ensure_input_action

SERVERSbox SOURCEsbox-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/sbox/ensure-input-action.md

WHAT IT DOES

What ensure_input_action does on Sbox

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

RISK

Why ensure_input_action is rated Medium

This tool creates or adds a new input action definition to the game project, which is a reversible modification of project configuration. It does not execute external code, delete data, or move money. The blast radius is medium because misconfigured input actions could cause unexpected game behavior, but changes are undoable by removing or re-registering the action.

From the tool's definition Tool registers/creates a custom named INPUT ACTION in the project. The word 'Register' and 'so a generated game' indicate creation of a new configuration artifact within the game engine project.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ensure_input_action 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 ensure_input_action, this is the rule to start with:

ensure_input_action Rate-limited

ensure_input_action 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": {
    "ensure_input_action": {
      "limits": [
        {
          "counter": "ensure_input_action_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about ensure_input_action

What does the ensure_input_action tool do? +

Register a custom named INPUT ACTION in the project so a generated game\. It is categorised as a Write tool in the Sbox MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ensure_input_action? +

Register the Sbox MCP server in PolicyLayer and add a rule for ensure_input_action: 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 ensure_input_action? +

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

Can I rate-limit ensure_input_action? +

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

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

ensure_input_action 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.

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