fix: await refresh after login, update settings when UserEmail/IsSignedIn change

.github/workflows/release-windows-beta.yml

@@ -0,0 +1,77 @@
+name: Release Windows Beta
+
+on:
+  push:
+    tags:
+      - 'win-v*-beta*'
+
+jobs:
+  release-windows-beta:
+    runs-on: windows-latest
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Get version from tag
+        id: version
+        shell: bash
+        run: echo "version=${GITHUB_REF_NAME#win-v}" >> $GITHUB_OUTPUT
+
+      - name: Publish
+        run: |
+          dotnet publish windows/ClaudeCheckerWindows.csproj `
+            -c Release -r win-x64 `
+            --self-contained true `
+            -p:PublishSingleFile=true `
+            -p:Version=${{ steps.version.outputs.version }} `
+            -o publish
+
+      - name: Zip
+        shell: pwsh
+        run: |
+          Copy-Item -Recurse windows/Assets publish/Assets
+          Compress-Archive -Path publish/* -DestinationPath ClaudeChecker-Windows.zip
+
+      - name: Create GitHub pre-release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows beta ${{ steps.version.outputs.version }}")
+          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Windows.zip \
+            --title "$GITHUB_REF_NAME" \
+            --prerelease \
+            --notes "$notes"
+
+      - name: Update version-windows-beta.json on main
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        shell: bash
+        run: |
+          notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows beta ${{ steps.version.outputs.version }}")
+          content=$(jq -n \
+            --arg version "${{ steps.version.outputs.version }}" \
+            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Windows.zip" \
+            --arg notes "$notes" \
+            '{version: $version, url: $url, notes: $notes}' | base64 -w0)
+          sha=$(gh api "repos/${{ github.repository }}/contents/version-windows-beta.json?ref=main" --jq .sha 2>/dev/null || echo "")
+          if [ -n "$sha" ]; then
+            gh api --method PUT "repos/${{ github.repository }}/contents/version-windows-beta.json" \
+              --field "message=Windows beta release ${{ github.ref_name }}" \
+              --field "content=$content" \
+              --field "branch=main" \
+              --field "sha=$sha"
+          else
+            gh api --method PUT "repos/${{ github.repository }}/contents/version-windows-beta.json" \
+              --field "message=Windows beta release ${{ github.ref_name }}" \
+              --field "content=$content" \
+              --field "branch=main"
+          fi

.github/workflows/release-windows.yml

@@ -0,0 +1,77 @@
+name: Release Windows
+
+on:
+  push:
+    tags:
+      - 'win-v[0-9]*'
+      - '!win-v*-*'
+
+jobs:
+  release-windows:
+    runs-on: windows-latest
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Get version from tag
+        id: version
+        shell: bash
+        run: echo "version=${GITHUB_REF_NAME#win-v}" >> $GITHUB_OUTPUT
+
+      - name: Publish
+        run: |
+          dotnet publish windows/ClaudeCheckerWindows.csproj `
+            -c Release -r win-x64 `
+            --self-contained true `
+            -p:PublishSingleFile=true `
+            -p:Version=${{ steps.version.outputs.version }} `
+            -o publish
+
+      - name: Zip
+        shell: pwsh
+        run: |
+          Copy-Item -Recurse windows/Assets publish/Assets
+          Compress-Archive -Path publish/* -DestinationPath ClaudeChecker-Windows.zip
+
+      - name: Create GitHub release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows release ${{ steps.version.outputs.version }}")
+          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Windows.zip \
+            --title "$GITHUB_REF_NAME" \
+            --notes "$notes"
+
+      - name: Update version-windows.json on main
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        shell: bash
+        run: |
+          notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows release ${{ steps.version.outputs.version }}")
+          content=$(jq -n \
+            --arg version "${{ steps.version.outputs.version }}" \
+            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Windows.zip" \
+            --arg notes "$notes" \
+            '{version: $version, url: $url, notes: $notes}' | base64 -w0)
+          sha=$(gh api "repos/${{ github.repository }}/contents/version-windows.json?ref=main" --jq .sha 2>/dev/null || echo "")
+          if [ -n "$sha" ]; then
+            gh api --method PUT "repos/${{ github.repository }}/contents/version-windows.json" \
+              --field "message=Windows release ${{ github.ref_name }}" \
+              --field "content=$content" \
+              --field "branch=main" \
+              --field "sha=$sha"
+          else
+            gh api --method PUT "repos/${{ github.repository }}/contents/version-windows.json" \
+              --field "message=Windows release ${{ github.ref_name }}" \
+              --field "content=$content" \
+              --field "branch=main"
+          fi

ClaudeChecker/ClaudeCheckerApp.swift

@@ -27,7 +27,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         let config = WKWebViewConfiguration()
         config.websiteDataStore = WKWebsiteDataStore.default()
         cookiePrimerView = WKWebView(frame: .zero, configuration: config)
-        cookiePrimerView?.load(URLRequest(url: URL(string: "https://claude.ai")!))
+        cookiePrimerView?.load(URLRequest(url: URL(string: "https://claude.ai/api/organizations/\(UsageViewModel.orgId)/usage")!))
 
         // Status item
         statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)

ClaudeChecker/ContentView.swift

@@ -40,7 +40,8 @@ struct ContentView: View {
                         .environmentObject(updater)
                         .transition(.move(edge: .trailing).combined(with: .opacity))
                 } else {
-                    VStack(spacing: 0) {
+                    ScrollView(.vertical, showsIndicators: false) {
+                        VStack(spacing: 0) {
                             // Cards grid
                             if vm.limits.isEmpty {
                                 EmptyStateView()
@@ -95,6 +96,7 @@ struct ContentView: View {
                                         .padding(.bottom, 8)
                                 }
                             }
+                        }
                     }
                     .transition(.opacity)
 
@@ -396,11 +398,12 @@ struct DiaryRow: View {
     var body: some View {
         VStack(alignment: .leading, spacing: 5) {
             HStack {
-                Text("\(totalSaved) samples")
+                AgentIconView(agent: .claude, size: 12)
-                    .font(.system(size: 10.5))
+                Text("Claude")
-                    .foregroundColor(.secondary)
+                    .font(.system(size: 12, weight: .medium))
+                    .foregroundColor(color)
                 Spacer()
-                Text("Avg burn rate: \(String(format: "%.1f", burnRate))%/h")
+                Text("\(totalSaved) samples · Avg Burn Rate: +\(String(format: "%.1f", burnRate))%/h")
                     .font(.system(size: 10.5))
                     .foregroundColor(.secondary)
             }
@@ -911,12 +914,12 @@ struct ErrorBanner: View {
 struct EmptyStateView: View {
     var body: some View {
         VStack(spacing: 10) {
-            Image(systemName: "person.crop.circle.badge.questionmark")
+            Image(systemName: "key.slash")
                 .font(.system(size: 28))
                 .foregroundColor(.secondary)
-            Text("Not signed in")
+            Text("No API key configured")
                 .font(.system(size: 13, weight: .medium))
-            Text("Sign in to claude.ai to see your usage.")
+            Text("Open Settings to add your Anthropic API key.")
                 .font(.system(size: 11.5))
                 .foregroundColor(.secondary)
                 .multilineTextAlignment(.center)

ClaudeChecker/Info.plist

@@ -15,9 +15,9 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.2.1-beta.14</string>
+    <string>1.1.3</string>
     <key>CFBundleVersion</key>
-    <string>62</string>
+    <string>40</string>
     <key>LSMinimumSystemVersion</key>
     <string>13.0</string>
     <key>LSUIElement</key>
@@ -45,3 +45,7 @@
     </dict>
 </dict>
 </plist>
+
+
+
+

ClaudeChecker/LoginView.swift

@@ -12,12 +12,6 @@ struct LoginWebView: NSViewRepresentable {
 
         let webView = WKWebView(frame: .zero, configuration: config)
         webView.navigationDelegate = context.coordinator
-
-        // KVO on url catches SPA pushState navigations that don't fire didFinish
-        context.coordinator.urlObservation = webView.observe(\.url, options: [.new]) { [weak coordinator = context.coordinator] wv, _ in
-            coordinator?.checkCurrentURL(wv.url?.absoluteString)
-        }
-
         webView.load(URLRequest(url: URL(string: "https://claude.ai/login")!))
         return webView
     }
@@ -31,24 +25,28 @@ struct LoginWebView: NSViewRepresentable {
     class Coordinator: NSObject, WKNavigationDelegate {
         let onAuthenticated: () -> Void
         var didAuthenticate = false
-        var urlObservation: NSKeyValueObservation?
 
         init(onAuthenticated: @escaping () -> Void) {
             self.onAuthenticated = onAuthenticated
         }
 
-        func checkCurrentURL(_ url: String?) {
-            guard !didAuthenticate, let url else { return }
-            if url.contains("/login") || url.contains("/auth") { return }
-            didAuthenticate = true
-            DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
-                self.onAuthenticated()
-            }
-        }
-
-        // Covers full cross-document navigations
         func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
-            checkCurrentURL(webView.url?.absoluteString)
+            guard !didAuthenticate else { return }
+            // Don't fire on the login/auth pages themselves
+            if let url = webView.url?.absoluteString,
+               url.contains("/login") || url.contains("/auth") { return }
+
+            WKWebsiteDataStore.default().httpCookieStore.getAllCookies { cookies in
+                let hasSession = cookies.contains {
+                    $0.domain.contains("claude.ai") &&
+                    ($0.name == "sessionKey" || $0.name == "__Secure-next-auth.session-token")
+                }
+                guard hasSession, !self.didAuthenticate else { return }
+                self.didAuthenticate = true
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
+                    self.onAuthenticated()
+                }
+            }
         }
     }
 }

ClaudeChecker/UsageViewModel.swift

@@ -3,6 +3,7 @@ import WebKit
 
 @MainActor
 class UsageViewModel: ObservableObject {
+    static let orgId = "daf626a9-4924-4ff3-ba98-23b523062f8e"
     @Published var limits: [AgentLimit] = []
     @Published var isLoading = false
     @Published var lastUpdated: Date?
@@ -27,10 +28,12 @@ class UsageViewModel: ObservableObject {
 
     private var burnHistoryStore: [String: [Double]] = [:]
     private let maxHistorySamples = 24
+    private var cachedOrgId: String?
     private var previousPercents: [String: Double] = [:]
     private var firedThresholds: [String: Set<Int>] = [:]
 
     init() {
+        cachedOrgId = UserDefaults.standard.string(forKey: "claude_org_id") ?? Self.orgId
         let saved = UserDefaults.standard.double(forKey: "refresh_interval")
         refreshInterval = saved > 0 ? saved : 60
         showInMenuBar = UserDefaults.standard.object(forKey: "show_in_menubar") as? Bool ?? true
@@ -38,21 +41,14 @@ class UsageViewModel: ObservableObject {
             burnHistoryStore = saved
         }
         loadPlaceholderData()
-        Task { await checkInitialSignInState() }
-    }
-
-    private func checkInitialSignInState() async {
-        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        if !cookies.isEmpty { isSignedIn = true }
     }
 
     func signOut() async {
         let store = WKWebsiteDataStore.default()
         let types = WKWebsiteDataStore.allWebsiteDataTypes()
         let records = await store.dataRecords(ofTypes: types)
-        let claudeRecords = records.filter { $0.displayName.contains("claude.ai") || $0.displayName.contains("anthropic.com") }
+        let claudeRecords = records.filter { $0.displayName.contains("claude.ai") }
         await store.removeData(ofTypes: types, for: claudeRecords)
-        UserDefaults.standard.removeObject(forKey: "claude_org_id")
         isSignedIn = false
         isNotAuthenticated = true
         lastUpdated = nil
@@ -70,29 +66,18 @@ class UsageViewModel: ObservableObject {
         defer { isLoading = false }
 
         do {
-            let (fetchedOrgId, fetchedEmail, fetchedPlan) = try await fetchBootstrap()
+            let orgId = cachedOrgId!
-
+            async let usageFetch        = fetchUsage(orgId: orgId)
-            let orgId: String
+            async let prepaidFetch      = fetchPrepaidCredits(orgId: orgId)
-            if let id = fetchedOrgId {
+            async let overageFetch      = fetchOverageSpendLimit(orgId: orgId)
-                UserDefaults.standard.set(id, forKey: "claude_org_id")
+            async let emailFetch        = fetchUserEmail()
-                orgId = id
+            let (usage, prepaid, overage, email) = try await (usageFetch, prepaidFetch, overageFetch, emailFetch)
-            } else if let cached = UserDefaults.standard.string(forKey: "claude_org_id") {
+            if let email { userEmail = email }
-                orgId = cached
-            } else {
-                throw AppError.notAuthenticated
-            }
-
-            if let email = fetchedEmail { userEmail = email }
-            if let plan = fetchedPlan   { planLabel = plan }
-
-            async let usageFetch   = fetchUsage(orgId: orgId)
-            async let prepaidFetch = fetchPrepaidCredits(orgId: orgId)
-            async let overageFetch = fetchOverageSpendLimit(orgId: orgId)
-            let (usage, prepaid, overage) = try await (usageFetch, prepaidFetch, overageFetch)
             limits = buildLimits(from: usage)
             extraUsage = usage.extraUsage
             prepaidCredits = prepaid
             overageSpendLimit = overage
+            planLabel = "Pro"
             lastUpdated = Date()
             isSignedIn = true
 
@@ -108,7 +93,6 @@ class UsageViewModel: ObservableObject {
             checkLimitNotifications(for: limits)
         } catch AppError.notAuthenticated {
             isNotAuthenticated = true
-            isSignedIn = false
             errorMessage = "Not signed in"
         } catch let error as DecodingError {
             switch error {
@@ -126,91 +110,54 @@ class UsageViewModel: ObservableObject {
         }
     }
 
-    // MARK: - HTTP helpers
-
-    // Builds a URLRequest with browser-like headers and cookies from WKWebsiteDataStore.
-    //
-    // httpShouldHandleCookies MUST be false: when true, URLSession replaces any manually-set
-    // Cookie header with its own HTTPCookieStorage (which is empty — claude.ai cookies live in
-    // WKWebsiteDataStore, not HTTPCookieStorage), causing every request to go out with no cookies.
-    private func claudeAPIRequest(for url: URL) async -> URLRequest {
-        var req = URLRequest(url: url)
-        req.httpShouldHandleCookies = false
-        req.setValue("application/json", forHTTPHeaderField: "accept")
-        req.setValue("https://claude.ai", forHTTPHeaderField: "origin")
-        req.setValue("https://claude.ai/", forHTTPHeaderField: "referer")
-        req.setValue(
-            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
-            forHTTPHeaderField: "user-agent")
-        if let cookie = await claudeCookieHeader() {
-            req.setValue(cookie, forHTTPHeaderField: "cookie")
-        }
-        return req
-    }
-
-    private func claudeCookieHeader() async -> String? {
-        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        guard !cookies.isEmpty else { return nil }
-        return HTTPCookie.requestHeaderFields(with: cookies)["Cookie"]
-    }
-
-    // MARK: - Bootstrap (org ID + email + plan label in one call)
-
-    private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
-        let url = URL(string: "https://claude.ai/api/bootstrap")!
-        let req = await claudeAPIRequest(for: url)
-        let (data, response) = try await URLSession.shared.data(for: req)
-        guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
-        if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
-        guard http.statusCode == 200 else { throw AppError.networkError }
-        guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
-            return (nil, nil, nil)
-        }
-
-        let account  = json["account"] as? [String: Any]
-        let memberships = (account?["memberships"] ?? json["memberships"]) as? [[String: Any]]
-        let firstOrg = memberships?.first?["organization"] as? [String: Any]
-
-        var orgId: String? = firstOrg?["uuid"] as? String
-        if orgId == nil {
-            orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
-        }
-        if orgId == nil {
-            let orgsReq = await claudeAPIRequest(for: URL(string: "https://claude.ai/api/organizations")!)
-            if let (orgsData, orgsResp) = try? await URLSession.shared.data(for: orgsReq),
-               let orgsHttp = orgsResp as? HTTPURLResponse, orgsHttp.statusCode == 200,
-               let orgs = try? JSONSerialization.jsonObject(with: orgsData) as? [[String: Any]] {
-                orgId = orgs.first?["uuid"] as? String
-            }
-        }
-
-        let email = account?["email_address"] as? String
-
-        var planLabel: String? = nil
-        if let caps = firstOrg?["capabilities"] as? [String],
-           let cap = caps.first(where: { $0.hasPrefix("claude_") }) {
-            let name = String(cap.dropFirst("claude_".count))
-            planLabel = name.prefix(1).uppercased() + name.dropFirst().lowercased()
-        }
-
-        return (orgId, email, planLabel)
-    }
-
     // MARK: - Fetch usage
 
     private func fetchUsage(orgId: String) async throws -> UsageResponse {
         let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/usage")!
-        let req = await claudeAPIRequest(for: url)
+        var req = URLRequest(url: url)
+        req.setValue("application/json", forHTTPHeaderField: "accept")
+
+        // Inject cookies from WKWebsiteDataStore (shared with browser/Claude app)
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
+        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") }
+        if let header = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
+            req.setValue(header, forHTTPHeaderField: "Cookie")
+        }
+
         let (data, response) = try await URLSession.shared.data(for: req)
         guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
         if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
         guard http.statusCode == 200 else { throw AppError.networkError }
+
         return try JSONDecoder().decode(UsageResponse.self, from: data)
     }
 
+    private func fetchUserEmail() async throws -> String? {
+        let url = URL(string: "https://claude.ai/api/bootstrap")!
+        var req = URLRequest(url: url)
+        req.setValue("application/json", forHTTPHeaderField: "accept")
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
+        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") }
+        if let header = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
+            req.setValue(header, forHTTPHeaderField: "Cookie")
+        }
+        let (data, response) = try await URLSession.shared.data(for: req)
+        guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
+        guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
+              let account = json["account"] as? [String: Any],
+              let email = account["email_address"] as? String else { return nil }
+        return email
+    }
+
     private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
         let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/prepaid/credits")!
-        let req = await claudeAPIRequest(for: url)
+        var req = URLRequest(url: url)
+        req.setValue("application/json", forHTTPHeaderField: "accept")
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
+        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") }
+        if let header = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
+            req.setValue(header, forHTTPHeaderField: "Cookie")
+        }
         let (data, response) = try await URLSession.shared.data(for: req)
         guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
         return try? JSONDecoder().decode(PrepaidCredits.self, from: data)
@@ -218,7 +165,13 @@ class UsageViewModel: ObservableObject {
 
     private func fetchOverageSpendLimit(orgId: String) async throws -> OverageSpendLimit? {
         let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/overage_spend_limit")!
-        let req = await claudeAPIRequest(for: url)
+        var req = URLRequest(url: url)
+        req.setValue("application/json", forHTTPHeaderField: "accept")
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
+        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") }
+        if let header = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
+            req.setValue(header, forHTTPHeaderField: "Cookie")
+        }
         let (data, response) = try await URLSession.shared.data(for: req)
         guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
         return try? JSONDecoder().decode(OverageSpendLimit.self, from: data)
@@ -292,11 +245,14 @@ class UsageViewModel: ObservableObject {
 
     private func checkLimitNotifications(for limits: [AgentLimit]) {
         let thresholds = [80, 95]
+
         for limit in limits {
             let key = limit.window.rawValue
             let curr = limit.usedPercent
             let prev = previousPercents[key]
             var fired = firedThresholds[key] ?? []
+
+            // Threshold warnings (80% and 95%)
             for t in thresholds {
                 let threshold = Double(t)
                 guard curr >= threshold, prev ?? threshold < threshold, !fired.contains(t) else { continue }
@@ -307,6 +263,8 @@ class UsageViewModel: ObservableObject {
                     userInfo: ["windowName": limit.window.displayName, "percent": t]
                 )
             }
+
+            // Reset detection: was high, now low
             if let prev, prev > 50, curr < 20 {
                 fired.removeAll()
                 NotificationCenter.default.post(
@@ -315,6 +273,7 @@ class UsageViewModel: ObservableObject {
                     userInfo: ["windowName": limit.window.displayName]
                 )
             }
+
             firedThresholds[key] = fired
             previousPercents[key] = curr
         }
@@ -358,3 +317,4 @@ extension Notification.Name {
     static let limitReset = Notification.Name("limitReset")
     static let openUpdateSheet = Notification.Name("openUpdateSheet")
 }
+

README.md

@@ -8,9 +8,9 @@
 
 [![macOS](https://img.shields.io/badge/macOS-13.0+-000000?style=flat&logo=apple&logoColor=white)](https://www.apple.com/macos/)
 [![Swift](https://img.shields.io/badge/Swift-5.9-F05138?style=flat&logo=swift&logoColor=white)](https://swift.org)
-[![Version](https://img.shields.io/badge/version-1.2.0-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases)
+[![Version](https://img.shields.io/badge/version-1.1.3-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases)
 [![License](https://img.shields.io/badge/license-MIT-blue?style=flat)](LICENSE)
-[![Beta](https://img.shields.io/badge/beta-1.2.1--beta.13-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases/tag/v1.2.1-beta.13) <!-- BETA_BADGE -->
+<!-- BETA_BADGE -->
 
 </div>
 

RELEASE_NOTES.md

@@ -1,10 +1,12 @@
-## What's new in v1.2.1
+## What's new in v1.1.3
 
-### Bug fixes
+### UI polish
-- Fixed the root cause of "Not signed in" errors: URLSession was silently discarding the manually-set Cookie header because `httpShouldHandleCookies` defaults to `true`, which makes URLSession replace it with its own (empty) HTTPCookieStorage — claude.ai session cookies live in WKWebsiteDataStore, not HTTPCookieStorage. Setting `httpShouldHandleCookies = false` ensures the cookies are actually sent.
+- Limit headers now read "5 Hour Limit" and "7 Day Limit"
-- Added browser-like request headers (User-Agent, Origin, Referer) matching what Claude's API expects, consistent with the working Windows implementation
+- Tapping anywhere on the blue update banner opens the update window
-- Removed background WKWebView complexity added in beta.12–13 — reverted to simple URLSession approach with correct cookie handling
+
-- Fixed login window auto-closing before the user could sign in — login window loads `/login` so auth is only detected after the actual sign-in redirect
+### Session Diary fix
-- Fixed login detection for Next.js SPA navigation using KVO on WebView URL (history.pushState doesn't trigger didFinish)
+- Burn history is persisted across app launches — the sparkline populates immediately on first open instead of requiring a manual refresh
-- Added `/api/organizations` as a final fallback for org ID resolution
+
-- Fixed Settings incorrectly showing "Signed in" after a failed refresh
+### Window sizing fixes
+- The popover now resizes correctly when switching between the main view and settings
+- Background colour no longer shows through during the resize animation

version-beta.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.2.1-beta.13",
+  "version": "1.1.3-beta.5",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.1-beta.13/ClaudeChecker.zip",
+  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.1.3-beta.5/ClaudeChecker.zip",
-  "notes": "## What's new in v1.2.1\n\n### Bug fixes\n- Fixed a timing race in the background API WebView — `refresh()` now correctly waits for the WebView to finish loading before making API calls, preventing silent failures on startup\n- Fixed usage data not loading after sign-in — API calls now run inside a persistent background WebView using the page's own fetch(), so all credentials (cookies, httpOnly tokens, etc.) are included automatically\n- Fixed \"Not signed in\" showing after login — the background WebView is now reloaded after sign-in to pick up the new session before the first data refresh\n- Fixed \"Not signed in\" showing incorrectly on launch when the session was already active\n- Sign-in state is now detected immediately from stored cookies on startup, before the first data refresh completes\n- Fixed login window auto-closing before the user could sign in — the login window now correctly loads the `/login` page so it only detects auth after the actual sign-in redirect\n- Fixed \"No API key configured\" showing after signing out — now correctly shows \"Not signed in\" with a prompt to sign in\n- Added `/api/organizations` as a final fallback for org ID resolution when the bootstrap API response doesn't include it\n- Fixed Settings incorrectly showing \"Signed in\" after a failed refresh — sign-in state now resets when authentication fails\n- Rewrote login detection to use KVO on the WebView URL — correctly detects auth for Next.js SPA navigation (history.pushState) that doesn't trigger didFinish"
+  "notes": "## What's new in v1.1.3\n\n### UI polish\n- Limit headers now read \"5 Hour Limit\" and \"7 Day Limit\" instead of \"5hr\"\n- Tapping anywhere on the blue update banner opens the update window\n\n### Session Diary fix\n- Burn history is persisted across app launches \u2014 the sparkline populates immediately on first open instead of requiring a manual refresh\n\n### Window sizing fixes\n- The popover now resizes correctly when switching between the main view and settings\n- Background colour no longer shows through during the resize animation"
-}
+}

version-windows-beta.json

@@ -1,5 +1,5 @@
-{
+{
-  "version": "0.0.1-beta.49",
+  "version": "0.0.0",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/win-v0.0.1-beta.49/ClaudeChecker-Windows.zip",
+  "url": "",
-  "notes": "## What's new in beta.36\r\n\r\n### Bug fixes\r\n- Settings no longer incorrectly shows \"Not signed in\" when limits are working\r\n- Session Diary now shows correctly after the first successful refresh\r\n- Extra Usage Credits section now restored from cache on startup\r\n- Plan name, overage, and prepaid credits are now cached and shown immediately on launch\r\n- App now loads cached state instantly on startup before the background refresh completes"
+  "notes": ""
-}
+}

version-windows.json

@@ -0,0 +1,5 @@
+{
+  "version": "0.0.0",
+  "url": "",
+  "notes": ""
+}

version.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.2.0",
+  "version": "1.1.3",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.0/ClaudeChecker.zip",
+  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.1.3/ClaudeChecker.zip",
-  "notes": "## What's new in v1.2.0\n\n### Bug fixes\n- App now works for all users — org ID is fetched dynamically from the API instead of being hardcoded\n- Plan name (e.g. Pro, Max) now updates correctly on every refresh\n\n### Improvements\n- Plan name is read from the API rather than hardcoded\n- Bootstrap API call consolidated — org ID, email, and plan name fetched in a single request per refresh\n- Main panel no longer scrolls — popover auto-sizes to fit content\n- Session Diary card redesigned — sample count and avg burn rate shown left/right above the sparkline, Claude header removed"
+  "notes": "## What's new in v1.1.3\n\n### UI polish\n- Limit headers now read \"5 Hour Limit\" and \"7 Day Limit\"\n- Tapping anywhere on the blue update banner opens the update window\n\n### Session Diary fix\n- Burn history is persisted across app launches — the sparkline populates immediately on first open instead of requiring a manual refresh\n\n### Window sizing fixes\n- The popover now resizes correctly when switching between the main view and settings\n- Background colour no longer shows through during the resize animation"
 }

windows/App.xaml

@@ -0,0 +1,102 @@
+<Application x:Class="ClaudeCheckerWindows.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             ShutdownMode="OnExplicitShutdown">
+    <Application.Resources>
+        <SolidColorBrush x:Key="BackgroundBrush"    Color="#1C1C1E"/>
+        <SolidColorBrush x:Key="CardBrush"          Color="#2C2C2E"/>
+        <SolidColorBrush x:Key="AccentBrush"        Color="#F97316"/>
+        <SolidColorBrush x:Key="SecondaryBrush"     Color="#888888"/>
+        <SolidColorBrush x:Key="BorderBrush"        Color="#38383A"/>
+        <SolidColorBrush x:Key="BlueBrush"          Color="#3B82F6"/>
+
+        <Style x:Key="HeaderText" TargetType="TextBlock">
+            <Setter Property="FontSize"   Value="10"/>
+            <Setter Property="FontWeight" Value="SemiBold"/>
+            <Setter Property="Foreground" Value="{StaticResource SecondaryBrush}"/>
+        </Style>
+
+        <Style x:Key="IconButton" TargetType="Button">
+            <Setter Property="Background"  Value="Transparent"/>
+            <Setter Property="BorderBrush" Value="#33FFFFFF"/>
+            <Setter Property="BorderThickness" Value="0.5"/>
+            <Setter Property="Foreground"  Value="{StaticResource SecondaryBrush}"/>
+            <Setter Property="Width"       Value="26"/>
+            <Setter Property="Height"      Value="26"/>
+            <Setter Property="Cursor"      Value="Hand"/>
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="Button">
+                        <Border Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}"
+                                BorderThickness="{TemplateBinding BorderThickness}"
+                                CornerRadius="5">
+                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Setter Property="Background" Value="#1AFFFFFF"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+
+        <Style x:Key="PrimaryButton" TargetType="Button">
+            <Setter Property="Background"  Value="{StaticResource BlueBrush}"/>
+            <Setter Property="Foreground"  Value="White"/>
+            <Setter Property="BorderThickness" Value="0"/>
+            <Setter Property="Padding"     Value="14,6"/>
+            <Setter Property="FontSize"    Value="12"/>
+            <Setter Property="FontWeight"  Value="SemiBold"/>
+            <Setter Property="Cursor"      Value="Hand"/>
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="Button">
+                        <Border Background="{TemplateBinding Background}" CornerRadius="6"
+                                Padding="{TemplateBinding Padding}">
+                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Setter Property="Background" Value="#2563EB"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+
+        <Style x:Key="SmallButton" TargetType="Button">
+            <Setter Property="Background"    Value="Transparent"/>
+            <Setter Property="BorderBrush"   Value="#33FFFFFF"/>
+            <Setter Property="BorderThickness" Value="0.5"/>
+            <Setter Property="Foreground"    Value="{StaticResource SecondaryBrush}"/>
+            <Setter Property="Padding"       Value="8,4"/>
+            <Setter Property="FontSize"      Value="11"/>
+            <Setter Property="Cursor"        Value="Hand"/>
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="Button">
+                        <Border Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}"
+                                BorderThickness="{TemplateBinding BorderThickness}"
+                                CornerRadius="5" Padding="{TemplateBinding Padding}">
+                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Setter Property="Background" Value="#1AFFFFFF"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+
+        <Style TargetType="ScrollViewer">
+            <Setter Property="VerticalScrollBarVisibility" Value="Hidden"/>
+        </Style>
+    </Application.Resources>
+</Application>

windows/App.xaml.cs

@@ -0,0 +1,136 @@
+using System;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Threading;
+using Forms = System.Windows.Forms;
+
+namespace ClaudeCheckerWindows;
+
+public partial class App : Application
+{
+    public static UsageViewModel ViewModel { get; } = new();
+    public static UpdateManager  Updater   { get; } = new();
+
+    private Forms.NotifyIcon? _tray;
+    private PopupWindow?      _popup;
+    private DispatcherTimer?  _timer;
+
+    protected override void OnStartup(StartupEventArgs e)
+    {
+        base.OnStartup(e);
+        SetupTray();
+        ScheduleTimer(ViewModel.RefreshInterval);
+
+        _ = Task.Run(async () =>
+        {
+            await Task.Delay(1000);
+            await ViewModel.RefreshAsync();
+            await Updater.CheckForUpdatesAsync();
+        });
+    }
+
+    private void SetupTray()
+    {
+        _tray = new Forms.NotifyIcon
+        {
+            Text    = "ClaudeChecker",
+            Visible = true,
+            Icon    = LoadIcon(),
+        };
+
+        _tray.MouseClick += (_, e) =>
+        {
+            if (e.Button == Forms.MouseButtons.Left)
+                Dispatcher.InvokeAsync(TogglePopup);
+        };
+
+        _tray.ContextMenuStrip = BuildContextMenu();
+
+        ViewModel.PropertyChanged += (_, _) => UpdateTrayText();
+        Updater.PropertyChanged   += (_, _) => UpdateTrayText();
+    }
+
+    private static System.Drawing.Icon LoadIcon()
+    {
+        try { return new System.Drawing.Icon("Assets/icon.ico"); }
+        catch { return System.Drawing.SystemIcons.Application; }
+    }
+
+    private Forms.ContextMenuStrip BuildContextMenu()
+    {
+        var menu = new Forms.ContextMenuStrip();
+        menu.Items.Add("Show ClaudeChecker", null, (_, _) => Dispatcher.InvokeAsync(ShowPopup));
+        menu.Items.Add(new Forms.ToolStripSeparator());
+        menu.Items.Add("Quit", null, (_, _) => Dispatcher.InvokeAsync(Quit));
+        return menu;
+    }
+
+    private void TogglePopup()
+    {
+        if (_popup == null || !_popup.IsVisible)
+            ShowPopup();
+        else
+            _popup.Hide();
+    }
+
+    private void ShowPopup()
+    {
+        if (_popup == null)
+        {
+            _popup = new PopupWindow();
+            _popup.Closed += (_, _) => _popup = null;
+        }
+        PositionPopup();
+        _popup.Show();
+        _popup.Activate();
+    }
+
+    private void PositionPopup()
+    {
+        if (_popup == null) return;
+        var workArea = SystemParameters.WorkArea;
+        _popup.Left = workArea.Right  - _popup.Width  - 8;
+        _popup.Top  = workArea.Bottom - _popup.Height - 8;
+    }
+
+    public void ScheduleTimer(int seconds)
+    {
+        _timer?.Stop();
+        _timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(seconds) };
+        _timer.Tick += async (_, _) =>
+        {
+            await ViewModel.RefreshAsync();
+            await Updater.CheckForUpdatesAsync();
+        };
+        _timer.Start();
+    }
+
+    private void UpdateTrayText()
+    {
+        if (_tray == null) return;
+        var limits = ViewModel.Limits;
+        if (ViewModel.ShowInTaskbar && limits.Count >= 2)
+        {
+            var fh = limits.Find(l => l.Window == WindowKind.FiveHour);
+            var sd = limits.Find(l => l.Window == WindowKind.SevenDay);
+            if (fh != null && sd != null && fh.IsLive)
+            {
+                _tray.Text = $"ClaudeChecker  {(int)fh.UsedPercent}%  {(int)sd.UsedPercent}%";
+                return;
+            }
+        }
+        _tray.Text = "ClaudeChecker";
+    }
+
+    private void Quit()
+    {
+        _tray?.Dispose();
+        Shutdown();
+    }
+
+    protected override void OnExit(ExitEventArgs e)
+    {
+        _tray?.Dispose();
+        base.OnExit(e);
+    }
+}

windows/AppSettings.cs

@@ -0,0 +1,43 @@
+using System;
+using System.IO;
+using System.Text.Json;
+
+namespace ClaudeCheckerWindows;
+
+public class AppSettings
+{
+    public string CookieStore     { get; set; } = "";
+    public string BurnHistory     { get; set; } = "";
+    public int    RefreshInterval { get; set; } = 120;
+    public bool   ShowInTaskbar   { get; set; } = true;
+    public bool   BetaChannel     { get; set; } = false;
+
+    private static readonly string FilePath = Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+        "ClaudeChecker", "settings.json");
+
+    private static AppSettings? _instance;
+    public static AppSettings Default => _instance ??= Load();
+
+    private static AppSettings Load()
+    {
+        try
+        {
+            if (File.Exists(FilePath))
+                return JsonSerializer.Deserialize<AppSettings>(File.ReadAllText(FilePath)) ?? new();
+        }
+        catch { }
+        return new();
+    }
+
+    public void Save()
+    {
+        try
+        {
+            Directory.CreateDirectory(Path.GetDirectoryName(FilePath)!);
+            File.WriteAllText(FilePath, JsonSerializer.Serialize(this,
+                new JsonSerializerOptions { WriteIndented = true }));
+        }
+        catch { }
+    }
+}

windows/ClaudeCheckerWindows.csproj

@@ -0,0 +1,34 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <AssemblyName>ClaudeChecker</AssemblyName>
+    <RootNamespace>ClaudeCheckerWindows</RootNamespace>
+    <ApplicationIcon>Assets\icon.ico</ApplicationIcon>
+    <Version>1.0.0</Version>
+    <Platforms>x64</Platforms>
+  </PropertyGroup>
+
+  <!-- WinForms referenced explicitly so NotifyIcon is available without polluting global namespace -->
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.WindowsDesktop.App.WindowsForms"/>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2651.64"/>
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Assets\icon.ico">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="Assets\icon.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

windows/Controls/GaugeControl.cs

@@ -0,0 +1,84 @@
+using Brush = System.Windows.Media.Brush;
+using Pen   = System.Windows.Media.Pen;
+using Point = System.Windows.Point;
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Media;
+
+namespace ClaudeCheckerWindows.Controls;
+
+public class GaugeControl : FrameworkElement
+{
+    public static readonly DependencyProperty PercentProperty =
+        DependencyProperty.Register(nameof(Percent), typeof(double), typeof(GaugeControl),
+            new FrameworkPropertyMetadata(0.0, FrameworkPropertyMetadataOptions.AffectsRender));
+
+    public static readonly DependencyProperty AccentProperty =
+        DependencyProperty.Register(nameof(Accent), typeof(Brush), typeof(GaugeControl),
+            new FrameworkPropertyMetadata(Brushes.Orange, FrameworkPropertyMetadataOptions.AffectsRender));
+
+    public double Percent { get => (double)GetValue(PercentProperty); set => SetValue(PercentProperty, value); }
+    public Brush  Accent  { get => (Brush)GetValue(AccentProperty);   set => SetValue(AccentProperty, value); }
+
+    private const double StartAngleDeg = 135;
+    private const double SweepDeg      = 270;
+    private const double StrokeWidth   = 6;
+
+    protected override void OnRender(DrawingContext dc)
+    {
+        var cx     = RenderSize.Width  / 2;
+        var cy     = RenderSize.Height / 2;
+        var radius = Math.Min(cx, cy) - StrokeWidth / 2 - 1;
+
+        DrawArc(dc, cx, cy, radius, StartAngleDeg, SweepDeg,
+            new Pen(new SolidColorBrush(Color.FromArgb(28, 255, 255, 255)), StrokeWidth));
+
+        if (Percent > 0)
+            DrawArc(dc, cx, cy, radius, StartAngleDeg, SweepDeg * (Percent / 100.0),
+                new Pen(Accent, StrokeWidth));
+
+        var dpi = VisualTreeHelper.GetDpi(this).PixelsPerDip;
+
+        var pctText = new FormattedText(
+            $"{(int)Math.Round(Percent)}%",
+            CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
+            new Typeface(new FontFamily("Segoe UI"), FontStyles.Normal, FontWeights.Bold, FontStretches.Normal),
+            14, Brushes.White, dpi);
+        dc.DrawText(pctText, new Point(cx - pctText.Width / 2, cy - pctText.Height - 1));
+
+        var sub = new FormattedText(
+            "Updated\nnow",
+            CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
+            new Typeface("Segoe UI"), 7,
+            new SolidColorBrush(Color.FromRgb(0x88, 0x88, 0x88)), dpi)
+        {
+            TextAlignment = TextAlignment.Center
+        };
+        dc.DrawText(sub, new Point(cx - sub.Width / 2, cy + 2));
+    }
+
+    private static void DrawArc(DrawingContext dc, double cx, double cy, double r,
+        double startDeg, double sweepDeg, Pen pen)
+    {
+        if (sweepDeg <= 0) return;
+        var start   = PointOnCircle(cx, cy, r, startDeg);
+        var end     = PointOnCircle(cx, cy, r, startDeg + sweepDeg);
+        var isLarge = sweepDeg > 180;
+
+        var geo = new StreamGeometry();
+        using (var ctx = geo.Open())
+        {
+            ctx.BeginFigure(start, false, false);
+            ctx.ArcTo(end, new Size(r, r), 0, isLarge, SweepDirection.Clockwise, true, false);
+        }
+        geo.Freeze();
+        dc.DrawGeometry(null, pen, geo);
+    }
+
+    private static Point PointOnCircle(double cx, double cy, double r, double deg)
+    {
+        var rad = deg * Math.PI / 180;
+        return new Point(cx + r * Math.Cos(rad), cy + r * Math.Sin(rad));
+    }
+}

windows/Controls/SparklineControl.cs

@@ -0,0 +1,60 @@
+using Point = System.Windows.Point;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Media;
+
+namespace ClaudeCheckerWindows.Controls;
+
+public class SparklineControl : FrameworkElement
+{
+    public static readonly DependencyProperty DataProperty =
+        DependencyProperty.Register(nameof(Data), typeof(IList<double>), typeof(SparklineControl),
+            new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.AffectsRender));
+
+    public static readonly DependencyProperty LineColorProperty =
+        DependencyProperty.Register(nameof(LineColor), typeof(Color), typeof(SparklineControl),
+            new FrameworkPropertyMetadata(Colors.Orange, FrameworkPropertyMetadataOptions.AffectsRender));
+
+    public IList<double>? Data      { get => (IList<double>?)GetValue(DataProperty); set => SetValue(DataProperty, value); }
+    public Color          LineColor { get => (Color)GetValue(LineColorProperty);      set => SetValue(LineColorProperty, value); }
+
+    protected override void OnRender(DrawingContext dc)
+    {
+        var data = Data;
+        if (data == null || data.Count < 1) return;
+
+        var plot = data.Count == 1 ? new[] { data[0], data[0] } : [.. data];
+
+        var w    = RenderSize.Width;
+        var h    = RenderSize.Height;
+        var minV = double.MaxValue;
+        var maxV = double.MinValue;
+        foreach (var v in plot) { if (v < minV) minV = v; if (v > maxV) maxV = v; }
+        var range = System.Math.Max(maxV - minV, 1);
+
+        Point Pt(int i) => new(
+            i / (double)(plot.Length - 1) * w,
+            h - (plot[i] - minV) / range * (h - 6) - 3);
+
+        var fill = new StreamGeometry();
+        using (var ctx = fill.Open())
+        {
+            ctx.BeginFigure(new Point(0, h), true, true);
+            for (var i = 0; i < plot.Length; i++) ctx.LineTo(Pt(i), true, false);
+            ctx.LineTo(new Point(w, h), true, false);
+        }
+        fill.Freeze();
+        dc.DrawGeometry(new SolidColorBrush(Color.FromArgb(26, LineColor.R, LineColor.G, LineColor.B)), null, fill);
+
+        var line = new StreamGeometry();
+        using (var ctx = line.Open())
+        {
+            ctx.BeginFigure(Pt(0), false, false);
+            for (var i = 1; i < plot.Length; i++) ctx.LineTo(Pt(i), true, false);
+        }
+        line.Freeze();
+        dc.DrawGeometry(null,
+            new System.Windows.Media.Pen(new SolidColorBrush(LineColor), 1.5) { LineJoin = PenLineJoin.Round },
+            line);
+    }
+}

windows/GlobalUsings.cs

@@ -0,0 +1,9 @@
+// Global aliases to resolve ambiguities between System.Windows.* and System.Drawing.*
+global using Application  = System.Windows.Application;
+global using Brushes      = System.Windows.Media.Brushes;
+global using Color        = System.Windows.Media.Color;
+global using FlowDirection = System.Windows.FlowDirection;
+global using FontFamily   = System.Windows.Media.FontFamily;
+global using Orientation  = System.Windows.Controls.Orientation;
+global using ProgressBar  = System.Windows.Controls.ProgressBar;
+global using Size         = System.Windows.Size;

windows/LoginWindow.xaml

@@ -0,0 +1,42 @@
+<Window x:Class="ClaudeCheckerWindows.LoginWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:wv2="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
+        Title="Sign in to claude.ai"
+        Width="520" Height="680"
+        WindowStartupLocation="CenterOwner"
+        Background="#1C1C1E">
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="Auto"/>
+        </Grid.RowDefinitions>
+
+        <Border Grid.Row="0" Background="#2C2C2E" Padding="16,12">
+            <StackPanel>
+                <TextBlock Text="Sign in to claude.ai" FontSize="14" FontWeight="SemiBold"
+                           Foreground="White"/>
+                <TextBlock Text="Sign in below. ClaudeChecker will save your session cookies to fetch usage data."
+                           FontSize="11" Foreground="#888888" TextWrapping="Wrap" Margin="0,4,0,0"/>
+            </StackPanel>
+        </Border>
+
+        <wv2:WebView2 x:Name="Browser" Grid.Row="1"/>
+
+        <Border Grid.Row="2" Background="#2C2C2E" Padding="16,10">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="Auto"/>
+                </Grid.ColumnDefinitions>
+                <TextBlock x:Name="StatusText" FontSize="11" Foreground="#888888"
+                           VerticalAlignment="Center" Text="Waiting for sign-in…"/>
+                <Button Grid.Column="1" Content="Done — I'm signed in"
+                        Style="{StaticResource PrimaryButton}" Click="Done_Click"
+                        x:Name="DoneButton" IsEnabled="False"/>
+            </Grid>
+        </Border>
+    </Grid>
+</Window>

windows/LoginWindow.xaml.cs

@@ -0,0 +1,66 @@
+using Microsoft.Web.WebView2.Core;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace ClaudeCheckerWindows;
+
+public partial class LoginWindow : Window
+{
+    public LoginWindow()
+    {
+        InitializeComponent();
+        Loaded += async (_, _) => await InitBrowserAsync();
+    }
+
+    private async Task InitBrowserAsync()
+    {
+        var env = await CoreWebView2Environment.CreateAsync(userDataFolder:
+            System.IO.Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+                "ClaudeChecker", "WebView2"));
+
+        await Browser.EnsureCoreWebView2Async(env);
+        Browser.CoreWebView2.Navigate("https://claude.ai");
+
+        Browser.CoreWebView2.NavigationCompleted += async (_, e) =>
+        {
+            if (!e.IsSuccess) return;
+            var uri = Browser.CoreWebView2.Source;
+            if (!uri.Contains("claude.ai")) return;
+
+            var cookies = await Browser.CoreWebView2.CookieManager.GetCookiesAsync("https://claude.ai");
+            var signedIn = cookies.Any(c =>
+                c.Name.Equals("sessionKey", StringComparison.OrdinalIgnoreCase) ||
+                c.Name.StartsWith("sk-ant", StringComparison.OrdinalIgnoreCase));
+
+            await Dispatcher.InvokeAsync(() =>
+            {
+                DoneButton.IsEnabled = !uri.Contains("/login") && !uri.Contains("/signin");
+                StatusText.Text = signedIn
+                    ? "Signed in — click Done to continue."
+                    : "Complete sign-in, then click Done.";
+            });
+
+            // Auto-close only on explicit post-login redirects, not on initial load
+            if (signedIn && (uri.Contains("/chats") || uri.Contains("/new")))
+            {
+                await SaveAndClose(cookies);
+            }
+        };
+    }
+
+    private async void Done_Click(object sender, RoutedEventArgs e)
+    {
+        var cookies = await Browser.CoreWebView2.CookieManager.GetCookiesAsync("https://claude.ai");
+        await SaveAndClose(cookies);
+    }
+
+    private async Task SaveAndClose(IReadOnlyList<CoreWebView2Cookie> cookies)
+    {
+        UsageViewModel.SaveCookies(cookies);
+        await Dispatcher.InvokeAsync(() => DialogResult = true);
+    }
+}

windows/Models.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace ClaudeCheckerWindows;
+
+public enum WindowKind { FiveHour, SevenDay }
+
+public class AgentLimit
+{
+    public WindowKind Window { get; init; }
+    public double UsedPercent { get; set; }
+    public string TimeRemaining { get; set; } = "";
+    public DateTime ResetDate { get; set; }
+    public double BurnRate { get; set; }
+    public List<double> BurnHistory { get; set; } = [];
+    public bool IsLive { get; set; }
+    public string UsageLabel => UsedPercent switch { < 33 => "low", < 66 => "med", _ => "high" };
+    public string WindowLabel => Window == WindowKind.FiveHour ? "5 HOUR LIMIT" : "7 DAY LIMIT";
+}
+
+public class UsageResponse
+{
+    [JsonPropertyName("claude_ai_default_5h")] public WindowData? FiveHour { get; set; }
+    [JsonPropertyName("claude_ai_default")]    public WindowData? SevenDay  { get; set; }
+}
+
+public class WindowData
+{
+    [JsonPropertyName("utilization")] public double Utilization { get; set; }
+    [JsonPropertyName("resets_at")]   public string? ResetsAt   { get; set; }
+}
+
+public class BootstrapResponse
+{
+    [JsonPropertyName("account")] public AccountInfo? Account { get; set; }
+}
+
+public class AccountInfo
+{
+    [JsonPropertyName("email_address")] public string? EmailAddress { get; set; }
+}
+
+public class OverageSpendLimit
+{
+    [JsonPropertyName("monthly_credit_limit")] public double? MonthlyCreditLimit { get; set; }
+    [JsonPropertyName("used_credits")]         public double? UsedCredits         { get; set; }
+    [JsonPropertyName("currency")]             public string? Currency            { get; set; }
+}
+
+public class PrepaidCredits
+{
+    [JsonPropertyName("amount")]   public double? Amount   { get; set; }
+    [JsonPropertyName("currency")] public string? Currency { get; set; }
+}
+
+public class VersionInfo
+{
+    [JsonPropertyName("version")] public string  Version { get; set; } = "";
+    [JsonPropertyName("url")]     public string  Url     { get; set; } = "";
+    [JsonPropertyName("notes")]   public string? Notes   { get; set; }
+}

windows/PopupWindow.xaml

@@ -0,0 +1,251 @@
+<Window x:Class="ClaudeCheckerWindows.PopupWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:ctrl="clr-namespace:ClaudeCheckerWindows.Controls"
+        Title="ClaudeChecker"
+        Width="480"
+        SizeToContent="Height"
+        WindowStyle="None"
+        AllowsTransparency="True"
+        Background="Transparent"
+        ShowInTaskbar="False"
+        Topmost="True"
+        ResizeMode="NoResize">
+
+    <Border Background="{StaticResource BackgroundBrush}"
+            CornerRadius="12"
+            BorderBrush="{StaticResource BorderBrush}"
+            BorderThickness="0.5">
+        <Border.Effect>
+            <DropShadowEffect BlurRadius="24" ShadowDepth="4" Opacity="0.5" Color="Black"/>
+        </Border.Effect>
+
+        <Grid>
+            <!-- Main panel -->
+            <StackPanel x:Name="MainPanel">
+
+                <!-- Header -->
+                <Grid Margin="16,11">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="Auto"/>
+                        <ColumnDefinition Width="*"/>
+                        <ColumnDefinition Width="Auto"/>
+                        <ColumnDefinition Width="6"/>
+                        <ColumnDefinition Width="Auto"/>
+                    </Grid.ColumnDefinitions>
+
+                    <Image Grid.Column="0" Width="24" Height="24"
+                           Source="Assets/icon.png" RenderOptions.BitmapScalingMode="HighQuality"/>
+
+                    <TextBlock Grid.Column="1" Text="ClaudeChecker"
+                               FontSize="14" FontWeight="SemiBold" Foreground="White"
+                               VerticalAlignment="Center" Margin="10,0,0,0"/>
+
+                    <Button Grid.Column="2" Style="{StaticResource IconButton}"
+                            Click="Settings_Click" x:Name="SettingsButton">
+                        <TextBlock Text="⚙" FontSize="11" Foreground="{StaticResource SecondaryBrush}"/>
+                    </Button>
+                    <Button Grid.Column="4" Style="{StaticResource IconButton}"
+                            Click="Close_Click">
+                        <TextBlock Text="✕" FontSize="11" Foreground="{StaticResource SecondaryBrush}"/>
+                    </Button>
+                </Grid>
+
+                <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}" Opacity="0.4"/>
+
+                <!-- Update banner -->
+                <Border x:Name="UpdateBanner" Visibility="Collapsed"
+                        Background="#0A3B82F6" Cursor="Hand" MouseLeftButtonUp="UpdateBanner_Click">
+                    <Grid Margin="16,10">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="Auto"/>
+                            <ColumnDefinition Width="*"/>
+                            <ColumnDefinition Width="Auto"/>
+                        </Grid.ColumnDefinitions>
+                        <TextBlock Grid.Column="0" Text="⬇" FontSize="14"
+                                   Foreground="{StaticResource BlueBrush}" VerticalAlignment="Center"/>
+                        <StackPanel Grid.Column="1" Margin="10,0">
+                            <TextBlock x:Name="UpdateBannerTitle" FontSize="12" FontWeight="SemiBold" Foreground="White"/>
+                            <TextBlock Text="Tap to view what's new &amp; install."
+                                       FontSize="11" Foreground="{StaticResource SecondaryBrush}"/>
+                        </StackPanel>
+                        <Button Grid.Column="2" Content="Update"
+                                Style="{StaticResource SmallButton}"
+                                Background="{StaticResource BlueBrush}"
+                                Foreground="White" Click="UpdateBanner_Click"/>
+                    </Grid>
+                    <Border.Effect>
+                        <DropShadowEffect ShadowDepth="0" BlurRadius="0" Opacity="0"/>
+                    </Border.Effect>
+                </Border>
+                <Rectangle x:Name="UpdateBannerDiv" Height="0.5" Fill="{StaticResource BorderBrush}"
+                           Opacity="0.3" Visibility="Collapsed"/>
+
+                <!-- Limit cards -->
+                <ScrollViewer VerticalScrollBarVisibility="Hidden" MaxHeight="600">
+                    <StackPanel x:Name="CardsPanel" Margin="0,0,0,4"/>
+                </ScrollViewer>
+
+                <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}" Opacity="0.3"/>
+
+                <!-- Footer -->
+                <Grid Margin="16,9">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*"/>
+                        <ColumnDefinition Width="Auto"/>
+                        <ColumnDefinition Width="8"/>
+                        <ColumnDefinition Width="Auto"/>
+                    </Grid.ColumnDefinitions>
+                    <TextBlock x:Name="LastUpdatedText" Grid.Column="0"
+                               FontSize="10" Foreground="#60888888" VerticalAlignment="Center"/>
+                    <ProgressBar x:Name="LoadingBar" Grid.Column="1"
+                                 IsIndeterminate="True" Width="14" Height="14"
+                                 Visibility="Collapsed" Style="{x:Null}"/>
+                    <Button Grid.Column="3" Content="↻  Refresh"
+                            Style="{StaticResource SmallButton}" Click="Refresh_Click"/>
+                </Grid>
+            </StackPanel>
+
+            <!-- Settings panel -->
+            <Border x:Name="SettingsPanel" Visibility="Collapsed"
+                    Background="{StaticResource BackgroundBrush}" CornerRadius="12">
+                <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="700">
+                    <StackPanel Margin="16">
+
+                        <Button Content="← Back" HorizontalAlignment="Left"
+                                Style="{StaticResource SmallButton}"
+                                BorderThickness="0" Foreground="{StaticResource BlueBrush}"
+                                Click="BackFromSettings_Click" Margin="0,0,0,12"/>
+
+                        <TextBlock Text="Settings" FontSize="16" FontWeight="SemiBold"
+                                   Foreground="White" Margin="0,0,0,16"/>
+
+                        <!-- Auth -->
+                        <TextBlock Text="🔐  Authentication" Style="{StaticResource HeaderText}" Margin="0,0,0,8"/>
+                        <StackPanel x:Name="AuthPanel" Margin="0,0,0,8"/>
+                        <TextBlock Text="Your session is stored locally and persists across restarts."
+                                   FontSize="11" Foreground="{StaticResource SecondaryBrush}"
+                                   TextWrapping="Wrap" Margin="0,0,0,8"/>
+                        <StackPanel Orientation="Horizontal" Margin="0,0,0,16">
+                            <Button x:Name="SignInButton" Content="Sign In"
+                                    Style="{StaticResource SmallButton}" Click="SignIn_Click" Margin="0,0,8,0"/>
+                            <Button x:Name="SignOutButton" Content="Sign Out"
+                                    Style="{StaticResource SmallButton}" Click="SignOut_Click"
+                                    Foreground="#EF4444" Visibility="Collapsed"/>
+                        </StackPanel>
+
+                        <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}" Margin="0,0,0,16"/>
+
+                        <!-- Beta channel -->
+                        <TextBlock Text="📡  Update channel" Style="{StaticResource HeaderText}" Margin="0,0,0,8"/>
+                        <Grid Margin="0,0,0,16">
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*"/>
+                                <ColumnDefinition Width="Auto"/>
+                            </Grid.ColumnDefinitions>
+                            <StackPanel>
+                                <TextBlock Text="Beta updates" FontSize="12" Foreground="White"/>
+                                <TextBlock Text="Receive early access builds — may be less stable"
+                                           FontSize="11" Foreground="{StaticResource SecondaryBrush}"/>
+                            </StackPanel>
+                            <CheckBox Grid.Column="1" x:Name="BetaToggle" VerticalAlignment="Center"
+                                      Checked="BetaToggle_Changed" Unchecked="BetaToggle_Changed"/>
+                        </Grid>
+
+                        <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}" Margin="0,0,0,16"/>
+
+                        <!-- Refresh interval -->
+                        <TextBlock Text="⏱  Auto-refresh interval" Style="{StaticResource HeaderText}" Margin="0,0,0,8"/>
+                        <ComboBox x:Name="RefreshPicker" SelectionChanged="RefreshPicker_Changed"
+                                  Margin="0,0,0,16" FontSize="12"/>
+
+                        <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}" Margin="0,0,0,16"/>
+
+                        <!-- About -->
+                        <Grid>
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto"/>
+                                <ColumnDefinition Width="*"/>
+                                <ColumnDefinition Width="Auto"/>
+                            </Grid.ColumnDefinitions>
+                            <Image Width="36" Height="36" Source="Assets/icon.png"
+                                   RenderOptions.BitmapScalingMode="HighQuality" Margin="0,0,12,0"/>
+                            <StackPanel Grid.Column="1" VerticalAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <TextBlock Text="ClaudeChecker" FontSize="12" FontWeight="SemiBold" Foreground="White"/>
+                                    <Border Background="#0FFFFFFF" CornerRadius="4" Margin="6,0,0,0" Padding="5,1">
+                                        <TextBlock x:Name="VersionLabel" FontSize="11"
+                                                   Foreground="{StaticResource SecondaryBrush}"
+                                                   FontFamily="Consolas"/>
+                                    </Border>
+                                </StackPanel>
+                                <TextBlock Text="Built by superdooper86 &amp; claude"
+                                           FontSize="11" Foreground="{StaticResource SecondaryBrush}"/>
+                            </StackPanel>
+                            <Button Grid.Column="2" x:Name="CheckUpdateButton"
+                                    Style="{StaticResource SmallButton}" Click="CheckUpdate_Click"
+                                    VerticalAlignment="Center"/>
+                        </Grid>
+
+                    </StackPanel>
+                </ScrollViewer>
+            </Border>
+
+            <!-- Update sheet -->
+            <Border x:Name="UpdatePanel" Visibility="Collapsed"
+                    Background="{StaticResource BackgroundBrush}" CornerRadius="12">
+                <StackPanel>
+                    <Grid Margin="16,12">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="*"/>
+                            <ColumnDefinition Width="Auto"/>
+                        </Grid.ColumnDefinitions>
+                        <TextBlock Text="Update ClaudeChecker" FontSize="14" FontWeight="SemiBold"
+                                   Foreground="White" VerticalAlignment="Center"/>
+                        <Button Grid.Column="1" Content="Not Now" Style="{StaticResource SmallButton}"
+                                Click="CloseUpdate_Click" x:Name="NotNowButton"/>
+                    </Grid>
+                    <Rectangle Height="0.5" Fill="{StaticResource BorderBrush}"/>
+                    <StackPanel Margin="20">
+                        <Grid Margin="0,0,0,16">
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto"/>
+                                <ColumnDefinition Width="*"/>
+                            </Grid.ColumnDefinitions>
+                            <Image Width="48" Height="48" Source="Assets/icon.png"
+                                   RenderOptions.BitmapScalingMode="HighQuality" Margin="0,0,14,0"/>
+                            <StackPanel Grid.Column="1" VerticalAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <TextBlock x:Name="CurrentVerLabel" FontSize="12" FontFamily="Consolas"
+                                               Foreground="{StaticResource SecondaryBrush}"/>
+                                    <TextBlock Text=" → " FontSize="10"
+                                               Foreground="{StaticResource SecondaryBrush}" VerticalAlignment="Center"/>
+                                    <TextBlock x:Name="NewVerLabel" FontSize="13" FontWeight="SemiBold"
+                                               FontFamily="Consolas" Foreground="{StaticResource BlueBrush}"/>
+                                </StackPanel>
+                                <TextBlock x:Name="ReleaseNotesText" FontSize="11" TextWrapping="Wrap"
+                                           Foreground="{StaticResource SecondaryBrush}" Margin="0,4,0,0"
+                                           MaxHeight="180"/>
+                            </StackPanel>
+                        </Grid>
+
+                        <TextBlock x:Name="UpdateStatusText" Foreground="{StaticResource SecondaryBrush}"
+                                   FontSize="11" TextWrapping="Wrap" TextAlignment="Center"
+                                   Visibility="Collapsed" Margin="0,0,0,10"/>
+
+                        <ProgressBar x:Name="UpdateProgress" Visibility="Collapsed"
+                                     Height="4" Margin="0,0,0,12" Foreground="{StaticResource BlueBrush}"/>
+
+                        <TextBlock Text="ClaudeChecker will download the update, replace itself, and relaunch automatically."
+                                   FontSize="11" Foreground="{StaticResource SecondaryBrush}"
+                                   TextWrapping="Wrap" TextAlignment="Center" Margin="0,0,0,12"/>
+
+                        <Button x:Name="InstallButton" Content="⬇  Install Update"
+                                Style="{StaticResource PrimaryButton}" HorizontalAlignment="Stretch"
+                                Click="Install_Click"/>
+                    </StackPanel>
+                </StackPanel>
+            </Border>
+        </Grid>
+    </Border>
+</Window>

windows/PopupWindow.xaml.cs

@@ -0,0 +1,347 @@
+using ClaudeCheckerWindows.Controls;
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Threading;
+
+namespace ClaudeCheckerWindows;
+
+public partial class PopupWindow : Window
+{
+    private static readonly UsageViewModel VM      = App.ViewModel;
+    private static readonly UpdateManager  Updater = App.Updater;
+    private readonly DispatcherTimer _clockTimer;
+    private bool _dialogOpen;
+
+    public PopupWindow()
+    {
+        InitializeComponent();
+
+        VM.PropertyChanged      += (_, e) => Dispatcher.InvokeAsync(() => OnVmChanged(e.PropertyName));
+        Updater.PropertyChanged += (_, e) => Dispatcher.InvokeAsync(() => OnUpdaterChanged(e.PropertyName));
+
+        _clockTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(5) };
+        _clockTimer.Tick += (_, _) => UpdateFooter();
+        _clockTimer.Start();
+
+        InitSettings();
+        RebuildCards();
+        UpdateBannerState();
+        UpdateFooter();
+
+        Deactivated += (_, _) => { if (!_dialogOpen) Hide(); };
+    }
+
+    // ── Card rendering ───────────────────────────────────────────────
+
+    private void RebuildCards()
+    {
+        CardsPanel.Children.Clear();
+        foreach (var limit in VM.Limits)
+            CardsPanel.Children.Add(BuildCard(limit));
+    }
+
+    private static UIElement BuildCard(AgentLimit limit)
+    {
+        var accent     = new SolidColorBrush(Color.FromRgb(0xF9, 0x73, 0x16));
+        var secondary  = (SolidColorBrush)Application.Current.Resources["SecondaryBrush"];
+
+        // Gauge
+        var gauge = new GaugeControl { Width = 76, Height = 76, Percent = limit.UsedPercent, Accent = accent };
+
+        // Live badge
+        var liveBadge = new Border
+        {
+            Background   = new SolidColorBrush(Color.FromArgb(26, 0, 200, 0)),
+            CornerRadius = new CornerRadius(4),
+            Padding      = new Thickness(6, 2, 6, 2),
+            Margin       = new Thickness(0, 0, 6, 0),
+            Visibility   = limit.IsLive ? Visibility.Visible : Visibility.Collapsed,
+            Child        = new TextBlock { Text = "Live", FontSize = 10, FontWeight = FontWeights.Medium,
+                               Foreground = new SolidColorBrush(Colors.LightGreen) }
+        };
+
+        // Usage badge
+        var usageBadge = new Border
+        {
+            Background   = new SolidColorBrush(Color.FromArgb(15, 255, 255, 255)),
+            CornerRadius = new CornerRadius(4),
+            Padding      = new Thickness(6, 2, 6, 2),
+            Child        = new TextBlock { Text = $"Usg: {limit.UsageLabel}", FontSize = 10,
+                               FontWeight = FontWeights.Medium, Foreground = secondary }
+        };
+
+        // Header row: Claude · Pro | [Live] [Usg]
+        var badgeStack = new StackPanel { Orientation = Orientation.Horizontal };
+        badgeStack.Children.Add(liveBadge);
+        badgeStack.Children.Add(usageBadge);
+
+        var nameStack = new StackPanel { Orientation = Orientation.Horizontal, VerticalAlignment = VerticalAlignment.Center };
+        nameStack.Children.Add(new TextBlock { Text = "✦", FontSize = 11, Foreground = accent, VerticalAlignment = VerticalAlignment.Center });
+        nameStack.Children.Add(new TextBlock { Text = "Claude", FontSize = 13, FontWeight = FontWeights.SemiBold,
+            Foreground = Brushes.White, Margin = new Thickness(6, 0, 0, 0), VerticalAlignment = VerticalAlignment.Center });
+        nameStack.Children.Add(new TextBlock { Text = $"·  {VM.PlanLabel}", FontSize = 11,
+            Foreground = secondary, Margin = new Thickness(6, 0, 0, 0), VerticalAlignment = VerticalAlignment.Center });
+
+        var headerRow = new Grid();
+        headerRow.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+        headerRow.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+        Grid.SetColumn(nameStack,  0);
+        Grid.SetColumn(badgeStack, 1);
+        headerRow.Children.Add(nameStack);
+        headerRow.Children.Add(badgeStack);
+
+        // Progress bar
+        var progress = new ProgressBar
+        {
+            Value = limit.UsedPercent, Maximum = 100, Height = 4,
+            Margin = new Thickness(0, 4, 0, 4),
+            Foreground = accent,
+            Background = new SolidColorBrush(Color.FromArgb(18, 255, 255, 255)),
+            BorderThickness = new Thickness(0),
+        };
+
+        // Time row
+        var timeStack = new StackPanel { Orientation = Orientation.Horizontal, VerticalAlignment = VerticalAlignment.Center };
+        timeStack.Children.Add(new TextBlock { Text = "⏱ ", FontSize = 10, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center });
+        timeStack.Children.Add(new TextBlock { Text = limit.TimeRemaining, FontSize = 12,
+            FontWeight = FontWeights.Medium, Foreground = Brushes.White, VerticalAlignment = VerticalAlignment.Center });
+
+        var resetText = new TextBlock
+        {
+            Text = $"Resets {limit.ResetDate:d MMM yyyy} at {limit.ResetDate:HH:mm}",
+            FontSize = 11, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center
+        };
+
+        var timeRow = new Grid();
+        timeRow.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+        timeRow.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+        Grid.SetColumn(timeStack,  0);
+        Grid.SetColumn(resetText,  1);
+        timeRow.Children.Add(timeStack);
+        timeRow.Children.Add(resetText);
+
+        // Sparkline
+        var sparkline = new SparklineControl
+        {
+            Height = 28, Margin = new Thickness(0, 8, 0, 0), LineColor = Color.FromRgb(0xF9, 0x73, 0x16),
+            Data = limit.BurnHistory.Count > 0 ? limit.BurnHistory : null,
+        };
+
+        // Info panel
+        var infoPanel = new StackPanel { VerticalAlignment = VerticalAlignment.Center };
+        infoPanel.Children.Add(headerRow);
+        infoPanel.Children.Add(progress);
+        infoPanel.Children.Add(timeRow);
+        infoPanel.Children.Add(sparkline);
+
+        // Card content grid
+        var cardGrid = new Grid { Margin = new Thickness(16, 12, 16, 12) };
+        cardGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+        cardGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(16, GridUnitType.Pixel) });
+        cardGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+        Grid.SetColumn(gauge,     0);
+        Grid.SetColumn(infoPanel, 2);
+        cardGrid.Children.Add(gauge);
+        cardGrid.Children.Add(infoPanel);
+
+        var card = new Border
+        {
+            Background      = (SolidColorBrush)Application.Current.Resources["CardBrush"],
+            CornerRadius    = new CornerRadius(8),
+            BorderBrush     = new SolidColorBrush(Color.FromArgb(20, 255, 255, 255)),
+            BorderThickness = new Thickness(0.5),
+            Margin          = new Thickness(8, 0, 8, 0),
+            Child           = cardGrid,
+        };
+
+        var sectionLabel = new TextBlock
+        {
+            Text   = limit.WindowLabel,
+            Style  = (Style)Application.Current.Resources["HeaderText"],
+            Margin = new Thickness(16, 10, 16, 4),
+        };
+
+        var section = new StackPanel();
+        section.Children.Add(sectionLabel);
+        section.Children.Add(card);
+        return section;
+    }
+
+    // ── State updates ────────────────────────────────────────────────
+
+    private void OnVmChanged(string? prop)
+    {
+        if (prop is nameof(UsageViewModel.Limits) or nameof(UsageViewModel.IsLoading)
+                 or nameof(UsageViewModel.LastUpdated) or nameof(UsageViewModel.ErrorMessage))
+        {
+            RebuildCards();
+            UpdateFooter();
+        }
+        if (prop is nameof(UsageViewModel.IsSignedIn) or nameof(UsageViewModel.UserEmail))
+        {
+            InitSettings();
+        }
+    }
+
+    private void OnUpdaterChanged(string? prop)
+    {
+        if (prop is nameof(UpdateManager.UpdateAvailable) or nameof(UpdateManager.LatestVersion))
+            UpdateBannerState();
+        if (prop is nameof(UpdateManager.DownloadProgress))
+            UpdateProgress.Value = Updater.DownloadProgress * 100;
+        if (prop is nameof(UpdateManager.StatusMessage))
+            UpdateStatusText.Text = Updater.StatusMessage;
+        if (prop is nameof(UpdateManager.UpdateComplete) && Updater.UpdateComplete)
+            InstallButton.Visibility = Visibility.Collapsed;
+    }
+
+    private void UpdateBannerState()
+    {
+        var visible = Updater.UpdateAvailable;
+        UpdateBanner.Visibility    = visible ? Visibility.Visible : Visibility.Collapsed;
+        UpdateBannerDiv.Visibility = visible ? Visibility.Visible : Visibility.Collapsed;
+        if (visible) UpdateBannerTitle.Text = $"Update available — v{Updater.LatestVersion}";
+    }
+
+    private void UpdateFooter()
+    {
+        if (VM.LastUpdated.HasValue)
+        {
+            var diff = DateTime.Now - VM.LastUpdated.Value;
+            LastUpdatedText.Text = diff.TotalSeconds < 10 ? "Updated just now"
+                                                          : $"Updated {(int)diff.TotalSeconds}s ago";
+        }
+        else
+        {
+            LastUpdatedText.Text = "Not yet updated";
+        }
+        LoadingBar.Visibility = VM.IsLoading ? Visibility.Visible : Visibility.Collapsed;
+    }
+
+    // ── Settings ─────────────────────────────────────────────────────
+
+    private void InitSettings()
+    {
+        VersionLabel.Text    = $"v{Updater.CurrentVersion}";
+        BetaToggle.IsChecked = Updater.BetaChannel;
+        CheckUpdateButton.Content = Updater.UpdateAvailable ? "Install" : "Check";
+
+        var intervals = new[] { ("1 min", 60), ("2 min", 120), ("3 min", 180),
+                                ("4 min", 240), ("5 min", 300), ("10 min", 600) };
+        RefreshPicker.ItemsSource        = intervals;
+        RefreshPicker.DisplayMemberPath  = "Item1";
+        var idx = Array.FindIndex(intervals, x => x.Item2 == VM.RefreshInterval);
+        RefreshPicker.SelectedIndex      = idx < 0 ? 1 : idx;
+
+        AuthPanel.Children.Clear();
+        var dot = new System.Windows.Shapes.Ellipse
+        {
+            Width = 7, Height = 7, Margin = new Thickness(0, 0, 6, 0),
+            Fill = VM.IsSignedIn ? Brushes.LimeGreen : Brushes.Orange,
+            VerticalAlignment = VerticalAlignment.Center,
+        };
+        var label = new TextBlock
+        {
+            Text = VM.IsSignedIn ? $"Signed in — {VM.UserEmail}" : "Not signed in",
+            FontSize = 13, FontWeight = FontWeights.SemiBold, Foreground = Brushes.White,
+            VerticalAlignment = VerticalAlignment.Center,
+        };
+        var authRow = new StackPanel { Orientation = Orientation.Horizontal };
+        authRow.Children.Add(dot);
+        authRow.Children.Add(label);
+        AuthPanel.Children.Add(authRow);
+
+        SignOutButton.Visibility = VM.IsSignedIn ? Visibility.Visible : Visibility.Collapsed;
+        SignInButton.Content     = VM.IsSignedIn ? "Re-authenticate" : "Sign In";
+    }
+
+    // ── Event handlers ───────────────────────────────────────────────
+
+    private void Settings_Click(object s, RoutedEventArgs e)
+    {
+        InitSettings();
+        MainPanel.Visibility     = Visibility.Collapsed;
+        SettingsPanel.Visibility = Visibility.Visible;
+        UpdatePanel.Visibility   = Visibility.Collapsed;
+    }
+
+    private void BackFromSettings_Click(object s, RoutedEventArgs e) => ShowMain();
+
+    private void ShowMain()
+    {
+        MainPanel.Visibility     = Visibility.Visible;
+        SettingsPanel.Visibility = Visibility.Collapsed;
+        UpdatePanel.Visibility   = Visibility.Collapsed;
+    }
+
+    private void Close_Click(object s, RoutedEventArgs e) => Hide();
+
+    private async void Refresh_Click(object s, RoutedEventArgs e) => await VM.RefreshAsync();
+
+    private void UpdateBanner_Click(object s, RoutedEventArgs e) => ShowUpdatePanel();
+
+    private void ShowUpdatePanel()
+    {
+        CurrentVerLabel.Text  = $"v{Updater.CurrentVersion}";
+        NewVerLabel.Text      = $"v{Updater.LatestVersion}";
+        ReleaseNotesText.Text = Updater.ReleaseNotes;
+        MainPanel.Visibility     = Visibility.Collapsed;
+        SettingsPanel.Visibility = Visibility.Collapsed;
+        UpdatePanel.Visibility   = Visibility.Visible;
+    }
+
+    private void CloseUpdate_Click(object s, RoutedEventArgs e) => ShowMain();
+
+    private async void Install_Click(object s, RoutedEventArgs e)
+    {
+        NotNowButton.Visibility     = Visibility.Collapsed;
+        UpdateStatusText.Visibility = Visibility.Visible;
+        UpdateProgress.Visibility   = Visibility.Visible;
+        await Updater.DownloadAndInstallAsync();
+    }
+
+    private async void SignIn_Click(object s, RoutedEventArgs e)
+    {
+        _dialogOpen = true;
+        var login = new LoginWindow { Owner = this };
+        if (login.ShowDialog() == true)
+        {
+            await VM.RefreshAsync();
+            InitSettings();
+        }
+        _dialogOpen = false;
+        Show();
+        Activate();
+    }
+
+    private async void SignOut_Click(object s, RoutedEventArgs e)
+    {
+        await VM.SignOutAsync();
+        InitSettings();
+    }
+
+    private void BetaToggle_Changed(object s, RoutedEventArgs e)
+    {
+        Updater.BetaChannel = BetaToggle.IsChecked == true;
+        _ = Updater.CheckForUpdatesAsync();
+    }
+
+    private void RefreshPicker_Changed(object s, SelectionChangedEventArgs e)
+    {
+        if (RefreshPicker.SelectedItem is ValueTuple<string, int> selected)
+        {
+            VM.RefreshInterval = selected.Item2;
+            ((App)Application.Current).ScheduleTimer(selected.Item2);
+        }
+    }
+
+    private async void CheckUpdate_Click(object s, RoutedEventArgs e)
+    {
+        if (Updater.UpdateAvailable) { ShowUpdatePanel(); return; }
+        CheckUpdateButton.Content = "…";
+        await Updater.CheckForUpdatesAsync();
+        CheckUpdateButton.Content = Updater.UpdateAvailable ? "Install" : "Check";
+    }
+}

windows/Properties/Settings.settings

@@ -0,0 +1,23 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)"/>
+  </Profiles>
+  <Settings>
+    <Setting Name="CookieStore" Type="System.String" Scope="User">
+      <Value Profile="(Default)"></Value>
+    </Setting>
+    <Setting Name="BurnHistory" Type="System.String" Scope="User">
+      <Value Profile="(Default)"></Value>
+    </Setting>
+    <Setting Name="RefreshInterval" Type="System.Int32" Scope="User">
+      <Value Profile="(Default)">120</Value>
+    </Setting>
+    <Setting Name="ShowInTaskbar" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
+    <Setting Name="BetaChannel" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">False</Value>
+    </Setting>
+  </Settings>
+</SettingsFile>

windows/README.md

@@ -0,0 +1,50 @@
+# ClaudeChecker for Windows
+
+A native Windows port of ClaudeChecker — a system tray app for monitoring your Claude AI usage limits in real time.
+
+## Requirements
+
+- Windows 10 / 11 (x64)
+- [.NET 8 Runtime](https://dotnet.microsoft.com/download/dotnet/8.0)
+- [WebView2 Runtime](https://developer.microsoft.com/microsoft-edge/webview2/) (usually pre-installed on Windows 11)
+
+## Building
+
+```powershell
+cd windows
+dotnet build -c Release
+```
+
+The output is a single `ClaudeChecker.exe` in `bin\Release\net8.0-windows\`.
+
+> **Assets:** You need to supply `Assets/icon.ico` and `Assets/icon.png` (128×128) before building.
+> Copy them from the macOS project's `ClaudeChecker/Assets.xcassets/AppIcon.appiconset/`.
+
+## Features
+
+- System tray icon — left-click to show/hide the popup
+- 5-hour and 7-day usage gauges with burn rate sparklines
+- Cookie-based auth via embedded WebView2 browser (sign in once, session persists)
+- Auto-refresh on a configurable interval (1–10 min)
+- Update checking against the same `version.json` / `version-beta.json` as the macOS app
+- Beta channel toggle
+- Settings panel (auth, refresh interval, update channel)
+
+## Architecture
+
+| File | Purpose |
+|---|---|
+| `App.xaml.cs` | Tray icon, popup lifecycle, refresh timer |
+| `PopupWindow.xaml/cs` | Main UI — limit cards, settings, update sheet |
+| `LoginWindow.xaml/cs` | WebView2 browser for claude.ai auth |
+| `UsageViewModel.cs` | Data fetching, cookie handling, state |
+| `UpdateManager.cs` | Version checking, download and install |
+| `Models.cs` | Data models |
+| `Controls/GaugeControl.cs` | Custom circular gauge |
+| `Controls/SparklineControl.cs` | Burn history sparkline |
+
+## Notes
+
+- Cookies are stored in user settings (via `Properties.Settings`), not the WebView2 profile, so they survive WebView2 cache clears.
+- Updates download a `.zip`, extract, and run a `.bat` script that replaces the exe after the app exits.
+- The popup positions itself in the bottom-right corner near the system tray.

windows/RELEASE_NOTES.md

@@ -0,0 +1,3 @@
+## What's new
+
+Initial Windows release.

windows/UpdateManager.cs

@@ -0,0 +1,260 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.IO.Compression;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Collections.Generic;
+using System.Windows;
+
+namespace ClaudeCheckerWindows;
+
+public class UpdateManager : INotifyPropertyChanged
+{
+    private const string StableUrl = "https://raw.githubusercontent.com/superdooper86/claudechecker/refs/heads/main/version-windows.json";
+    private const string BetaUrl   = "https://raw.githubusercontent.com/superdooper86/claudechecker/refs/heads/main/version-windows-beta.json";
+
+    private bool   _updateAvailable;
+    private string _latestVersion  = "";
+    private string _releaseNotes   = "";
+    private string _downloadUrl    = "";
+    private bool   _betaAvailable;
+    private string _latestBetaVersion = "";
+    private bool   _isDownloading;
+    private double _downloadProgress;
+    private string _statusMessage  = "";
+    private string? _updateError;
+    private bool   _updateComplete;
+
+    public bool   UpdateAvailable      { get => _updateAvailable;     set => Set(ref _updateAvailable, value); }
+    public string LatestVersion        { get => _latestVersion;       set => Set(ref _latestVersion, value); }
+    public string ReleaseNotes         { get => _releaseNotes;        set => Set(ref _releaseNotes, value); }
+    public string DownloadUrl          { get => _downloadUrl;         set => Set(ref _downloadUrl, value); }
+    public bool   BetaAvailable        { get => _betaAvailable;       set => Set(ref _betaAvailable, value); }
+    public string LatestBetaVersion    { get => _latestBetaVersion;   set => Set(ref _latestBetaVersion, value); }
+    public bool   IsDownloading        { get => _isDownloading;       set => Set(ref _isDownloading, value); }
+    public double DownloadProgress     { get => _downloadProgress;    set => Set(ref _downloadProgress, value); }
+    public string StatusMessage        { get => _statusMessage;       set => Set(ref _statusMessage, value); }
+    public string? UpdateError         { get => _updateError;         set => Set(ref _updateError, value); }
+    public bool   UpdateComplete       { get => _updateComplete;      set => Set(ref _updateComplete, value); }
+
+    private bool _betaChannel;
+    public bool BetaChannel
+    {
+        get => _betaChannel;
+        set
+        {
+            Set(ref _betaChannel, value);
+            AppSettings.Default.BetaChannel = value;
+            AppSettings.Default.Save();
+        }
+    }
+
+    public string CurrentVersion =>
+        System.Reflection.Assembly.GetExecutingAssembly()
+              .GetName().Version?.ToString(3) ?? "1.0.0";
+
+    public UpdateManager()
+    {
+        _betaChannel = AppSettings.Default.BetaChannel;
+    }
+
+    public async Task CheckForUpdatesAsync()
+    {
+        using var http = new HttpClient();
+        http.DefaultRequestHeaders.CacheControl =
+            new System.Net.Http.Headers.CacheControlHeaderValue { NoCache = true };
+
+        var stable = await FetchVersionAsync(http, StableUrl);
+        var beta   = await FetchVersionAsync(http, BetaUrl);
+
+        await Application.Current.Dispatcher.InvokeAsync(() =>
+        {
+            if (stable != null && IsNewer(stable.Version, CurrentVersion))
+            {
+                LatestVersion   = stable.Version;
+                ReleaseNotes    = stable.Notes ?? "";
+                DownloadUrl     = stable.Url;
+                UpdateAvailable = true;
+            }
+            else
+            {
+                UpdateAvailable = false;
+                LatestVersion   = "";
+            }
+
+            if (beta != null && IsNewer(beta.Version, CurrentVersion))
+            {
+                LatestBetaVersion = beta.Version;
+                BetaAvailable     = true;
+
+                if (BetaChannel && IsNewer(beta.Version, LatestVersion))
+                {
+                    LatestVersion   = beta.Version;
+                    ReleaseNotes    = beta.Notes ?? "";
+                    DownloadUrl     = beta.Url;
+                    UpdateAvailable = true;
+                }
+            }
+            else
+            {
+                BetaAvailable     = false;
+                LatestBetaVersion = "";
+            }
+        });
+    }
+
+    private static async Task<VersionInfo?> FetchVersionAsync(HttpClient http, string url)
+    {
+        try
+        {
+            var bust = $"{url}?t={DateTimeOffset.UtcNow.ToUnixTimeSeconds()}";
+            var json = await http.GetStringAsync(bust);
+            return JsonSerializer.Deserialize<VersionInfo>(json,
+                new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+        }
+        catch { return null; }
+    }
+
+    public async Task DownloadAndInstallAsync()
+    {
+        if (string.IsNullOrEmpty(DownloadUrl)) return;
+
+        IsDownloading  = true;
+        UpdateError    = null;
+        UpdateComplete = false;
+        StatusMessage  = "Downloading…";
+
+        try
+        {
+            var tmpDir  = Path.Combine(Path.GetTempPath(), $"CCUpdate_{Guid.NewGuid():N}");
+            Directory.CreateDirectory(tmpDir);
+            var zipPath = Path.Combine(tmpDir, "ClaudeChecker.zip");
+
+            using var http = new HttpClient();
+            var response   = await http.GetAsync(DownloadUrl, HttpCompletionOption.ResponseHeadersRead);
+            response.EnsureSuccessStatusCode();
+
+            var total    = response.Content.Headers.ContentLength ?? 0;
+            var received = 0L;
+
+            await using (var stream = await response.Content.ReadAsStreamAsync())
+            await using (var file   = File.Create(zipPath))
+            {
+                var buffer = new byte[81920];
+                int read;
+                while ((read = await stream.ReadAsync(buffer)) > 0)
+                {
+                    await file.WriteAsync(buffer.AsMemory(0, read));
+                    received += read;
+                    if (total > 0)
+                        DownloadProgress = (double)received / total * 0.8;
+                }
+            }
+
+            StatusMessage    = "Unpacking…";
+            DownloadProgress = 0.85;
+
+            var extractDir = Path.Combine(tmpDir, "extracted");
+            ZipFile.ExtractToDirectory(zipPath, extractDir, overwriteFiles: true);
+
+            // Find the installer exe
+            var newExe = FindExe(extractDir);
+            if (newExe == null) throw new Exception("ClaudeChecker.exe not found in update package.");
+
+            DownloadProgress = 0.95;
+            StatusMessage    = "Installing…";
+
+            // Write a batch script to replace the exe after we exit
+            var currentExe = Process.GetCurrentProcess().MainModule!.FileName;
+            var script = $"""
+                @echo off
+                timeout /t 2 /nobreak > nul
+                copy /Y "{newExe}" "{currentExe}"
+                start "" "{currentExe}"
+                rmdir /S /Q "{tmpDir}"
+                """;
+
+            var scriptPath = Path.Combine(Path.GetTempPath(), "claudechecker_update.bat");
+            await File.WriteAllTextAsync(scriptPath, script);
+
+            DownloadProgress = 1.0;
+            StatusMessage    = "Installed! Relaunching…";
+            UpdateComplete   = true;
+
+            await Task.Delay(800);
+
+            Process.Start(new ProcessStartInfo
+            {
+                FileName        = "cmd.exe",
+                Arguments       = $"/C \"{scriptPath}\"",
+                CreateNoWindow  = true,
+                UseShellExecute = false,
+            });
+
+            Application.Current.Dispatcher.Invoke(() => Application.Current.Shutdown());
+        }
+        catch (Exception ex)
+        {
+            UpdateError   = ex.Message;
+            IsDownloading = false;
+            StatusMessage = "";
+        }
+    }
+
+    private static string? FindExe(string dir)
+    {
+        foreach (var f in Directory.EnumerateFiles(dir, "ClaudeChecker.exe", SearchOption.AllDirectories))
+            return f;
+        return null;
+    }
+
+    public static bool IsNewer(string version, string current)
+    {
+        static (int[] Base, int[]? Pre) Parse(string v)
+        {
+            if (string.IsNullOrEmpty(v)) return ([], null);
+            var halves = v.Split('-', 2);
+            var baseP  = Array.ConvertAll(halves[0].Split('.'), p => int.TryParse(p, out var n) ? n : 0);
+            int[]? pre = halves.Length > 1
+                ? Array.ConvertAll(halves[1].Split('.'), p => int.TryParse(p, out var n) ? n : 0)
+                : null;
+            return (baseP, pre);
+        }
+
+        var (ab, ap) = Parse(version);
+        var (bb, bp) = Parse(current);
+
+        for (var i = 0; i < Math.Max(ab.Length, bb.Length); i++)
+        {
+            var av = i < ab.Length ? ab[i] : 0;
+            var bv = i < bb.Length ? bb[i] : 0;
+            if (av != bv) return av > bv;
+        }
+
+        if (ap == null && bp != null) return true;
+        if (ap != null && bp == null) return false;
+        if (ap != null && bp != null)
+        {
+            for (var i = 0; i < Math.Max(ap.Length, bp.Length); i++)
+            {
+                var av = i < ap.Length ? ap[i] : 0;
+                var bv = i < bp.Length ? bp[i] : 0;
+                if (av != bv) return av > bv;
+            }
+        }
+        return false;
+    }
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+    private void Set<T>(ref T field, T value, [CallerMemberName] string? name = null)
+    {
+        if (EqualityComparer<T>.Default.Equals(field, value)) return;
+        field = value;
+        Application.Current.Dispatcher.InvokeAsync(()
+            => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name)));
+    }
+}

windows/UsageViewModel.cs

@@ -0,0 +1,310 @@
+using Microsoft.Web.WebView2.Core;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Net.Http;
+using System.Runtime.CompilerServices;
+using System.Text.Json;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace ClaudeCheckerWindows;
+
+public class UsageViewModel : INotifyPropertyChanged
+{
+    private static readonly string OrgId = "daf626a9-4924-4ff3-ba98-23b523062f8e";
+    private static readonly JsonSerializerOptions JsonOpts = new() { PropertyNameCaseInsensitive = true };
+
+    private List<AgentLimit> _limits = [];
+    private bool _isLoading;
+    private string? _errorMessage;
+    private bool _isSignedIn;
+    private string _userEmail = "";
+    private string _planLabel = "Pro";
+    private DateTime? _lastUpdated;
+    private OverageSpendLimit? _overage;
+    private PrepaidCredits? _prepaid;
+
+    private readonly Dictionary<string, List<double>> _burnHistory = [];
+    private const int MaxHistorySamples = 24;
+
+    public List<AgentLimit> Limits          { get => _limits;       set => Set(ref _limits, value); }
+    public bool IsLoading                   { get => _isLoading;    set => Set(ref _isLoading, value); }
+    public string? ErrorMessage             { get => _errorMessage; set => Set(ref _errorMessage, value); }
+    public bool IsSignedIn                  { get => _isSignedIn;   set => Set(ref _isSignedIn, value); }
+    public string UserEmail                 { get => _userEmail;    set => Set(ref _userEmail, value); }
+    public string PlanLabel                 { get => _planLabel;    set => Set(ref _planLabel, value); }
+    public DateTime? LastUpdated            { get => _lastUpdated;  set => Set(ref _lastUpdated, value); }
+    public OverageSpendLimit? Overage       { get => _overage;      set => Set(ref _overage, value); }
+    public PrepaidCredits? Prepaid          { get => _prepaid;      set => Set(ref _prepaid, value); }
+
+    private int _refreshInterval = 120;
+    public int RefreshInterval
+    {
+        get => _refreshInterval;
+        set
+        {
+            Set(ref _refreshInterval, value);
+            AppSettings.Default.RefreshInterval = value;
+            AppSettings.Default.Save();
+        }
+    }
+
+    private bool _showInTaskbar = true;
+    public bool ShowInTaskbar
+    {
+        get => _showInTaskbar;
+        set
+        {
+            Set(ref _showInTaskbar, value);
+            AppSettings.Default.ShowInTaskbar = value;
+            AppSettings.Default.Save();
+        }
+    }
+
+    public UsageViewModel()
+    {
+        _refreshInterval = AppSettings.Default.RefreshInterval > 0
+            ? AppSettings.Default.RefreshInterval : 120;
+        _showInTaskbar = AppSettings.Default.ShowInTaskbar;
+        LoadBurnHistory();
+        LoadPlaceholders();
+    }
+
+    public async Task RefreshAsync()
+    {
+        await Application.Current.Dispatcher.InvokeAsync(() => IsLoading = true);
+
+        try
+        {
+            var cookies = await GetCookiesAsync();
+            if (cookies.Count == 0)
+            {
+                await Application.Current.Dispatcher.InvokeAsync(() =>
+                {
+                    IsSignedIn = false;
+                    ErrorMessage = "Not signed in — click Sign In to authenticate.";
+                    IsLoading = false;
+                });
+                return;
+            }
+
+            using var http = BuildClient(cookies);
+
+            var usageTask   = FetchAsync<UsageResponse>(http, $"https://claude.ai/api/organizations/{OrgId}/usage");
+            var overageTask = FetchAsync<OverageSpendLimit>(http, $"https://claude.ai/api/organizations/{OrgId}/overage_spend_limit");
+            var prepaidTask = FetchAsync<PrepaidCredits>(http, $"https://claude.ai/api/organizations/{OrgId}/prepaid/credits");
+            var emailTask   = FetchEmailAsync(http);
+
+            await Task.WhenAll(usageTask, overageTask, prepaidTask, emailTask);
+
+            var usage  = usageTask.Result;
+            var limits = BuildLimits(usage);
+
+            foreach (var limit in limits)
+            {
+                var key = limit.Window.ToString();
+                if (!_burnHistory.ContainsKey(key)) _burnHistory[key] = [];
+                _burnHistory[key].Add(limit.UsedPercent);
+                if (_burnHistory[key].Count > MaxHistorySamples)
+                    _burnHistory[key].RemoveAt(0);
+                limit.BurnHistory = [.. _burnHistory[key]];
+            }
+            SaveBurnHistory();
+
+            await Application.Current.Dispatcher.InvokeAsync(() =>
+            {
+                Limits        = limits;
+                Overage       = overageTask.Result;
+                Prepaid       = prepaidTask.Result;
+                UserEmail     = emailTask.Result ?? UserEmail;
+                IsSignedIn    = true;
+                ErrorMessage  = null;
+                LastUpdated   = DateTime.Now;
+                IsLoading     = false;
+            });
+        }
+        catch (Exception ex)
+        {
+            await Application.Current.Dispatcher.InvokeAsync(() =>
+            {
+                ErrorMessage = ex.Message;
+                IsLoading    = false;
+            });
+        }
+    }
+
+    public async Task SignOutAsync()
+    {
+        AppSettings.Default.CookieStore = "";
+        AppSettings.Default.Save();
+
+        await Application.Current.Dispatcher.InvokeAsync(() =>
+        {
+            IsSignedIn   = false;
+            UserEmail    = "";
+            ErrorMessage = "Signed out.";
+            Limits       = [];
+        });
+    }
+
+    // Cookie store: we persist cookies as JSON in settings after login
+    public static async Task<List<(string Name, string Value, string Domain, string Path)>> GetCookiesAsync()
+    {
+        var raw = AppSettings.Default.CookieStore;
+        if (string.IsNullOrEmpty(raw)) return [];
+        try
+        {
+            return JsonSerializer.Deserialize<List<CookieEntry>>(raw)
+                ?.Select(c => (c.Name, c.Value, c.Domain, c.Path))
+                .ToList() ?? [];
+        }
+        catch { return []; }
+    }
+
+    public static void SaveCookies(IEnumerable<CoreWebView2Cookie> cookies)
+    {
+        var entries = cookies
+            .Where(c => c.Domain.Contains("claude.ai"))
+            .Select(c => new CookieEntry { Name = c.Name, Value = c.Value, Domain = c.Domain, Path = c.Path })
+            .ToList();
+        AppSettings.Default.CookieStore = JsonSerializer.Serialize(entries);
+        AppSettings.Default.Save();
+    }
+
+    private static HttpClient BuildClient(List<(string Name, string Value, string Domain, string Path)> cookies)
+    {
+        var handler = new HttpClientHandler { UseCookies = false };
+        var http    = new HttpClient(handler);
+        http.DefaultRequestHeaders.Add("accept", "application/json");
+        var cookieHeader = string.Join("; ", cookies.Select(c => $"{c.Name}={c.Value}"));
+        http.DefaultRequestHeaders.Add("Cookie", cookieHeader);
+        return http;
+    }
+
+    private static async Task<T?> FetchAsync<T>(HttpClient http, string url) where T : class
+    {
+        try
+        {
+            var resp = await http.GetAsync(url);
+            if (!resp.IsSuccessStatusCode) return null;
+            var json = await resp.Content.ReadAsStringAsync();
+            return JsonSerializer.Deserialize<T>(json, JsonOpts);
+        }
+        catch { return null; }
+    }
+
+    private static async Task<string?> FetchEmailAsync(HttpClient http)
+    {
+        try
+        {
+            var resp = await http.GetAsync("https://claude.ai/api/bootstrap");
+            if (!resp.IsSuccessStatusCode) return null;
+            var json = await resp.Content.ReadAsStringAsync();
+            var boot = JsonSerializer.Deserialize<BootstrapResponse>(json, JsonOpts);
+            return boot?.Account?.EmailAddress;
+        }
+        catch { return null; }
+    }
+
+    private List<AgentLimit> BuildLimits(UsageResponse? usage)
+    {
+        if (usage == null) return [];
+        var now    = DateTime.Now;
+        var result = new List<AgentLimit>();
+
+        if (usage.FiveHour != null)
+        {
+            var reset = ParseDate(usage.FiveHour.ResetsAt, now);
+            var pct   = Math.Clamp(usage.FiveHour.Utilization, 0, 100);
+            result.Add(new AgentLimit
+            {
+                Window        = WindowKind.FiveHour,
+                UsedPercent   = pct,
+                TimeRemaining = TimeLeft(reset, now),
+                ResetDate     = reset,
+                BurnRate      = pct / 5.0,
+                IsLive        = true,
+            });
+        }
+
+        if (usage.SevenDay != null)
+        {
+            var reset = ParseDate(usage.SevenDay.ResetsAt, now);
+            var pct   = Math.Clamp(usage.SevenDay.Utilization, 0, 100);
+            result.Add(new AgentLimit
+            {
+                Window        = WindowKind.SevenDay,
+                UsedPercent   = pct,
+                TimeRemaining = TimeLeft(reset, now),
+                ResetDate     = reset,
+                BurnRate      = pct / (7 * 24.0),
+                IsLive        = true,
+            });
+        }
+
+        return result;
+    }
+
+    private static DateTime ParseDate(string? s, DateTime fallback)
+    {
+        if (s == null) return fallback.AddHours(1);
+        return DateTime.TryParse(s, null, System.Globalization.DateTimeStyles.RoundtripKind, out var d)
+            ? d.ToLocalTime() : fallback.AddHours(1);
+    }
+
+    private static string TimeLeft(DateTime reset, DateTime now)
+    {
+        var diff = reset - now;
+        if (diff <= TimeSpan.Zero) return "resetting...";
+        if (diff.TotalDays >= 1)
+            return $"{(int)diff.TotalDays}d {diff.Hours}h";
+        return $"{diff.Hours}h {diff.Minutes}m";
+    }
+
+    private void LoadPlaceholders()
+    {
+        var now = DateTime.Now;
+        Limits =
+        [
+            new() { Window = WindowKind.FiveHour, UsedPercent = 0, TimeRemaining = "—", ResetDate = now.AddHours(1) },
+            new() { Window = WindowKind.SevenDay,  UsedPercent = 0, TimeRemaining = "—", ResetDate = now.AddDays(7) },
+        ];
+    }
+
+    private void LoadBurnHistory()
+    {
+        try
+        {
+            var raw = AppSettings.Default.BurnHistory;
+            if (string.IsNullOrEmpty(raw)) return;
+            var saved = JsonSerializer.Deserialize<Dictionary<string, List<double>>>(raw);
+            if (saved != null)
+                foreach (var kv in saved) _burnHistory[kv.Key] = kv.Value;
+        }
+        catch { }
+    }
+
+    private void SaveBurnHistory()
+    {
+        AppSettings.Default.BurnHistory = JsonSerializer.Serialize(_burnHistory);
+        AppSettings.Default.Save();
+    }
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+    private void Set<T>(ref T field, T value, [CallerMemberName] string? name = null)
+    {
+        if (EqualityComparer<T>.Default.Equals(field, value)) return;
+        field = value;
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
+    }
+
+    private class CookieEntry
+    {
+        public string Name   { get; set; } = "";
+        public string Value  { get; set; } = "";
+        public string Domain { get; set; } = "";
+        public string Path   { get; set; } = "/";
+    }
+}