedDeleteButtons(): void {
   const buttons = Array.from(
     document.querySelectorAll<HTMLButtonElement>(
diff --git a/src/scripts/client/emails-page.ts b/src/scripts/client/emails-page.ts
index 67a8a84..d2ebbe3 100644
--- a/src/scripts/client/emails-page.ts
+++ b/src/scripts/client/emails-page.ts
@@ -321,21 +321,6 @@ function refreshEmailRowCache(): void {
   updateEmailSelectionState();
 }
 
-interface ToastHandle {
-  update?: (msg: string, opts?: Record<string, unknown>) => void;
-  dismiss?: () => void;
-}
-
-declare global {
-  interface Window {
-    showToast?: (msg: string, opts?: Record<string, unknown>) => ToastHandle;
-    parseJsonResponseOrThrow?: (
-      res: Response,
-      opts?: Record<string, unknown>,
-    ) => Promise<Record<string, unknown>>;
-  }
-}
-
 function setupEmailDeleteButtons(): void {
   Array.from(
     document.querySelectorAll<HTMLButtonElement>(
diff --git a/src/scripts/client/globals.d.ts b/src/scripts/client/globals.d.ts
new file mode 100644
index 0000000..c6cc1a0
--- /dev/null
+++ b/src/scripts/client/globals.d.ts
@@ -0,0 +1,32 @@
+// Ambient declarations for browser globals injected at runtime via inline
+// <script> bundles (see src/scripts/toast.ts and src/scripts/httpErrors.ts).
+// Those helpers attach themselves to window rather than being importable, so the
+// client TypeScript needs them declared here to type-check.
+
+interface ToastOptions {
+  type?: "info" | "success" | "warning" | "error" | (string & {});
+  loading?: boolean;
+  duration?: number;
+}
+
+interface ToastHandle {
+  dismiss: () => void;
+  update: (message: string, opts?: ToastOptions) => void;
+}
+
+interface ParseJsonOptions {
+  prefix?: string;
+  allowText?: boolean;
+}
+
+declare global {
+  interface Window {
+    showToast: (message: string, opts?: ToastOptions) => ToastHandle;
+    parseJsonResponseOrThrow: (
+      res: Response,
+      opts?: ParseJsonOptions,
+    ) => Promise<Record<string, unknown>>;
+  }
+}
+
+export {};