calc_black_scholes_vanna
AI agents call calc_black_scholes_vanna 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.
This tool computes the Vanna Greek (second-order partial derivative of option price with respect to underlying asset price and volatility) in the Black-Scholes model. It performs a read-only calculation that retrieves a derived mathematical result based on input parameters. There is no data creation, modification, deletion, code execution, or financial transaction involved—only numerical computation.
From the tool's definition Tool name 'calc_black_scholes_vanna' indicates a financial calculation function that computes Vanna (a derivative pricing Greek), consistent with sibling tools like calc_black_scholes_delta, calc_black_scholes_vega, and calc_black_scholes_theta, all of which…
Attacks that exploit this kind of access
calc_black_scholes_vanna. 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_vanna: 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_vanna 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_vanna 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_vanna. 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_vanna 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.
Teams ship this data inside their own products. See what a licence covers →