List available templates. Args: user_id: Optional user ID (admin only) Returns: List of available templates
AI agents call list_templates to retrieve information from Ludus FastMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays existing templates without creating, modifying, deleting, or executing any operations. It is a straightforward read-only data retrieval operation, the least risky category.
From the tool's definition Tool name 'list_templates' and description 'List available templates' indicate a query/retrieval operation with no side effects. The optional user_id parameter is for filtering scope, not for modification.
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access list_templates 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 list_templates:
{
"version": "1",
"default": "deny",
"tools": {
"list_templates": {}
}
}list_templates is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List available templates. Args: user_id: Optional user ID (admin only) Returns: List of available templates. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for list_templates: 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.
list_templates is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_templates 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 list_templates. 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.
list_templates 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.
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201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.