comprehensive_alternative_data

THE RISK

Low Risk

Why comprehensive_alternative_data needs a policy

This tool retrieves and analyzes existing financial data from public SEC filings without creating, modifying, deleting, or executing external operations. It is a read-only data retrieval and analysis function. The lack of any write, destructive, execute, or financial operation language indicates low severity with high confidence.

From the tool's definition The tool name 'comprehensive_alternative_data' combined with the server description indicating it 'retrieve[s]' data from the SEC EDGAR database, and the description stating it will 'Get comprehensive alternative data analysis' describes a data retrieval…

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

POLICY

How to control comprehensive_alternative_data

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

policy.json

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

comprehensive_alternative_data 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 SEC MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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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 comprehensive_alternative_data

What does the comprehensive_alternative_data tool do? +

Get comprehensive alternative data analysis for a company. It is categorised as a Read tool in the SEC MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on comprehensive_alternative_data? +

Register the SEC MCP server in PolicyLayer and add a rule for comprehensive_alternative_data: 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 SEC MCP. Nothing to install.

What risk level is comprehensive_alternative_data? +

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

Can I rate-limit comprehensive_alternative_data? +

Yes. Add a rate_limit block to the comprehensive_alternative_data 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 comprehensive_alternative_data completely? +

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

comprehensive_alternative_data is provided by the SEC MCP server (luisrincon23/sec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SEC MCP tool call.

Start from SEC MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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