AI agents call akshare_stock_basic_metrics to retrieve information from Self without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to fetch or retrieve stock metrics data based on its name and the pattern of sibling tools on this server, which are all non-destructive read operations. The empty description reduces confidence slightly, but the server's stated purpose (querying financial data) and naming convention (get/retrieve pattern in siblings) strongly indicate this is a data retrieval tool with no side effects.
From the tool's definition Tool name 'akshare_stock_basic_metrics' suggests retrieval of stock metrics data. Server context indicates these are data query tools for financial and macroeconomic indicators (FRED, AKShare).
Attacks that exploit this kind of access
akshare_stock_basic_metrics. It is categorised as a Read tool in the Self MCP Server, which means it retrieves data without modifying state.
Register the Self MCP server in PolicyLayer and add a rule for akshare_stock_basic_metrics: 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 Self. Nothing to install.
akshare_stock_basic_metrics 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 akshare_stock_basic_metrics 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 akshare_stock_basic_metrics. 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.
akshare_stock_basic_metrics is provided by the Self MCP server (ryanwang945/self-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
akshare_stock_basic_metrics is one line of Self's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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