Find server members whose username or nickname starts with a query string (prefix match). Returns { members: [...] } with id, username, nickname, roles. Use discord_list_members to page through everyone. Read-only.
AI agents call discord_search_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 with no side effects—it is purely informational. The description explicitly marks it as 'Read-only', and the operation (prefix-matched search returning member metadata) has no capacity to create, modify, delete, or execute actions.
From the tool's definition Tool description explicitly states 'Read-only' and performs a search/query operation that 'Find[s] server members' and 'Returns' their metadata (id, username, nickname, roles) with no modification capability.
Attacks that exploit this kind of access
Find server members whose username or nickname starts with a query string (prefix match). Returns { members: [...] } with id, username, nickname, roles. Use discord_list_members to page through everyone. Read-only. 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_search_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.
discord_search_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 discord_search_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 discord_search_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.
discord_search_members 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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