AI agents call get_system_time to retrieve information from PC-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool simply queries and returns the current system time. It has no side effects, performs no modifications, executes no code, and creates no financial obligations. It is a straightforward informational read operation with minimal security risk.
From the tool's definition Tool name 'get_system_time' and description '获取当前系统时间信息' (get current system time information) indicate a read-only operation that retrieves system time without modifying any state.
Documented attack patterns abuse exactly the kind of access get_system_time gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PC-MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_system_time:
{
"version": "1",
"default": "deny",
"tools": {
"get_system_time": {}
}
}get_system_time is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取当前系统时间信息. It is categorised as a Read tool in the PC-MCP MCP Server, which means it retrieves data without modifying state.
Register the PC- MCP server in PolicyLayer and add a rule for get_system_time: 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 PC-MCP. Nothing to install.
get_system_time is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_system_time 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 get_system_time. 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.
get_system_time is provided by the PC- MCP server (shijianzhong/mcp-server-for-pc). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from PC-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 PC-MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.