diff --git a/frontend/src/app/activity/page.tsx b/frontend/src/app/activity/page.tsx
index 4339af04..79b6d7e1 100644
--- a/frontend/src/app/activity/page.tsx
+++ b/frontend/src/app/activity/page.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import React, { useState, useEffect, useCallback } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { useWallet } from "@/context/wallet-context";
 import { ActivityHistory } from "@/components/dashboard/ActivityHistory";
 import { BackendStreamEvent } from "@/lib/api-types";
diff --git a/frontend/src/components/FAQ.tsx b/frontend/src/components/FAQ.tsx
index 649ad3b3..195d6a4b 100644
--- a/frontend/src/components/FAQ.tsx
+++ b/frontend/src/components/FAQ.tsx
@@ -1,4 +1,4 @@
-import React from 'react';
+
 import { Card } from './ui/Card';
 
 const faqs = [
diff --git a/frontend/src/components/Features.tsx b/frontend/src/components/Features.tsx
index 175408ac..74a146a4 100644
--- a/frontend/src/components/Features.tsx
+++ b/frontend/src/components/Features.tsx
@@ -1,4 +1,4 @@
-import React from 'react';
+
 import { Card } from './ui/Card';
 
 const featureList = [
diff --git a/frontend/src/components/Hero.tsx b/frontend/src/components/Hero.tsx
index 925aaff7..1d33f846 100644
--- a/frontend/src/components/Hero.tsx
+++ b/frontend/src/components/Hero.tsx
@@ -1,4 +1,4 @@
-import React from 'react';
+
 import { Button } from './ui/Button';
 import { MobileMockup } from './MobileMockup';
 
diff --git a/frontend/src/components/HowItWorks.tsx b/frontend/src/components/HowItWorks.tsx
index 6df11696..0f4f80ab 100644
--- a/frontend/src/components/HowItWorks.tsx
+++ b/frontend/src/components/HowItWorks.tsx
@@ -1,4 +1,4 @@
-import React from 'react';
+
 
 const steps = [
     {
diff --git a/frontend/src/components/MobileMockup.tsx b/frontend/src/components/MobileMockup.tsx
index 32f218f0..28464c37 100644
--- a/frontend/src/components/MobileMockup.tsx
+++ b/frontend/src/components/MobileMockup.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import React, { useState, useEffect } from 'react';
+import { useState, useEffect } from 'react';
 
 export const MobileMockup = () => {
     const [streamedAmount, setStreamedAmount] = useState(12540.00);
diff --git a/frontend/src/components/Stats.tsx b/frontend/src/components/Stats.tsx
index 9ed9a9c6..e5dc86a0 100644
--- a/frontend/src/components/Stats.tsx
+++ b/frontend/src/components/Stats.tsx
@@ -1,4 +1,4 @@
-import React from 'react';
+
 
 const stats = [
     { label: 'Total Value Locked', value: '$240M+', gradient: 'text-gradient' },
diff --git a/frontend/src/components/dashboard/SSEStatusIndicator.tsx b/frontend/src/components/dashboard/SSEStatusIndicator.tsx
index 0a6697f1..41f95613 100644
--- a/frontend/src/components/dashboard/SSEStatusIndicator.tsx
+++ b/frontend/src/components/dashboard/SSEStatusIndicator.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import React, { useMemo } from "react";
+import { useMemo } from "react";
 import { AlertCircle } from "lucide-react";
 
 interface SSEStatusIndicatorProps {
diff --git a/frontend/src/components/dashboard/dashboard-view.tsx b/frontend/src/components/dashboard/dashboard-view.tsx
index f09a5f18..cf97aa71 100644
--- a/frontend/src/components/dashboard/dashboard-view.tsx
+++ b/frontend/src/components/dashboard/dashboard-view.tsx
@@ -454,13 +454,15 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {
   React.useEffect(() => {
     if (streamEvents.length > 0) {
       const latestEvent = streamEvents[0];
-      const relevantTypes = ["created", "topped_up", "withdrawn", "cancelled", "completed", "paused", "resumed"];
-      if (relevantTypes.includes(latestEvent.type)) {
-        fetchDashboardData(session.publicKey)
-          .then(setSnapshot)
-          .catch((err) => {
-            setSnapshotError(err instanceof Error ? err.message : "Failed to refresh dashboard");
-          });
+      if (latestEvent) {
+        const relevantTypes = ["created", "topped_up", "withdrawn", "cancelled", "completed", "paused", "resumed"];
+        if (relevantTypes.includes(latestEvent.type)) {
+          fetchDashboardData(session.publicKey)
+            .then(setSnapshot)
+            .catch((err) => {
+              setSnapshotError(err instanceof Error ? err.message : "Failed to refresh dashboard");
+            });
+        }
       }
     }
   }, [streamEvents, session.publicKey]);
@@ -626,7 +628,7 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {
   };
 
   const addStreamLocally = (data: StreamFormData) => {
-    const newStream: Stream = { id: `stream-${Date.now()}`, date: new Date().toISOString().split("T")[0], recipient: shortenPublicKey(data.recipient), amount: parseFloat(data.amount), token: data.token, status: "Active", deposited: parseFloat(data.amount), withdrawn: 0, ratePerSecond: 0, lastUpdateTime: Math.floor(Date.now() / 1000), isActive: true };
+    const newStream: Stream = { id: `stream-${Date.now()}`, date: new Date().toISOString().split("T")[0] ?? "", recipient: shortenPublicKey(data.recipient), amount: parseFloat(data.amount), token: data.token, status: "Active", deposited: parseFloat(data.amount), withdrawn: 0, ratePerSecond: 0, lastUpdateTime: Math.floor(Date.now() / 1000), isActive: true };
     setSnapshot((prev) => { if (!prev) return prev; return { ...prev, outgoingStreams: [newStream, ...prev.outgoingStreams], activeStreamsCount: prev.activeStreamsCount + 1 }; });
   };
 
diff --git a/frontend/src/components/streamCreationForm.test.tsx b/frontend/src/components/streamCreationForm.test.tsx
index e47d9e4e..54739609 100644
--- a/frontend/src/components/streamCreationForm.test.tsx
+++ b/frontend/src/components/streamCreationForm.test.tsx
@@ -6,7 +6,7 @@ vi.mock("next/navigation", () => ({
 }));
 
 import { StreamCreationWizard } from "./stream-creation/StreamCreationWizard";
-import React from "react";
+
 
 test("StreamCreationWizard — validation errors shown", () => {
   const mockOnClose = vi.fn();
diff --git a/frontend/src/components/streams/IncomingStreamCard.tsx b/frontend/src/components/streams/IncomingStreamCard.tsx
index 59898556..0588d4fe 100644
--- a/frontend/src/components/streams/IncomingStreamCard.tsx
+++ b/frontend/src/components/streams/IncomingStreamCard.tsx
@@ -1,6 +1,5 @@
 "use client";
 
-import React from "react";
 import { Button } from "@/components/ui/Button";
 import { useStreamingAmount } from "@/hooks/useStreamingAmount";
 import type {
diff --git a/frontend/src/components/ui/Skeleton.tsx b/frontend/src/components/ui/Skeleton.tsx
index 3377e22f..31754be2 100644
--- a/frontend/src/components/ui/Skeleton.tsx
+++ b/frontend/src/components/ui/Skeleton.tsx
@@ -1,4 +1,4 @@
-import React from "react";
+
 
 export function Skeleton({ className = "" }: { className?: string }) {
   return (
diff --git a/frontend/src/components/wallet/WalletButton.tsx b/frontend/src/components/wallet/WalletButton.tsx
index 16357719..d308fbf1 100644
--- a/frontend/src/components/wallet/WalletButton.tsx
+++ b/frontend/src/components/wallet/WalletButton.tsx
@@ -13,7 +13,7 @@
  *     - "Disconnect" button
  */
 
-import React, { useState, useRef, useEffect } from "react";
+import { useState, useRef, useEffect } from "react";
 import { useWallet } from "@/context/wallet-context";
 import {
   shortenPublicKey,
diff --git a/frontend/src/hooks/useModalDialog.ts b/frontend/src/hooks/useModalDialog.ts
index 06b8545d..297d5cab 100644
--- a/frontend/src/hooks/useModalDialog.ts
+++ b/frontend/src/hooks/useModalDialog.ts
@@ -60,14 +60,16 @@ export function useModalDialog({
       const firstElement = focusableElements[0];
       const lastElement = focusableElements[focusableElements.length - 1];
 
-      if (event.shiftKey && document.activeElement === firstElement) {
-        event.preventDefault();
-        lastElement.focus();
-      }
+      if (firstElement && lastElement) {
+        if (event.shiftKey && document.activeElement === firstElement) {
+          event.preventDefault();
+          lastElement.focus();
+        }
 
-      if (!event.shiftKey && document.activeElement === lastElement) {
-        event.preventDefault();
-        firstElement.focus();
+        if (!event.shiftKey && document.activeElement === lastElement) {
+          event.preventDefault();
+          firstElement.focus();
+        }
       }
     };
 
diff --git a/frontend/src/lib/amount.ts b/frontend/src/lib/amount.ts
index 56fddca8..efc22c19 100644
--- a/frontend/src/lib/amount.ts
+++ b/frontend/src/lib/amount.ts
@@ -94,7 +94,7 @@ export function hasValidPrecision(input: string, decimals: number): boolean {
   if (!/^\d*\.?\d*$/.test(cleanInput)) return false;
   
   if (cleanInput.includes('.')) {
-    const fractionalPart = cleanInput.split('.')[1];
+    const fractionalPart = cleanInput.split('.')[1] ?? '';
     return fractionalPart.length <= decimals;
   }
   
diff --git a/frontend/src/lib/dashboard.ts b/frontend/src/lib/dashboard.ts
index 3a771bce..cf5b2cdc 100644
--- a/frontend/src/lib/dashboard.ts
+++ b/frontend/src/lib/dashboard.ts
@@ -119,7 +119,7 @@ export function mapBackendStreamToFrontend(s: BackendStream, counterparty: strin
     status: mapStreamStatus(s),
     deposited,
     withdrawn,
-    date: new Date(s.startTime * 1000).toISOString().split("T")[0],
+    date: new Date(s.startTime * 1000).toISOString().split("T")[0] ?? "",
     ratePerSecond,
     lastUpdateTime: s.lastUpdateTime,
     isActive: s.isActive,
diff --git a/frontend/src/lib/soroban.ts b/frontend/src/lib/soroban.ts
index 81366846..a3911839 100644
--- a/frontend/src/lib/soroban.ts
+++ b/frontend/src/lib/soroban.ts
@@ -101,14 +101,14 @@ export function fromBaseUnits(value: bigint | string, decimals = 7): string {
   return fraction.length > 0 ? `${whole}.${fraction}` : whole.toString();
 }
 
-export const TOKEN_ADDRESSES: Record<string, string> = {
+export const TOKEN_ADDRESSES = {
   USDC: process.env.NEXT_PUBLIC_USDC_ADDRESS  ?? "CBIELTK6YBZJU5UP2WWQEUCYKLPU6AUNZ2BQ4WWFEIE3USCIHMXQDAMA",
   XLM:  process.env.NEXT_PUBLIC_XLM_ADDRESS   ?? "CDLZFC3SYJYDZT7K67VZ75HPJVIEUVNIXF47ZG2FB2RMQQVU2HHGCN",
   EURC: process.env.NEXT_PUBLIC_EURC_ADDRESS  ?? "CCWAMYJME4YOIUNAKVYEBYOG5I65QMKEX2NMN4OJAPXRPIF24ONPSHY",
-};
+} as const;
 
 export function getTokenAddress(symbol: string): string {
-  const address = TOKEN_ADDRESSES[symbol.toUpperCase()];
+  const address = (TOKEN_ADDRESSES as Record<string, string>)[symbol.toUpperCase()];
   if (!address) {
     throw new SorobanCallError(`Unsupported token: ${symbol}`, "Unknown");
   }
diff --git a/frontend/src/utils/csvExport.ts b/frontend/src/utils/csvExport.ts
index 0b19e16a..6dc527a6 100644
--- a/frontend/src/utils/csvExport.ts
+++ b/frontend/src/utils/csvExport.ts
@@ -19,7 +19,9 @@ export const convertArrayToCSV = <T extends CsvRow>(
     if (!arr || arr.length === 0) return '';
 
     const separator = ',';
-    const keys = Object.keys(arr[0]);
+    const firstRow = arr[0];
+    if (!firstRow) return '';
+    const keys = Object.keys(firstRow);
 
     return [
         keys.join(separator),
diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
index 343beaf5..86b8d82c 100644
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@@ -7,6 +7,8 @@
     "strict": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
     "noEmit": true,
     "esModuleInterop": true,
     "module": "esnext",