portfolio_value
AI agents call portfolio_value to retrieve information from Cryptosense without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to calculate or retrieve a user's portfolio value without modifying data or executing external operations. This is consistent with Read category tools that query information. Confidence is moderate (0.75) rather than high because the description is empty, but the server's stated purpose and the tool name strongly suggest a read-only query operation.
From the tool's definition Tool name 'portfolio_value' and server description indicating the server 'Get prices, trending coins, market overview, top coins by market cap, and portfolio value' suggests this retrieves portfolio information.
Attacks that exploit this kind of access
portfolio_value. It is categorised as a Read tool in the Cryptosense MCP Server, which means it retrieves data without modifying state.
Register the Cryptosense MCP server in PolicyLayer and add a rule for portfolio_value: 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 Cryptosense. Nothing to install.
portfolio_value 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 portfolio_value 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 portfolio_value. 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.
portfolio_value is provided by the Cryptosense MCP server (josephibra/cryptosense-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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