messages_delete

Delete a specific message

SERVERPropresenter SOURCE@alxpark/propresenter-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-alxpark-propresenter-mcp/messages-delete.md

WHAT IT DOES

What messages_delete does on Propresenter

AI agents call messages_delete to permanently remove resources in Propresenter, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why messages_delete is rated Critical

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.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs messages_delete safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Propresenter, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For messages_delete, this is the rule to start with:

messages_delete Hidden

messages_delete is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

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

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Propresenter, apply this rule, and every messages_delete call is checked against it from then on.

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.

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