diff --git a/App.tsx b/App.tsx
index 0d43b03..082817b 100644
--- a/App.tsx
+++ b/App.tsx
@@ -114,6 +114,7 @@ const App: React.FC = () => {
     return (
       <RepoDetail
         token={token}
+        user={user}
         repo={selectedRepo}
         onBack={navigateBack}
         onIssueSelect={navigateToIssue}
diff --git a/services/cacheService.ts b/services/cacheService.ts
index d862ba9..300a65b 100644
--- a/services/cacheService.ts
+++ b/services/cacheService.ts
@@ -61,13 +61,13 @@ export function clearCache(key?: string): void {
 
 // Cache keys helper
 export const CacheKeys = {
-  repos: () => 'repos',
+  repos: (userId: string) => `repos_${userId}`,
   repoIssues: (owner: string, repo: string) => `issues_${owner}_${repo}`,
   issueComments: (owner: string, repo: string, issueNumber: number) => `comments_${owner}_${repo}_${issueNumber}`,
   workflowRuns: (owner: string, repo: string) => `workflows_${owner}_${repo}`,
   prDetails: (owner: string, repo: string, prNumber: number) => `pr_${owner}_${repo}_${prNumber}`,
   issueExpandedData: (owner: string, repo: string, issueNumber: number) => `expanded_${owner}_${repo}_${issueNumber}`,
-  workflowFiles: () => 'workflow_files',
+  workflowFiles: (userId: string) => `workflow_files_${userId}`,
 };
 
 // Type for cached expanded issue data (all data needed for expanded view)
diff --git a/views/Dashboard.tsx b/views/Dashboard.tsx
index 253013c..5bc8237 100644
--- a/views/Dashboard.tsx
+++ b/views/Dashboard.tsx
@@ -20,11 +20,11 @@ export const Dashboard: React.FC<DashboardProps> = ({ token, user, onRepoSelect,
   
   // Initialize from cache for instant display
   const [repos, setRepos] = useState<Repository[]>(() => {
-    return getCached<Repository[]>(CacheKeys.repos()) || [];
+    return getCached<Repository[]>(CacheKeys.repos(user.login)) || [];
   });
   const [loading, setLoading] = useState(() => {
     // Only show loading if no cached data
-    return !getCached<Repository[]>(CacheKeys.repos());
+    return !getCached<Repository[]>(CacheKeys.repos(user.login));
   });
   const [isRefreshing, setIsRefreshing] = useState(false);
   const [error, setError] = useState('');
@@ -34,9 +34,9 @@ export const Dashboard: React.FC<DashboardProps> = ({ token, user, onRepoSelect,
   });
   // Initialize issues from cache for instant display
   const [repoIssues, setRepoIssues] = useState<Record<number, Issue[]>>(() => {
-    const cachedRepos = getCached<Repository[]>(CacheKeys.repos());
+    const cachedRepos = getCached<Repository[]>(CacheKeys.repos(user.login));
     if (!cachedRepos) return {};
-    
+
     const issuesMap: Record<number, Issue[]> = {};
     for (const repo of cachedRepos.slice(0, 4)) {
       const cachedIssues = getCached<Issue[]>(CacheKeys.repoIssues(repo.owner.login, repo.name));
@@ -91,7 +91,7 @@ export const Dashboard: React.FC<DashboardProps> = ({ token, user, onRepoSelect,
       const data = await fetchRepositories(token);
       setRepos(data);
       // Cache the repos for instant display on next visit
-      setCache(CacheKeys.repos(), data);
+      setCache(CacheKeys.repos(user.login), data);
       
       // Load issues for first 4 repos - reuse cache when available
       const reposToShow = data.slice(0, 4);
diff --git a/views/RepoDetail.tsx b/views/RepoDetail.tsx
index 110eb7a..7b81a07 100644
--- a/views/RepoDetail.tsx
+++ b/views/RepoDetail.tsx
@@ -8,12 +8,13 @@ import { getCached, setCache, CacheKeys } from '../services/cacheService';
 
 interface RepoDetailProps {
   token: string;
+  user: { login: string };
   repo: Repository;
   onBack: () => void;
   onIssueSelect: (issue: Issue) => void;
 }
 
-export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onIssueSelect }) => {
+export const RepoDetail: React.FC<RepoDetailProps> = ({ token, user, repo, onBack, onIssueSelect }) => {
   const { toasts, dismissToast, showError } = useToast();
   const cacheKey = CacheKeys.repoIssues(repo.owner.login, repo.name);
   
@@ -36,7 +37,7 @@ export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onI
 
   // Workflow Files State
   const [workflowFiles, setWorkflowFiles] = useState<WorkflowFile[]>(() => {
-    return getCached<WorkflowFile[]>(CacheKeys.workflowFiles()) || [];
+    return getCached<WorkflowFile[]>(CacheKeys.workflowFiles(user.login)) || [];
   });
   const [loadingWorkflows, setLoadingWorkflows] = useState(false);
   const [workflowsExpanded, setWorkflowsExpanded] = useState(false);
@@ -99,7 +100,7 @@ export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onI
   };
 
   const loadWorkflowFiles = React.useCallback(async () => {
-    const cachedWorkflows = getCached<WorkflowFile[]>(CacheKeys.workflowFiles());
+    const cachedWorkflows = getCached<WorkflowFile[]>(CacheKeys.workflowFiles(user.login));
     if (cachedWorkflows && cachedWorkflows.length > 0) {
       setWorkflowFiles(cachedWorkflows);
       return;
@@ -108,11 +109,11 @@ export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onI
     setLoadingWorkflows(true);
     try {
       // Fetch repos first if needed
-      const repos = getCached<Repository[]>(CacheKeys.repos()) || [];
+      const repos = getCached<Repository[]>(CacheKeys.repos(user.login)) || [];
       if (repos.length > 0) {
         const workflows = await fetchAllWorkflowFiles(token, repos);
         setWorkflowFiles(workflows);
-        setCache(CacheKeys.workflowFiles(), workflows);
+        setCache(CacheKeys.workflowFiles(user.login), workflows);
       }
     } catch (err) {
       console.error('Failed to load workflow files:', err);