announcement_get_active

THE RISK

Low Risk

Why announcement_get_active needs a policy

This tool retrieves the state of the currently active announcement without triggering changes, executing code, or affecting data persistence. It is a straightforward query operation that returns information about the presentation state. The low severity reflects minimal blast radius—unauthorized access reveals only the current presentation context, not sensitive data or system control.

From the tool's definition Tool name 'announcement_get_active' and description 'Get the currently active announcement presentation' indicate a read-only retrieval operation with no modification or execution of external processes.

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

POLICY

How to control announcement_get_active

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 announcement_get_active:

policy.json

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

announcement_get_active 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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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 announcement_get_active

What does the announcement_get_active tool do? +

Get the currently active announcement presentation. 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 announcement_get_active? +

Register the Propresenter MCP server in PolicyLayer and add a rule for announcement_get_active: 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 announcement_get_active? +

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

Can I rate-limit announcement_get_active? +

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

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

announcement_get_active 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.

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