AI agents invoke hotkey to trigger actions in EZComputerCtrl MCP. 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.
The hotkey tool sends keyboard shortcut combinations to the desktop. While simple hotkeys like ctrl+c are benign, this tool can trigger arbitrary key combinations including destructive ones (e.g., ctrl+z, alt+F4, ctrl+alt+del, win+r to open Run dialog for executing commands).
From the tool's definition 发送组合快捷键，支持 ctrl+c 或 ["ctrl", "c"]
Documented attack patterns abuse exactly the kind of access hotkey gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and EZComputerCtrl MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for hotkey:
{
"version": "1",
"default": "deny",
"tools": {
"hotkey": {
"limits": [
{
"counter": "hotkey_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}hotkey 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.
Free to start. No card required.
发送组合快捷键，支持 ctrl+c 或 ["ctrl", "c"]。. It is categorised as a Execute tool in the EZComputerCtrl MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the EZComputerCtrl MCP server in PolicyLayer and add a rule for hotkey: 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 EZComputerCtrl MCP. Nothing to install.
hotkey is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the hotkey 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.
Set action: deny in the PolicyLayer policy for hotkey. 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.
hotkey is provided by the EZComputerCtrl MCP server (jucieovo/ezcomputerctrl-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from EZComputerCtrl MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 EZComputerCtrl MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.