Threat Rules

1. 1

   Install Node.js

   One time only; it works for every server that needs Node.js

   Open the Node.js download page ↗

   Done
2. 2

   Open the Claude desktop app’s settings file

   Settings→Developer→Edit Config

   Done
3. 3

   Paste these settings and save the file

   {
     "mcpServers": {
       "threat-rules": {
         "command": "npx",
         "args": [
           "-y",
           "@guardbee/mcp-threat-rules"
         ]
       }
     }
   }

   Copy

   Done
4. 4

   Quit Claude and open it again

   Done
5. 5

   Try it

   Use Threat Rules and tell me what you can do for me, then show me one thingCopy

   ✓ If Claude says it is using Threat Rules or shows a Threat Rules tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

What you can do instead

1. 1

   Install Node.js

   One time only; it works for every server that needs Node.js

   Open the Node.js download page ↗

   Done
2. 2

   Open Terminal

   Mac: press Command+Space and type Terminal · Windows: open PowerShell

   Done
3. 3

   Paste this command and press Enter

   claude mcp add --scope user threat-rules -- npx -y @guardbee/mcp-threat-rules

   Copy

   Done
4. 4

   Type /mcp in Claude Code

   You should see Threat Rules listed as connected

   Done
5. 5

   Try it

   Use Threat Rules and tell me what you can do for me, then show me one thingCopy

   ✓ If Claude Code says it is using Threat Rules or shows a Threat Rules tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

1. 1

   Install Node.js

   One time only; it works for every server that needs Node.js

   Open the Node.js download page ↗

   Done
2. 2

   Click this button to open Cursor

   Open in Cursor

   Cursor asks you to confirm; click Install

   Done
3. 3

   Open the AI chat in Cursor in Agent mode

   Done
4. 4

   Try it

   Use Threat Rules and tell me what you can do for me, then show me one thingCopy

   ✓ If Cursor says it is using Threat Rules or shows a Threat Rules tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

1. 1

   Install Node.js

   One time only; it works for every server that needs Node.js

   Open the Node.js download page ↗

   Done
2. 2

   Click this button to open VS Code

   Open in VS Code

   VS Code asks you to confirm; click Install

   Done
3. 3

   Open the AI chat in VS Code in Agent mode

   Done
4. 4

   Try it

   Use Threat Rules and tell me what you can do for me, then show me one thingCopy

   ✓ If VS Code says it is using Threat Rules or shows a Threat Rules tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below