get-prompt-version

THE RISK

Low Risk

Why get-prompt-version needs a policy

This tool retrieves/queries existing prompt version data with no side effects. It does not create, modify, delete, or execute code. The action is purely informational—fetching a read-only snapshot of a previous prompt state.

From the tool's definition Tool name 'get-prompt-version' and description 'Get the content of a specific version of a prompt' indicate retrieval of historical prompt data without modification or deletion.

Documented attack patterns abuse exactly the kind of access get-prompt-version gives an agent:

POLICY

How to control get-prompt-version

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Prompt Manager, and nothing reaches the server without passing your rules. This is the rule we recommend for get-prompt-version:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-prompt-version": {}
  }
}

get-prompt-version 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 MCP Prompt Manager — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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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 get-prompt-version

What does the get-prompt-version tool do? +

Get the content of a specific version of a prompt. It is categorised as a Read tool in the MCP Prompt Manager MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-prompt-version? +

Register the MCP Prompt Manager MCP server in PolicyLayer and add a rule for get-prompt-version: 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 MCP Prompt Manager. Nothing to install.

What risk level is get-prompt-version? +

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

Can I rate-limit get-prompt-version? +

Yes. Add a rate_limit block to the get-prompt-version 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 get-prompt-version completely? +

Set action: deny in the PolicyLayer policy for get-prompt-version. 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 get-prompt-version? +

get-prompt-version is provided by the MCP Prompt Manager MCP server (tae4an/mcp-prompt-manager). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Prompt Manager tool call.

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

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