Get all categories that have no recipes assigned. Returns: List[Dict[str, Any]]: List of empty categories
AI agents call get_empty_categories to retrieve information from Mealie MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves category information with no side effects. It performs a simple data read operation on the Mealie recipe database. No data is created, modified, deleted, or destroyed. The blast radius of misuse is minimal—an agent could only over-call this endpoint, causing minor performance impact at worst.
From the tool's definition Tool name 'get_empty_categories' and description 'Get all categories that have no recipes assigned' indicate a retrieval operation. Returns a list without modifying any data.
Documented attack patterns abuse exactly the kind of access get_empty_categories gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mealie MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_empty_categories:
{
"version": "1",
"default": "deny",
"tools": {
"get_empty_categories": {}
}
}get_empty_categories is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all categories that have no recipes assigned. Returns: List[Dict[str, Any]]: List of empty categories. It is categorised as a Read tool in the Mealie MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Mealie MCP Server MCP server in PolicyLayer and add a rule for get_empty_categories: 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 Mealie MCP Server. Nothing to install.
get_empty_categories 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 get_empty_categories 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 get_empty_categories. 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.
get_empty_categories is provided by the Mealie MCP Server MCP server (rldiao/mealie-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 44 Mealie MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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44 Mealie MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.