Calculate comprehensive financial ratios
AI agents call financial_ratios_analysis to retrieve information from Excel Finance MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool calculates financial ratios, which is a read/compute operation on existing financial data. It does not move money, modify data, execute code, or delete anything. It produces analytical output (ratios) from inputs, making it a Read-category tool. Severity is low as misuse would at worst produce misleading calculations rather than causing direct harm.
From the tool's definition Calculate comprehensive financial ratios
Attacks that exploit this kind of access
Calculate comprehensive financial ratios. It is categorised as a Read tool in the Excel Finance MCP MCP Server, which means it retrieves data without modifying state.
Register the Excel Finance MCP server in PolicyLayer and add a rule for financial_ratios_analysis: 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 Excel Finance MCP. Nothing to install.
financial_ratios_analysis 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 financial_ratios_analysis 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 financial_ratios_analysis. 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.
financial_ratios_analysis is provided by the Excel Finance MCP server (jeremycharlesgillespie/excel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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