get_object_layerFind out which layer an object, tag, or material belongs to in Cinema 4D, returning null if none is assigned.
Return the layer currently assigned to a target entity (object / tag / material), or null if unassigned.
| Name | Required | Description | Default |
|---|---|---|---|
| target | Yes | Entity to query. |
Changes observed during successful MCP inspections. Dates show when Glama detected each change.
v0.4.3Input schema / definitions / __schema0 / anyOfPrevious value: -[
- {
- "properties": {
- "kind": {
- "const": "object",
- "type": "string"
- },
- "name": {
- "type": "string"
- },
- "path": {
- "type": "string"
- }
- },
- "required": [
- "kind"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "render_data",
- "type": "string"
- },
- "name": {
- "type": "string"
- }
- },
- "required": [
- "kind",
- "name"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "take",
- "type": "string"
- },
- "name": {
- "type": "string"
- }
- },
- "required": [
- "kind",
- "name"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "material",
- "type": "string"
- },
- "name": {
- "type": "string"
- }
- },
- "required": [
- "kind",
- "name"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "tag",
- "type": "string"
- },
- "object": {
- "type": "string"
- },
- "object_path": {
- "type": "string"
- },
- "tag_name": {
- "type": "string"
- },
- "type_id": {
- "maximum": 9007199254740991,
- "minimum": -9007199254740991,
- "type": "integer"
- }
- },
- "required": [
- "kind"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "video_post",
- "type": "string"
- },
- "render_data": {
- "type": "string"
- },
- "type_id": {
- "maximum": 9007199254740991,
- "minimum": -9007199254740991,
- "type": "integer"
- }
- },
- "required": [
- "kind",
- "render_data",
- "type_id"
- ],
- "type": "object"
- },
- {
- "properties": {
- "index": {
- "maximum": 9007199254740991,
- "minimum": 0,
- "type": "integer"
- },
- "kind": {
- "const": "shader",
- "type": "string"
- },
- "name": {
- "type": "string"
- },
- "owner": {
- "allOf": [
- {
- "$ref": "#/definitions/__schema0"
- }
- ]
- }
- },
- "required": [
- "kind",
- "owner"
- ],
- "type": "object"
- },
- {
- "properties": {
- "id": {
- "type": "string"
- },
- "kind": {
- "const": "gv_node",
- "type": "string"
- },
- "name": {
- "type": "string"
- },
- "tag": {
- "allOf": [
- {
- "$ref": "#/definitions/__schema0"
- }
- ]
- }
- },
- "required": [
- "kind",
- "tag"
- ],
- "type": "object"
- },
- {
- "properties": {
- "kind": {
- "const": "plugin_options",
- "type": "string"
- },
- "plugin_id": {
- "anyOf": [
- {
- "maximum": 9007199254740991,
- "minimum": -9007199254740991,
- "type": "integer"
- },
- {
- "type": "string"
- }
- ]
- },
- "plugin_type": {
- "enum": [
- "command",
- "object",
- "tag",
- "material",
- "shader",
- "video_post",
- "scene_loader",
- "scene_saver",
- "bitmap_loader",
- "bitmap_saver",
- "tool",
- "preference",
- "node",
- "sculpt_brush"
- ],
- "type": "string"
- }
- },
- "required": [
- "kind",
- "plugin_id"
- ],
- "type": "object"
- }
-]New value: +[
+ {
+ "properties": {
+ "kind": {
+ "const": "object",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ },
+ "path": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "render_data",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "name"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "take",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "name"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "material",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "name"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "layer",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "name"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "tag",
+ "type": "string"
+ },
+ "object": {
+ "type": "string"
+ },
+ "object_path": {
+ "type": "string"
+ },
+ "tag_name": {
+ "type": "string"
+ },
+ "type_id": {
+ "maximum": 9007199254740991,
+ "minimum": -9007199254740991,
+ "type": "integer"
+ }
+ },
+ "required": [
+ "kind"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "video_post",
+ "type": "string"
+ },
+ "render_data": {
+ "type": "string"
+ },
+ "type_id": {
+ "maximum": 9007199254740991,
+ "minimum": -9007199254740991,
+ "type": "integer"
+ }
+ },
+ "required": [
+ "kind",
+ "render_data",
+ "type_id"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "index": {
+ "maximum": 9007199254740991,
+ "minimum": 0,
+ "type": "integer"
+ },
+ "kind": {
+ "const": "shader",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ },
+ "owner": {
+ "allOf": [
+ {
+ "$ref": "#/definitions/__schema0"
+ }
+ ]
+ }
+ },
+ "required": [
+ "kind",
+ "owner"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "kind": {
+ "const": "gv_node",
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ },
+ "tag": {
+ "allOf": [
+ {
+ "$ref": "#/definitions/__schema0"
+ }
+ ]
+ }
+ },
+ "required": [
+ "kind",
+ "tag"
+ ],
+ "type": "object"
+ },
+ {
+ "properties": {
+ "kind": {
+ "const": "plugin_options",
+ "type": "string"
+ },
+ "plugin_id": {
+ "anyOf": [
+ {
+ "maximum": 9007199254740991,
+ "minimum": -9007199254740991,
+ "type": "integer"
+ },
+ {
+ "type": "string"
+ }
+ ]
+ },
+ "plugin_type": {
+ "enum": [
+ "command",
+ "object",
+ "tag",
+ "material",
+ "shader",
+ "video_post",
+ "scene_loader",
+ "scene_saver",
+ "bitmap_loader",
+ "bitmap_saver",
+ "tool",
+ "preference",
+ "node",
+ "sculpt_brush"
+ ],
+ "type": "string"
+ }
+ },
+ "required": [
+ "kind",
+ "plugin_id"
+ ],
+ "type": "object"
+ }
+]v0.3.1Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The readOnlyHint annotation already establishes this as a non-mutating operation. The description adds the null return case and the notion of 'currently assigned', which clarifies the dynamic nature of the query. However, it does not disclose error behavior or edge cases, such as what happens if the target doesn't exist. Given the annotation covers the safety profile, this is adequate but not more.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, succinct sentence that front-loads the core action and includes the key return behavior. Every word serves a purpose, and there is no redundancy. This is a model of conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a getter tool with a single parameter and no output schema, the description provides sufficient context: what it returns, what input it needs, and the null case. One could ask for more detail on error handling, but the simplicity of the tool means this is nearly complete. It doesn't describe the return type (e.g., string vs. ID), but that's often self-evident from the domain.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema parameter has a description ('Entity to query.'), giving 100% coverage and setting a baseline of 3. However, the description's parenthetical '(object / tag / material)' provides an incomplete list of acceptable kinds, omitting valid kinds like 'take', 'shader', and 'video_post' from the schema. This could mislead an agent into thinking only those three kinds are supported, potentially causing the tool to be underused or misused.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Return'), a clear resource ('the layer'), and a clear scope ('currently assigned to a target entity'). It distinguishes itself from siblings like 'list_layers' by focusing on querying a single entity's layer rather than enumerating all layers. This makes it unambiguous which action the tool performs.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use this tool (to get the layer of a specific entity) but does not explicitly mention alternatives or situations where one would not use it. For instance, there's no note about not using it for listing layers or for getting other properties. The usage context is clear but not explicitly delineated, so a 3 is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
We provide all the information about MCP servers via our MCP API.
curl -X GET 'https://glama.ai/api/mcp/v1/servers/kumoproductions/mcp-cinema4d'
If you have feedback or need assistance with the MCP directory API, please join our Discord server