diff --git a/apps/web-evals/src/app/runs/[id]/run.tsx b/apps/web-evals/src/app/runs/[id]/run.tsx
index 0b1f9250e1..cfbe4ba5f0 100644
--- a/apps/web-evals/src/app/runs/[id]/run.tsx
+++ b/apps/web-evals/src/app/runs/[id]/run.tsx
@@ -9,6 +9,7 @@ import type { Run, TaskMetrics as _TaskMetrics, Task } from "@roo-code/evals"
 import type { ToolName } from "@roo-code/types"
 
 import { formatCurrency, formatDuration, formatTokens, formatToolUsageSuccessRate } from "@/lib/formatters"
+import { deserializeBoolean } from "@/lib/storage"
 import { useRunStatus } from "@/hooks/use-run-status"
 import { killRun } from "@/actions/runs"
 import {
@@ -255,18 +256,6 @@ export function Run({ run }: { run: Run }) {
 	const [showKillDialog, setShowKillDialog] = useState(false)
 	const [isKilling, setIsKilling] = useState(false)
 
-	function deserializeBoolean(value: string): boolean {
-		// Support both raw-string storage and default `useLocalStorage` JSON serialization.
-		if (value === "true") return true
-		if (value === "false") return false
-		try {
-			const parsed: unknown = JSON.parse(value)
-			return typeof parsed === "boolean" ? parsed : false
-		} catch {
-			return false
-		}
-	}
-
 	const [groupByStatus, setGroupByStatus] = useLocalStorage<boolean>("evals-group-by-status", false, {
 		serializer: (value: boolean) => String(value),
 		deserializer: deserializeBoolean,
diff --git a/apps/web-evals/src/app/runs/new/new-run.tsx b/apps/web-evals/src/app/runs/new/new-run.tsx
index aaff8cdcd5..55bcd81d11 100644
--- a/apps/web-evals/src/app/runs/new/new-run.tsx
+++ b/apps/web-evals/src/app/runs/new/new-run.tsx
@@ -48,7 +48,7 @@ import {
 	ITERATIONS_DEFAULT,
 } from "@/lib/schemas"
 import { cn } from "@/lib/utils"
-import { deserializeNumber, deserializeString, deserializeStringArray } from "@/lib/storage"
+import { deserializeEnum, deserializeNumber, deserializeStringArray } from "@/lib/storage"
 
 import { loadRooLastModelSelection, saveRooLastModelSelection } from "@/lib/roo-last-model-selection"
 import { normalizeCreateRunForSubmit } from "@/lib/normalize-create-run"
@@ -106,6 +106,8 @@ type ConfigSelection = {
 	popoverOpen: boolean
 }
 
+const SUITE_VALUES: ReadonlySet<"full" | "partial"> = new Set(["full", "partial"])
+
 export function NewRun() {
 	const router = useRouter()
 	const modelSelectionsByProviderRef = useRef<Record<string, ModelSelection[]>>({})
@@ -143,7 +145,7 @@ export function NewRun() {
 	})
 	const [savedSuite, setSavedSuite] = useLocalStorage<"full" | "partial">("evals-suite", "full", {
 		serializer: (value: "full" | "partial") => value,
-		deserializer: (raw: string) => (deserializeString(raw) === "partial" ? "partial" : "full"),
+		deserializer: (raw: string) => deserializeEnum(raw, SUITE_VALUES, "full"),
 		initializeWithValue: false,
 	})
 	const [savedExercises, setSavedExercises] = useLocalStorage<string[]>("evals-exercises", [], {
diff --git a/apps/web-evals/src/types/usehooks-ts.d.ts b/apps/web-evals/src/types/usehooks-ts.d.ts
deleted file mode 100644
index 9fa0c8fe9d..0000000000
--- a/apps/web-evals/src/types/usehooks-ts.d.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-declare module "usehooks-ts" {
-	import type { Dispatch, SetStateAction } from "react"
-
-	export type UseLocalStorageOptions<T> = {
-		serializer?: (value: T) => string
-		deserializer?: (value: string) => T
-		initializeWithValue?: boolean
-	}
-
-	export function useLocalStorage<T>(
-		key: string,
-		initialValue: T | (() => T),
-		options?: UseLocalStorageOptions<T>,
-	): [T, Dispatch<SetStateAction<T>>, () => void]
-}