organization_endpoint_external_reference_external_references \u00b7 POST /organizationEndpointExternalReferenceExternalReferences/search \u2014 Returns events Required: q, from, size.
AI agents call org_endpoint_external_references_search to retrieve information from Vicarius vRx MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read operation that queries and retrieves data about endpoint external references without modifying, deleting, or executing any actions. The search functionality with pagination (from, size) parameters is characteristic of data retrieval. The server explicitly enforces read-only safety, confirming no side effects occur.
From the tool's definition Tool performs a search operation ("search" in name and endpoint path) that "Returns events" with required query parameters (q, from, size). The operation is read-only as indicated by the server description's stated 'read-only safety enforcement'.
Attacks that exploit this kind of access
organization_endpoint_external_reference_external_references \u00b7 POST /organizationEndpointExternalReferenceExternalReferences/search \u2014 Returns events Required: q, from, size. It is categorised as a Read tool in the Vicarius vRx MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Vicarius vRx MCP Server MCP server in PolicyLayer and add a rule for org_endpoint_external_references_search: 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 Vicarius vRx MCP Server. Nothing to install.
org_endpoint_external_references_search 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 org_endpoint_external_references_search 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 org_endpoint_external_references_search. 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.
org_endpoint_external_references_search is provided by the Vicarius vRx MCP Server MCP server (space-c0wboy/vicarius-vrx-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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