publish_draft_item · Playfab MCP: Risk & Policy

WHAT IT DOES

What publish_draft_item does on Playfab

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

WHY IT NEEDS A POLICY

Why publish_draft_item needs a policy

Publishing a draft item modifies the catalog configuration and makes content available to players, constituting a reversible state change (Write category). Severity is medium because while this affects player-facing content, the action is reversible (items can be unpublished or deleted), and the blast radius is limited to catalog management rather than financial transactions or destructive data loss.

From the tool's definition Tool name 'publish_draft_item' and description 'Publishes a draft item, making it available to players' indicates creation/modification of catalog state by transitioning a draft item to published/live status.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish_draft_item Rate-limited

publish_draft_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": {
    "publish_draft_item": {
      "limits": [
        {
          "counter": "publish_draft_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 Playfab, so you can run agents against it safely.

FAQ

Questions about publish_draft_item

What does the publish_draft_item tool do? +

Publishes a draft item, making it available to players. It is categorised as a Write tool in the Playfab MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on publish_draft_item? +

Register the Playfab MCP server in PolicyLayer and add a rule for publish_draft_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 Playfab. Nothing to install.

What risk level is publish_draft_item? +

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

Can I rate-limit publish_draft_item? +

Yes. Add a rate_limit block to the publish_draft_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 publish_draft_item completely? +

Set action: deny in the PolicyLayer policy for publish_draft_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 publish_draft_item? +

publish_draft_item is provided by the Playfab MCP server (@akiojin/playfab-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.