List all roles in a server (excluding @everyone), highest-first, with color, position, member count, and permissions. Read-only. Returns { roles: [...] }. Use discord_get_role_members to see who holds a given role.
AI agents call discord_list_roles to retrieve information from Discord without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries role information from a Discord server with no side effects. It performs a read operation that does not create, modify, delete, or execute any actions. The read-only designation and return-only nature confirm it belongs in the Read category with low severity.
From the tool's definition Tool description explicitly states "List all roles in a server" and "Read-only". Returns role metadata (color, position, member count, permissions) without modification.
Attacks that exploit this kind of access
List all roles in a server (excluding @everyone), highest-first, with color, position, member count, and permissions. Read-only. Returns { roles: [...] }. Use discord_get_role_members to see who holds a given role. It is categorised as a Read tool in the Discord MCP Server, which means it retrieves data without modifying state.
Register the Discord MCP server in PolicyLayer and add a rule for discord_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 Discord. Nothing to install.
discord_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 discord_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 discord_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.
discord_list_roles is provided by the Discord MCP server (@pasympa/discord-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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