Medium Risk

update_recipe

Replaces the ingredients and instructions of an existing recipe. Args: slug: The unique text identifier for the recipe to be updated. ingredients: A list of ingredients for the recipe include quantities and units. instructions: A list of instructions for preparing the recipe. Returns: Dict[str, A...

How to control update_recipe ↓

AI agents use update_recipe to create or update resources in Mealie MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mealie MCP Server environment.

Medium Risk

This tool creates or modifies data reversibly (Write category). It updates an existing recipe's ingredients and instructions without deleting or destroying data. The modification is reversible since subsequent calls can update the recipe again.

From the tool's definition Tool name: update_recipe. Description states it 'Replaces the ingredients and instructions of an existing recipe,' modifying existing data reversibly with arguments for slug, ingredients, and instructions.

Documented attack patterns abuse exactly the kind of access update_recipe 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 update_recipe:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_recipe": {
      "limits": [
        {
          "counter": "update_recipe_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

update_recipe 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.

  1. Create a free account and register Mealie MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the update_recipe tool do? +

Replaces the ingredients and instructions of an existing recipe. Args: slug: The unique text identifier for the recipe to be updated. ingredients: A list of ingredients for the recipe include quantities and units. instructions: A list of instructions for preparing the recipe. Returns: Dict[str, Any]: The updated recipe details. It is categorised as a Write tool in the Mealie MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_recipe? +

Register the Mealie MCP Server MCP server in PolicyLayer and add a rule for update_recipe: 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.

What risk level is update_recipe? +

update_recipe is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_recipe? +

Yes. Add a rate_limit block to the update_recipe 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.

How do I block update_recipe completely? +

Set action: deny in the PolicyLayer policy for update_recipe. 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.

What MCP server provides update_recipe? +

update_recipe 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.

Enforce policy on every Mealie MCP Server tool call.

Deterministic rules across all 44 Mealie MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

44 Mealie MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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