replace_role_privileges

ServerDataverse MCP Server
CategoryWrite

How to control replace_role_privileges ↓

WHAT IT DOES

What replace_role_privileges does on Dataverse MCP Server

AI agents use replace_role_privileges to create or update resources in Dataverse MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Dataverse MCP Server environment.

THE RISK

Medium Risk

Why replace_role_privileges needs a policy

This is a Write operation because it modifies data (role privileges) in a reversible manner—the changes can be undone by replacing privileges again. It is not Destructive because the underlying role persists and the operation is reversible.

From the tool's definition Tool description states it 'Completely replaces all existing privileges in a security role with a new set of privileges' and warns 'This removes all current privileges and replaces them with the specified ones.' This modifies security role configuration…

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

POLICY

How to control replace_role_privileges

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "replace_role_privileges": {
      "limits": [
        {
          "counter": "replace_role_privileges_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

replace_role_privileges stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Dataverse MCP Server — 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

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about replace_role_privileges

What does the replace_role_privileges tool do? +

Completely replaces all existing privileges in a security role with a new set of privileges. WARNING: This removes all current privileges and replaces them with the specified ones. Use this for comprehensive role permission restructuring. It is categorised as a Write tool in the Dataverse MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on replace_role_privileges? +

Register the Dataverse MCP Server MCP server in PolicyLayer and add a rule for replace_role_privileges: 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 Dataverse MCP Server. Nothing to install.

What risk level is replace_role_privileges? +

replace_role_privileges is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit replace_role_privileges? +

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

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

replace_role_privileges is provided by the Dataverse MCP Server MCP server (mwhesse/dataverse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Dataverse MCP Server tool call.

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

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