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Document Armorer Guard MCP proxy #351

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24 changes: 24 additions & 0 deletions MCP_SETUP.md
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Expand Up @@ -55,6 +55,30 @@ Add this JSON configuration to your Dive MCP settings to enable local tools:
}
```

To gate local MCP tool calls before they reach a server, wrap the server command
with [Armorer Guard](https://github.com/ArmorerLabs/Armorer-Guard). For example:

```json
"mcpServers":{
"filesystem": {
"command": "armorer-guard",
"args": [
"mcp-proxy",
"--",
"npx",
"-y",
"@modelcontextprotocol/server-filesystem",
"/path/to/allowed/files"
],
"enabled": true
}
}
```

Armorer Guard runs locally and inspects STDIO MCP `tools/call` arguments for
prompt injection, credential leakage, exfiltration risk, and dangerous actions
before forwarding safe calls.

#### Using Streamable HTTP for Cloud MCP Services

You can connect to external cloud MCP servers via Streamable HTTP transport. Here's the Dive configuration example for SearXNG service from OAPHub:
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