stop_xsser_gui

Terminates a background XSSer GUI process using its PID.

SERVERPentester-MCP SOURCEhalilkirazkaya/pentester-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/halilkirazkaya-pentester-mcp/stop-xsser-gui.md

WHAT IT DOES

What stop_xsser_gui does on Pentester-MCP

AI agents invoke stop_xsser_gui to trigger actions in Pentester-MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why stop_xsser_gui is rated High

Process termination is an Execute action because it directly triggers a system operation (kill/terminate) whose effect depends on the supplied PID argument. While not destructive to data per se, it can disrupt running operations and affects system state.

From the tool's definition The tool 'terminates a background XSSer GUI process using its PID' - this performs process termination, a system-level operation that executes an external command with side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stop_xsser_gui safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Pentester-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stop_xsser_gui, this is the rule to start with:

stop_xsser_gui Rate-limited

stop_xsser_gui stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stop_xsser_gui": {
      "limits": [
        {
          "counter": "stop_xsser_gui_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Pentester-MCP, apply this rule, and every stop_xsser_gui call is checked against it from then on.

FAQ

Questions about stop_xsser_gui

What does the stop_xsser_gui tool do? +

Terminates a background XSSer GUI process using its PID. It is categorised as a Execute tool in the Pentester-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on stop_xsser_gui? +

Register the Pentester MCP server in PolicyLayer and add a rule for stop_xsser_gui: 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 Pentester-MCP. Nothing to install.

What risk level is stop_xsser_gui? +

stop_xsser_gui is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit stop_xsser_gui? +

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

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

stop_xsser_gui is provided by the Pentester MCP server (halilkirazkaya/pentester-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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