Caveman.PrivacyGuard.Mcp 1.3.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package Caveman.PrivacyGuard.Mcp --version 1.3.0
                    


                    

                
NuGet\Install-Package Caveman.PrivacyGuard.Mcp -Version 1.3.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Caveman.PrivacyGuard.Mcp" Version="1.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Caveman.PrivacyGuard.Mcp" Version="1.3.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Caveman.PrivacyGuard.Mcp" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Caveman.PrivacyGuard.Mcp --version 1.3.0
                    


                    

                
#r "nuget: Caveman.PrivacyGuard.Mcp, 1.3.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Caveman.PrivacyGuard.Mcp@1.3.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Caveman.PrivacyGuard.Mcp&version=1.3.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Caveman.PrivacyGuard.Mcp&version=1.3.0
                    


                            Install as a Cake Tool

Caveman.PrivacyGuard.Mcp

MCP (Model Context Protocol) server for Caveman.PrivacyGuard — exposes PII detection/masking, session-based restore, AI-transparency notices, and prompt-injection screening as MCP tools for Claude Code, OpenCode, Cursor, and any MCP-compatible agent.

Tools

Tool Description
analyze_text Detects and scores PII/sensitive data (32 countries), returns compliance flags (GDPR/AI Act/NIS2/PCI-DSS/NIST)
mask_text Masks sensitive data; pass a sessionId to get unique [PG_N] placeholders restorable later
restore_text Restores original values in a model response, given the sessionId used to mask it
check_prompt_injection Heuristically screens untrusted text for prompt-injection attempts before it reaches an LLM
get_ai_transparency_notice Returns a configurable, localized disclosure that the user is talking to an AI system

Usage

Add to your MCP client config (e.g. Claude Code, Cursor):

{
  "mcpServers": {
    "caveman-privacyguard": {
      "command": "dotnet",
      "args": ["path/to/caveman-privacyguard-mcp.dll"]
    }
  }
}

Each conversation should use a distinct sessionId when calling mask_text / restore_text, so different conversations never share (or leak into) each other's placeholder mappings — see PrivacySessionManager in the core library.

Disclaimer

analyze_text, check_prompt_injection, and get_ai_transparency_notice are technical aids, not a compliance or security guarantee. GDPR, AI Act, and NIS2 obligations require contextual legal assessment; prompt-injection screening is heuristic and should be one layer among several defenses (system-prompt hardening, output filtering, least-privilege tool access).

License

MIT — see LICENSE.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.3.0 132 8/13/2026
1.2.2 119 7/19/2026

1.3.0: aligned with Caveman.PrivacyGuard 1.3.0. New tools: mask_stream (boundary-safe streaming PII masking over an array of text chunks, with a configurable overlap window), mask_document (streaming masking of plain-text/Markdown/CSV files into a name.masked.ext copy, original never overwritten), and session_summary (redacted placeholder+category view of a session — never the original value). 1.2.2 added 5 new country validators, AI Act/NIS2 compliance flags, PrivacySessionManager, AiTransparencyNotice and ChatIntentRouter.