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DelphiMCP

MCP server for Delphi Application debugging and automation from AI side

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README

DelphiMCP - Delphi Model Context Protocol Framework

A work-in-progress framework for building MCP (Model Context Protocol) servers in Delphi

✅ Version 3.3.0 - Enhanced Modal Support Modal window automation now supported with {SPACE} key and enhanced focus detection. See CHANGELOG.md for details.

Overview

DelphiMCP is a work-in-progress Generic VCL Automation Framework for Delphi applications, enabling AI-driven automation via the Model Context Protocol (MCP).

What This Is:

Automation Framework: 30 professional tools for VCL automation (visual inspection, control interaction, keyboard/mouse, synchronization)
MCP Bridge: Connects framework to Claude Code via HTTP/SSE and named pipes
In Development: Being developed alongside CyberMAX ERP system
Self-Contained: No external dependencies beyond Delphi RTL/VCL

Current Status:

✅ Modal window support - Non-VCL dialogs (MessageDlg, TOpenDialog) now supported with {SPACE} key
✅ Enhanced focus detection - ui_focus_get now shows button captions and control types
✅ 3-tier focus management - Reliable window activation on Windows 11
⚠️ Work in progress - Some edge cases may require manual intervention

Architecture Components

This repository contains three main components:

AutomationTools (Primary Product)
- Location: Source/AutomationTools/
- 2-Package Architecture:
  - AutomationBridge (13 infrastructure units): Config, logging, registry, server, utilities
  - AutomationTools (30 automation tools): Visual inspection, control interaction, keyboard/mouse, synchronization
- Named pipe server with JSON-RPC
- Self-contained VCL automation (~6,000 lines)
- Thread-safe VCL interaction
- Works with ANY Delphi VCL application
MCPBridge
- Location: Source/MCPbridge/
- HTTP/SSE server (connects to Claude Code)
- Dynamic tool proxy (forwards calls via named pipes)
- 9 additional utility tools (debug capture, etc.)
- Built on Delphi-MCP-Server framework
Example Application
- Location: Examples/SimpleVCLApp/
- Demonstrates framework integration
- Shows typical usage pattern
- Ready to run and test

Key Features

✅ 30 Automation Tools - Visual inspection, control interaction, keyboard/mouse, synchronization
✅ Modal Window Support - Non-VCL dialogs (MessageDlg, TOpenDialog) fully supported
✅ Enhanced Focus Detection - ui_focus_get shows button captions and control types (v3.3.0)
✅ {SPACE} Key Support - Proper button activation in Windows dialogs (v3.3.0)
✅ Self-Contained - No external dependencies beyond Delphi RTL/VCL
✅ Easy Integration - 2-line setup: RegisterCoreAutomationTools; StartAutomationServer;
✅ Thread-Safe - All VCL access via TThread.Synchronize
✅ Extensible - Add custom tools easily
✅ HTTP/MCP Bridge - Connects to Claude Code seamlessly

Tool Categories

Visual Inspection (9 tools): take-screenshot, get-form-info, list-open-forms, list-controls, find-control, get-control, ui_get_tree_diff, ui_focus_get, ui_value_get

Control Interaction (7 tools): set-control-value, ui_set_text_verified, click-button, select-combo-item, select-tab, close-form, set-focus

Keyboard/Mouse (5 tools): ui_send_keys, ui_mouse_move, ui_mouse_click, ui_mouse_dblclick, ui_mouse_wheel

Synchronization (4 tools): wait_idle, wait_focus, wait_text, wait_when

Development (2 tools): analyze-form-taborder, list-focusable-forms

Utility (2 tools): echo, list-tools

Bridge Tools (9 tools): Debug capture tools, connectivity tests

Quick Integration

Minimal integration (2 lines):

pascal

uses AutomationServer, AutomationCoreTools;
begin
  Application.Initialize;
  Application.CreateForm(TfmMain, fmMain);

  RegisterCoreAutomationTools;  // Register 30 tools
  StartAutomationServer;        // Start server

  Application.Run;
end.

Dependencies

Required:

Delphi 12 (RAD Studio 12 Athens) or later
Delphi-MCP-Server framework (for bridge component)
- Repository: https://github.com/GDKsoftware/delphi-mcp-server
- Local path: /mnt/w/Delphi-MCP-Server/
- HTTP/SSE server (using Indy, included with Delphi)
- MCP protocol handling (JSON-RPC 2.0)

No Other Dependencies:

AutomationFramework is self-contained (RTL/VCL only)
No external libraries or components required

Quick Start in 5 Minutes

Get DelphiMCP running with Claude Code in just a few steps:

Step 1: Clone the Repository

bash

git clone https://github.com/JavierusTk/DelphiMCP.git
cd DelphiMCP

Step 2: Configure Dependencies

Install Delphi-MCP-Server framework
Update paths in Packages/DelphiMCP.dpk (see Packages/CONFIGURATION.md)

Step 3: Build the Bridge Server

bash

# Open in Delphi IDE
Source/MCPserver/DelphiMCPserver.dproj

# Or compile from command line
cd Source/MCPserver
dcc32 DelphiMCPserver.dpr

Step 4: Run the Server

bash

cd Binaries
./DelphiMCPserver.exe

Step 5: Connect Claude Code

Add the MCP server from the command line:

bash

# Add DelphiMCP server to Claude Code configuration
claude mcp add delphi-mcp http://localhost:3001/mcp -t http

Test it: Ask Claude Code: "List available tools from delphi-mcp"

Compatibility

Component	Version	Status	Notes
Delphi	12 (29.0)	✅ Tested	RAD Studio 12 Athens
Delphi	11	⚠️ Not tested	Should work, not verified
Delphi	10.4+	⚠️ Not tested	May work with adjustments
Windows	10 (1809+)	✅ Supported	Requires Windows 10 or later
Windows	11	✅ Supported	Fully tested
Windows Server	2019+	✅ Supported	Named pipes supported
Indy	10.6+	✅ Required	Included with Delphi
MCP Protocol	2024-11-05	✅ Supported	Latest specification

Platform Notes

Named pipes are Windows-specific - This framework requires Windows
Indy is bundled with Delphi - No separate installation needed
64-bit compilation supported (Win64 platform)

Detailed Setup

Prerequisites

Delphi 12 (RAD Studio 12) or later
Windows (named pipes are Windows-specific)
Delphi-MCP-Server framework
- Repository: https://github.com/GDKsoftware/delphi-mcp-server
- Provides HTTP/SSE server using Indy (included with Delphi)
Target Application with MCP server implementation (your Delphi application)

Running DelphiMCPserver

Start your target application (with MCP server enabled)
Run the bridge server:
bash
```
cd Binaries
./DelphiMCPserver.exe
```

Configure Claude Code:

bash

claude mcp add delphi-mcp http://localhost:3001/mcp -t http

Test the connection:

pascal

Claude, can you list the available tools?

Architecture

pascal

Claude Code (AI Assistant)
       ??? MCP Protocol (HTTP/SSE)
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
??? DelphiMCPserver.exe                     ???
???                                         ???
???  ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???
???  ??? Delphi-MCP-Server (HTTP/Protocol)  ??? ???
???  ???  - HTTP/SSE Server (Indy)          ??? ???
???  ???  - MCP JSON-RPC 2.0 handling       ??? ???
???  ???  - Tool/Resource management        ??? ???
???  ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???
???               ???                         ???
???  ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???
???  ??? DelphiMCP (Tools & Proxy)          ??? ???
???  ???  - Dynamic proxy logic             ??? ???
???  ???  - Named pipe client               ??? ???
???  ???  - Debug capture engine            ??? ???
???  ???  - 9 built-in tools                ??? ???
???  ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
       ??? Named Pipe (\\.\pipe\YourApp_MCP_Request)
Target Application (your Delphi application)
       ??? JSON-RPC 2.0
Internal MCP Server (embedded in target)

Dependency Structure:

DelphiMCPserver.exe = Delphi-MCP-Server (HTTP layer) + DelphiMCP (tools/proxy layer)
Indy HTTP Server (included with Delphi) provides HTTP/SSE transport
Named pipes provide IPC with target Delphi application

See Documentation/ARCHITECTURE.md for detailed architecture.

Installation

Option 1: Use as Package

Install the DelphiMCP package in your Delphi IDE:

pascal

1. Open Packages/DelphiMCP.dpk in Delphi
2. Build the package
3. Add to your project's required packages

See Packages/README.md for detailed installation instructions.

Option 2: Direct Source Usage (Recommended)

Add the MCPautomationBridge package to your project:

pascal

Project ??? Options ??? Packages ??? Runtime Packages
Add: MCPautomationBridge

Or add source directories to search path:
$(DelphiMCP)\Source\MCPbridge\Core;$(DelphiMCP)\Source\MCPbridge\Tools

Core Components

MCPautomationBridge Package (Source/MCPbridge/)

The automation bridge library that connects Delphi applications to MCP servers.

Core Components (Source/MCPbridge/Core/):

MCPServer.Application.DynamicProxy.pas - Dynamic proxy for tool discovery
MCPServer.Application.PipeClient.pas - Named pipe client for target application
MCP.Tool.Adapter.Indy.pas - Adapter for SharedTools integration

Shared Tools (from DelphiMCPbridge/Source/SharedTools/):

Backend-agnostic tools shared between Indy and mORMot servers:

mcp_hello - Test connectivity
mcp_echo - Echo messages (with optional uppercase)
mcp_time - Get system time with formatting
start_debug_capture - Begin capturing debug output
get_debug_messages - Retrieve captured messages with filtering
stop_debug_capture - Stop capture session
get_capture_status - Get capture session statistics
pause_resume_capture - Pause/resume capture
get_process_summary - Process statistics

See also: DelphiMCPbridge for the shared tools implementation.

Debug Capture Features

The framework includes a powerful debug output capture system:

pascal

// Start capturing debug output from all processes
start_debug_capture

// Filter by process name
get_debug_messages(processname="YourApp.exe")

// Filter by message content
get_debug_messages(messagecontains="[ERROR]")

// Filter by regex pattern
get_debug_messages(messageregex="\\[MCP\\].*")

// Get statistics
get_process_summary

See Documentation/DEBUG-CAPTURE.md for complete documentation.

Extending the Framework

Adding Custom Tools

Create a new unit in Source/Tools/:

pascal

unit MCPServer.Tool.MyCustomTool;

interface

uses MCPServer.Types;

procedure RegisterMyCustomTool(Server: TMCPServer);

implementation

procedure RegisterMyCustomTool(Server: TMCPServer);
begin
  Server.RegisterTool('my-custom-tool',
    procedure(Params: TJSONObject; out Result: TJSONObject)
    begin
      // Your tool implementation
    end,
    'Description of my custom tool'
  );
end;

end.

pascal

MCPServer.Tool.MyCustomTool.RegisterMyCustomTool(Server);

Connecting to Different Applications

Modify MCPServer.Application.PipeClient.pas pipe name:

pascal

const
  PIPE_NAME = '\\.\pipe\MyApp_MCP_Request';

Configuration

Edit Examples/DelphiMCPserver/settings.ini:

ini

[Server]
Port=3001
Host=localhost
Name=delphi-auto
Version=2.1.0
Endpoint=/mcp

[CORS]
Enabled=1
AllowedOrigins=http://localhost,http://127.0.0.1,https://localhost,https://127.0.0.1

Examples

DelphiMCPserver

Complete MCP bridge example for Delphi applications.

Features:

HTTP server on port 3001
Named pipe communication (configurable)
All 9 built-in tools registered
Debug capture enabled

Location: Examples/DelphiMCPserver/

Note: The example uses \\.\pipe\YourApp_MCP_Request as the default pipe name. Modify this in the source to match your application's pipe name.

Documentation

Core Documentation

ARCHITECTURE.md - Framework architecture and design
DYNAMIC-PROXY.md - Dynamic proxy implementation details
DEBUG-CAPTURE.md - Debug capture system documentation
SETUP-GUIDE.md - Complete setup and configuration guide
IMPLEMENTATION.md - Implementation history and decisions
CONTROL-PATHS-AND-MODALS.md - Control path resolution and modal window support (v2.2)
NEXT-STEPS.md - Development roadmap and priorities

Research Documents

ELEVATED-HELPER-RESEARCH.md - Research on UIAccess/admin helper applications for Windows 11 focus management (conclusion: not recommended)
WINDOWS-SERVICE-FOCUS-RESEARCH.md - Windows Service approach analysis
FOCUS-SOLUTIONS-COMPARISON.md - Comparison of focus management solutions

Development Examples

This framework is being actively developed and tested with real-world applications.

Development Use Case: CyberMAX ERP

DelphiMCP is being developed alongside the CyberMAX ERP system for AI automation:

Scale:

28 core tools (via target application)
9 bridge tools (debug capture, echo, time)
413 operations accessible via execute-internal
100+ commands via command processor

Current Status:

✅ Non-modal form control and inspection working
⚠️ Modal dialogs cause blocking (under development)
✅ 70% token optimization for efficient API usage
⚠️ Not yet production-ready due to modal window limitation

Note: CyberMAX is a private system. This framework is being developed alongside it and generalized for public use.

Testing

bash

# Build the example
cd /mnt/w/Public/DelphiMCP/Examples/DelphiMCPserver/
# Use compiler-agent to compile

# Run tests
cd /mnt/w/Public/DelphiMCP/Binaries/
./DelphiMCPserver.exe

# Test with curl
curl http://localhost:3001/mcp

Requirements

Development

Delphi 12 (RAD Studio 12) or later
Windows 10/11
Delphi-MCP-Server framework (required dependency)
- Located at: /mnt/w/Delphi-MCP-Server/
- Provides: HTTP/SSE server, MCP protocol, tool management
- Uses: Indy (included with Delphi)

Runtime

Windows 10/11
Delphi-MCP-Server binaries
Target application with MCP server implementation (your Delphi application)
Network port 3001 available (configurable via settings.ini)

License

This project is licensed under the Mozilla Public License 2.0 (MPL-2.0). See LICENSE file for full details.

Community & Support

Getting Help

📖 Documentation: Start with Documentation/ for comprehensive guides
🐛 Bug Reports: Open an issue with the bug report template
💡 Feature Requests: Suggest a feature
❓ Questions: Ask a question or check existing issues
💬 Discussions: Join GitHub Discussions for general topics

Contributing

We welcome contributions! See CONTRIBUTING.md for guidelines on:

Reporting issues
Submitting pull requests
Code style and testing requirements
Development workflow

Staying Updated

⭐ Star this repository to show support and stay updated
👀 Watch releases for new versions and features
🔔 Watch the repository for notifications on issues and PRs

Success Stories

Using DelphiMCP in production? We'd love to hear about it! Open an issue or discussion to share your experience.

Version

Current Version: v3.2.0 (2025-10-12)

Credits

Originally developed for CyberMAX ERP, now available as a general framework for connecting AI assistants to Delphi applications via the Model Context Protocol.

Key Technologies:

Model Context Protocol (MCP) - https://modelcontextprotocol.io/
Delphi-MCP-Server - HTTP/SSE server implementation
Windows Named Pipes - IPC with target application
Claude Code - AI coding assistant integration

Known Limitations

Critical Issues

⚠️ Modal Windows Not Supported: The framework currently blocks when a modal form is displayed via ShowModal(). This affects:
- Message boxes (ShowMessage, MessageDlg, etc.)
- Modal dialogs (forms shown with ShowModal)
- Any blocking UI operations
- Impact: This is a critical limitation that prevents production use in many scenarios

Minor Limitations

Single Connection: Named pipe supports only one connection per pipe (no multi-connection support)
Windows Only: Named pipes are Windows-specific (cross-platform support not planned)
Manual Restart: Bridge server requires manual restart when target application restarts

Roadmap

The modal window issue is the primary development focus. Once resolved, the framework will be considered production-ready.

Status: ⚠️ Work in Progress (Modal windows not supported) Version: 3.2 Last Updated: 2025-10-12

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DDelphiMCP

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README

DelphiMCP - Delphi Model Context Protocol Framework

Overview

Architecture Components

Key Features

Tool Categories

Quick Integration

Dependencies

Quick Start in 5 Minutes

Step 1: Clone the Repository

Step 2: Configure Dependencies

Step 3: Build the Bridge Server

Step 4: Run the Server

Step 5: Connect Claude Code

Compatibility

Platform Notes

Detailed Setup

Prerequisites

Running DelphiMCPserver

Architecture

Installation

Option 1: Use as Package

Option 2: Direct Source Usage (Recommended)

Core Components

MCPautomationBridge Package (Source/MCPbridge/)

Debug Capture Features

Extending the Framework

Adding Custom Tools

Connecting to Different Applications

Configuration

Examples

DelphiMCPserver

Documentation

Core Documentation

Research Documents

Development Examples

Development Use Case: CyberMAX ERP

Testing

Requirements

Development

Runtime

License

Community & Support

Getting Help

Contributing

Staying Updated

Success Stories

Version

Credits

Known Limitations

Critical Issues

Minor Limitations

Roadmap

DelphiMCP