List all roles in the Discord server, sorted by position. Returns role names, IDs, colors, and member counts.
AI agents call 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 the Discord server without altering any data or triggering external operations. It fits the Read category definition: 'retrieves or queries data; no side effects (search, list, get, fetch).' The severity is low because unauthorized enumeration of roles poses minimal direct risk compared to tools that modify permissions, delete data, or ban members.
From the tool's definition Tool name is 'list_roles' and description states it 'List all roles' and 'Returns role names, IDs, colors, and member counts' — purely informational retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access list_roles gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Discord, and nothing reaches the server without passing your rules. This is the rule we recommend for list_roles:
{
"version": "1",
"default": "deny",
"tools": {
"list_roles": {}
}
}list_roles is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all roles in the Discord server, sorted by position. Returns role names, IDs, colors, and member counts. 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 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.
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 Discord MCP server (hardheadhackerhead/discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Discord, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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139 Discord tools catalogued and risk-classified — across an index of 43,000+ MCP servers.