AI agents call download_stock_announcement to retrieve information from Ashare without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve stock announcements—publicly available information—with no capability to modify, delete, or execute operations. The absence of a description lowers confidence slightly, but the naming pattern and sibling tools (all read operations prefixed with 'get_') strongly suggest this is a data retrieval endpoint with no side effects.
From the tool's definition Tool name 'download_stock_announcement' suggests retrieval of publicly available stock announcement data. Description is empty, but context indicates this is part of a financial data retrieval API (baostock endpoints) alongside sibling tools like…
Attacks that exploit this kind of access
download_stock_announcement. It is categorised as a Read tool in the Ashare MCP Server, which means it retrieves data without modifying state.
Register the Ashare MCP server in PolicyLayer and add a rule for download_stock_announcement: 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 Ashare. Nothing to install.
download_stock_announcement 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 download_stock_announcement 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 download_stock_announcement. 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.
download_stock_announcement is provided by the Ashare MCP server (maimai-hqw/ashare-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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