promote_basket_item · Metis Public Health MCP: Risk & Policy

WHAT IT DOES

What promote_basket_item does on Metis Public Health

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

WHY IT NEEDS A POLICY

Why promote_basket_item needs a policy

This tool modifies the organization and persistence of data by relocating items from a transient location to permanent storage. While reversible (items could be moved back or deleted), it represents a write operation that changes where data is stored and potentially how it is accessed.

From the tool's definition The tool "promote_basket_item" performs an action that "move[s] a basket item to a stable project folder" — this is a file/data organization operation that creates or modifies the state of stored items (moving from temporary 'basket' storage to permanent…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

promote_basket_item Rate-limited

promote_basket_item 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": {
    "promote_basket_item": {
      "limits": [
        {
          "counter": "promote_basket_item_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 Metis Public Health, so you can run agents against it safely.

FAQ

Questions about promote_basket_item

What does the promote_basket_item tool do? +

Move a basket item to a stable project folder (promote from basket to active storage). It is categorised as a Write tool in the Metis Public Health MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on promote_basket_item? +

Register the Metis Public Health MCP server in PolicyLayer and add a rule for promote_basket_item: 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 Metis Public Health. Nothing to install.

What risk level is promote_basket_item? +

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

Can I rate-limit promote_basket_item? +

Yes. Add a rate_limit block to the promote_basket_item 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 promote_basket_item completely? +

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

promote_basket_item is provided by the Metis Public Health MCP server (sveritg/metis_ph). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.