selenium_sessions

List active Selenium/WebDriver sessions.

SERVERYaver SOURCEyaver-cli

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-kivanccakmak-yaver/selenium-sessions.md

WHAT IT DOES

What selenium_sessions does on Yaver

AI agents call selenium_sessions to retrieve information from Yaver without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why selenium_sessions is rated Low

This tool retrieves information about active browser automation sessions. It performs a read-only query without creating, modifying, deleting, or executing actions. While Selenium/WebDriver can be used for Execute operations, this specific tool only lists existing sessions, making it a straightforward Read action with minimal risk.

From the tool's definition Tool name 'selenium_sessions' with description 'List active Selenium/WebDriver sessions' indicates a query/retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs selenium_sessions safely

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

selenium_sessions Allowed

selenium_sessions is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "selenium_sessions": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about selenium_sessions

What does the selenium_sessions tool do? +

List active Selenium/WebDriver sessions. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on selenium_sessions? +

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

What risk level is selenium_sessions? +

selenium_sessions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit selenium_sessions? +

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

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

selenium_sessions is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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