edit_script

Edit an existing C# script. Supports find/replace, inserting code at a line number, or appending code to the class body

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/edit-script.md

WHAT IT DOES

What edit_script does on Sbox

AI agents use edit_script 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 edit_script is rated Medium

This tool modifies C# scripts in the s&box game engine by editing, inserting, and appending code. While it doesn't irreversibly delete data (which would be Destructive) and doesn't execute code directly (which would be Execute), it does create and modify game scripts reversibly.

From the tool's definition Tool description states it can "Edit an existing C# script" and supports "find/replace, inserting code at a line number, or appending code to the class body". These are modification operations that create or alter code reversibly.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

edit_script Rate-limited

edit_script 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": {
    "edit_script": {
      "limits": [
        {
          "counter": "edit_script_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 edit_script call is checked against it from then on.

FAQ

Questions about edit_script

What does the edit_script tool do? +

Edit an existing C# script. Supports find/replace, inserting code at a line number, or appending code to the class body. 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 edit_script? +

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

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

Can I rate-limit edit_script? +

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

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

edit_script 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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