get-market-index · MCP Stock Assistant MCP: Risk & Policy

WHAT IT DOES

What get-market-index does on MCP Stock Assistant

AI agents call get-market-index to retrieve information from MCP Stock Assistant without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get-market-index needs a policy

This tool performs a read-only operation to fetch and display market index information. It retrieves existing data about stock indices without creating, modifying, deleting, or executing any side effects. The operation is informational in nature and poses minimal security risk.

From the tool's definition Tool name 'get-market-index' and description '获取大盘指数概览信息，包括上证指数和深证成指等主要指数的实时数据' (Retrieves overview of market index information, including real-time data of major indices such as Shanghai Stock Index and Shenzhen Stock Index) indicate a query operation that…

Attacks that exploit this kind of access

Questions about get-market-index

What does the get-market-index tool do? +

获取大盘指数概览信息，包括上证指数和深证成指等主要指数的实时数据. It is categorised as a Read tool in the MCP Stock Assistant MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-market-index? +

Register the MCP Stock Assistant MCP server in PolicyLayer and add a rule for get-market-index: 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 MCP Stock Assistant. Nothing to install.

What risk level is get-market-index? +

get-market-index is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-market-index? +

Yes. Add a rate_limit block to the get-market-index 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.

How do I block get-market-index completely? +

Set action: deny in the PolicyLayer policy for get-market-index. 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.

What MCP server provides get-market-index? +

get-market-index is provided by the MCP Stock Assistant MCP server (qqzhangyanhua/mcp-stock). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.