diff --git a/PureMac/Models/Models.swift b/PureMac/Models/Models.swift
index de85333..e12bc66 100644
--- a/PureMac/Models/Models.swift
+++ b/PureMac/Models/Models.swift
@@ -6,6 +6,7 @@ enum CleaningCategory: String, CaseIterable, Identifiable, Codable {
     case smartScan = "Smart Scan"
     case systemJunk = "System Junk"
     case userCache = "User Cache"
+    case aiApps = "AI Apps"
     case mailAttachments = "Mail Files"
     case trashBins = "Trash Bins"
     case largeFiles = "Large & Old Files"
@@ -22,6 +23,7 @@ enum CleaningCategory: String, CaseIterable, Identifiable, Codable {
         case .smartScan: return "sparkles"
         case .systemJunk: return "gearshape.fill"
         case .userCache: return "internaldrive.fill"
+        case .aiApps: return "cpu.fill"
         case .mailAttachments: return "envelope.fill"
         case .trashBins: return "trash.fill"
         case .largeFiles: return "doc.fill"
@@ -38,6 +40,7 @@ enum CleaningCategory: String, CaseIterable, Identifiable, Codable {
         case .smartScan: return "Scan everything at once"
         case .systemJunk: return "System caches, logs, and temporary files"
         case .userCache: return "Application caches and browser data"
+        case .aiApps: return "Local AI app logs, caches, and optional history"
         case .mailAttachments: return "Downloaded mail attachments"
         case .trashBins: return "Files in your Trash"
         case .largeFiles: return "Files over 100 MB or older than 1 year"
@@ -54,6 +57,7 @@ enum CleaningCategory: String, CaseIterable, Identifiable, Codable {
         case .smartScan: return .accentColor
         case .systemJunk: return .purple
         case .userCache: return .blue
+        case .aiApps: return .teal
         case .mailAttachments: return .orange
         case .trashBins: return .red
         case .largeFiles: return .yellow
diff --git a/PureMac/Services/ScanEngine.swift b/PureMac/Services/ScanEngine.swift
index 00bcb8e..1537594 100644
--- a/PureMac/Services/ScanEngine.swift
+++ b/PureMac/Services/ScanEngine.swift
@@ -7,6 +7,15 @@ actor ScanEngine {
     private struct CleanupTarget {
         let name: String
         let path: String
+        let isSelected: Bool
+        let minimumSize: Int64
+
+        init(name: String, path: String, isSelected: Bool = true, minimumSize: Int64 = 1024) {
+            self.name = name
+            self.path = path
+            self.isSelected = isSelected
+            self.minimumSize = minimumSize
+        }
     }
 
     // MARK: - Public API
@@ -19,6 +28,8 @@ actor ScanEngine {
             return scanSystemJunk()
         case .userCache:
             return scanUserCache()
+        case .aiApps:
+            return scanAIApps()
         case .mailAttachments:
             return scanMailAttachments()
         case .trashBins:
@@ -96,9 +107,11 @@ actor ScanEngine {
 
     private func scanUserCache() -> CategoryResult {
         var items: [CleanableItem] = []
-        // Only exclude Homebrew since it has its own dedicated scan category
+        // Exclude cache roots claimed by dedicated categories to avoid double-counting.
         let excludedRootPaths = Set([
             "\(home)/Library/Caches/Homebrew",
+            "\(home)/Library/Caches/com.electron.ollama",
+            "\(home)/Library/Caches/ollama",
         ].map(normalizePath))
 
         // Dynamically enumerate ~/Library/Caches/ so every subdirectory is visible
@@ -136,6 +149,59 @@ actor ScanEngine {
         return CategoryResult(category: .userCache, items: uniqueItems, totalSize: totalSize)
     }
 
+    private func scanAIApps() -> CategoryResult {
+        let targets = [
+            CleanupTarget(
+                name: "Ollama Logs",
+                path: "\(home)/.ollama/logs"
+            ),
+            CleanupTarget(
+                name: "Ollama Cache",
+                path: "\(home)/Library/Caches/ollama"
+            ),
+            CleanupTarget(
+                name: "Ollama Electron Cache",
+                path: "\(home)/Library/Caches/com.electron.ollama"
+            ),
+            CleanupTarget(
+                name: "Ollama WebKit Data",
+                path: "\(home)/Library/WebKit/com.electron.ollama"
+            ),
+            CleanupTarget(
+                name: "Ollama Saved State",
+                path: "\(home)/Library/Saved Application State/com.electron.ollama.savedState"
+            ),
+            CleanupTarget(
+                name: "Ollama CLI Prompt History (Optional)",
+                path: "\(home)/.ollama/history",
+                isSelected: false,
+                minimumSize: 0
+            ),
+            CleanupTarget(
+                name: "LM Studio Server Logs",
+                path: "\(home)/.lmstudio/server-logs"
+            ),
+            CleanupTarget(
+                name: "LM Studio Conversations (Optional)",
+                path: "\(home)/.lmstudio/conversations",
+                isSelected: false,
+                minimumSize: 0
+            ),
+        ]
+
+        let items = deduplicatedItems(targets.compactMap { target in
+            makeCleanupItem(
+                name: target.name,
+                path: target.path,
+                category: .aiApps,
+                isSelected: target.isSelected,
+                minimumSize: target.minimumSize
+            )
+        })
+        let totalSize = items.reduce(0) { $0 + $1.size }
+        return CategoryResult(category: .aiApps, items: items.sorted { $0.size > $1.size }, totalSize: totalSize)
+    }
+
     private func scanMailAttachments() -> CategoryResult {
         var items: [CleanableItem] = []
 
@@ -660,34 +726,40 @@ actor ScanEngine {
         return items
     }
 
-    private func makeCleanupItem(name: String, path: String, category: CleaningCategory) -> CleanableItem? {
+    private func makeCleanupItem(
+        name: String,
+        path: String,
+        category: CleaningCategory,
+        isSelected: Bool = true,
+        minimumSize: Int64 = 1024
+    ) -> CleanableItem? {
         var isDirectory: ObjCBool = false
         guard fileManager.fileExists(atPath: path, isDirectory: &isDirectory),
               fileManager.isReadableFile(atPath: path) else { return nil }
 
         if isDirectory.boolValue {
             let size = directorySize(path: path)
-            guard size > 1024 else { return nil }
+            guard size > minimumSize else { return nil }
             return CleanableItem(
                 name: name,
                 path: path,
                 size: size,
                 category: category,
-                isSelected: true,
+                isSelected: isSelected,
                 lastModified: fileModDate(path: path)
             )
         }
 
         guard let attrs = try? fileManager.attributesOfItem(atPath: path),
               let size = attrs[.size] as? Int64,
-              size > 1024 else { return nil }
+              size > minimumSize else { return nil }
 
         return CleanableItem(
             name: name,
             path: path,
             size: size,
             category: category,
-            isSelected: true,
+            isSelected: isSelected,
             lastModified: attrs[.modificationDate] as? Date
         )
     }
diff --git a/PureMac/ViewModels/AppState.swift b/PureMac/ViewModels/AppState.swift
index 891817e..a53e90e 100644
--- a/PureMac/ViewModels/AppState.swift
+++ b/PureMac/ViewModels/AppState.swift
@@ -27,6 +27,7 @@ final class AppState: ObservableObject {
     @Published var currentScanCategory: String = ""
     @Published var showCleanConfirmation = false
     @Published var lastCleanedDate: Date?
+    @Published var selectedCleanupItems: Set<UUID> = []
     @Published var deselectedItems: Set<UUID> = []
     @Published var hasFullDiskAccess: Bool = true
     @Published var fdaBannerDismissed: Bool = false
@@ -237,28 +238,47 @@ final class AppState: ObservableObject {
     // MARK: - Selection
 
     func isItemSelected(_ item: CleanableItem) -> Bool {
-        !deselectedItems.contains(item.id)
+        if item.isSelected {
+            return !deselectedItems.contains(item.id)
+        }
+        return selectedCleanupItems.contains(item.id)
     }
 
     func toggleItem(_ item: CleanableItem) {
-        if deselectedItems.contains(item.id) {
-            deselectedItems.remove(item.id)
+        if isItemSelected(item) {
+            if item.isSelected {
+                deselectedItems.insert(item.id)
+            } else {
+                selectedCleanupItems.remove(item.id)
+            }
         } else {
-            deselectedItems.insert(item.id)
+            if item.isSelected {
+                deselectedItems.remove(item.id)
+            } else {
+                selectedCleanupItems.insert(item.id)
+            }
         }
     }
 
     func selectAllInCategory(_ category: CleaningCategory) {
         guard let result = categoryResults[category] else { return }
         for item in result.items {
-            deselectedItems.remove(item.id)
+            if item.isSelected {
+                deselectedItems.remove(item.id)
+            } else {
+                selectedCleanupItems.insert(item.id)
+            }
         }
     }
 
     func deselectAllInCategory(_ category: CleaningCategory) {
         guard let result = categoryResults[category] else { return }
         for item in result.items {
-            deselectedItems.insert(item.id)
+            if item.isSelected {
+                deselectedItems.insert(item.id)
+            } else {
+                selectedCleanupItems.remove(item.id)
+            }
         }
     }
 
@@ -307,6 +327,19 @@ final class AppState: ObservableObject {
         )
     }
 
+    private func clearSelectionState() {
+        selectedCleanupItems.removeAll()
+        deselectedItems.removeAll()
+    }
+
+    private func clearSelectionState(for category: CleaningCategory) {
+        guard let result = categoryResults[category] else { return }
+        for item in result.items {
+            selectedCleanupItems.remove(item.id)
+            deselectedItems.remove(item.id)
+        }
+    }
+
     // MARK: - Full Disk Access
 
     func checkFullDiskAccess() {
@@ -340,7 +373,7 @@ final class AppState: ObservableObject {
         categoryResults = [:]
         totalJunkSize = 0
         scanProgress = 0
-        deselectedItems.removeAll()
+        clearSelectionState()
 
         Task {
             let categories = CleaningCategory.scannable
@@ -371,7 +404,7 @@ final class AppState: ObservableObject {
 
         Task {
             scanProgress = 0.5
-            deselectedItems.removeAll()
+            clearSelectionState(for: category)
             let result = await scanEngine.scanCategory(category)
             categoryResults[category] = result
 
@@ -405,6 +438,7 @@ final class AppState: ObservableObject {
 
             categoryResults = [:]
             totalJunkSize = 0
+            clearSelectionState()
             scanState = .cleaned
             loadDiskInfo()
 
@@ -434,6 +468,7 @@ final class AppState: ObservableObject {
             totalFreedSpace = cleanResult.freedSpace
             lastCleanedDate = Date()
 
+            clearSelectionState(for: category)
             categoryResults.removeValue(forKey: category)
             totalJunkSize = categoryResults.values.reduce(0) { $0 + $1.totalSize }
             scanState = .cleaned
@@ -470,6 +505,8 @@ final class AppState: ObservableObject {
     private func runScheduledScan() async {
         let categories = scheduler.config.categoriesToScan
         var totalFound: Int64 = 0
+        clearSelectionState()
+        categoryResults = [:]
 
         for category in categories {
             let result = await scanEngine.scanCategory(category)
diff --git a/PureMac/en.lproj/Localizable.strings b/PureMac/en.lproj/Localizable.strings
index 37ee79e..5c12d00 100644
--- a/PureMac/en.lproj/Localizable.strings
+++ b/PureMac/en.lproj/Localizable.strings
@@ -97,6 +97,7 @@
 "System caches, logs, and temporary files" = "System caches, logs, and temporary files";
 "Application caches and browser data" = "Application caches and browser data";
 "Logs, caches, and temporary files from local AI apps" = "Logs, caches, and temporary files from local AI apps";
+"Local AI app logs, caches, and optional history" = "Local AI app logs, caches, and optional history";
 "Downloaded mail attachments" = "Downloaded mail attachments";
 "Files in your Trash" = "Files in your Trash";
 "Files over 100 MB or older than 1 year" = "Files over 100 MB or older than 1 year";
diff --git a/PureMac/es.lproj/Localizable.strings b/PureMac/es.lproj/Localizable.strings
index 03b7a56..c272221 100644
--- a/PureMac/es.lproj/Localizable.strings
+++ b/PureMac/es.lproj/Localizable.strings
@@ -97,6 +97,7 @@
 "System caches, logs, and temporary files" = "Cachés del sistema, registros y archivos temporales";
 "Application caches and browser data" = "Cachés de aplicaciones y datos del navegador";
 "Logs, caches, and temporary files from local AI apps" = "Registros, cachés y archivos temporales de apps de IA locales";
+"Local AI app logs, caches, and optional history" = "Registros, cachés e historial opcional de apps de IA locales";
 "Downloaded mail attachments" = "Adjuntos de correo descargados";
 "Files in your Trash" = "Archivos en tu Papelera";
 "Files over 100 MB or older than 1 year" = "Archivos de más de 100 MB o con más de 1 año";
diff --git a/PureMac/ja.lproj/Localizable.strings b/PureMac/ja.lproj/Localizable.strings
index 7bf567c..237c04a 100644
--- a/PureMac/ja.lproj/Localizable.strings
+++ b/PureMac/ja.lproj/Localizable.strings
@@ -97,6 +97,7 @@
 "System caches, logs, and temporary files" = "システムキャッシュ、ログ、一時ファイル";
 "Application caches and browser data" = "アプリキャッシュとブラウザデータ";
 "Logs, caches, and temporary files from local AI apps" = "ローカルAIアプリのログ、キャッシュ、一時ファイル";
+"Local AI app logs, caches, and optional history" = "ローカルAIアプリのログ、キャッシュ、任意の履歴";
 "Downloaded mail attachments" = "ダウンロードしたメール添付ファイル";
 "Files in your Trash" = "ゴミ箱内のファイル";
 "Files over 100 MB or older than 1 year" = "100 MB超または1年以上前のファイル";
diff --git a/PureMac/zh-Hans.lproj/Localizable.strings b/PureMac/zh-Hans.lproj/Localizable.strings
index c9c030b..4c7a6eb 100644
--- a/PureMac/zh-Hans.lproj/Localizable.strings
+++ b/PureMac/zh-Hans.lproj/Localizable.strings
@@ -97,6 +97,7 @@
 "System caches, logs, and temporary files" = "系统缓存、日志和临时文件";
 "Application caches and browser data" = "应用程序缓存和浏览器数据";
 "Logs, caches, and temporary files from local AI apps" = "本地 AI 应用的日志、缓存和临时文件";
+"Local AI app logs, caches, and optional history" = "本地 AI 应用的日志、缓存和可选历史记录";
 "Downloaded mail attachments" = "下载的邮件附件";
 "Files in your Trash" = "废纸篓中的文件";
 "Files over 100 MB or older than 1 year" = "超过 100 MB 或一年以上的文件";
diff --git a/PureMac/zh-Hant.lproj/Localizable.strings b/PureMac/zh-Hant.lproj/Localizable.strings
index d83665d..750ce17 100644
--- a/PureMac/zh-Hant.lproj/Localizable.strings
+++ b/PureMac/zh-Hant.lproj/Localizable.strings
@@ -97,6 +97,7 @@
 "System caches, logs, and temporary files" = "系統快取、記錄檔及暫存檔案";
 "Application caches and browser data" = "應用程式快取與瀏覽器資料";
 "Logs, caches, and temporary files from local AI apps" = "來自本機 AI 應用程式的日誌、快取和暫存檔案";
+"Local AI app logs, caches, and optional history" = "本機 AI 應用程式的日誌、快取與可選歷史記錄";
 "Downloaded mail attachments" = "已下載的郵件附件";
 "Files in your Trash" = "垃圾桶中的檔案";
 "Files over 100 MB or older than 1 year" = "超過 100 MB 或超過一年未使用的檔案";
diff --git a/README.md b/README.md
index eb9089e..13f4257 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ open build/Build/Products/Release/PureMac.app
 - **Smart Scan** - one-click scan across all categories
 - **System Junk** - system caches, logs, and temporary files
 - **User Cache** - dynamically discovers all app caches (no hardcoded app list)
+- **AI Apps** - Ollama and LM Studio logs, caches, and opt-in local history cleanup
 - **Mail Attachments** - downloaded mail attachments
 - **Trash Bins** - empty all Trash
 - **Large & Old Files** - files over 100 MB or older than 1 year
@@ -102,6 +103,7 @@ open build/Build/Products/Release/PureMac.app
 - Symlink attack prevention - resolves and validates paths before deletion
 - System app protection - Apple apps cannot be uninstalled
 - Large & Old Files are never auto-selected
+- AI prompt and conversation history is visible for review but never selected automatically
 - Structured logging via `os.log` (visible in Console.app)
 
 ## Screenshots
diff --git a/docs/README.es.md b/docs/README.es.md
index 64bf643..55effc1 100644
--- a/docs/README.es.md
+++ b/docs/README.es.md
@@ -82,6 +82,7 @@ open build/Build/Products/Release/PureMac.app
 - **Análisis inteligente** — análisis de un clic en todas las categorías
 - **Basura del sistema** — cachés del sistema, registros y archivos temporales
 - **Caché de usuario** — descubre dinámicamente todos los cachés de apps (sin lista predefinida)
+- **Apps de IA** — registros, cachés y limpieza opcional del historial local de Ollama y LM Studio
 - **Adjuntos de correo** — adjuntos de correo descargados
 - **Papeleras** — vacía todas las papeleras
 - **Archivos grandes y antiguos** — archivos de más de 100 MB o con más de 1 año
@@ -102,6 +103,7 @@ open build/Build/Products/Release/PureMac.app
 - Prevención de ataques por enlaces simbólicos — resuelve y valida rutas antes de eliminar
 - Protección de apps del sistema — las apps de Apple no se pueden desinstalar
 - Los archivos grandes y antiguos nunca se seleccionan automáticamente
+- El historial de prompts y conversaciones de IA se muestra para revisión, pero nunca se selecciona automáticamente
 - Registro estructurado con `os.log` (visible en Consola.app)
 
 ## Capturas
diff --git a/docs/README.ja.md b/docs/README.ja.md
index 954a5c1..b743526 100644
--- a/docs/README.ja.md
+++ b/docs/README.ja.md
@@ -82,6 +82,7 @@ open build/Build/Products/Release/PureMac.app
 - **スマートスキャン** — すべてのカテゴリをワンクリックでスキャン
 - **システムジャンク** — システムキャッシュ、ログ、一時ファイル
 - **ユーザーキャッシュ** — すべてのアプリキャッシュを動的に検出（ハードコーディングされたリストなし）
+- **AIアプリ** — Ollama と LM Studio のログ、キャッシュ、任意のローカル履歴クリーンアップ
 - **メール添付ファイル** — ダウンロード済みのメール添付
 - **ゴミ箱** — すべてのゴミ箱を空に
 - **大容量・古いファイル** — 100 MB を超える、または 1 年以上経過したファイル
@@ -102,6 +103,7 @@ open build/Build/Products/Release/PureMac.app
 - シンボリックリンク攻撃の防止 — 削除前にパスを解決・検証
 - システムアプリ保護 — Apple 製アプリはアンインストール不可
 - 大容量・古いファイルは自動選択されません
+- AI のプロンプト履歴と会話履歴は確認用に表示されますが、自動選択されません
 - `os.log` による構造化ログ（Console.app で閲覧可能）
 
 ## スクリーンショット
diff --git a/docs/README.zh-Hans.md b/docs/README.zh-Hans.md
index 109fde1..c821e05 100644
--- a/docs/README.zh-Hans.md
+++ b/docs/README.zh-Hans.md
@@ -82,6 +82,7 @@ open build/Build/Products/Release/PureMac.app
 - **智能扫描** — 一键扫描所有类别
 - **系统垃圾** — 系统缓存、日志和临时文件
 - **用户缓存** — 动态发现所有应用缓存(无需硬编码应用列表)
+- **AI 应用** — Ollama 和 LM Studio 日志、缓存，以及可选的本地历史记录清理
 - **邮件附件** — 已下载的邮件附件
 - **废纸篓** — 清空所有废纸篓
 - **大文件与旧文件** — 超过 100 MB 或超过 1 年的文件
@@ -102,6 +103,7 @@ open build/Build/Products/Release/PureMac.app
 - 防御符号链接攻击 — 删除前解析并验证路径
 - 系统应用保护 — Apple 应用无法被卸载
 - 大文件与旧文件永远不会被自动选中
+- AI 提示和对话历史记录会显示供用户检查，但永远不会自动选中
 - 通过 `os.log` 进行结构化日志记录(可在“控制台”应用中查看)
 
 ## 截图
diff --git a/docs/README.zh-Hant.md b/docs/README.zh-Hant.md
index b3f0962..df651d1 100644
--- a/docs/README.zh-Hant.md
+++ b/docs/README.zh-Hant.md
@@ -82,6 +82,7 @@ open build/Build/Products/Release/PureMac.app
 - **智慧掃描** — 一鍵掃描所有分類
 - **系統垃圾** — 系統快取、記錄與暫存檔案
 - **使用者快取** — 動態發現所有應用程式快取(不需寫死清單)
+- **AI 應用程式** — Ollama 與 LM Studio 日誌、快取，以及可選的本機歷史記錄清理
 - **郵件附件** — 已下載的郵件附件
 - **垃圾桶** — 清空所有垃圾桶
 - **大型與舊檔案** — 超過 100 MB 或超過 1 年的檔案
@@ -102,6 +103,7 @@ open build/Build/Products/Release/PureMac.app
 - 符號連結攻擊防護 — 刪除前先解析並驗證路徑
 - 系統應用程式保護 — Apple 應用程式無法被解除安裝
 - 大型與舊檔案永遠不會被自動勾選
+- AI 提示與對話歷史記錄會顯示供使用者檢視，但永遠不會自動勾選
 - 透過 `os.log` 進行結構化記錄(可在「主控台」App 中檢視)
 
 ## 螢幕截圖