AI agents call get_tag_by_slug 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 retrieves tag data from the Mealie recipe database without modifying any state. It is a simple lookup operation with no side effects. The blast radius of misuse is minimal—an attacker could only enumerate or discover tags, not alter recipe data or cause destructive changes. No financial impact, no data destruction, no code execution involved.
From the tool's definition Tool name 'get_tag_by_slug' indicates a retrieval operation that fetches a tag by its slug identifier. The absence of mutation keywords (create, update, delete, remove) and the verb 'get' confirm this is a query/fetch operation.
Documented attack patterns abuse exactly the kind of access get_tag_by_slug 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_tag_by_slug:
{
"version": "1",
"default": "deny",
"tools": {
"get_tag_by_slug": {}
}
}get_tag_by_slug is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_tag_by_slug. 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_tag_by_slug: 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_tag_by_slug 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_tag_by_slug 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_tag_by_slug. 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_tag_by_slug 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.