List members in the Discord server with optional filters. Returns usernames, display names, roles, and join dates. Role filter is fuzzy-matched.
AI agents call list_members 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 member data from the Discord server without creating, modifying, or deleting any data. It is a straightforward read operation with optional filtering. The returned information (usernames, display names, roles, join dates) are already accessible to authorized server members. No side effects or irreversible actions occur.
From the tool's definition Tool description states it "List members" and "Returns usernames, display names, roles, and join dates" with no modification or deletion capabilities mentioned.
Documented attack patterns abuse exactly the kind of access list_members 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_members:
{
"version": "1",
"default": "deny",
"tools": {
"list_members": {}
}
}list_members is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List members in the Discord server with optional filters. Returns usernames, display names, roles, and join dates. Role filter is fuzzy-matched. 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_members: 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_members 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_members 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_members. 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_members 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.