Schedule a required team-building activity outside work hours
AI agents use mandatory_fun_event to create or update resources in Hilanet MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hilanet MCP environment.
This tool creates new data (a scheduled event) in what appears to be an HR/scheduling system. While satirical in nature, it performs a reversible write operation by adding an event to a schedule. It is not destructive (the event can be cancelled), not financial (no money moves), not execute (no code/commands run), and not read-only (it modifies state).
From the tool's definition Tool description states 'Schedule a required team-building activity' — the verb 'schedule' indicates creation of a calendar entry or event record, which is a write operation that modifies organizational data.
Documented attack patterns abuse exactly the kind of access mandatory_fun_event gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Hilanet MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for mandatory_fun_event:
{
"version": "1",
"default": "deny",
"tools": {
"mandatory_fun_event": {
"limits": [
{
"counter": "mandatory_fun_event_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}mandatory_fun_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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Schedule a required team-building activity outside work hours. It is categorised as a Write tool in the Hilanet MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hilanet MCP server in PolicyLayer and add a rule for mandatory_fun_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 Hilanet MCP. Nothing to install.
mandatory_fun_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 mandatory_fun_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 mandatory_fun_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.
mandatory_fun_event is provided by the Hilanet MCP server (adird/hilanet-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 Hilanet MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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12 Hilanet MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.