AI agents call get_stock_basic_info to retrieve information from A Share without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves stock basic information without modifying, executing code, deleting data, or affecting financial transactions. The 'get_' prefix and server context indicate a simple data query operation. Confidence is slightly reduced because the tool description is empty, but the name and server purpose provide sufficient context for classification.
From the tool's definition Tool name 'get_stock_basic_info' follows the 'get_' prefix pattern typical of retrieval operations. Server description states it 'enables users to query Chinese A-share stock data, including stock basics' with no mention of modifications, deletions, or side…
Attacks that exploit this kind of access
get_stock_basic_info. It is categorised as a Read tool in the A Share MCP Server, which means it retrieves data without modifying state.
Register the A Share MCP server in PolicyLayer and add a rule for get_stock_basic_info: 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 A Share. Nothing to install.
get_stock_basic_info 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_stock_basic_info 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_stock_basic_info. 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_stock_basic_info is provided by the A Share MCP server (kissjerryfan/mcp_server). 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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