Get ICB industry classification for Vietnamese stocks. Args: source: Data source - VCI or KBS (default: VCI)
AI agents call listing_industries to retrieve information from VNStock Agent MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns industry classification data without modifying, deleting, or executing any operations. It is a straightforward data retrieval function with no destructive, financial, or code execution capabilities. The severity is low because misuse would only expose publicly available market classification information.
From the tool's definition Tool name 'listing_industries' and description 'Get ICB industry classification for Vietnamese stocks' indicate a retrieval operation. The only argument is 'source' which selects a data provider (VCI or KBS), with no mutation or side effects.
Documented attack patterns abuse exactly the kind of access listing_industries gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and VNStock Agent MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for listing_industries:
{
"version": "1",
"default": "deny",
"tools": {
"listing_industries": {}
}
}listing_industries is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get ICB industry classification for Vietnamese stocks. Args: source: Data source - VCI or KBS (default: VCI). It is categorised as a Read tool in the VNStock Agent MCP Server MCP Server, which means it retrieves data without modifying state.
Register the VNStock Agent MCP Server MCP server in PolicyLayer and add a rule for listing_industries: 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 VNStock Agent MCP Server. Nothing to install.
listing_industries 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 listing_industries 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 listing_industries. 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.
listing_industries is provided by the VNStock Agent MCP Server MCP server (mrgoonie/vnstock-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from VNStock Agent MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
21 VNStock Agent MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.