VS Code + Claude Code

Introduction

This guide explains how to integrate Claude Code (Anthropic’s AI coding assistant) with Mobb Vibe Shield (MVS) to automatically detect and fix security vulnerabilities in your code.

After setup, you’ll be able to use Mobb’s MCP (Model Context Protocol) tools directly inside Claude — both through the Claude CLI and the Claude Code VS Code extension.

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Step 1. Install Claude Code CLI

Claude Code provides a command-line interface that manages configuration, context, and MCP servers.

Installation Instructions: Follow the official Claude Code CLI setup guide: 👉 Claude Code CLI Setup

Once installed, verify installation with:

claude --version

If this returns a version number, you’re ready to proceed.

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Step 2. (Optional) Install Claude Code for VS Code Extension

Installing the Claude VS Code extension provides an integrated IDE experience similar to GitHub Copilot. However, this step is optional, since you can perform all steps and interactions directly in the Claude CLI inside your VS Code terminal.

Install from the Marketplace: 👉 Claude Code for VS Code

Once installed, the extension automatically detects any MCP servers configured through the CLI.

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Step 3. Add Mobb MCP to Claude

The Mobb MCP server connects Claude to Mobb Vibe Shield’s auto-fix engine. This configuration is project-scoped, meaning your .mcp.json file will live in the project root and can be versioned for team use.

1. Open a terminal in your project directory:

   PS C:\Users\Antony> cd C:\git-repositories\git-node-app-test2\

2. Add Mobb MCP (multi-tenant setup):

   claude mcp add --transport stdio mobb-mcp --scope project -- npx -y mobbdev@latest mcp

   This command:

   • Configures the Mobb MCP tool in .mcp.json

   • Enables project-level collaboration

3. Verify .mcp.json was created in your project directory. It should look like this:

   {
     "mcpServers": {
       "mobb-mcp": {
         "command": "npx",
         "args": ["-y", "mobbdev@latest", "mcp"]
       }
     }
   }

4. For Enterprise Single-Tenant deployments, include tenant environment variables:

   claude mcp add --transport stdio mobb-mcp --scope project \
     --env API_URL=https://api-st-<YOUR_TENANT_NAME>.mobb.ai/v1/graphql \
     --env WEB_APP_URL=https://<YOUR_TENANT_NAME>.mobb.ai \
     -- npx -y mobbdev@latest mcp

5. Once complete, Claude will automatically detect the configuration when launched.

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Step 4. Confirm MCP Detection and Approval

1. Run Claude in the terminal:

   claude

2. You’ll see a message that a new MCP server was found in .mcp.json:

   
3. Select 1 — Use this and all future MCP servers in this project.

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Step 5. Verify Mobb MCP Connection

Check the connection:

/mcp

Expected output:

1. mobb-mcp   ✓ connected

If not connected, run:

/doctor

This helps identify missing dependencies or permission issues.

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Step 6. Using Mobb MCP in Claude Code for VS Code

Once verified in the CLI, the VS Code extension automatically inherits the configuration.

1. Open the Claude Code sidebar in VS Code.

2. Run /mcp again to verify mobb-mcp is connected.

   

You can also ask Claude:

what tools can you see

You should see these available tools:

mcp__mobb-mcp__scan_and_fix_vulnerabilities
mcp__mobb-mcp__fetch_available_fixes
mcp__mobb-mcp__check_for_new_available_fixes

MVS is now fully integrated with Claude Code.

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Step 7. (Optional) Install the MVS Rulebook

Install a MVS rulebook to guide Claude’s behavior during secure code generation.

1. Download the rulebook file:

2KB

CLAUDE.md

Open

1. Save it to:

.claude/CLAUDE.md

Purpose:

• Enforces Mobb’s scan_and_fix_vulnerabilities capability

• Ensures vulnerabilities are rechecked after code changes

• Automatically adds reusable prevention rules under .claude/instructions/

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Step 8. Troubleshooting

Issue	Possible Cause	Recommended Action
MCP not listed in /mcp	.mcp.json missing or invalid	Re-run claude mcp add
Connection error	Missing Node.js	Ensure Node ≥ 18 is installed
Enterprise tenant issue	Wrong API_URL/WEB_APP_URL	Double-check tenant URLs
Permission errors	VS Code running elevated	Reopen without admin mode

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Summary

Claude Code and Mobb Vibe Shield (MVS) are now connected through MCP. You can now use Mobb’s AI-generated fixes directly within Claude Code for automated, continuous secure coding.