get_event_candlesticks

THE RISK

Low Risk

Why get_event_candlesticks needs a policy

This tool retrieves candlestick chart data (OHLC price data) from a prediction market API. It is a read-only query operation that fetches existing data without side effects, state changes, or ability to execute trades or modify market data. The automatic ticker resolution is a convenience feature for data retrieval, not an action that modifies state or commits financial obligations.

From the tool's definition Tool name 'get_event_candlesticks' and description 'Get event candlesticks from the Kalshi API' indicate data retrieval with no modification. Candlestick charts are historical/current market data queries.

Documented attack patterns abuse exactly the kind of access get_event_candlesticks gives an agent:

POLICY

How to control get_event_candlesticks

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_event_candlesticks:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_event_candlesticks": {}
  }
}

get_event_candlesticks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register DFlow MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_event_candlesticks

What does the get_event_candlesticks tool do? +

Get event candlesticks from the Kalshi API. Resolves series ticker automatically. It is categorised as a Read tool in the DFlow MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_event_candlesticks? +

Register the DFlow MCP Server MCP server in PolicyLayer and add a rule for get_event_candlesticks: 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.

What risk level is get_event_candlesticks? +

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

Can I rate-limit get_event_candlesticks? +

Yes. Add a rate_limit block to the get_event_candlesticks 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_event_candlesticks completely? +

Set action: deny in the PolicyLayer policy for get_event_candlesticks. 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_event_candlesticks? +

get_event_candlesticks 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.

Enforce policy on every DFlow MCP Server tool call.

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.

CHECK YOUR STACK →