Command Palette and MCP Tool Integration Review

This document reviews the command palette and MCP tool invocation system, comparing it with existing client tools and ensuring proper integration across all components.

1. Dead Import: StreamingChat.tsx imported non-existent CommandPalette.tsx
2. Client Tools Not Exposed: Command palette only showed MCP tools/prompts, missing client-side tools
3. Inconsistent Tool Discovery: Client tools weren't discoverable via / command interface
4. Missing Integration: MCP Status component didn't show client tools

• File: /frontend/components/StreamingChat.tsx
• Change: Removed import for non-existent CommandPalette.tsx

• File: /frontend/components/EnhancedCommandPalette.tsx
• Changes:
  • Added import for CLIENT_TOOLS from clientTools.ts
  • Extended CommandType to include "client_tool"
  • Added ClientToolCommand interface
  • Modified command initialization to include client tools first (higher priority)
  • Added executeClientTool function for client tool execution
  • Enhanced filtering to support client: prefix searches
  • Updated UI rendering with laptop icon for client tools
  • Added proper argument handling for client tool schemas

• File: /frontend/components/MCPStatus.tsx
• Changes:
  • Added import for CLIENT_TOOLS
  • Updated status text to include client tools count
  • Added dedicated "Client Tools" section in status details
  • Shows all available client tools with descriptions and schemas

• File: /README.md
• Change: Updated command palette description to mention client-side tools

The enhanced command palette now provides unified access to:

1. Client-Side Tools (highest priority)

   • ask_user - Interactive user input with multiple types
   • calculate - Mathematical expression evaluation
   • js_exec - JavaScript code execution
   • Icon: 💻 (laptop)
   • Server: "Client"

2. MCP Prompts

   • Server-provided prompts with arguments
   • Icon: 💬 (comment)
   • Server: Actual server name

3. MCP Tools

   • Server-provided tools with input schemas
   • Icon: 🔨 (hammer)
   • Server: Actual server name

Users can filter commands using:

• Name matching: /ask finds ask_user
• Description matching: /calc finds calculate
• Type prefixes:
  • /client: - Shows only client tools
  • /tool: - Shows MCP and client tools
  • /prompt: - Shows only MCP prompts

1. Client Tools: Execute directly in browser with client_tool_use blocks
2. MCP Tools: Execute via MCP client pool with mcp_tool_use blocks
3. MCP Prompts: Fetch and insert prompt text into chat input

The MCP Status component now shows:

• Client tools count in summary
• Dedicated "Client Tools" section with full details
• Combined tool count (MCP + client tools)

• Single / interface for all available tools and prompts
• Consistent UI across tool types
• Clear visual distinction with appropriate icons

• Client tools appear first (higher priority for common operations)
• Comprehensive search and filtering
• Proper argument handling for all tool types

• Users can see all available tools in one place
• Clear separation between client and server capabilities
• Detailed schema information for debugging

• All tools follow same execution pattern
• Unified error handling
• Proper integration with existing MCP client pool

1. Command Palette:

   • Type / to verify all tools appear
   • Test filtering with client:, tool:, prompt: prefixes
   • Verify client tools appear first in list
   • Test argument dialogs for each tool type

2. MCP Status:

   • Verify client tools section appears
   • Check tool counts include client tools
   • Ensure client tools show proper schemas

3. Tool Execution:

   • Test client tool execution (ask_user, calculate, js_exec)
   • Verify proper error handling
   • Check tool result formatting

1. Tool Categories: Group tools by functionality
2. Favorites: Allow users to pin frequently used tools
3. Recent Tools: Show recently used tools at top
4. Tool Help: Inline help and examples for each tool
5. Custom Client Tools: Allow users to define custom client-side tools

The command palette now provides a unified, comprehensive interface for all available tools and prompts. Client tools are properly integrated and discoverable, with consistent UI patterns and execution flows. The MCP Status component provides complete visibility into all available capabilities.

The architecture maintains separation of concerns while providing a seamless user experience across client-side and server-side tools.