broker_status

Gets authentication status for all configured brokers.

SERVEROpen Stocks MCP SOURCEopen-agent-tools/open-stocks-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/open-agent-tools-open-stocks-mcp/broker-status.md

WHAT IT DOES

What broker_status does on Open Stocks MCP

AI agents call broker_status to retrieve information from Open Stocks MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why broker_status is rated Low

This tool queries and returns the authentication status of broker connections. It is purely informational, non-destructive, and does not execute trades, modify accounts, or move money. The blast radius of misuse is minimal—an attacker learns only whether brokers are currently authenticated, which is low-sensitivity operational metadata. Categorized as Read.

From the tool's definition Tool description states 'Gets authentication status for all configured brokers' — a retrieval operation with no side effects or data modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs broker_status safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Open Stocks MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For broker_status, this is the rule to start with:

broker_status Allowed

broker_status is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Open Stocks MCP, apply this rule, and every broker_status call is checked against it from then on.

FAQ

Questions about broker_status

What does the broker_status tool do? +

Gets authentication status for all configured brokers. It is categorised as a Read tool in the Open Stocks MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on broker_status? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for broker_status: 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 Open Stocks MCP. Nothing to install.

What risk level is broker_status? +

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

Can I rate-limit broker_status? +

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

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

broker_status is provided by the Open Stocks MCP server (open-agent-tools/open-stocks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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