promptGuardTriggerer · Malicious MCP: Risk & Policy

WHAT IT DOES

What promptGuardTriggerer does on Malicious

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

PARAMETERS

Parameter	Type	Required	Description
`query`	string	Yes	Your query or request

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why promptGuardTriggerer needs a policy

An AI agent can call promptGuardTriggerer faster than any human can review — one bad instruction and it creates or modifies resources in Malicious by the hundred, each call as confident as the last.

Risk signalsAccepts freeform code/query input (query)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

promptGuardTriggerer Rate-limited

promptGuardTriggerer 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": {
    "promptGuardTriggerer": {
      "limits": [
        {
          "counter": "promptguardtriggerer_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 Malicious, so you can run agents against it safely.

FAQ

Questions about promptGuardTriggerer

What does the promptGuardTriggerer tool do? +

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

What parameters does promptGuardTriggerer accept? +

promptGuardTriggerer accepts 1 parameter: query. Required: query. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on promptGuardTriggerer? +

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

What risk level is promptGuardTriggerer? +

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

Can I rate-limit promptGuardTriggerer? +

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

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

promptGuardTriggerer is provided by the Malicious MCP server (malicious-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.