List all users in Morpheus. Fetches ALL pages automatically — never truncated.
AI agents call list_users to retrieve information from Morpheus MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves user information from a multi-tenant cloud management system (Morpheus) without modifying, deleting, or executing operations. However, the severity is elevated to 'medium' rather than 'low' because exposure of all users across a multi-tenant environment to an AI agent could enable social engineering, privilege escalation, or targeted attacks if the agent is compromised or acts on malicious…
From the tool's definition Tool name is 'list_users' and description states it 'Fetches ALL pages automatically — never truncated', indicating a retrieval operation with no modification of data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all users in Morpheus. Fetches ALL pages automatically — never truncated. It is categorised as a Read tool in the Morpheus MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Morpheus MCP Server MCP server in PolicyLayer and add a rule for list_users: 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 Morpheus MCP Server. Nothing to install.
list_users 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 list_users 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 list_users. 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.
list_users is provided by the Morpheus MCP Server MCP server (nixndme/morpheus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_users is one line of Morpheus MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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