End a poll early before its scheduled duration expires.
AI agents use end_poll to create or update resources in Discord — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Discord environment.
Ending a poll prematurely is a reversible state change (the poll existed and had data; ending it closes it but data is retained). It modifies the state of a Discord poll object but does not delete data irreversibly. It is closer to Write than Destructive since poll results and history remain accessible after ending.
From the tool's definition End a poll early before its scheduled duration expires
Documented attack patterns abuse exactly the kind of access end_poll 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 end_poll:
{
"version": "1",
"default": "deny",
"tools": {
"end_poll": {
"limits": [
{
"counter": "end_poll_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}end_poll stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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End a poll early before its scheduled duration expires. It is categorised as a Write tool in the Discord MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Discord MCP server in PolicyLayer and add a rule for end_poll: 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.
end_poll is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the end_poll 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 end_poll. 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.
end_poll 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.