AI agents call guru_pk_help to retrieve information from Guru Pk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static help and introductory information about the system. It has no side effects, does not modify any data, does not execute external operations, and does not involve financial transactions. It is a pure informational read operation, making it the lowest-severity category.
From the tool's definition Tool name is 'guru_pk_help' and description translates to 'Get system help and introduction' — a retrieval operation with no data modification or execution.
Documented attack patterns abuse exactly the kind of access guru_pk_help gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Guru Pk, and nothing reaches the server without passing your rules. This is the rule we recommend for guru_pk_help:
{
"version": "1",
"default": "deny",
"tools": {
"guru_pk_help": {}
}
}guru_pk_help is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取系统帮助和介绍. It is categorised as a Read tool in the Guru Pk MCP Server, which means it retrieves data without modifying state.
Register the Guru Pk MCP server in PolicyLayer and add a rule for guru_pk_help: 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 Guru Pk. Nothing to install.
guru_pk_help 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 guru_pk_help 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 guru_pk_help. 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.
guru_pk_help is provided by the Guru Pk MCP server (mitsudoai/guru-pk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Guru Pk, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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22 Guru Pk tools catalogued and risk-classified — across an index of 43,000+ MCP servers.