browser_useragent_clear

Clear user agent override (restore original navigator.userAgent).

SERVERTermux Browser Pilot SOURCEsalviz/termux-browser-pilot

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/salviz-termux-browser-pilot/browser-useragent-clear.md

WHAT IT DOES

What browser_useragent_clear does on Termux Browser Pilot

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

RISK

Why browser_useragent_clear is rated Medium

This tool modifies browser configuration by clearing/resetting the user agent override back to its original value. It's a reversible configuration change (Write category), not destructive since it restores rather than permanently removes data. The blast radius is low as it only affects how the browser identifies itself to web servers.

From the tool's definition Clear user agent override (restore original navigator.userAgent)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_useragent_clear safely

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

browser_useragent_clear Rate-limited

browser_useragent_clear 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": {
    "browser_useragent_clear": {
      "limits": [
        {
          "counter": "browser_useragent_clear_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about browser_useragent_clear

What does the browser_useragent_clear tool do? +

Clear user agent override (restore original navigator.userAgent). It is categorised as a Write tool in the Termux Browser Pilot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on browser_useragent_clear? +

Register the Termux Browser Pilot MCP server in PolicyLayer and add a rule for browser_useragent_clear: 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 Termux Browser Pilot. Nothing to install.

What risk level is browser_useragent_clear? +

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

Can I rate-limit browser_useragent_clear? +

Yes. Add a rate_limit block to the browser_useragent_clear 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_useragent_clear completely? +

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

browser_useragent_clear is provided by the Termux Browser Pilot MCP server (salviz/termux-browser-pilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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