get_dataset

THE RISK

Low Risk

Why get_dataset needs a policy

This tool performs a read-only query operation that retrieves data by identifier. There are no side effects, no modifications, no execution of code, and no destructive or financial actions. The severity is low because retrieval of a dataset presents minimal risk unless the dataset contains highly sensitive information, but the tool itself is a standard read operation.

From the tool's definition Tool name 'get_dataset' and description 'Retrieve a specific dataset by ID' indicate a data retrieval operation with no modification or deletion.

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

POLICY

How to control get_dataset

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

policy.json

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

get_dataset 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 Crow — 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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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_dataset

What does the get_dataset tool do? +

Retrieve a specific dataset by ID. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_dataset? +

Register the Crow MCP server in PolicyLayer and add a rule for get_dataset: 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 Crow. Nothing to install.

What risk level is get_dataset? +

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

Can I rate-limit get_dataset? +

Yes. Add a rate_limit block to the get_dataset 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_dataset completely? +

Set action: deny in the PolicyLayer policy for get_dataset. 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_dataset? +

get_dataset is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

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

CHECK YOUR STACK →