MCP Delphi Build Server

An MCP (Model Context Protocol) server that exposes tools to build and clean Delphi projects (.dproj/.groupproj) on Windows using MSBuild, initializing the RAD Studio environment via rsvars.bat.

Prerequisites

• Windows
• Node.js >= 18
• Embarcadero RAD Studio installed (for rsvars.bat and Delphi toolchain)
• MSBuild available (Visual Studio Build Tools or from RAD Studio toolchain)

Installation

pnpm install
pnpm run build

Or with npm:

npm install
npm run build

Configuration

You can configure defaults via environment variables (use an .env file in this directory if you want):

• RSVARS_BAT: Full path to rsvars.bat (e.g., C:\Program Files (x86)\Embarcadero\Studio\23.0\bin\rsvars.bat)
• MSBUILD_PATH: Full path to msbuild.exe if not in PATH
• DELPHI_CONFIG: Default config (Debug/Release). Default: Release
• DELPHI_PLATFORM: Default platform (Win32/Win64). Default: Win32

Create a .env file like:

RSVARS_BAT=C:\Program Files (x86)\Embarcadero\Studio\23.0\bin\rsvars.bat
MSBUILD_PATH=C:\Program Files\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\MSBuild.exe
DELPHI_CONFIG=Release
DELPHI_PLATFORM=Win32

Running

This server speaks MCP over stdio. Start it with:

node --env-file=.env dist/server.js

Or, after installing globally (or as a dependency), run the bin:

mcp-delphi-server

During development:

pnpm run dev

Tools

• delphi.build
  • params: project (string, path to .dproj/.groupproj), configuration? (string), platform? (string), msbuildPath? (string), rsvarsPath? (string)
  • Builds the project using MSBuild. If rsvarsPath (or RSVARS_BAT env) is provided, it will be called before MSBuild in a single shell.
• delphi.clean
  • params: same as delphi.build
  • Cleans the project.
• fpc.build
  • params: source (string, path to .lpr/.pas), output? (string), defines? (string[]), unitPaths? (string[]), includePaths? (string[]), cpu? (string), os? (string), fpcPath? (string)
  • Compiles a Pascal program using Free Pascal Compiler. You can pass an explicit fpcPath or rely on PATH.
• lazarus.build
  • params: project (string, path to .lpi), buildMode? (string), cpu? (string), os? (string), lazbuildPath? (string)
  • Builds a Lazarus project using lazbuild. Optionally set CPU/OS or build mode.
• lazarus.clean
  • params: project (string, path to .lpi), lazbuildPath? (string)
  • Cleans Lazarus build artifacts via lazbuild --clean.

Test projects and scripts

This repo includes small Delphi test projects in test/projects, and a Lazarus sample in test/projects/lazarus. Helper scripts live in scripts/.

• Build all Release targets:
  • pnpm run test:build:all
• Build individually (examples):
  • pnpm run test:build:console:win32