get_option_snapshot · Alpaca MCP Server MCP: Risk & Policy

WHAT IT DOES

What get_option_snapshot does on Alpaca MCP Server

AI agents call get_option_snapshot to retrieve information from Alpaca MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get_option_snapshot needs a policy

This tool retrieves or queries financial data (option market snapshots) without modifying, deleting, or executing trades. It falls under Read category. Severity is medium because the data retrieved could be sensitive financial/trading information that informs investment decisions, but the tool itself performs no irreversible actions.

From the tool's definition Tool name 'get_option_snapshot' implies retrieval of option market data or position snapshots. No description provided, but 'get_' prefix and 'snapshot' terminology indicate read-only data retrieval.

Attacks that exploit this kind of access

Questions about get_option_snapshot

What does the get_option_snapshot tool do? +

get_option_snapshot. It is categorised as a Read tool in the Alpaca MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_option_snapshot? +

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

What risk level is get_option_snapshot? +

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

Can I rate-limit get_option_snapshot? +

Yes. Add a rate_limit block to the get_option_snapshot 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_option_snapshot completely? +

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

get_option_snapshot is provided by the Alpaca MCP Server MCP server (metachain-org/alpaca-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.