schwab_check_margin_status

Derive margin-call status from Schwab account balances.

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/schwab-check-margin-status.md

WHAT IT DOES

What schwab_check_margin_status does on Open Stocks MCP

AI agents call schwab_check_margin_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 schwab_check_margin_status is rated Low

This tool retrieves and analyzes margin-call status from existing Schwab account data. It performs no writes, deletions, code execution, or financial transactions. However, the severity is elevated to 'medium' because margin status information is financially sensitive; an AI agent misusing this data to inform trading decisions could lead to poor financial outcomes.

From the tool's definition Tool name and description indicate 'check' and 'derive' operations on account balances to determine margin status—a pure query/inspection action with no modification, execution, or financial transaction capability. The tool reads existing account data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs schwab_check_margin_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 schwab_check_margin_status, this is the rule to start with:

schwab_check_margin_status Allowed

schwab_check_margin_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": {
    "schwab_check_margin_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 schwab_check_margin_status call is checked against it from then on.

FAQ

Questions about schwab_check_margin_status

What does the schwab_check_margin_status tool do? +

Derive margin-call status from Schwab account balances. 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 schwab_check_margin_status? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for schwab_check_margin_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 schwab_check_margin_status? +

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

Can I rate-limit schwab_check_margin_status? +

Yes. Add a rate_limit block to the schwab_check_margin_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 schwab_check_margin_status completely? +

Set action: deny in the PolicyLayer policy for schwab_check_margin_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 schwab_check_margin_status? +

schwab_check_margin_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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