calc_black_scholes_vomma
AI agents call calc_black_scholes_vomma to retrieve information from Black-Scholes MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
All tools on this server appear to perform mathematical calculations of Black-Scholes option pricing metrics. 'calc_' prefix strongly implies a pure computation/read operation with no side effects. The description is empty, but context from the server and sibling tools makes the classification clear. No data is written, deleted, or financial transactions are made.
From the tool's definition Tool name 'calc_black_scholes_vomma' on a server described as enabling 'calculation of European option prices and Greeks using the Black-Scholes model'; sibling tools follow the same calc_ prefix pattern for computing Greeks (delta, gamma, theta, vega, etc.).
Attacks that exploit this kind of access
calc_black_scholes_vomma. It is categorised as a Read tool in the Black-Scholes MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Black-Scholes MCP Server MCP server in PolicyLayer and add a rule for calc_black_scholes_vomma: 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 Black-Scholes MCP Server. Nothing to install.
calc_black_scholes_vomma 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 calc_black_scholes_vomma 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 calc_black_scholes_vomma. 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.
calc_black_scholes_vomma is provided by the Black-Scholes MCP Server MCP server (walkingshamrock/black-scholes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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