update_toll_site · Plurity MCP: Risk & Policy

WHAT IT DOES

What update_toll_site does on Plurity

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

WHY IT NEEDS A POLICY

Why update_toll_site needs a policy

The 'update' prefix classifies this as Write (modifies data reversibly). Severity is medium because updating site configuration could affect traffic routing, monitoring, or agent behavior, but without destructive or financial impact. Confidence is 0.8 rather than higher due to the empty description, though the naming convention and context strongly suggest a reversible modification operation.

From the tool's definition Tool name 'update_toll_site' indicates modification of site configuration data. The verb 'update' signifies reversible data changes.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_toll_site Rate-limited

update_toll_site 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": {
    "update_toll_site": {
      "limits": [
        {
          "counter": "update_toll_site_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 Plurity, so you can run agents against it safely.

FAQ

Questions about update_toll_site

What does the update_toll_site tool do? +

update_toll_site. It is categorised as a Write tool in the Plurity MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_toll_site? +

Register the Plurity MCP server in PolicyLayer and add a rule for update_toll_site: 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 Plurity. Nothing to install.

What risk level is update_toll_site? +

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

Can I rate-limit update_toll_site? +

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

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

update_toll_site is provided by the Plurity MCP server (plurity-ai/plurity-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.