masks_get

THE RISK

Low Risk

Why masks_get needs a policy

The 'get' verb and 'Get details' phrasing are characteristic of read-only operations that query data about masks in ProPresenter 7 without altering state, executing code, or triggering external operations. This is a simple data retrieval tool with minimal security risk.

From the tool's definition Tool name 'masks_get' and description 'Get details of a specific mask' indicate a retrieval operation with no modification or side effects.

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

POLICY

How to control masks_get

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

policy.json

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

masks_get 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 Propresenter — 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

Related tools and policies

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All 177 Propresenter tools →

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 masks_get

What does the masks_get tool do? +

Get details of a specific mask. It is categorised as a Read tool in the Propresenter MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on masks_get? +

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

What risk level is masks_get? +

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

Can I rate-limit masks_get? +

Yes. Add a rate_limit block to the masks_get 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 masks_get completely? +

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

masks_get is provided by the Propresenter MCP server (@alxpark/propresenter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Propresenter tool call.

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

CHECK YOUR STACK →