AI agents call export_field_names to retrieve information from Redcap without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name 'export_field_names' implies a read/export operation that retrieves field name information from a REDCap project. No side effects are expected from such an operation. However, the empty description reduces confidence. Severity is low as field name metadata is generally non-sensitive structural information.
From the tool's definition Tool name 'export_field_names' suggests retrieving/exporting field name metadata from REDCap; description is empty, lowering confidence.
Attacks that exploit this kind of access
export_field_names. It is categorised as a Read tool in the Redcap MCP Server, which means it retrieves data without modifying state.
Register the Redcap MCP server in PolicyLayer and add a rule for export_field_names: 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 Redcap. Nothing to install.
export_field_names 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 export_field_names 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 export_field_names. 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.
export_field_names is provided by the Redcap MCP server (msicilia/mcp-server-redcap). 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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