Modify an existing scheduled event. You can update its name, description, times, or status.
AI agents use edit_event 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.
Event modification is a reversible write operation. The blast radius is medium because modifying event details could disrupt server schedules, confuse members about meeting times, or alter event visibility/status, but the changes remain undoable through further edits.
From the tool's definition The tool is described as 'Modify an existing scheduled event' with capability to 'update its name, description, times, or status.' This is a modification operation (Write) rather than read-only (Read), and does not permanently delete data (Destructive) or…
Documented attack patterns abuse exactly the kind of access edit_event 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 edit_event:
{
"version": "1",
"default": "deny",
"tools": {
"edit_event": {
"limits": [
{
"counter": "edit_event_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}edit_event 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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Modify an existing scheduled event. You can update its name, description, times, or status. 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 edit_event: 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.
edit_event 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 edit_event 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 edit_event. 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.
edit_event 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.