get_filesystem_overview

THE RISK

Low Risk

Why get_filesystem_overview needs a policy

The 'get_' prefix combined with 'overview' semantics indicates passive data retrieval. The tool appears designed to fetch and present filesystem structure/metadata from completed EMBA firmware scans, producing read-only analysis output. No evidence of modification, deletion, code execution, or financial operations.

From the tool's definition Tool name 'get_filesystem_overview' indicates a retrieval/query operation on filesystem metadata. No parameters, return type, or operational details provided in the empty description.

Documented attack patterns abuse exactly the kind of access get_filesystem_overview gives an agent:

POLICY

How to control get_filesystem_overview

PolicyLayer is an MCP gateway — it sits between your AI agents and EMBA-MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_filesystem_overview:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_filesystem_overview": {}
  }
}

get_filesystem_overview is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register EMBA-MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_filesystem_overview

What does the get_filesystem_overview tool do? +

get_filesystem_overview. It is categorised as a Read tool in the EMBA-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_filesystem_overview? +

Register the EMBA- MCP server in PolicyLayer and add a rule for get_filesystem_overview: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches EMBA-MCP. Nothing to install.

What risk level is get_filesystem_overview? +

get_filesystem_overview is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_filesystem_overview? +

Yes. Add a rate_limit block to the get_filesystem_overview rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get_filesystem_overview completely? +

Set action: deny in the PolicyLayer policy for get_filesystem_overview. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get_filesystem_overview? +

get_filesystem_overview is provided by the EMBA- MCP server (0xbuz3r/emba-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every EMBA-MCP tool call.

Start from EMBA-MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →