update_meal_plan_rule · Mealie MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_meal_plan_rule does on Mealie MCP Server

AI agents use update_meal_plan_rule 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.

WHY IT NEEDS A POLICY

Why update_meal_plan_rule needs a policy

The tool modifies existing meal plan rules but does not delete them or execute arbitrary code. The effect is reversible—the rule can be updated again or reverted. Blast radius is medium since meal planning rules affect meal suggestions and shopping lists, but impact is limited to configuration data within the Mealie system, not financial transactions or irreversible deletions.

From the tool's definition Tool name contains 'update' and description states it modifies a meal planning rule, which is a reversible operation on data within the Mealie recipe/meal planning system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_meal_plan_rule Rate-limited

update_meal_plan_rule 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_meal_plan_rule": {
      "limits": [
        {
          "counter": "update_meal_plan_rule_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mealie MCP Server, so you can run agents against it safely.

FAQ

Questions about update_meal_plan_rule

What does the update_meal_plan_rule tool do? +

Update a meal planning rule. 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_meal_plan_rule? +

Register the Mealie MCP Server MCP server in PolicyLayer and add a rule for update_meal_plan_rule: 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_meal_plan_rule? +

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

Can I rate-limit update_meal_plan_rule? +

Yes. Add a rate_limit block to the update_meal_plan_rule 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_meal_plan_rule completely? +

Set action: deny in the PolicyLayer policy for update_meal_plan_rule. 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_meal_plan_rule? +

update_meal_plan_rule is provided by the Mealie MCP Server MCP server (nikopol666/mealie-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.