open_scene

Open a scene by path

SERVERCocos SOURCEcaravanglory/cocos-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/caravanglory-cocos-mcp-server/open-scene.md

WHAT IT DOES

What open_scene does on Cocos

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

RISK

Why open_scene is rated Medium

Opening a scene changes the active scene in the editor—a state modification that affects subsequent operations and the editor's in-memory state. This is reversible (you can open a different scene), distinguishing it from Destructive actions. It's more impactful than a Read (which would be querying scene metadata) since it actively modifies editor state.

From the tool's definition Tool name 'open_scene' and description 'Open a scene by path' indicate this loads/switches a scene in the Cocos Creator editor.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs open_scene safely

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

open_scene Rate-limited

open_scene 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": {
    "open_scene": {
      "limits": [
        {
          "counter": "open_scene_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 Cocos, apply this rule, and every open_scene call is checked against it from then on.

FAQ

Questions about open_scene

What does the open_scene tool do? +

Open a scene by path. It is categorised as a Write tool in the Cocos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on open_scene? +

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

What risk level is open_scene? +

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

Can I rate-limit open_scene? +

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

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

open_scene is provided by the Cocos MCP server (caravanglory/cocos-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 Cocos, and thousands of servers like it.

This server

All 157 Cocos tools →

Across the catalogue

The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →