update_week_plan_day · Pantrist MCP: Risk & Policy

WHAT IT DOES

What update_week_plan_day does on Pantrist

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

WHY IT NEEDS A POLICY

Why update_week_plan_day needs a policy

update_week_plan_day modifies the meal plan by replacing entries for a specific day. This is a Write operation because: (1) it creates or modifies data (the meal plan), (2) it is reversible (can be updated again to restore previous entries), and (3) it does not irreversibly delete data (which would be Destructive).

From the tool's definition Tool description states 'Replace the meal-plan entries for one day' — a direct modification operation. The verb 'Replace' indicates data is being overwritten, which is a write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_week_plan_day Rate-limited

update_week_plan_day 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_week_plan_day": {
      "limits": [
        {
          "counter": "update_week_plan_day_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about update_week_plan_day

What does the update_week_plan_day tool do? +

Replace the meal-plan entries for one day, identified by date. It is categorised as a Write tool in the Pantrist 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_week_plan_day? +

Register the Pantrist MCP server in PolicyLayer and add a rule for update_week_plan_day: 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 Pantrist. Nothing to install.

What risk level is update_week_plan_day? +

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

Can I rate-limit update_week_plan_day? +

Yes. Add a rate_limit block to the update_week_plan_day 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_week_plan_day completely? +

Set action: deny in the PolicyLayer policy for update_week_plan_day. 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_week_plan_day? +

update_week_plan_day is provided by the Pantrist MCP server (pantrist-dev/pantrist-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.