AI agents call get_top_inst to retrieve information from Tushare MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the server's purpose (query and search stock information) and the pattern of sibling tools, 'get_top_inst' almost certainly retrieves data (likely institutional information or top institutions) without modifying, deleting, or executing operations. The lack of description reduces confidence slightly, but the naming convention and server context strongly support a Read classification.
From the tool's definition Tool name 'get_top_inst' with no description provided; inferred from sibling tools on Tushare MCP Server which are all query/retrieval operations (analyze_*, collect_*, filter_*, get_*). The 'get_' prefix strongly indicates data retrieval.
Documented attack patterns abuse exactly the kind of access get_top_inst gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Tushare MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_top_inst:
{
"version": "1",
"default": "deny",
"tools": {
"get_top_inst": {}
}
}get_top_inst is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_top_inst. It is categorised as a Read tool in the Tushare MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tushare MCP Server MCP server in PolicyLayer and add a rule for get_top_inst: 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 Tushare MCP Server. Nothing to install.
get_top_inst 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_top_inst 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_top_inst. 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_top_inst is provided by the Tushare MCP Server MCP server (zhewenzhang/tushare_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 66 Tushare MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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66 Tushare MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.