AI agents call get_max_tradable to retrieve information from Moomoo Api without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix and positioning among other Read tools indicate this fetches data about trading limits or maximum tradable amounts, with no side effects. Confidence is reduced to 0.7 due to missing description, but the naming pattern and sibling context strongly suggest Read classification. Even if it influences trading decisions, it merely retrieves information rather than executing trades or modifying state.
From the tool's definition Tool name 'get_max_tradable' suggests a query operation to retrieve maximum tradable quantities. No description provided, but the prefix 'get_' is characteristic of Read operations.
Documented attack patterns abuse exactly the kind of access get_max_tradable gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Moomoo Api, and nothing reaches the server without passing your rules. This is the rule we recommend for get_max_tradable:
{
"version": "1",
"default": "deny",
"tools": {
"get_max_tradable": {}
}
}get_max_tradable is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_max_tradable. It is categorised as a Read tool in the Moomoo Api MCP Server, which means it retrieves data without modifying state.
Register the Moomoo Api MCP server in PolicyLayer and add a rule for get_max_tradable: 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 Moomoo Api. Nothing to install.
get_max_tradable 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 get_max_tradable 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 get_max_tradable. 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.
get_max_tradable is provided by the Moomoo Api MCP server (litash/moomoo-api-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Moomoo Api, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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22 Moomoo Api tools catalogued and risk-classified — across an index of 43,000+ MCP servers.