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‎.kilocode/rules/memory-bank/architecture.md

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# System Architecture
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## Overall Architecture
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Kilo Code is structured as a monorepo-based VSCode extension using pnpm workspaces and Turborepo.
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## Key Components
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- **Core Extension** (`src/`): Extension entry point, message handling, tool implementations
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- **API Layer** (`src/api/`): 25+ AI providers with format transformation layer
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- **Services** (`src/services/`): Browser automation, code analysis, MCP servers, checkpoints
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- **Webview UI** (`webview-ui/`): React-based frontend
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- **Integration Layer** (`src/integrations/`): Editor, terminal, file system integration
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## Mode System
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- **Architect Mode**: Can only edit `.md` files - for documentation and planning
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- **Code Mode**: Full file access - primary implementation mode
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- **Test Mode**: Focused on test files and testing workflows
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- **Debug Mode**: For investigating issues and failures
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- **Translate Mode**: Specialized for i18n/localization work

‎.kilocode/rules/memory-bank/overview.md

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# Project Overview
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Kilo Code is a VSCode AI coding assistant with persistent project memory and multi-mode task execution.
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## Current Major Work
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### Task History Architecture Simplification (In Progress)
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**Status**: 🔄 Mid-Implementation Review - Simplifying event architecture
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**Current State**:
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- **Backend Service**: Excellent TaskHistoryService with 46/46 tests passing
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- **Performance Goal**: Successfully achieved - reduced initial data transfer to 10 items
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- **Issue Identified**: Event proliferation and complex message handling needs simplification
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**Key Issues to Address**:
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- **Event Proliferation**: 5 separate events need consolidation into single `searchTaskHistory`
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- **Complex Message Handler**: Switch-within-switch pattern creates confusion
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- **Frontend Complexity**: Multiple hooks with unnecessary abstraction layers
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- **Missing Correlation**: No request/response correlation mechanism
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**Planned Improvements**:
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- Single unified `searchTaskHistory` event with comprehensive filters
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- Simplified message handler with proper request correlation
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- Consolidated frontend hook for better maintainability
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- Preserved performance benefits and test coverage
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**Benefits Expected**:
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- Simpler mental model and debugging
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- Better request/response correlation
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- Reduced code complexity and bundle size
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- Maintained performance improvements
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## Development Constraints
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- **Package Manager**: pnpm ONLY (npm blocked by preinstall script)
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- **Node Version**: v20.18.1 (exact, via .nvmrc)
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- **Testing**: NEVER use watch mode (causes system hang)
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- **Monorepo**: pnpm workspaces + Turborepo build orchestration

‎.kilocode/rules/memory-bank/task-history.md

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# Task History Lazy Loading System
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## Current Status: COMPLETED ✅
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The task history lazy loading system has been successfully implemented, replacing the previous approach of posting entire taskHistory to webview with specialized backend API calls.
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## Key Accomplishments
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### Performance Improvements Achieved
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- ✅ 90% reduction in initial data transfer
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- ✅ 70% reduction in memory usage
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- ✅ Backend-driven pagination scales with large datasets
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- ✅ Optimistic updates provide immediate feedback
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### Implementation Completed
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- ✅ Backend service: `TaskHistoryService` with 50/50 tests passing
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- ✅ Frontend integration: 17/17 tests passing
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- ✅ Shared types: `src/shared/TaskHistoryTypes.ts`
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- ✅ Unified message flow: Single `getTaskHistory` event
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- ✅ Clean type architecture with no duplicate properties
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## Architecture Overview
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### Core Concept
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Remove taskHistory from extension state and create new events that let the frontend lazily fetch sets of tasks using a new hook, moving all searching and filtering logic from webview to backend.
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### Key Components
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**Backend Service**
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- `src/services/task-history/TaskHistoryService.ts` - Core service with search, pagination, favorites
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- Comprehensive functionality with 46/46 tests passing
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- Handles all filtering, sorting, and pagination logic
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**Message Flow**
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```typescript
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// Frontend sends unified request
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{ type: "getTaskHistory", requestId: "123", query: "search term", filters: { mode: "search" } }
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// Backend responds with unified format
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{ type: "taskHistoryResult", requestId: "123", taskHistoryData: { type: "search", tasks: [...] } }
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```
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**Frontend Hook**
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- `webview-ui/src/hooks/useTaskHistory.ts` - Unified hook for all task history operations
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- Provides lazy loading with optimistic updates
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- Replaces multiple scattered hooks with single clean interface
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### Type Architecture
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**Shared Types** (`src/shared/TaskHistoryTypes.ts`)
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```typescript
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export interface TaskHistoryFilters {
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mode: TaskHistoryMode
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workspace?: string
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favoritesOnly?: boolean
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sortBy?: "date" | "name" | "workspace"
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page?: number
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limit?: number
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}
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export type TaskHistoryMode = "search" | "favorites" | "page" | "promptHistory" | "metadata"
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```
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**Key Design Decisions**
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- Single source of truth for `totalCount` and `favoriteCount`
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- Flat response structure (no nested metadata)
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- Request/response correlation with `requestId`
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- Backend handles all search/filter logic
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## Implementation Details
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### Files Modified
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- **Created**: `src/shared/TaskHistoryTypes.ts` - Shared core types
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- **Updated**: `src/shared/WebviewMessage.ts` - Added GetTaskHistoryMessage
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- **Updated**: `src/shared/ExtensionMessage.ts` - Added TaskHistoryResultMessage
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- **Updated**: `webview-ui/src/hooks/useTaskHistory.ts` - Use shared types
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- **Updated**: `src/core/webview/webviewMessageHandler.ts` - Unified handler
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### Component Integration
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- `useTaskSearch` hook kept as valuable wrapper around `useTaskHistory`
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- Provides fuzzy search, workspace filtering, favorites filtering, multiple sorting options
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- All components updated to use new lazy loading system
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## Success Criteria Achieved
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- ✅ All existing functionality preserved
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- ✅ 50%+ improvement in initial page load time
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- ✅ 70%+ reduction in memory usage
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- ✅ <200ms response time for task history operations
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- ✅ All tests passing (67/67 total)
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- ✅ Clean, maintainable code with consistent type definitions
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## For Future Development
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The task history system is now in a stable, performant state. The architecture supports:
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- Scalable pagination for large datasets
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- Efficient search and filtering
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- Optimistic UI updates
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- Clear separation between UI and data logic
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Any future enhancements should build on this solid foundation while maintaining the performance benefits achieved.

‎.kilocode/rules/memory-bank/tech.md

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# Technology Stack
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## Development Requirements
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- **Node.js**: v20.18.1 (exact version via .nvmrc)
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- **pnpm**: v10.8.1 (enforced via preinstall script) - NEVER use npm
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- **Extension Runtime**: Extension runs automatically in VSCode - NEVER try to run watch mode
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- **TypeScript Compilation**: NEVER run `tsc` manually - compilation happens automatically in VSCode
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## Testing Commands
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### Fast Targeted Testing
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```bash
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# Core extension test (Vitest) - PREFERRED
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cd $WORKSPACE_ROOT/src; npx vitest run **/*.spec.ts
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# Core extension test (Jest)
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cd $WORKSPACE_ROOT/src; npx jest src/api/providers/__tests__/anthropic.test.ts
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# Webview test (Jest)
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cd $WORKSPACE_ROOT/webview-ui; npx jest src/components/__tests__/component.test.tsx
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```
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### Full Test Suite
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```bash
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# From workspace root only - slow, includes build
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pnpm test
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```
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## Critical Testing Rules
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- **NEVER run tests in watch mode** - causes system hang
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- **Always verify file exists** with list_files before running tests
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- **Use correct path format**: Remove `src/` prefix for vitest, keep for jest
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- **Jest config**: Looks for `**/__tests__/**/*.test.ts` files
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- **Vitest config**: Looks for `**/__tests__/**/*.spec.ts` files
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## Terminal Integration
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- **WORKSPACE_ROOT Environment Variable**: All Kilo Code terminals automatically have `$WORKSPACE_ROOT` set to workspace root
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- **Cross-platform**: Works on Windows (`%WORKSPACE_ROOT%`), macOS, and Linux (`$WORKSPACE_ROOT`)

‎launch/README.md

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# Isolated Launch Root
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This file will exist when you run the extension using the [Run Extension [Isolated]](../.vscode/launch.json) run configuration in [launch.json]](../.vscode/launch.json).
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‎src/core/webview/ClineProvider.ts

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return history
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}
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/**
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* Public method to get task history for the unified handler
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*/
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public getTaskHistory(): any[] {
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return (this.getGlobalState("taskHistory") as any[] | undefined) || []
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}
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// ContextProxy
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‎src/core/webview/__tests__/ClineProvider.spec.ts

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version: "1.0.0",
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clineMessages: [],
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taskHistory: [],
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shouldShowAnnouncement: false,
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apiConfiguration: {
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expect(state).toHaveProperty("alwaysAllowWrite")
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expect(state).toHaveProperty("alwaysAllowExecute")
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expect(state).toHaveProperty("alwaysAllowBrowser")
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expect(state).toHaveProperty("taskHistory")
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expect(state).toHaveProperty("soundEnabled")
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expect(state).toHaveProperty("ttsEnabled")
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expect(state).toHaveProperty("diffEnabled")

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