messages_delete

THE RISK

Critical Risk

Why messages_delete needs a policy

Deletion operations are irreversible and cannot be undone without external recovery mechanisms. While the blast radius is scoped to individual messages (not system-wide data), the permanent loss of message content represents a destructive action that merits 'high' severity in a presentation/announcement context where messages may be important operational or archival records.

From the tool's definition Tool name 'messages_delete' with description 'Delete a specific message' - the verb 'Delete' indicates irreversible removal of data.

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

POLICY

How to control messages_delete

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 messages_delete:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "messages_delete"
  ]
}

messages_delete disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

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.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Propresenter tools

Destructive clear_layer Clear a specific layer (audio, props, messages, announcements, slide, media, video_input) Destructive props_clear Clear a specific prop from display Destructive props_delete Delete a specific prop Destructive props_delete_collection Delete a specific prop collection Destructive stage_delete_layout Delete a specific stage layout Execute clear_trigger_group Trigger a specific clear group Execute props_pause_auto_clear Pause auto-clear for a specific prop Execute timers_operation Perform a specific operation on a timer (start, stop, reset)

All 177 Propresenter tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Propresenter → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-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.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about messages_delete

What does the messages_delete tool do? +

Delete a specific message. It is categorised as a Destructive tool in the Propresenter MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on messages_delete? +

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

messages_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit messages_delete? +

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

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

messages_delete 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 →