List active threads in the Discord server. Optionally filter to a specific channel (fuzzy-matched).
AI agents call list_threads 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 information about threads without creating, modifying, deleting, executing code, or moving money. It is a straightforward read operation with minimal security risk, even in a Discord server context where an AI agent might misuse it to exfiltrate channel structure information. The blast radius is limited to information disclosure.
From the tool's definition Tool name 'list_threads' and description 'List active threads in the Discord server' indicate a retrieval operation with 'no side effects' (Read category definition).
Documented attack patterns abuse exactly the kind of access list_threads 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_threads:
{
"version": "1",
"default": "deny",
"tools": {
"list_threads": {}
}
}list_threads is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List active threads in the Discord server. Optionally filter to a specific channel (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_threads: 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_threads 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_threads 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_threads. 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_threads 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.