update_server_config · MCP Selenium WebDriver MCP

WHAT IT DOES

What update_server_config does on MCP Selenium WebDriver

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

WHY IT NEEDS A POLICY

Why update_server_config needs a policy

This tool modifies server configuration using a preset, which is a reversible write operation. While configuration changes can have broad effects on the browser automation system, the use of 'predefined preset' suggests limited blast radius compared to arbitrary configuration injection.

From the tool's definition Tool name 'update_server_config' combined with description 'Actualiza la configuración del servidor con un preset predefinido' (Updates the server configuration with a predefined preset) indicates modification of configuration state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_server_config Rate-limited

update_server_config 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_server_config": {
      "limits": [
        {
          "counter": "update_server_config_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about update_server_config

What does the update_server_config tool do? +

Actualiza la configuración del servidor con un preset predefinido. It is categorised as a Write tool in the MCP Selenium WebDriver 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_server_config? +

Register the MCP Selenium WebDriver MCP server in PolicyLayer and add a rule for update_server_config: 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 MCP Selenium WebDriver. Nothing to install.

What risk level is update_server_config? +

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

Can I rate-limit update_server_config? +

Yes. Add a rate_limit block to the update_server_config 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_server_config completely? +

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

update_server_config is provided by the MCP Selenium WebDriver MCP server (nixon-suarez/mcp-selenium-webdriver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.