Feat: Task Favorites ⭐️ (#3392)

* Task Favorites

* Task management docs

.changeset/selfish-garlics-lay.md

@@ -0,0 +1,5 @@
+---
+"claude-dev": minor
+---
+
+Add Task Favorites and several proto messages related to tasks

docs/docs.json

@@ -62,6 +62,7 @@
 					"getting-started/installing-dev-essentials",
 					"getting-started/model-selection-guide",
 					"getting-started/our-favorite-tech-stack",
+					"getting-started/task-management",
 					"getting-started/understanding-context-management",
 					"getting-started/what-is-cline"
 				]

docs/getting-started/task-management.mdx

@@ -0,0 +1,67 @@
+---
+title: "Task Management in Cline"
+description: "Learn how to effectively manage your task history, use favorites, and organize your work in Cline."
+---
+
+# Task Management
+
+As you use Cline, you'll accumulate many tasks over time. The task management system helps you organize, filter, search, and clean up your task history to keep your workspace efficient.
+
+## Accessing Task History
+
+You can access your task history by:
+
+1. Clicking on the "History" button in the Cline sidebar
+2. Using the command palette to search for "Cline: Show Task History"
+
+## Task History Features
+
+The task history view provides several powerful features:
+
+### Searching and Filtering
+
+-   **Search Bar**: Use the fuzzy search at the top to quickly find tasks by content
+-   **Sort Options**: Sort tasks by:
+    -   Newest (default)
+    -   Oldest
+    -   Most Expensive (highest API cost)
+    -   Most Tokens (highest token usage)
+    -   Most Relevant (when searching)
+-   **Favorites Filter**: Toggle to show only favorited tasks
+
+### Task Actions
+
+Each task in the history view has several actions available:
+
+-   **Open**: Click on a task to reopen it in the Cline chat
+-   **Favorite**: Click the star icon to mark a task as a favorite
+-   **Delete**: Remove individual tasks (favorites are protected from deletion)
+-   **Export**: Export a task's conversation to markdown
+
+## ⭐ Task Favorites
+
+The favorites feature allows you to mark important tasks that you want to preserve and find quickly.
+
+### How Favorites Work
+
+-   **Marking Favorites**: Click the star icon next to any task to toggle its favorite status
+-   **Protection**: Favorited tasks are protected from individual and bulk deletion operations (can be overridden)
+-   **Filtering**: Use the favorites filter to quickly access your important tasks
+
+## Batch Operations
+
+The task history view supports several batch operations:
+
+-   **Select Multiple**: Use the checkboxes to select multiple tasks
+-   **Select All/None**: Quickly select or deselect all tasks
+-   **Delete Selected**: Remove all selected tasks
+-   **Delete All**: Remove all tasks from history (favorites are preserved unless you choose to include them)
+
+## Best Practices
+
+1. **Favorite Important Tasks**: Mark reference tasks or frequently accessed conversations as favorites
+2. **Regular Cleanup**: Periodically remove old or unused tasks to improve performance
+3. **Use Search**: Leverage the fuzzy search to quickly find specific conversations
+4. **Export Valuable Tasks**: Export important tasks to markdown for external reference
+
+Task management helps you maintain an organized workflow when using Cline, allowing you to quickly find past conversations, preserve important work, and keep your history clean and efficient.

proto/task.proto

@@ -16,9 +16,15 @@ service TaskService {
   // Creates a new task with the given text and optional images
   rpc newTask(NewTaskRequest) returns (Empty);
   // Shows a task with the specified ID
-  rpc showTaskWithId(StringRequest) returns (Empty);
+  rpc showTaskWithId(StringRequest) returns (TaskResponse);
   // Exports a task with the given ID to markdown
   rpc exportTaskWithId(StringRequest) returns (Empty);
+  // Toggles the favorite status of a task
+  rpc toggleTaskFavorite(TaskFavoriteRequest) returns (Empty);
+  // Deletes all non-favorited tasks
+  rpc deleteNonFavoritedTasks(EmptyRequest) returns (DeleteNonFavoritedTasksResults);
+  // Gets filtered task history
+  rpc getTaskHistory(GetTaskHistoryRequest) returns (TaskHistoryArray);
 }
 
 // Request message for creating a new task
@@ -27,3 +33,58 @@ message NewTaskRequest {
   string text = 2;
   repeated string images = 3;
 }
+
+// Request message for toggling task favorite status
+message TaskFavoriteRequest {
+  Metadata metadata = 1;
+  string task_id = 2;
+  bool is_favorited = 3;
+}
+
+// Response for task details
+message TaskResponse {
+  string id = 1;
+  string task = 2;
+  int64 ts = 3;
+  bool is_favorited = 4;
+  int64 size = 5;
+  double total_cost = 6;
+  int32 tokens_in = 7;
+  int32 tokens_out = 8;
+  int32 cache_writes = 9;
+  int32 cache_reads = 10;
+}
+
+// Results returned when deleting non-favorited tasks
+message DeleteNonFavoritedTasksResults {
+  int32 tasks_preserved = 1;
+  int32 tasks_deleted = 2;
+}
+
+// Request for getting task history with filtering
+message GetTaskHistoryRequest {
+  Metadata metadata = 1;
+  bool favorites_only = 2;
+  string search_query = 3;
+  string sort_by = 4;
+}
+
+// Response for task history
+message TaskHistoryArray {
+  repeated TaskItem tasks = 1;
+  int32 total_count = 2;
+}
+
+// Task item details for history list
+message TaskItem {
+  string id = 1;
+  string task = 2;
+  int64 ts = 3;
+  bool is_favorited = 4;
+  int64 size = 5;
+  double total_cost = 6;
+  int32 tokens_in = 7;
+  int32 tokens_out = 8;
+  int32 cache_writes = 9;
+  int32 cache_reads = 10;
+}

src/core/controller/index.ts

@@ -597,11 +597,18 @@ export class Controller {
 			}
 			case "clearAllTaskHistory": {
 				const answer = await vscode.window.showWarningMessage(
-					"Are you sure you want to delete all history?",
-					"Delete",
+					"What would you like to delete?",
+					{ modal: true },
+					"Delete All Except Favorites",
+					"Delete Everything",
 					"Cancel",
 				)
-				if (answer === "Delete") {
+
+				if (answer === "Delete All Except Favorites") {
+					await this.deleteNonFavoriteTaskHistory()
+					await this.postStateToWebview()
+					this.refreshTotalTasksSize()
+				} else if (answer === "Delete Everything") {
 					await this.deleteAllTaskHistory()
 					await this.postStateToWebview()
 					this.refreshTotalTasksSize()
@@ -1538,6 +1545,43 @@ Here is the project's README to help you get started:\n\n${mcpDetails.readmeCont
 		// await this.postStateToWebview()
 	}
 
+	async deleteNonFavoriteTaskHistory() {
+		await this.clearTask()
+
+		const taskHistory = ((await getGlobalState(this.context, "taskHistory")) as HistoryItem[]) || []
+		const favoritedTasks = taskHistory.filter((task) => task.isFavorited === true)
+
+		// If user has no favorited tasks, show a warning message
+		if (favoritedTasks.length === 0) {
+			vscode.window.showWarningMessage("No favorited tasks found. Please favorite tasks before using this option.")
+			await this.postStateToWebview()
+			return
+		}
+
+		await updateGlobalState(this.context, "taskHistory", favoritedTasks)
+
+		// Delete non-favorited task directories
+		try {
+			const preserveTaskIds = favoritedTasks.map((task) => task.id)
+			const taskDirPath = path.join(this.context.globalStorageUri.fsPath, "tasks")
+
+			if (await fileExistsAtPath(taskDirPath)) {
+				const taskDirs = await fs.readdir(taskDirPath)
+				for (const taskDir of taskDirs) {
+					if (!preserveTaskIds.includes(taskDir)) {
+						await fs.rm(path.join(taskDirPath, taskDir), { recursive: true, force: true })
+					}
+				}
+			}
+		} catch (error) {
+			vscode.window.showErrorMessage(
+				`Error deleting task history: ${error instanceof Error ? error.message : String(error)}`,
+			)
+		}
+
+		await this.postStateToWebview()
+	}
+
 	async refreshTotalTasksSize() {
 		getTotalTasksSize(this.context.globalStorageUri.fsPath)
 			.then((newTotalSize) => {

src/core/controller/task/deleteNonFavoritedTasks.ts

@@ -0,0 +1,88 @@
+import path from "path"
+import fs from "fs/promises"
+import { Controller } from ".."
+import { EmptyRequest } from "../../../shared/proto/common"
+import { DeleteNonFavoritedTasksResults } from "../../../shared/proto/task"
+import { getGlobalState, updateGlobalState } from "../../storage/state"
+import { fileExistsAtPath } from "../../../utils/fs"
+
+/**
+ * Deletes all non-favorited tasks, preserving only favorited ones
+ * @param controller The controller instance
+ * @param request Empty request
+ * @returns DeleteNonFavoritedTasksResults with counts of preserved and deleted tasks
+ */
+export async function deleteNonFavoritedTasks(
+	controller: Controller,
+	_request: EmptyRequest,
+): Promise<DeleteNonFavoritedTasksResults> {
+	try {
+		// Clear current task first
+		await controller.clearTask()
+
+		// Get existing task history
+		const taskHistory = ((await getGlobalState(controller.context, "taskHistory")) as any[]) || []
+
+		// Filter out non-favorited tasks
+		const favoritedTasks = taskHistory.filter((task) => task.isFavorited === true)
+		const deletedCount = taskHistory.length - favoritedTasks.length
+
+		console.log(`[deleteNonFavoritedTasks] Found ${favoritedTasks.length} favorited tasks to preserve`)
+
+		// Update global state
+		if (favoritedTasks.length > 0) {
+			await updateGlobalState(controller.context, "taskHistory", favoritedTasks)
+		} else {
+			await updateGlobalState(controller.context, "taskHistory", undefined)
+		}
+
+		// Handle file system cleanup for deleted tasks
+		const preserveTaskIds = favoritedTasks.map((task) => task.id)
+		await cleanupTaskFiles(controller, preserveTaskIds)
+
+		// Update webview
+		try {
+			await controller.postStateToWebview()
+		} catch (webviewErr) {
+			console.error("Error posting to webview:", webviewErr)
+		}
+
+		return {
+			tasksPreserved: favoritedTasks.length,
+			tasksDeleted: deletedCount,
+		}
+	} catch (error) {
+		console.error("Error in deleteNonFavoritedTasks:", error)
+		throw error
+	}
+}
+
+/**
+ * Helper function to cleanup task files while preserving specified tasks
+ */
+async function cleanupTaskFiles(controller: Controller, preserveTaskIds: string[]) {
+	const taskDirPath = path.join(controller.context.globalStorageUri.fsPath, "tasks")
+
+	try {
+		if (await fileExistsAtPath(taskDirPath)) {
+			if (preserveTaskIds.length > 0) {
+				const taskDirs = await fs.readdir(taskDirPath)
+				console.debug(`[cleanupTaskFiles] Found ${taskDirs.length} task directories`)
+
+				// Delete only non-preserved task directories
+				for (const dir of taskDirs) {
+					if (!preserveTaskIds.includes(dir)) {
+						await fs.rm(path.join(taskDirPath, dir), { recursive: true, force: true })
+					}
+				}
+			} else {
+				// No tasks to preserve, delete everything
+				await fs.rm(taskDirPath, { recursive: true, force: true })
+			}
+		}
+	} catch (error) {
+		console.error("Error cleaning up task files:", error)
+	}
+
+	return true
+}

src/core/controller/task/getTaskHistory.ts

@@ -0,0 +1,89 @@
+import { Controller } from ".."
+import { GetTaskHistoryRequest, TaskHistoryArray } from "../../../shared/proto/task"
+import { getGlobalState } from "../../storage/state"
+
+/**
+ * Gets filtered task history
+ * @param controller The controller instance
+ * @param request Filter parameters for task history
+ * @returns TaskHistoryArray with filtered task list
+ */
+export async function getTaskHistory(controller: Controller, request: GetTaskHistoryRequest): Promise<TaskHistoryArray> {
+	try {
+		const { favoritesOnly, searchQuery, sortBy } = request
+
+		// Get task history from global state
+		const taskHistory = ((await getGlobalState(controller.context, "taskHistory")) as any[]) || []
+
+		// Apply filters
+		let filteredTasks = taskHistory.filter((item) => {
+			// Basic filter: must have timestamp and task content
+			const hasRequiredFields = item.ts && item.task
+
+			// Apply favorites filter if requested
+			if (favoritesOnly && hasRequiredFields) {
+				return item.isFavorited === true
+			}
+
+			return hasRequiredFields
+		})
+
+		// Apply search if provided
+		if (searchQuery) {
+			// Simple search implementation
+			const query = searchQuery.toLowerCase()
+			filteredTasks = filteredTasks.filter((item) => item.task.toLowerCase().includes(query))
+		}
+
+		// Calculate total count before sorting
+		const totalCount = filteredTasks.length
+
+		// Apply sorting
+		if (sortBy) {
+			filteredTasks.sort((a, b) => {
+				switch (sortBy) {
+					case "oldest":
+						return a.ts - b.ts
+					case "mostExpensive":
+						return (b.totalCost || 0) - (a.totalCost || 0)
+					case "mostTokens":
+						return (
+							(b.tokensIn || 0) +
+							(b.tokensOut || 0) +
+							(b.cacheWrites || 0) +
+							(b.cacheReads || 0) -
+							((a.tokensIn || 0) + (a.tokensOut || 0) + (a.cacheWrites || 0) + (a.cacheReads || 0))
+						)
+					case "newest":
+					default:
+						return b.ts - a.ts
+				}
+			})
+		} else {
+			// Default sort by newest
+			filteredTasks.sort((a, b) => b.ts - a.ts)
+		}
+
+		// Map to response format
+		const tasks = filteredTasks.map((item) => ({
+			id: item.id,
+			task: item.task,
+			ts: item.ts,
+			isFavorited: item.isFavorited || false,
+			size: item.size || 0,
+			totalCost: item.totalCost || 0,
+			tokensIn: item.tokensIn || 0,
+			tokensOut: item.tokensOut || 0,
+			cacheWrites: item.cacheWrites || 0,
+			cacheReads: item.cacheReads || 0,
+		}))
+
+		return {
+			tasks,
+			totalCount,
+		}
+	} catch (error) {
+		console.error("Error in getTaskHistory:", error)
+		throw error
+	}
+}

src/core/controller/task/methods.ts

@@ -5,18 +5,24 @@
 import { registerMethod } from "./index"
 import { cancelTask } from "./cancelTask"
 import { clearTask } from "./clearTask"
+import { deleteNonFavoritedTasks } from "./deleteNonFavoritedTasks"
 import { deleteTasksWithIds } from "./deleteTasksWithIds"
 import { exportTaskWithId } from "./exportTaskWithId"
+import { getTaskHistory } from "./getTaskHistory"
 import { newTask } from "./newTask"
 import { showTaskWithId } from "./showTaskWithId"
+import { toggleTaskFavorite } from "./toggleTaskFavorite"
 
 // Register all task service methods
 export function registerAllMethods(): void {
 	// Register each method with the registry
 	registerMethod("cancelTask", cancelTask)
 	registerMethod("clearTask", clearTask)
+	registerMethod("deleteNonFavoritedTasks", deleteNonFavoritedTasks)
 	registerMethod("deleteTasksWithIds", deleteTasksWithIds)
 	registerMethod("exportTaskWithId", exportTaskWithId)
+	registerMethod("getTaskHistory", getTaskHistory)
 	registerMethod("newTask", newTask)
 	registerMethod("showTaskWithId", showTaskWithId)
+	registerMethod("toggleTaskFavorite", toggleTaskFavorite)
 }

src/core/controller/task/showTaskWithId.ts

@@ -1,17 +1,73 @@
 import { Controller } from ".."
-import { Empty, StringRequest } from "../../../shared/proto/common"
+import { StringRequest } from "../../../shared/proto/common"
+import { TaskResponse } from "../../../shared/proto/task"
 
 /**
  * Shows a task with the specified ID
  * @param controller The controller instance
  * @param request The request containing the task ID
- * @returns Empty response
+ * @returns TaskResponse with task details
  */
-export async function showTaskWithId(controller: Controller, request: StringRequest): Promise<Empty> {
+export async function showTaskWithId(controller: Controller, request: StringRequest): Promise<TaskResponse> {
 	try {
-		await controller.showTaskWithId(request.value)
-		return Empty.create()
+		const id = request.value
+
+		// First check if task exists in global state for faster access
+		const taskHistory = ((await controller.context.globalState.get("taskHistory")) as any[]) || []
+		const historyItem = taskHistory.find((item) => item.id === id)
+
+		// We need to initialize the task before returning data
+		if (historyItem) {
+			// Always initialize the task with the history item
+			await controller.initTask(undefined, undefined, historyItem)
+
+			// Send UI update to show the chat view
+			await controller.postMessageToWebview({
+				type: "action",
+				action: "chatButtonClicked",
+			})
+
+			// Return task data for gRPC response
+			return {
+				id: historyItem.id,
+				task: historyItem.task || "",
+				ts: historyItem.ts || 0,
+				isFavorited: historyItem.isFavorited || false,
+				size: historyItem.size || 0,
+				totalCost: historyItem.totalCost || 0,
+				tokensIn: historyItem.tokensIn || 0,
+				tokensOut: historyItem.tokensOut || 0,
+				cacheWrites: historyItem.cacheWrites || 0,
+				cacheReads: historyItem.cacheReads || 0,
+			}
+		}
+
+		// If not in global state, fetch from storage
+		const { historyItem: fetchedItem } = await controller.getTaskWithId(id)
+
+		// Initialize the task with the fetched item
+		await controller.initTask(undefined, undefined, fetchedItem)
+
+		// Send UI update to show the chat view
+		await controller.postMessageToWebview({
+			type: "action",
+			action: "chatButtonClicked",
+		})
+
+		return {
+			id: fetchedItem.id,
+			task: fetchedItem.task || "",
+			ts: fetchedItem.ts || 0,
+			isFavorited: fetchedItem.isFavorited || false,
+			size: fetchedItem.size || 0,
+			totalCost: fetchedItem.totalCost || 0,
+			tokensIn: fetchedItem.tokensIn || 0,
+			tokensOut: fetchedItem.tokensOut || 0,
+			cacheWrites: fetchedItem.cacheWrites || 0,
+			cacheReads: fetchedItem.cacheReads || 0,
+		}
 	} catch (error) {
+		console.error("Error in showTaskWithId:", error)
 		throw error
 	}
 }

src/core/controller/task/toggleTaskFavorite.ts

@@ -0,0 +1,51 @@
+import { Controller } from "../"
+import { Empty } from "../../../shared/proto/common"
+import { TaskFavoriteRequest } from "../../../shared/proto/task"
+
+export async function toggleTaskFavorite(controller: Controller, request: TaskFavoriteRequest): Promise<Empty> {
+	if (!request.taskId || request.isFavorited === undefined) {
+		const errorMsg = `[toggleTaskFavorite] Invalid request: taskId or isFavorited missing`
+		console.error(errorMsg)
+		return {}
+	}
+
+	try {
+		// Update in-memory state only
+		try {
+			const history = ((await controller.context.globalState.get("taskHistory")) as any[]) || []
+
+			const taskIndex = history.findIndex((item) => item.id === request.taskId)
+
+			if (taskIndex === -1) {
+				console.log(`[toggleTaskFavorite] Task not found in history array!`)
+			} else {
+				// Create a new array instead of modifying in place to ensure state change
+				const updatedHistory = [...history]
+				updatedHistory[taskIndex] = {
+					...updatedHistory[taskIndex],
+					isFavorited: request.isFavorited,
+				}
+
+				// Update global state and wait for it to complete
+				try {
+					await controller.context.globalState.update("taskHistory", updatedHistory)
+				} catch (stateErr) {
+					console.error("Error updating global state:", stateErr)
+				}
+			}
+		} catch (historyErr) {
+			console.error("Error processing task history:", historyErr)
+		}
+
+		// Post to webview
+		try {
+			await controller.postStateToWebview()
+		} catch (webviewErr) {
+			console.error("Error posting to webview:", webviewErr)
+		}
+	} catch (error) {
+		console.error("Error in toggleTaskFavorite:", error)
+	}
+
+	return {}
+}

src/core/task/index.ts

@@ -118,6 +118,7 @@ export class Task {
 	private cancelTask: () => Promise<void>
 
 	readonly taskId: string
+	private taskIsFavorited?: boolean
 	api: ApiHandler
 	private terminalManager: TerminalManager
 	private urlContentFetcher: UrlContentFetcher
@@ -211,6 +212,7 @@ export class Task {
 		// Initialize taskId first
 		if (historyItem) {
 			this.taskId = historyItem.id
+			this.taskIsFavorited = historyItem.isFavorited
 			this.conversationHistoryDeletedRange = historyItem.conversationHistoryDeletedRange
 		} else if (task || images) {
 			this.taskId = Date.now().toString()
@@ -314,6 +316,7 @@ export class Task {
 				size: taskDirSize,
 				shadowGitConfigWorkTree: await this.checkpointTracker?.getShadowGitConfigWorkTree(),
 				conversationHistoryDeletedRange: this.conversationHistoryDeletedRange,
+				isFavorited: this.taskIsFavorited,
 			})
 		} catch (error) {
 			console.error("Failed to save cline messages:", error)

src/shared/HistoryItem.ts

@@ -11,4 +11,5 @@ export type HistoryItem = {
 	size?: number
 	shadowGitConfigWorkTree?: string
 	conversationHistoryDeletedRange?: [number, number]
+	isFavorited?: boolean
 }

src/shared/proto/task.ts

@@ -17,6 +17,61 @@ export interface NewTaskRequest {
 	images: string[]
 }
 
+/** Request message for toggling task favorite status */
+export interface TaskFavoriteRequest {
+	metadata?: Metadata | undefined
+	taskId: string
+	isFavorited: boolean
+}
+
+/** Response for task details */
+export interface TaskResponse {
+	id: string
+	task: string
+	ts: number
+	isFavorited: boolean
+	size: number
+	totalCost: number
+	tokensIn: number
+	tokensOut: number
+	cacheWrites: number
+	cacheReads: number
+}
+
+/** Results returned when deleting non-favorited tasks */
+export interface DeleteNonFavoritedTasksResults {
+	tasksPreserved: number
+	tasksDeleted: number
+}
+
+/** Request for getting task history with filtering */
+export interface GetTaskHistoryRequest {
+	metadata?: Metadata | undefined
+	favoritesOnly: boolean
+	searchQuery: string
+	sortBy: string
+}
+
+/** Response for task history */
+export interface TaskHistoryArray {
+	tasks: TaskItem[]
+	totalCount: number
+}
+
+/** Task item details for history list */
+export interface TaskItem {
+	id: string
+	task: string
+	ts: number
+	isFavorited: boolean
+	size: number
+	totalCost: number
+	tokensIn: number
+	tokensOut: number
+	cacheWrites: number
+	cacheReads: number
+}
+
 function createBaseNewTaskRequest(): NewTaskRequest {
 	return { metadata: undefined, text: "", images: [] }
 }
@@ -110,6 +165,790 @@ export const NewTaskRequest: MessageFns<NewTaskRequest> = {
 	},
 }
 
+function createBaseTaskFavoriteRequest(): TaskFavoriteRequest {
+	return { metadata: undefined, taskId: "", isFavorited: false }
+}
+
+export const TaskFavoriteRequest: MessageFns<TaskFavoriteRequest> = {
+	encode(message: TaskFavoriteRequest, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		if (message.metadata !== undefined) {
+			Metadata.encode(message.metadata, writer.uint32(10).fork()).join()
+		}
+		if (message.taskId !== "") {
+			writer.uint32(18).string(message.taskId)
+		}
+		if (message.isFavorited !== false) {
+			writer.uint32(24).bool(message.isFavorited)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): TaskFavoriteRequest {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseTaskFavoriteRequest()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 1: {
+					if (tag !== 10) {
+						break
+					}
+
+					message.metadata = Metadata.decode(reader, reader.uint32())
+					continue
+				}
+				case 2: {
+					if (tag !== 18) {
+						break
+					}
+
+					message.taskId = reader.string()
+					continue
+				}
+				case 3: {
+					if (tag !== 24) {
+						break
+					}
+
+					message.isFavorited = reader.bool()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): TaskFavoriteRequest {
+		return {
+			metadata: isSet(object.metadata) ? Metadata.fromJSON(object.metadata) : undefined,
+			taskId: isSet(object.taskId) ? globalThis.String(object.taskId) : "",
+			isFavorited: isSet(object.isFavorited) ? globalThis.Boolean(object.isFavorited) : false,
+		}
+	},
+
+	toJSON(message: TaskFavoriteRequest): unknown {
+		const obj: any = {}
+		if (message.metadata !== undefined) {
+			obj.metadata = Metadata.toJSON(message.metadata)
+		}
+		if (message.taskId !== "") {
+			obj.taskId = message.taskId
+		}
+		if (message.isFavorited !== false) {
+			obj.isFavorited = message.isFavorited
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<TaskFavoriteRequest>, I>>(base?: I): TaskFavoriteRequest {
+		return TaskFavoriteRequest.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<TaskFavoriteRequest>, I>>(object: I): TaskFavoriteRequest {
+		const message = createBaseTaskFavoriteRequest()
+		message.metadata =
+			object.metadata !== undefined && object.metadata !== null ? Metadata.fromPartial(object.metadata) : undefined
+		message.taskId = object.taskId ?? ""
+		message.isFavorited = object.isFavorited ?? false
+		return message
+	},
+}
+
+function createBaseTaskResponse(): TaskResponse {
+	return {
+		id: "",
+		task: "",
+		ts: 0,
+		isFavorited: false,
+		size: 0,
+		totalCost: 0,
+		tokensIn: 0,
+		tokensOut: 0,
+		cacheWrites: 0,
+		cacheReads: 0,
+	}
+}
+
+export const TaskResponse: MessageFns<TaskResponse> = {
+	encode(message: TaskResponse, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		if (message.id !== "") {
+			writer.uint32(18).string(message.id)
+		}
+		if (message.task !== "") {
+			writer.uint32(26).string(message.task)
+		}
+		if (message.ts !== 0) {
+			writer.uint32(32).int64(message.ts)
+		}
+		if (message.isFavorited !== false) {
+			writer.uint32(40).bool(message.isFavorited)
+		}
+		if (message.size !== 0) {
+			writer.uint32(48).int64(message.size)
+		}
+		if (message.totalCost !== 0) {
+			writer.uint32(57).double(message.totalCost)
+		}
+		if (message.tokensIn !== 0) {
+			writer.uint32(64).int32(message.tokensIn)
+		}
+		if (message.tokensOut !== 0) {
+			writer.uint32(72).int32(message.tokensOut)
+		}
+		if (message.cacheWrites !== 0) {
+			writer.uint32(80).int32(message.cacheWrites)
+		}
+		if (message.cacheReads !== 0) {
+			writer.uint32(88).int32(message.cacheReads)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): TaskResponse {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseTaskResponse()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 2: {
+					if (tag !== 18) {
+						break
+					}
+
+					message.id = reader.string()
+					continue
+				}
+				case 3: {
+					if (tag !== 26) {
+						break
+					}
+
+					message.task = reader.string()
+					continue
+				}
+				case 4: {
+					if (tag !== 32) {
+						break
+					}
+
+					message.ts = longToNumber(reader.int64())
+					continue
+				}
+				case 5: {
+					if (tag !== 40) {
+						break
+					}
+
+					message.isFavorited = reader.bool()
+					continue
+				}
+				case 6: {
+					if (tag !== 48) {
+						break
+					}
+
+					message.size = longToNumber(reader.int64())
+					continue
+				}
+				case 7: {
+					if (tag !== 57) {
+						break
+					}
+
+					message.totalCost = reader.double()
+					continue
+				}
+				case 8: {
+					if (tag !== 64) {
+						break
+					}
+
+					message.tokensIn = reader.int32()
+					continue
+				}
+				case 9: {
+					if (tag !== 72) {
+						break
+					}
+
+					message.tokensOut = reader.int32()
+					continue
+				}
+				case 10: {
+					if (tag !== 80) {
+						break
+					}
+
+					message.cacheWrites = reader.int32()
+					continue
+				}
+				case 11: {
+					if (tag !== 88) {
+						break
+					}
+
+					message.cacheReads = reader.int32()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): TaskResponse {
+		return {
+			id: isSet(object.id) ? globalThis.String(object.id) : "",
+			task: isSet(object.task) ? globalThis.String(object.task) : "",
+			ts: isSet(object.ts) ? globalThis.Number(object.ts) : 0,
+			isFavorited: isSet(object.isFavorited) ? globalThis.Boolean(object.isFavorited) : false,
+			size: isSet(object.size) ? globalThis.Number(object.size) : 0,
+			totalCost: isSet(object.totalCost) ? globalThis.Number(object.totalCost) : 0,
+			tokensIn: isSet(object.tokensIn) ? globalThis.Number(object.tokensIn) : 0,
+			tokensOut: isSet(object.tokensOut) ? globalThis.Number(object.tokensOut) : 0,
+			cacheWrites: isSet(object.cacheWrites) ? globalThis.Number(object.cacheWrites) : 0,
+			cacheReads: isSet(object.cacheReads) ? globalThis.Number(object.cacheReads) : 0,
+		}
+	},
+
+	toJSON(message: TaskResponse): unknown {
+		const obj: any = {}
+		if (message.id !== "") {
+			obj.id = message.id
+		}
+		if (message.task !== "") {
+			obj.task = message.task
+		}
+		if (message.ts !== 0) {
+			obj.ts = Math.round(message.ts)
+		}
+		if (message.isFavorited !== false) {
+			obj.isFavorited = message.isFavorited
+		}
+		if (message.size !== 0) {
+			obj.size = Math.round(message.size)
+		}
+		if (message.totalCost !== 0) {
+			obj.totalCost = message.totalCost
+		}
+		if (message.tokensIn !== 0) {
+			obj.tokensIn = Math.round(message.tokensIn)
+		}
+		if (message.tokensOut !== 0) {
+			obj.tokensOut = Math.round(message.tokensOut)
+		}
+		if (message.cacheWrites !== 0) {
+			obj.cacheWrites = Math.round(message.cacheWrites)
+		}
+		if (message.cacheReads !== 0) {
+			obj.cacheReads = Math.round(message.cacheReads)
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<TaskResponse>, I>>(base?: I): TaskResponse {
+		return TaskResponse.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<TaskResponse>, I>>(object: I): TaskResponse {
+		const message = createBaseTaskResponse()
+		message.id = object.id ?? ""
+		message.task = object.task ?? ""
+		message.ts = object.ts ?? 0
+		message.isFavorited = object.isFavorited ?? false
+		message.size = object.size ?? 0
+		message.totalCost = object.totalCost ?? 0
+		message.tokensIn = object.tokensIn ?? 0
+		message.tokensOut = object.tokensOut ?? 0
+		message.cacheWrites = object.cacheWrites ?? 0
+		message.cacheReads = object.cacheReads ?? 0
+		return message
+	},
+}
+
+function createBaseDeleteNonFavoritedTasksResults(): DeleteNonFavoritedTasksResults {
+	return { tasksPreserved: 0, tasksDeleted: 0 }
+}
+
+export const DeleteNonFavoritedTasksResults: MessageFns<DeleteNonFavoritedTasksResults> = {
+	encode(message: DeleteNonFavoritedTasksResults, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		if (message.tasksPreserved !== 0) {
+			writer.uint32(16).int32(message.tasksPreserved)
+		}
+		if (message.tasksDeleted !== 0) {
+			writer.uint32(24).int32(message.tasksDeleted)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): DeleteNonFavoritedTasksResults {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseDeleteNonFavoritedTasksResults()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 2: {
+					if (tag !== 16) {
+						break
+					}
+
+					message.tasksPreserved = reader.int32()
+					continue
+				}
+				case 3: {
+					if (tag !== 24) {
+						break
+					}
+
+					message.tasksDeleted = reader.int32()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): DeleteNonFavoritedTasksResults {
+		return {
+			tasksPreserved: isSet(object.tasksPreserved) ? globalThis.Number(object.tasksPreserved) : 0,
+			tasksDeleted: isSet(object.tasksDeleted) ? globalThis.Number(object.tasksDeleted) : 0,
+		}
+	},
+
+	toJSON(message: DeleteNonFavoritedTasksResults): unknown {
+		const obj: any = {}
+		if (message.tasksPreserved !== 0) {
+			obj.tasksPreserved = Math.round(message.tasksPreserved)
+		}
+		if (message.tasksDeleted !== 0) {
+			obj.tasksDeleted = Math.round(message.tasksDeleted)
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<DeleteNonFavoritedTasksResults>, I>>(base?: I): DeleteNonFavoritedTasksResults {
+		return DeleteNonFavoritedTasksResults.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<DeleteNonFavoritedTasksResults>, I>>(object: I): DeleteNonFavoritedTasksResults {
+		const message = createBaseDeleteNonFavoritedTasksResults()
+		message.tasksPreserved = object.tasksPreserved ?? 0
+		message.tasksDeleted = object.tasksDeleted ?? 0
+		return message
+	},
+}
+
+function createBaseGetTaskHistoryRequest(): GetTaskHistoryRequest {
+	return { metadata: undefined, favoritesOnly: false, searchQuery: "", sortBy: "" }
+}
+
+export const GetTaskHistoryRequest: MessageFns<GetTaskHistoryRequest> = {
+	encode(message: GetTaskHistoryRequest, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		if (message.metadata !== undefined) {
+			Metadata.encode(message.metadata, writer.uint32(10).fork()).join()
+		}
+		if (message.favoritesOnly !== false) {
+			writer.uint32(16).bool(message.favoritesOnly)
+		}
+		if (message.searchQuery !== "") {
+			writer.uint32(26).string(message.searchQuery)
+		}
+		if (message.sortBy !== "") {
+			writer.uint32(34).string(message.sortBy)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): GetTaskHistoryRequest {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseGetTaskHistoryRequest()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 1: {
+					if (tag !== 10) {
+						break
+					}
+
+					message.metadata = Metadata.decode(reader, reader.uint32())
+					continue
+				}
+				case 2: {
+					if (tag !== 16) {
+						break
+					}
+
+					message.favoritesOnly = reader.bool()
+					continue
+				}
+				case 3: {
+					if (tag !== 26) {
+						break
+					}
+
+					message.searchQuery = reader.string()
+					continue
+				}
+				case 4: {
+					if (tag !== 34) {
+						break
+					}
+
+					message.sortBy = reader.string()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): GetTaskHistoryRequest {
+		return {
+			metadata: isSet(object.metadata) ? Metadata.fromJSON(object.metadata) : undefined,
+			favoritesOnly: isSet(object.favoritesOnly) ? globalThis.Boolean(object.favoritesOnly) : false,
+			searchQuery: isSet(object.searchQuery) ? globalThis.String(object.searchQuery) : "",
+			sortBy: isSet(object.sortBy) ? globalThis.String(object.sortBy) : "",
+		}
+	},
+
+	toJSON(message: GetTaskHistoryRequest): unknown {
+		const obj: any = {}
+		if (message.metadata !== undefined) {
+			obj.metadata = Metadata.toJSON(message.metadata)
+		}
+		if (message.favoritesOnly !== false) {
+			obj.favoritesOnly = message.favoritesOnly
+		}
+		if (message.searchQuery !== "") {
+			obj.searchQuery = message.searchQuery
+		}
+		if (message.sortBy !== "") {
+			obj.sortBy = message.sortBy
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<GetTaskHistoryRequest>, I>>(base?: I): GetTaskHistoryRequest {
+		return GetTaskHistoryRequest.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<GetTaskHistoryRequest>, I>>(object: I): GetTaskHistoryRequest {
+		const message = createBaseGetTaskHistoryRequest()
+		message.metadata =
+			object.metadata !== undefined && object.metadata !== null ? Metadata.fromPartial(object.metadata) : undefined
+		message.favoritesOnly = object.favoritesOnly ?? false
+		message.searchQuery = object.searchQuery ?? ""
+		message.sortBy = object.sortBy ?? ""
+		return message
+	},
+}
+
+function createBaseTaskHistoryArray(): TaskHistoryArray {
+	return { tasks: [], totalCount: 0 }
+}
+
+export const TaskHistoryArray: MessageFns<TaskHistoryArray> = {
+	encode(message: TaskHistoryArray, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		for (const v of message.tasks) {
+			TaskItem.encode(v!, writer.uint32(18).fork()).join()
+		}
+		if (message.totalCount !== 0) {
+			writer.uint32(24).int32(message.totalCount)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): TaskHistoryArray {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseTaskHistoryArray()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 2: {
+					if (tag !== 18) {
+						break
+					}
+
+					message.tasks.push(TaskItem.decode(reader, reader.uint32()))
+					continue
+				}
+				case 3: {
+					if (tag !== 24) {
+						break
+					}
+
+					message.totalCount = reader.int32()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): TaskHistoryArray {
+		return {
+			tasks: globalThis.Array.isArray(object?.tasks) ? object.tasks.map((e: any) => TaskItem.fromJSON(e)) : [],
+			totalCount: isSet(object.totalCount) ? globalThis.Number(object.totalCount) : 0,
+		}
+	},
+
+	toJSON(message: TaskHistoryArray): unknown {
+		const obj: any = {}
+		if (message.tasks?.length) {
+			obj.tasks = message.tasks.map((e) => TaskItem.toJSON(e))
+		}
+		if (message.totalCount !== 0) {
+			obj.totalCount = Math.round(message.totalCount)
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<TaskHistoryArray>, I>>(base?: I): TaskHistoryArray {
+		return TaskHistoryArray.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<TaskHistoryArray>, I>>(object: I): TaskHistoryArray {
+		const message = createBaseTaskHistoryArray()
+		message.tasks = object.tasks?.map((e) => TaskItem.fromPartial(e)) || []
+		message.totalCount = object.totalCount ?? 0
+		return message
+	},
+}
+
+function createBaseTaskItem(): TaskItem {
+	return {
+		id: "",
+		task: "",
+		ts: 0,
+		isFavorited: false,
+		size: 0,
+		totalCost: 0,
+		tokensIn: 0,
+		tokensOut: 0,
+		cacheWrites: 0,
+		cacheReads: 0,
+	}
+}
+
+export const TaskItem: MessageFns<TaskItem> = {
+	encode(message: TaskItem, writer: BinaryWriter = new BinaryWriter()): BinaryWriter {
+		if (message.id !== "") {
+			writer.uint32(10).string(message.id)
+		}
+		if (message.task !== "") {
+			writer.uint32(18).string(message.task)
+		}
+		if (message.ts !== 0) {
+			writer.uint32(24).int64(message.ts)
+		}
+		if (message.isFavorited !== false) {
+			writer.uint32(32).bool(message.isFavorited)
+		}
+		if (message.size !== 0) {
+			writer.uint32(40).int64(message.size)
+		}
+		if (message.totalCost !== 0) {
+			writer.uint32(49).double(message.totalCost)
+		}
+		if (message.tokensIn !== 0) {
+			writer.uint32(56).int32(message.tokensIn)
+		}
+		if (message.tokensOut !== 0) {
+			writer.uint32(64).int32(message.tokensOut)
+		}
+		if (message.cacheWrites !== 0) {
+			writer.uint32(72).int32(message.cacheWrites)
+		}
+		if (message.cacheReads !== 0) {
+			writer.uint32(80).int32(message.cacheReads)
+		}
+		return writer
+	},
+
+	decode(input: BinaryReader | Uint8Array, length?: number): TaskItem {
+		const reader = input instanceof BinaryReader ? input : new BinaryReader(input)
+		let end = length === undefined ? reader.len : reader.pos + length
+		const message = createBaseTaskItem()
+		while (reader.pos < end) {
+			const tag = reader.uint32()
+			switch (tag >>> 3) {
+				case 1: {
+					if (tag !== 10) {
+						break
+					}
+
+					message.id = reader.string()
+					continue
+				}
+				case 2: {
+					if (tag !== 18) {
+						break
+					}
+
+					message.task = reader.string()
+					continue
+				}
+				case 3: {
+					if (tag !== 24) {
+						break
+					}
+
+					message.ts = longToNumber(reader.int64())
+					continue
+				}
+				case 4: {
+					if (tag !== 32) {
+						break
+					}
+
+					message.isFavorited = reader.bool()
+					continue
+				}
+				case 5: {
+					if (tag !== 40) {
+						break
+					}
+
+					message.size = longToNumber(reader.int64())
+					continue
+				}
+				case 6: {
+					if (tag !== 49) {
+						break
+					}
+
+					message.totalCost = reader.double()
+					continue
+				}
+				case 7: {
+					if (tag !== 56) {
+						break
+					}
+
+					message.tokensIn = reader.int32()
+					continue
+				}
+				case 8: {
+					if (tag !== 64) {
+						break
+					}
+
+					message.tokensOut = reader.int32()
+					continue
+				}
+				case 9: {
+					if (tag !== 72) {
+						break
+					}
+
+					message.cacheWrites = reader.int32()
+					continue
+				}
+				case 10: {
+					if (tag !== 80) {
+						break
+					}
+
+					message.cacheReads = reader.int32()
+					continue
+				}
+			}
+			if ((tag & 7) === 4 || tag === 0) {
+				break
+			}
+			reader.skip(tag & 7)
+		}
+		return message
+	},
+
+	fromJSON(object: any): TaskItem {
+		return {
+			id: isSet(object.id) ? globalThis.String(object.id) : "",
+			task: isSet(object.task) ? globalThis.String(object.task) : "",
+			ts: isSet(object.ts) ? globalThis.Number(object.ts) : 0,
+			isFavorited: isSet(object.isFavorited) ? globalThis.Boolean(object.isFavorited) : false,
+			size: isSet(object.size) ? globalThis.Number(object.size) : 0,
+			totalCost: isSet(object.totalCost) ? globalThis.Number(object.totalCost) : 0,
+			tokensIn: isSet(object.tokensIn) ? globalThis.Number(object.tokensIn) : 0,
+			tokensOut: isSet(object.tokensOut) ? globalThis.Number(object.tokensOut) : 0,
+			cacheWrites: isSet(object.cacheWrites) ? globalThis.Number(object.cacheWrites) : 0,
+			cacheReads: isSet(object.cacheReads) ? globalThis.Number(object.cacheReads) : 0,
+		}
+	},
+
+	toJSON(message: TaskItem): unknown {
+		const obj: any = {}
+		if (message.id !== "") {
+			obj.id = message.id
+		}
+		if (message.task !== "") {
+			obj.task = message.task
+		}
+		if (message.ts !== 0) {
+			obj.ts = Math.round(message.ts)
+		}
+		if (message.isFavorited !== false) {
+			obj.isFavorited = message.isFavorited
+		}
+		if (message.size !== 0) {
+			obj.size = Math.round(message.size)
+		}
+		if (message.totalCost !== 0) {
+			obj.totalCost = message.totalCost
+		}
+		if (message.tokensIn !== 0) {
+			obj.tokensIn = Math.round(message.tokensIn)
+		}
+		if (message.tokensOut !== 0) {
+			obj.tokensOut = Math.round(message.tokensOut)
+		}
+		if (message.cacheWrites !== 0) {
+			obj.cacheWrites = Math.round(message.cacheWrites)
+		}
+		if (message.cacheReads !== 0) {
+			obj.cacheReads = Math.round(message.cacheReads)
+		}
+		return obj
+	},
+
+	create<I extends Exact<DeepPartial<TaskItem>, I>>(base?: I): TaskItem {
+		return TaskItem.fromPartial(base ?? ({} as any))
+	},
+	fromPartial<I extends Exact<DeepPartial<TaskItem>, I>>(object: I): TaskItem {
+		const message = createBaseTaskItem()
+		message.id = object.id ?? ""
+		message.task = object.task ?? ""
+		message.ts = object.ts ?? 0
+		message.isFavorited = object.isFavorited ?? false
+		message.size = object.size ?? 0
+		message.totalCost = object.totalCost ?? 0
+		message.tokensIn = object.tokensIn ?? 0
+		message.tokensOut = object.tokensOut ?? 0
+		message.cacheWrites = object.cacheWrites ?? 0
+		message.cacheReads = object.cacheReads ?? 0
+		return message
+	},
+}
+
 export type TaskServiceDefinition = typeof TaskServiceDefinition
 export const TaskServiceDefinition = {
 	name: "TaskService",
@@ -156,7 +995,7 @@ export const TaskServiceDefinition = {
 			name: "showTaskWithId",
 			requestType: StringRequest,
 			requestStream: false,
-			responseType: Empty,
+			responseType: TaskResponse,
 			responseStream: false,
 			options: {},
 		},
@@ -169,6 +1008,33 @@ export const TaskServiceDefinition = {
 			responseStream: false,
 			options: {},
 		},
+		/** Toggles the favorite status of a task */
+		toggleTaskFavorite: {
+			name: "toggleTaskFavorite",
+			requestType: TaskFavoriteRequest,
+			requestStream: false,
+			responseType: Empty,
+			responseStream: false,
+			options: {},
+		},
+		/** Deletes all non-favorited tasks */
+		deleteNonFavoritedTasks: {
+			name: "deleteNonFavoritedTasks",
+			requestType: EmptyRequest,
+			requestStream: false,
+			responseType: DeleteNonFavoritedTasksResults,
+			responseStream: false,
+			options: {},
+		},
+		/** Gets filtered task history */
+		getTaskHistory: {
+			name: "getTaskHistory",
+			requestType: GetTaskHistoryRequest,
+			requestStream: false,
+			responseType: TaskHistoryArray,
+			responseStream: false,
+			options: {},
+		},
 	},
 } as const
 
@@ -189,6 +1055,17 @@ export type Exact<P, I extends P> = P extends Builtin
 	? P
 	: P & { [K in keyof P]: Exact<P[K], I[K]> } & { [K in Exclude<keyof I, KeysOfUnion<P>>]: never }
 
+function longToNumber(int64: { toString(): string }): number {
+	const num = globalThis.Number(int64.toString())
+	if (num > globalThis.Number.MAX_SAFE_INTEGER) {
+		throw new globalThis.Error("Value is larger than Number.MAX_SAFE_INTEGER")
+	}
+	if (num < globalThis.Number.MIN_SAFE_INTEGER) {
+		throw new globalThis.Error("Value is smaller than Number.MIN_SAFE_INTEGER")
+	}
+	return num
+}
+
 function isSet(value: any): boolean {
 	return value !== null && value !== undefined
 }

webview-ui/src/components/history/HistoryPreview.tsx

@@ -92,6 +92,18 @@ const HistoryPreview = ({ showHistoryView }: HistoryPreviewProps) => {
 										{formatDate(item.ts)}
 									</span>
 								</div>
+								{item.isFavorited && (
+									<div
+										style={{
+											position: "absolute",
+											top: "12px",
+											right: "12px",
+											color: "var(--vscode-button-background)",
+										}}>
+										<span className="codicon codicon-star-full" aria-label="Favorited" />
+									</div>
+								)}
+
 								<div
 									style={{
 										fontSize: "var(--vscode-font-size)",

webview-ui/src/components/history/HistoryView.tsx

@@ -24,6 +24,76 @@ const HistoryView = ({ onDone }: HistoryViewProps) => {
 	const [lastNonRelevantSort, setLastNonRelevantSort] = useState<SortOption | null>("newest")
 	const [deleteAllDisabled, setDeleteAllDisabled] = useState(false)
 	const [selectedItems, setSelectedItems] = useState<string[]>([])
+	const [showFavoritesOnly, setShowFavoritesOnly] = useState(false)
+
+	// Keep track of pending favorite toggle operations
+	const [pendingFavoriteToggles, setPendingFavoriteToggles] = useState<Record<string, boolean>>({})
+
+	// Load filtered task history with gRPC
+	const [filteredTasks, setFilteredTasks] = useState<any[]>([])
+
+	// Load and refresh task history
+	const loadTaskHistory = useCallback(async () => {
+		try {
+			const response = await TaskServiceClient.getTaskHistory({
+				favoritesOnly: showFavoritesOnly,
+				searchQuery: searchQuery || undefined,
+				sortBy: sortOption,
+			})
+			setFilteredTasks(response.tasks || [])
+		} catch (error) {
+			console.error("Error loading task history:", error)
+			// Fallback to client-side filtering
+			setFilteredTasks(
+				taskHistory.filter((item) => {
+					const valid = item.ts && item.task
+					return valid && (!showFavoritesOnly || item.isFavorited)
+				}),
+			)
+		}
+	}, [showFavoritesOnly, searchQuery, sortOption, taskHistory])
+
+	// Load when filters change
+	useEffect(() => {
+		loadTaskHistory()
+	}, [loadTaskHistory])
+
+	const toggleFavorite = useCallback(
+		async (taskId: string, currentValue: boolean) => {
+			// Optimistic UI update
+			setPendingFavoriteToggles((prev) => ({ ...prev, [taskId]: !currentValue }))
+
+			try {
+				await TaskServiceClient.toggleTaskFavorite({
+					taskId,
+					isFavorited: !currentValue,
+				})
+
+				// Refresh if favorites filter is active
+				if (showFavoritesOnly) {
+					loadTaskHistory()
+				}
+			} catch (err) {
+				console.error(`[FAVORITE_TOGGLE_UI] Error for task ${taskId}:`, err)
+				// Revert optimistic update
+				setPendingFavoriteToggles((prev) => {
+					const updated = { ...prev }
+					delete updated[taskId]
+					return updated
+				})
+			} finally {
+				// Clean up pending state after 1 second
+				setTimeout(() => {
+					setPendingFavoriteToggles((prev) => {
+						const updated = { ...prev }
+						delete updated[taskId]
+						return updated
+					})
+				}, 1000)
+			}
+		},
+		[showFavoritesOnly, loadTaskHistory],
+	)
 
 	const handleMessage = useCallback((event: MessageEvent<ExtensionMessage>) => {
 		if (event.data.type === "relinquishControl") {
@@ -87,9 +157,7 @@ const HistoryView = ({ onDone }: HistoryViewProps) => {
 			.toUpperCase()
 	}, [])
 
-	const presentableTasks = useMemo(() => {
-		return taskHistory.filter((item) => item.ts && item.task)
-	}, [taskHistory])
+	const presentableTasks = useMemo(() => filteredTasks, [filteredTasks])
 
 	const fuse = useMemo(() => {
 		return new Fuse(presentableTasks, {
@@ -252,7 +320,48 @@ const HistoryView = ({ onDone }: HistoryViewProps) => {
 							<VSCodeRadio value="mostRelevant" disabled={!searchQuery} style={{ opacity: searchQuery ? 1 : 0.5 }}>
 								Most Relevant
 							</VSCodeRadio>
+							<div
+								onClick={() => setShowFavoritesOnly(!showFavoritesOnly)}
+								style={{
+									display: "flex",
+									alignItems: "center",
+									marginLeft: "6px",
+									cursor: "pointer",
+								}}>
+								<div
+									style={{
+										width: "14px",
+										height: "14px",
+										borderRadius: "50%",
+										border: "1px solid var(--vscode-checkbox-border)",
+										backgroundColor: showFavoritesOnly ? "var(--vscode-checkbox-background)" : "transparent",
+										position: "relative",
+										display: "flex",
+										justifyContent: "center",
+										alignItems: "center",
+										marginRight: "6px",
+									}}>
+									{showFavoritesOnly && (
+										<div
+											style={{
+												width: "6px",
+												height: "6px",
+												borderRadius: "50%",
+												backgroundColor: "var(--vscode-checkbox-foreground)",
+											}}
+										/>
+									)}
+								</div>
+								<span style={{ display: "flex", alignItems: "center", gap: "6px", userSelect: "none" }}>
+									<div
+										className="codicon codicon-star-full"
+										style={{ color: "var(--vscode-button-background)", fontSize: "14px" }}
+									/>
+									Favorites
+								</span>
+							</div>
 						</VSCodeRadioGroup>
+
 						<div style={{ display: "flex", justifyContent: "flex-end", gap: "10px" }}>
 							<VSCodeButton
 								onClick={() => {
@@ -337,43 +446,80 @@ const HistoryView = ({ onDone }: HistoryViewProps) => {
 											}}>
 											{formatDate(item.ts)}
 										</span>
-										<VSCodeButton
-											appearance="icon"
-											onClick={(e) => {
-												e.stopPropagation()
-												handleDeleteHistoryItem(item.id)
-											}}
-											className="delete-button"
-											style={{ padding: "0px 0px" }}>
-											<div
-												style={{
-													display: "flex",
-													alignItems: "center",
-													gap: "3px",
-													fontSize: "11px",
-													// fontWeight: "bold",
-												}}>
-												<span className="codicon codicon-trash"></span>
-												{formatSize(item.size)}
-											</div>
-										</VSCodeButton>
+										<div style={{ display: "flex", gap: "4px" }}>
+											{/* only show delete button if task not favorited */}
+											{!(pendingFavoriteToggles[item.id] ?? item.isFavorited) && (
+												<VSCodeButton
+													appearance="icon"
+													onClick={(e) => {
+														e.stopPropagation()
+														handleDeleteHistoryItem(item.id)
+													}}
+													className="delete-button"
+													style={{ padding: "0px 0px" }}>
+													<div
+														style={{
+															display: "flex",
+															alignItems: "center",
+															gap: "3px",
+															fontSize: "11px",
+														}}>
+														<span className="codicon codicon-trash"></span>
+														{formatSize(item.size)}
+													</div>
+												</VSCodeButton>
+											)}
+											<VSCodeButton
+												appearance="icon"
+												onClick={(e) => {
+													e.stopPropagation()
+													toggleFavorite(item.id, item.isFavorited || false)
+												}}
+												style={{ padding: "0px" }}>
+												<div
+													className={`codicon ${
+														pendingFavoriteToggles[item.id] !== undefined
+															? pendingFavoriteToggles[item.id]
+																? "codicon-star-full"
+																: "codicon-star-empty"
+															: item.isFavorited
+																? "codicon-star-full"
+																: "codicon-star-empty"
+													}`}
+													style={{
+														color:
+															(pendingFavoriteToggles[item.id] ?? item.isFavorited)
+																? "var(--vscode-button-background)"
+																: "inherit",
+														opacity: (pendingFavoriteToggles[item.id] ?? item.isFavorited) ? 1 : 0.7,
+														display:
+															(pendingFavoriteToggles[item.id] ?? item.isFavorited)
+																? "block"
+																: undefined,
+													}}
+												/>
+											</VSCodeButton>
+										</div>
+									</div>
+
+									<div style={{ marginBottom: "8px", position: "relative" }}>
+										<div
+											style={{
+												fontSize: "var(--vscode-font-size)",
+												color: "var(--vscode-foreground)",
+												display: "-webkit-box",
+												WebkitLineClamp: 3,
+												WebkitBoxOrient: "vertical",
+												overflow: "hidden",
+												whiteSpace: "pre-wrap",
+												wordBreak: "break-word",
+												overflowWrap: "anywhere",
+											}}
+											dangerouslySetInnerHTML={{
+												__html: item.task,
+											}}
+										/>
 									</div>
-									<div
-										style={{
-											fontSize: "var(--vscode-font-size)",
-											color: "var(--vscode-foreground)",
-											display: "-webkit-box",
-											WebkitLineClamp: 3,
-											WebkitBoxOrient: "vertical",
-											overflow: "hidden",
-											whiteSpace: "pre-wrap",
-											wordBreak: "break-word",
-											overflowWrap: "anywhere",
-										}}
-										dangerouslySetInnerHTML={{
-											__html: item.task,
-										}}
-									/>
 									<div
 										style={{
 											display: "flex",