Interactively build a range using natural language prompts. Args: prompt: Natural language description of desired range user_id: Optional user ID (admin only) Returns: Suggested configuration and deployment plan
AI agents invoke interactive_build_range 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 executes infrastructure deployment commands based on user-provided arguments (natural language prompts). While it may include interactive confirmation steps, the core function triggers external operations that provision cyber range resources.
From the tool's definition Tool 'interactively_build_range' executes deployment operations for cyber range environments. Description states it 'build[s] a range' and returns 'deployment plan', indicating it triggers infrastructure provisioning whose effects depend on the natural…
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access interactive_build_range 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 interactive_build_range:
{
"version": "1",
"default": "deny",
"tools": {
"interactive_build_range": {
"limits": [
{
"counter": "interactive_build_range_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}interactive_build_range 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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Interactively build a range using natural language prompts. Args: prompt: Natural language description of desired range user_id: Optional user ID (admin only) Returns: Suggested configuration and deployment plan. 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 interactive_build_range: 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.
interactive_build_range 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 interactive_build_range 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 interactive_build_range. 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.
interactive_build_range 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.