List all roles in Morpheus.
AI agents call list_roles 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 performs a read-only operation to enumerate roles in the Morpheus system. It has no side effects, does not execute code or workflows, does not modify data, and does not delete or move resources. The primary risk is information disclosure about role definitions, which is typically low severity in a properly configured access control environment.
From the tool's definition Tool name 'list_roles' and description 'List all roles in Morpheus' indicate a query operation that retrieves role information without modifying or executing changes to infrastructure.
Attacks that exploit this kind of access
List all roles in Morpheus. 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_roles: 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_roles 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_roles 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_roles. 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_roles 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.
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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