set_title_data · Playfab MCP: Risk & Policy

WHAT IT DOES

What set_title_data does on Playfab

AI agents use set_title_data 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 set_title_data needs a policy

This tool modifies (writes) game configuration data that has organization-wide effects on all players. It is not destructive because configuration changes are typically reversible via subsequent writes. It is not Execute because it is not running arbitrary code or triggering unpredictable operations—it is a direct data modification.

From the tool's definition Tool name: 'set_title_data'. Description: 'Sets global game configuration visible to ALL players.' The verb 'Sets' indicates modification of data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_title_data Rate-limited

set_title_data 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": {
    "set_title_data": {
      "limits": [
        {
          "counter": "set_title_data_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 set_title_data

What does the set_title_data tool do? +

Sets global game configuration visible to ALL players. Use for:. 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 set_title_data? +

Register the Playfab MCP server in PolicyLayer and add a rule for set_title_data: 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 set_title_data? +

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

Can I rate-limit set_title_data? +

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

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

set_title_data 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.