AI agents call get_market to retrieve information from DFlow MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market details from the Kalshi prediction market by ticker symbol. It is a read-only query operation with no side effects, no data modification, and no financial transactions. While the server provides access to a financial exchange, this specific tool merely queries and returns market data, making it a Read category tool with low risk severity.
From the tool's definition Tool name 'get_market' and description 'Get details of a market by ticker' indicate a query operation that retrieves market information without modifying data or executing trades.
Documented attack patterns abuse exactly the kind of access get_market gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DFlow MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_market:
{
"version": "1",
"default": "deny",
"tools": {
"get_market": {}
}
} get_market is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get details of a market by ticker. It is categorised as a Read tool in the DFlow MCP Server MCP Server, which means it retrieves data without modifying state.
Register the DFlow MCP Server MCP server in PolicyLayer and add a rule for get_market: 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 DFlow MCP Server. Nothing to install.
get_market 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_market 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_market. 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_market is provided by the DFlow MCP Server MCP server (opensvm/dflow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from DFlow MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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24 DFlow MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.