schwab_stream_option_quotes
Get real-time option quote snapshots from Schwab streaming.
This record as markdown: /tools/open-agent-tools-open-stocks-mcp/schwab-stream-option-quotes.md
What schwab_stream_option_quotes does on Open Stocks MCP
AI agents call schwab_stream_option_quotes 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.
Why schwab_stream_option_quotes is rated Low
This tool retrieves market data (option quotes) in real-time from a broker's streaming service. It performs a read-only query operation that does not create, modify, delete, or execute any actions. The 'snapshots' terminology further confirms it captures a point-in-time data view without altering state.
From the tool's definition The tool description explicitly states it 'Get[s] real-time option quote snapshots from Schwab streaming.' The verb 'Get' and noun 'snapshots' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs schwab_stream_option_quotes 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_stream_option_quotes, this is the rule to start with:
schwab_stream_option_quotes is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Open Stocks MCP, apply this rule, and every schwab_stream_option_quotes call is checked against it from then on.
Questions about schwab_stream_option_quotes
Get real-time option quote snapshots from Schwab streaming. It is categorised as a Read tool in the Open Stocks MCP MCP Server, which means it retrieves data without modifying state.
Register the Open Stocks MCP server in PolicyLayer and add a rule for schwab_stream_option_quotes: 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.
schwab_stream_option_quotes is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the schwab_stream_option_quotes 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.
Set action: deny in the PolicyLayer policy for schwab_stream_option_quotes. 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.
schwab_stream_option_quotes 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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