# set_light_param

Set light parameter.

Agent View of the PolicyLayer registry record for `set_light_param`. HTML page: https://policylayer.com/tools/yanhuifair-godot-mcp/set-light-param

## Facts

- Tool: `set_light_param`
- Server: Godot (`@yanhuifair/godot-mcp`) — https://policylayer.com/tools/yanhuifair-godot-mcp.md
- Install: `npx -y @yanhuifair/godot-mcp`
- Homepage: git+https://github.com/yanhuifair/Godot-MCP.git
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 4 (4 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `param` | string | yes | Light parameter (e.g. "energy", "color", "shadow_enabled") |
| `value` | string | yes | New value |
| `light_name` | string | yes | Name of the light node |
| `scene_path` | string | yes | Path to .tscn scene file |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "set_light_param",
    "arguments": {
      "param": "<param>",
      "value": "<value>",
      "light_name": "<light_name>",
      "scene_path": "<scene_path>"
    }
  }
}
```

## Why set_light_param is rated Medium

This tool modifies engine configuration state (light parameters) but does not execute arbitrary code, delete data, or produce financial effects. The change is reversible through subsequent set operations. Categorized as Write rather than Execute because it targets a specific, bounded parameter rather than arbitrary code execution.

From the tool's own definition: "Tool name 'set_light_param' and description 'Set light parameter' indicate modification of light properties in the Godot Engine. This creates or modifies engine state (light parameters) reversibly."

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Godot:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_light_param": {
      "limits": [
        {
          "counter": "set_light_param_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Godot (281)

- `delete_file` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/delete-file.md
- `editor_delete_asset` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-delete-asset.md
- `editor_delete_selected` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-delete-selected.md
- `editor_remove_autoload` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-remove-autoload.md
- `editor_remove_input_action` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-remove-input-action.md
- `editor_remove_node` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-remove-node.md
- `remove_animation_track` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-animation-track.md
- `remove_audio_bus` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-audio-bus.md
- `remove_autoload` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-autoload.md
- `remove_input_action` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-input-action.md
- `remove_node` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-node.md
- `remove_shader_graph_node` — Destructive — https://policylayer.com/tools/yanhuifair-godot-mcp/remove-shader-graph-node.md
- `compile_shader` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/compile-shader.md
- `editor_bake_lightmaps` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-bake-lightmaps.md
- `editor_bake_navigation` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-bake-navigation.md
- `editor_debug_break` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-debug-break.md
- `editor_debug_continue` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-debug-continue.md
- `editor_debug_step` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-debug-step.md
- `editor_debug_step_over` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-debug-step-over.md
- `editor_enable_plugin` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-enable-plugin.md
- `editor_evaluate_expression` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-evaluate-expression.md
- `editor_focus` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-focus.md
- `editor_get_class_doc` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-get-class-doc.md
- `editor_open_asset` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-open-asset.md
- `editor_open_dock` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-open-dock.md
- `editor_play` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-play.md
- `editor_reimport_asset` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-reimport-asset.md
- `editor_reload_scene` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-reload-scene.md
- `editor_run_gdscript` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-run-gdscript.md
- `editor_run_specific_scene` — Execute — https://policylayer.com/tools/yanhuifair-godot-mcp/editor-run-specific-scene.md
- …and 251 more: https://policylayer.com/tools/yanhuifair-godot-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=yanhuifair-godot-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/yanhuifair-godot-mcp