# hotkey

Send a hotkey chord like

Agent View of the PolicyLayer registry record for `hotkey`. HTML page: https://policylayer.com/tools/335234131-agent-browser-mcp/hotkey

## Facts

- Tool: `hotkey`
- Server: Agent Browser (`335234131/agent-browser-mcp`) — https://policylayer.com/tools/335234131-agent-browser-mcp.md
- Homepage: https://github.com/335234131/agent-browser-mcp
- Risk category: Execute (High 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": "hotkey",
    "arguments": {}
  }
}
```

## Why hotkey is rated High

Sending hotkey chords constitutes physical keyboard input that can trigger arbitrary browser or OS-level actions (e.g., Ctrl+W to close tabs, Ctrl+S to save, Alt+F4, etc.). Since this operates on a real browser with live sessions and cookies, misuse could trigger significant unintended operations. The description is minimal but the server context clarifies it controls a real browser with full privileges.

From the tool's own definition: "'Send a hotkey chord' — triggers keyboard input actions in a real Chrome browser with full session context including login sessions and cookies"

## Use case

AI agents invoke hotkey to trigger actions in Agent Browser. 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.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "hotkey": {
      "limits": [
        {
          "counter": "hotkey_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Agent Browser (19)

- `cdp_batch` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/cdp-batch.md
- `cdp_command` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/cdp-command.md
- `execute_js` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/execute-js.md
- `mouse_click` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-click.md
- `mouse_drag` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-drag.md
- `mouse_move` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-move.md
- `open_new_tab` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/open-new-tab.md
- `open_url` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/open-url.md
- `switch_tab` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/switch-tab.md
- `type_text` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/type-text.md
- `capture_desktop_screenshot` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/capture-desktop-screenshot.md
- `capture_page_screenshot` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/capture-page-screenshot.md
- `extension_path` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/extension-path.md
- `get_cookies` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/get-cookies.md
- `get_setup_status` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/get-setup-status.md
- `list_extensions` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/list-extensions.md
- `list_tabs` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/list-tabs.md
- `pointer_info` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/pointer-info.md
- `scan_page` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/scan-page.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=335234131-agent-browser-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/335234131-agent-browser-mcp