stock_a_ttm_lyr
A read tool on the China Stock MCP server.
This record as markdown: /tools/peikuo-china-stock-mcp-server/stock-a-ttm-lyr.md
What stock_a_ttm_lyr does on China Stock MCP Server
AI agents call stock_a_ttm_lyr to retrieve information from China Stock MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why stock_a_ttm_lyr is rated Low
The tool appears to retrieve historical or statistical stock data without modifying it, matching the Read category (fetch/query). Severity is low because misuse only exposes market data. Confidence is reduced to 0.7 due to empty description, but sibling tools and naming convention strongly suggest read-only market data retrieval.
From the tool's definition Tool name 'stock_a_ttm_lyr' suggests retrieval of stock metrics (TTM = trailing twelve months, LYR = last year ratio), consistent with data-fetching pattern of sibling tools like 'stock_a_high_low_statistics' and 'stock_a_indicator_lg'.
Attacks that exploit this kind of access
The rule that runs stock_a_ttm_lyr safely
PolicyLayer is an MCP gateway: it sits between your AI agents and China Stock MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stock_a_ttm_lyr, this is the rule to start with:
stock_a_ttm_lyr is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect China Stock MCP Server, apply this rule, and every stock_a_ttm_lyr call is checked against it from then on.
Questions about stock_a_ttm_lyr
stock_a_ttm_lyr is a read tool on the China Stock MCP Server MCP server. It is categorised as a Read tool in the China Stock MCP Server MCP Server, which means it retrieves data without modifying state.
Register the China Stock MCP Server MCP server in PolicyLayer and add a rule for stock_a_ttm_lyr: 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 China Stock MCP Server. Nothing to install.
stock_a_ttm_lyr 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 stock_a_ttm_lyr 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 stock_a_ttm_lyr. 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.
stock_a_ttm_lyr is provided by the China Stock MCP Server MCP server (peikuo/china-stock-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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