Get portfolio performance metrics over time
AI agents call get_portfolio_performance to retrieve information from Crypto Portfolio MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries historical portfolio performance data with no side effects. It falls squarely into the Read category as a data retrieval function. The severity is low because misuse would only expose or display existing portfolio information without enabling unauthorized actions, financial transfers, or data destruction.
From the tool's definition Tool name is 'get_portfolio_performance' and description states 'Get portfolio performance metrics over time'. The verb 'Get' and the server description emphasizes 'read-only portfolio management and analytics'.
Attacks that exploit this kind of access
Get portfolio performance metrics over time. It is categorised as a Read tool in the Crypto Portfolio MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Crypto Portfolio MCP Server MCP server in PolicyLayer and add a rule for get_portfolio_performance: 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 Crypto Portfolio MCP Server. Nothing to install.
get_portfolio_performance 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 get_portfolio_performance 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 get_portfolio_performance. 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.
get_portfolio_performance is provided by the Crypto Portfolio MCP Server MCP server (lev-corrupted/cryptoportfoliomcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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