set_runtime_property

Set a component property value during play mode — tweak values live while the game runs

SERVERSbox SOURCEsbox-mcp-server

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/sbox/set-runtime-property.md

WHAT IT DOES

What set_runtime_property does on Sbox

AI agents invoke set_runtime_property to trigger actions in Sbox. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why set_runtime_property is rated High

This tool modifies live runtime state of a running game engine instance. It executes changes that affect the running simulation in real time. While it resembles a Write operation, the fact that it operates 'during play mode' on a live running process makes it Execute — it's triggering live behavioral changes in a running system.

From the tool's definition Set a component property value during play mode — tweak values live while the game runs

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_runtime_property safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_runtime_property, this is the rule to start with:

set_runtime_property Rate-limited

set_runtime_property stays usable, but rate-capped: a runaway agent can't fire it dozens of times 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_runtime_property": {
      "limits": [
        {
          "counter": "set_runtime_property_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every set_runtime_property call is checked against it from then on.

FAQ

Questions about set_runtime_property

What does the set_runtime_property tool do? +

Set a component property value during play mode — tweak values live while the game runs. It is categorised as a Execute tool in the Sbox MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on set_runtime_property? +

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

What risk level is set_runtime_property? +

set_runtime_property is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit set_runtime_property? +

Yes. Add a rate_limit block to the set_runtime_property 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_runtime_property completely? +

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

set_runtime_property is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Sbox, and thousands of servers like it.

This server

All 207 Sbox tools → High-risk tools on this server →

Across the catalogue

set_breakpoint on Frida Game Hacking MCP → All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →