# browser_useragent_clear

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

Agent View of the PolicyLayer registry record for `browser_useragent_clear`. HTML page: https://policylayer.com/tools/salviz-termux-browser-pilot/browser-useragent-clear

## Facts

- Tool: `browser_useragent_clear`
- Server: Termux Browser Pilot (`salviz/termux-browser-pilot`) — https://policylayer.com/tools/salviz-termux-browser-pilot.md
- Homepage: https://github.com/salviz/termux-browser-pilot
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "browser_useragent_clear",
    "arguments": {}
  }
}
```

## 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 own definition: "Clear user agent override (restore original navigator.userAgent)"

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Termux Browser Pilot:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_useragent_clear": {
      "limits": [
        {
          "counter": "browser_useragent_clear_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Termux Browser Pilot (147)

- `browser_auth_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-auth-delete.md
- `browser_console_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-clear.md
- `browser_cookies_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-cookies-clear.md
- `browser_dialog_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-dialog-clear.md
- `browser_events_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-events-clear.md
- `browser_headers_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-headers-clear.md
- `browser_mock_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-mock-clear.md
- `browser_mutations_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-mutations-clear.md
- `browser_network_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-network-clear.md
- `browser_profile_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-profile-delete.md
- `browser_responses_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-responses-clear.md
- `browser_session_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-session-delete.md
- `browser_snapshot_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-snapshot-delete.md
- `browser_storage_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-storage-clear.md
- `browser_storage_remove` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-storage-remove.md
- `browser_tab_close` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-tab-close.md
- `browser_unblock` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-unblock.md
- `browser_window_close` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-window-close.md
- `browser_attr_remove` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-attr-remove.md
- `browser_attr_set` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-attr-set.md
- `browser_auth_load` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-auth-load.md
- `browser_back` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-back.md
- `browser_block` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-block.md
- `browser_check` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-check.md
- `browser_click` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-click.md
- `browser_console_start` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-start.md
- `browser_console_stop` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-stop.md
- `browser_cookies_load` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-cookies-load.md
- `browser_css_inject` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-css-inject.md
- `browser_css_remove` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-css-remove.md
- …and 117 more: https://policylayer.com/tools/salviz-termux-browser-pilot.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=salviz-termux-browser-pilot · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/salviz-termux-browser-pilot