Search for guild members whose username or nickname starts with the provided query string. Returns up to the specified limit of matching members.
AI agents call search_members to retrieve information from Discord MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and filters member data based on search criteria without modifying, deleting, or executing any operations. It is a simple lookup/query function that returns information about existing guild members. The blast radius of misuse is minimal—an attacker could enumerate members but cannot modify permissions, delete accounts, or trigger external operations.
From the tool's definition Tool name 'search_members' and description 'Search for guild members whose username or nickname starts with the provided query string. Returns up to the specified limit of matching members.' indicates a read-only query operation with no side effects.
Attacks that exploit this kind of access
Search for guild members whose username or nickname starts with the provided query string. Returns up to the specified limit of matching members. It is categorised as a Read tool in the Discord MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Discord MCP Server MCP server in PolicyLayer and add a rule for 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 MCP Server. Nothing to install.
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 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 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.
search_members is provided by the Discord MCP Server MCP server (jackglick/discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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