Import and restore range from backup. Args: backup_file: Path to backup file restore_vms: Restore VM disk images restore_config: Restore configuration user_id: Optional user ID (admin only) Returns: Backup import result
AI agents use import_range_backup to create or update resources in Ludus FastMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ludus FastMCP environment.
This tool creates or modifies data reversibly by restoring from backup. While it has significant blast radius (could overwrite existing range configurations and VM state), it is reversible via another backup/restore cycle, distinguishing it from Destructive operations. The high severity reflects that restoring incorrect or malicious backups could compromise the entire range environment.
From the tool's definition Tool performs 'Import and restore range from backup' with arguments to restore VM disk images and configuration. This modifies the state of cyber range environments by restoring previously backed-up infrastructure and settings.
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access import_range_backup 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 import_range_backup:
{
"version": "1",
"default": "deny",
"tools": {
"import_range_backup": {
"limits": [
{
"counter": "import_range_backup_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}import_range_backup 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.
Free to start. No card required.
Import and restore range from backup. Args: backup_file: Path to backup file restore_vms: Restore VM disk images restore_config: Restore configuration user_id: Optional user ID (admin only) Returns: Backup import result. It is categorised as a Write tool in the Ludus FastMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for import_range_backup: 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.
import_range_backup 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 import_range_backup 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 import_range_backup. 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.
import_range_backup 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.