ILSpy MCP Tools Reference

Initialize assembly sessions, fetch versioning data, and read global resources.

• dn_open: Loads a managed .NET assembly and starts a persistent ILSpy session.
• dn_close: Closes an assembly session and cleans up worker resources.
• dn_sessions: Lists all open assembly sessions registered with the worker.
• dn_metadata: Returns assembly header metadata (CLR version, type count, dependency hashes).
• dn_references: Lists dependent assembly names references by this target.
• dn_resources: Lists resources embedded inside the managed executable.

                        {
  "tool": "dn_open",
  "arguments": {
    "binary_path": "/samples/NetApp.dll"
  }
}
                      

Expose managed namespace lists, type hierarchies, and type definitions without dumping full code.

• dn_namespaces: Lists distinct namespaces with type counts.
• dn_types: Lists fully qualified type names in the loaded assembly with namespace or name filter.
• dn_type_info: Renders base types, interfaces, modifiers, and attributes.
• dn_members: Returns a token-efficient list of member methods, fields, and properties of a type.
• dn_search: Searches type or member definitions matching a substring pattern.

                        {
  "tool": "dn_namespaces",
  "arguments": {
    "session_id": "NetApp.dll"
  }
}
                      

Extract clean C# source code or raw Intermediate Language (IL) instructions.

• dn_decompile: Decompile a full type to standard C# source code.
• dn_decompile_method: Decompile a single selected method to C# (highly token-efficient).
• dn_il: Renders the raw Intermediate Language (IL) disassembly for a targeted type.
• dn_search_source: Greps through the decompiled C# source of a type for a target string.
• dn_usages: Traces references to a specific pattern across all assembly types.
• dn_raw_cmd: Pass-through for custom or raw ilspycmd CLI arguments.