Identidad, plataforma, versión y privilegios de la sesión.
AI agents call whoami to retrieve information from ArcGIS MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about the current authenticated session—identity, platform, version, and privileges. It performs no data modification, deletion, code execution, or financial operations. It is a standard read-only identity/status check operation, analogous to Unix 'whoami' which simply retrieves the current user context.
From the tool's definition Tool name 'whoami' and description 'Identidad, plataforma, versión y privilegios de la sesión' (Identity, platform, version and session privileges) indicates retrieval of current session metadata without modification or side effects.
Attacks that exploit this kind of access
Identidad, plataforma, versión y privilegios de la sesión. It is categorised as a Read tool in the ArcGIS MCP MCP Server, which means it retrieves data without modifying state.
Register the ArcGIS MCP server in PolicyLayer and add a rule for whoami: 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 ArcGIS MCP. Nothing to install.
whoami 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 whoami 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 whoami. 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.
whoami is provided by the ArcGIS MCP server (renemorenow/arcgis-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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