create-livy-session

THE RISK

High Risk

This tool creates a new interactive Spark execution session via the Livy API, which enables running arbitrary code/computations on a Spark cluster. While the session creation itself is a Write operation, its primary purpose is to enable code execution, and misuse could spin up expensive compute resources or serve as a gateway for executing arbitrary code at scale.

From the tool's definition Create a new Livy session for interactive Spark execution

Documented attack patterns abuse exactly the kind of access create-livy-session gives an agent:

HOW TO CONTROL CREATE-LIVY-SESSION

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create-livy-session": {
      "limits": [
        {
          "counter": "create-livy-session_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

create-livy-session stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

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

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More Fabric-Analytics-MCP tools

Destructive delete-fabric-dataflow Delete a Dataflow Gen2 from workspace Destructive delete-fabric-item Delete an item from Microsoft Fabric workspace Destructive delete-fabric-notebook Delete a notebook from Microsoft Fabric workspace Destructive delete-livy-session Delete a Livy session Execute cancel-spark-application Cancel a running Spark application Execute execute-fabric-notebook Execute a notebook in Microsoft Fabric workspace Execute execute-livy-statement Execute a statement in a Livy session Execute execute-spark-job-definition Execute a Spark Job Definition with execution data

All 83 Fabric-Analytics-MCP tools →

Execute tools on other servers

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Go deeper

High-risk tools in Fabric-Analytics-MCP → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the create-livy-session tool do? +

Create a new Livy session for interactive Spark execution. It is categorised as a Execute tool in the Fabric-Analytics-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on create-livy-session? +

Register the Fabric-Analytics- MCP server in PolicyLayer and add a rule for create-livy-session: 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 Fabric-Analytics-MCP. Nothing to install.

What risk level is create-livy-session? +

create-livy-session is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit create-livy-session? +

Yes. Add a rate_limit block to the create-livy-session 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 create-livy-session completely? +

Set action: deny in the PolicyLayer policy for create-livy-session. 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 create-livy-session? +

create-livy-session is provided by the Fabric-Analytics- MCP server (santhoshravindran7/fabric-analytics-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Fabric-Analytics-MCP tool call.

Deterministic rules across all 83 Fabric-Analytics-MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN FABRIC-ANALYTICS-MCP →

Free to start. No card required.

83 Fabric-Analytics-MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT CREATE-LIVY-SESSION ON FABRIC-ANALYTICS-MCP DOES

// THE RISK

// HOW TO CONTROL CREATE-LIVY-SESSION

// EXPLORE