DnSpy FAQs

Question 1

Does DnSpy MCP Server provide safety features for patching .NET assemblies?

Accepted Answer

Yes, safety is a priority for all patching operations. The server's patching tools are designed to always create a backup of the original assembly before writing any changes. This ensures that your original files are protected and allows for safe experimentation and modification.

Question 2

What is DnSpy MCP Server?

Accepted Answer

DnSpy MCP Server is a C#-based server designed to enable programmatic interaction and automation of .NET reverse engineering workflows. It integrates with the dnSpy and ILSpy ecosystems, exposing a suite of tools via the MCP (Model-Controller-Presenter) protocol.

Question 3

Which AI clients are compatible with DnSpy MCP Server?

Accepted Answer

The server utilizes the MCP stdio transport, ensuring compatibility with leading AI code assistants. This includes popular platforms like Claude Code, Codex, and OpenCode, facilitating seamless integration into your automated development and analysis environments.

Question 4

What types of operations can I perform on .NET assemblies using this server?

Accepted Answer

You can perform a wide range of operations including listing types and methods, decompiling source code, retrieving method IL, searching for members and string literals, and patching IL instructions (e.g., NOPing instructions or replacing string literals). Outputs are navigation-friendly, providing metadata tokens for direct jumps in dnSpy.

Question 5

How does DnSpy MCP Server enhance .NET reverse engineering workflows?

Accepted Answer

It allows developers and reverse engineers to automate complex tasks such as decompiling types and methods, searching for specific members or string references, and even patching IL instructions. This programmatic control, especially when integrated with AI code assistants, streamlines analysis and modification processes.

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