Schedule recurring tasks for the range. Args: tasks: List of tasks to schedule schedule: Cron expression for scheduling user_id: Optional user ID (admin only) Returns: Task scheduling result
AI agents invoke schedule_range_tasks to trigger actions in Ludus FastMCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool schedules recurring automated tasks using cron expressions, which means it triggers external operations on a cyber range environment repeatedly over time. The blast radius is high because misconfigured or malicious cron schedules could repeatedly execute harmful operations across the range infrastructure, potentially affecting security testing environments and user resources.
From the tool's definition Schedule recurring tasks for the range... Cron expression for scheduling
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access schedule_range_tasks gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ludus FastMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for schedule_range_tasks:
{
"version": "1",
"default": "deny",
"tools": {
"schedule_range_tasks": {
"limits": [
{
"counter": "schedule_range_tasks_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}schedule_range_tasks stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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Schedule recurring tasks for the range. Args: tasks: List of tasks to schedule schedule: Cron expression for scheduling user_id: Optional user ID (admin only) Returns: Task scheduling result. It is categorised as a Execute tool in the Ludus FastMCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for schedule_range_tasks: 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 Ludus FastMCP. Nothing to install.
schedule_range_tasks is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the schedule_range_tasks 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 schedule_range_tasks. 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.
schedule_range_tasks is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 201 Ludus FastMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.