browser_go_forward · Browser MCP Server MCP: Risk & Policy

WHAT IT DOES

What browser_go_forward does on Browser MCP Server

AI agents invoke browser_go_forward to trigger actions in Browser MCP Server. 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.

WHY IT NEEDS A POLICY

Why browser_go_forward needs a policy

Navigating forward in browser history triggers page loads and potential JavaScript execution, constituting an external browser operation with side effects that depend on the current session state. It is an action/operation rather than a pure read.

From the tool's definition Navigate forward in history

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

browser_go_forward Rate-limited

browser_go_forward 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": {
    "browser_go_forward": {
      "limits": [
        {
          "counter": "browser_go_forward_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about browser_go_forward

What does the browser_go_forward tool do? +

Navigate forward in history (see browser_docs). It is categorised as a Execute tool in the Browser MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on browser_go_forward? +

Register the Browser MCP Server MCP server in PolicyLayer and add a rule for browser_go_forward: 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 Browser MCP Server. Nothing to install.

What risk level is browser_go_forward? +

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

Can I rate-limit browser_go_forward? +

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

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

browser_go_forward is provided by the Browser MCP Server MCP server (madebytokens/browser-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.