assignLead · Lofty MCP Server MCP: Risk & Policy

WHAT IT DOES

What assignLead does on Lofty MCP Server

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

WHY IT NEEDS A POLICY

Why assignLead needs a policy

Assigning a lead changes data state in the CRM system but is reversible (can be reassigned to another user or unassigned). This is a modification without irreversible deletion, code execution, or financial impact. Severity is medium because incorrect assignment could disrupt workflow and CRM integrity for sales teams, but the impact is containable and reversible.

From the tool's definition Tool description states 'Assign a lead to a user' — this modifies CRM state by changing lead ownership/assignment, a reversible operation typical of Write category actions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

assignLead Rate-limited

assignLead 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Lofty MCP Server, so you can run agents against it safely.

FAQ

Questions about assignLead

What does the assignLead tool do? +

Assign a lead to a user. It is categorised as a Write tool in the Lofty 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 assignLead? +

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

What risk level is assignLead? +

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

Can I rate-limit assignLead? +

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

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

assignLead is provided by the Lofty MCP Server MCP server (nerdsnipe-inc/lofty-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.