light_create

Add a 3D light under a parent (undoable). 'kind' selects DirectionalLight3D (dir), OmniLight3D (omni), or SpotLight3D (spot). Returns the new node's path.

SERVERBreakpoint SOURCEbreakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 31 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/breakpoint-mcp/light-create.md

WHAT IT DOES

What light_create does on Breakpoint

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

Parameter	Type	Required	Description
`kind`	string	—	Light kind: dir \| omni \| spot (default omni)
`name`	string	—	Node name (defaults to the class name)
`parent_path`	string	Yes	Parent node path relative to the scene root; "." for the root

Parameters from the server's own tool schema.

RISK

Why light_create is rated Medium

The tool creates a new 3D light node in a scene, which is a reversible modification (marked 'undoable'). This is Write-category behavior: it creates data within a 3D scene structure. The severity is medium because while it modifies scene state, the effect is localized to adding a visual element and is explicitly reversible via undo.

From the tool's definition Tool description states 'Add a 3D light under a parent (undoable)' — this is a create operation that modifies the scene graph by adding a new node.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs light_create safely

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

light_create Rate-limited

light_create 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": {
    "light_create": {
      "limits": [
        {
          "counter": "light_create_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 Breakpoint, apply this rule, and every light_create call is checked against it from then on.

FAQ

Questions about light_create

What does the light_create tool do? +

Add a 3D light under a parent (undoable). 'kind' selects DirectionalLight3D (dir), OmniLight3D (omni), or SpotLight3D (spot). Returns the new node's path. It is categorised as a Write tool in the Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does light_create accept? +

light_create accepts 3 parameters: kind, name, parent_path. Required: parent_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on light_create? +

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

What risk level is light_create? +

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

Can I rate-limit light_create? +

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

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

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

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