get_portfolio_crosstab
AI agents call get_portfolio_crosstab to retrieve information from NIH RePORTER MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to retrieve cross-tabulated portfolio data from a public grant database. No modification, deletion, code execution, or financial transaction capabilities are evident. The worst-case misuse would be accessing publicly available grant information, which poses minimal risk.
From the tool's definition Tool name 'get_portfolio_crosstab' suggests data retrieval; sibling tools include 'find_project_ids', 'get_project_information', and 'search_projects', all clearly Read operations.
Attacks that exploit this kind of access
get_portfolio_crosstab. It is categorised as a Read tool in the NIH RePORTER MCP Server MCP Server, which means it retrieves data without modifying state.
Register the NIH RePORTER MCP Server MCP server in PolicyLayer and add a rule for get_portfolio_crosstab: 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 NIH RePORTER MCP Server. Nothing to install.
get_portfolio_crosstab 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_crosstab 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_crosstab. 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_crosstab is provided by the NIH RePORTER MCP Server MCP server (pradeept95/nih-reporter-mcp-server). 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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