AI agents call get_insider_cluster_buys to retrieve information from Gurufocus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves insider trading cluster buy information, which is a read-only query of existing financial data with no side effects. Even though insider trading data relates to investments, the tool itself does not execute trades or commit financial obligations—it merely fetches information. No destructive, write, execute, or financial operations are performed by the tool itself.
From the tool's definition Tool name 'get_insider_cluster_buys' uses the 'get_' prefix indicating data retrieval. The description is empty, but context from sibling tools (get_api_usage, get_country_currency, get_economic_indicator, get_etf_list, etc.) all follow a consistent pattern…
Attacks that exploit this kind of access
get_insider_cluster_buys. It is categorised as a Read tool in the Gurufocus MCP Server, which means it retrieves data without modifying state.
Register the Gurufocus MCP server in PolicyLayer and add a rule for get_insider_cluster_buys: 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 Gurufocus. Nothing to install.
get_insider_cluster_buys 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_insider_cluster_buys 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_insider_cluster_buys. 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_insider_cluster_buys is provided by the Gurufocus MCP server (u-daveblack/gurufocus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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