AI agents call get_portfolio to retrieve information from Mcp Pear without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves portfolio information about the authenticated user without modifying, executing, or deleting any data. It is a straightforward read operation with minimal blast radius if misused by an agent—it only exposes existing financial data visibility.
From the tool's definition Tool name 'get_portfolio' and server description 'Read-only MCP server' that 'gives Claude access to markets, pair ratios, positions, orders, trade history, and portfolio' with action verb 'Fetch' indicating data retrieval with no modification.
Attacks that exploit this kind of access
Fetch the authenticated user. It is categorised as a Read tool in the Mcp Pear MCP Server, which means it retrieves data without modifying state.
Register the Mcp Pear MCP server in PolicyLayer and add a rule for get_portfolio: 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 Mcp Pear. Nothing to install.
get_portfolio 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 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. 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 is provided by the Mcp Pear MCP server (marvelnwachukwu/mcp-pear). 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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