.NET P/Invoke skill: what it does and how to install it

What it does. Maps C and C++ headers to DllImport or LibraryImport declarations, covering type sizes, string encoding, calling conventions, memory ownership, SafeHandle, callbacks and cross-platform library loading. It also provides migration guidance, interop analyser checks and runtime validation steps.

When to use it. For wrapping native libraries, reviewing interop signatures, migrating to source-generated imports, or diagnosing crashes, leaks and corruption at the managed/native boundary. It does not apply to COM interop, C++/CLI assemblies or purely managed code.