get_macd

THE RISK

Low Risk

Why get_macd needs a policy

MACD is a technical analysis calculation that retrieves and processes existing market data to derive an indicator value. This is a query/read operation with no side effects. The tool does not create persistent changes, execute code, move funds, or irreversibly modify data. It falls clearly into the 'Read' category as it computes and returns analytical results based on input parameters.

From the tool's definition Tool calculates MACD technical indicator from market data - a read-only analytical operation. Description explicitly states 'Calculate MACD' without any mention of data modification, deletion, or execution of external operations.

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

POLICY

How to control get_macd

PolicyLayer is an MCP gateway — it sits between your AI agents and TradingView MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_macd:

policy.json

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

get_macd 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 TradingView 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 →

Free to start. No card required.

EXPLORE

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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_macd

What does the get_macd tool do? +

Calculate MACD (Moving Average Convergence Divergence). It is categorised as a Read tool in the TradingView MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_macd? +

Register the TradingView MCP Server MCP server in PolicyLayer and add a rule for get_macd: 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 TradingView MCP Server. Nothing to install.

What risk level is get_macd? +

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

Can I rate-limit get_macd? +

Yes. Add a rate_limit block to the get_macd 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_macd completely? +

Set action: deny in the PolicyLayer policy for get_macd. 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_macd? +

get_macd is provided by the TradingView MCP Server MCP server (lev-corrupted/tradingviewmcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every TradingView MCP Server tool call.

Start from TradingView 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 →