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List C4D Entities

list_entities
Read-only

Enumerate Cinema 4D scene entities by kind to find objects, tags, materials, takes, render data, or shaders before inspecting or editing them.

Instructions

Enumerate scene entities of a given kind. Returns compact summaries (name, type_id, type_name, plus kind-specific fields — is_active for take / material / render_data). For kind=object also supports type_ids / tag_types / max_depth filters and include_tags / include_params to read data inline — so you can find 'all cubes with a Ttexture tag and their position in one call' without falling back to exec_python. Use this first to find what exists before describe/set_params. Note: kind=shader walks classical shader chains; for node-material graphs use list_graph_nodes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
kindYesEntity kind to list.
ownerNoOwner handle (required for kind=shader).
objectNoFilter tags to this object name (only for kind=tag). Omit to list tags on all objects.
type_idsNo(kind=object) Keep only objects whose GetType() is in this set (e.g. [5159] for cubes).
max_depthNo(kind=object) Skip objects deeper than this (root=0). Default: unlimited.
tag_typesNo(kind=object) Keep only objects carrying a tag whose type id is in this set (e.g. [5616] for Ttexture).
object_pathNoFilter tags to this object path (only for kind=tag). Use when the name is not unique.
render_dataNoRender data name (required for kind=video_post).
include_tagsNo(kind=object) Attach `tags: [{type_id, type_name, name}, ...]` to each match.
name_patternNoOptional regex to filter results by name (e.g. "^VFX_Shot00[2-9]$").
include_paramsNo(kind=object) Parameter ids to read per match. Returned under `params: {param_id: value}`.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changedv0.5.1
    • removedInput schema / definitions
      Removed value: -{
      -  "__schema0": {
      -    "anyOf": [
      -      {
      -        "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": {
      -            "$ref": "#/definitions/__schema0"
      -          }
      -        },
      -        "required": [
      -          "kind",
      -          "owner"
      -        ],
      -        "type": "object"
      -      },
      -      {
      -        "properties": {
      -          "id": {
      -            "type": "string"
      -          },
      -          "kind": {
      -            "const": "gv_node",
      -            "type": "string"
      -          },
      -          "name": {
      -            "type": "string"
      -          },
      -          "tag": {
      -            "$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"
      -      }
      -    ]
      -  }
      -}
    • removedInput schema / properties / owner / allOf
      Removed value: -[
      -  {
      -    "$ref": "#/definitions/__schema0"
      -  }
      -]
    • addedInput schema / properties / owner / anyOf
      Added 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": {
      +      "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"
      +  },
      +  {
      +    "properties": {
      +      "index": {
      +        "maximum": 9007199254740991,
      +        "minimum": 0,
      +        "type": "integer"
      +      },
      +      "kind": {
      +        "const": "shader",
      +        "type": "string"
      +      },
      +      "name": {
      +        "type": "string"
      +      },
      +      "owner": {
      +        "additionalProperties": {},
      +        "description": "Handle of the shader's owner (material, object, tag, video_post, or shader).",
      +        "properties": {
      +          "kind": {
      +            "type": "string"
      +          }
      +        },
      +        "required": [
      +          "kind"
      +        ],
      +        "type": "object"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "owner"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "properties": {
      +      "id": {
      +        "type": "string"
      +      },
      +      "kind": {
      +        "const": "gv_node",
      +        "type": "string"
      +      },
      +      "name": {
      +        "type": "string"
      +      },
      +      "tag": {
      +        "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"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "tag"
      +    ],
      +    "type": "object"
      +  }
      +]
  2. Changed1 schema field changedv0.4.3
    • changedInput schema / definitions / __schema0 / anyOf
      Previous 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": {
      -        "$ref": "#/definitions/__schema0"
      -      }
      -    },
      -    "required": [
      -      "kind",
      -      "owner"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "properties": {
      -      "id": {
      -        "type": "string"
      -      },
      -      "kind": {
      -        "const": "gv_node",
      -        "type": "string"
      -      },
      -      "name": {
      -        "type": "string"
      -      },
      -      "tag": {
      -        "$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": {
      +        "$ref": "#/definitions/__schema0"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "owner"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "properties": {
      +      "id": {
      +        "type": "string"
      +      },
      +      "kind": {
      +        "const": "gv_node",
      +        "type": "string"
      +      },
      +      "name": {
      +        "type": "string"
      +      },
      +      "tag": {
      +        "$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"
      +  }
      +]
  3. First observedv0.3.1

TDQS

A4.7/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With readOnlyHint already declaring safety, the description adds substantial behavior: what each summary contains, kind-specific fields (is_active), that include_tags/include_params read data inline in one call, and the shader-chain caveat. That is real disclosure beyond the annotation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with purpose and return shape, then usage, then the shader caveat in bold. Dense but nearly every clause carries information; the parenthetical example is slightly long but illustrative rather than filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For an 11-parameter tool with no output schema, the description covers return shape, filtering semantics and when to prefer siblings, which is close to complete. Minor gaps remain (e.g. the owner handle requirement is left entirely to the schema, and no pagination/size limits are mentioned).

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% so the baseline is 3, and the description adds genuine meaning on top: it explains the kind=object filters (type_ids/tag_types/max_depth) as a group and clarifies the inline-read behavior of include_tags/include_params, with a concrete worked example. It does not restate syntax beyond the schema, which is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource ('Enumerate scene entities of a given kind') and immediately characterizes the return payload. It distinguishes itself from nearby siblings like list_graph_nodes and describe by naming them in context.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly routes the agent: 'Use this first to find what exists before describe/set_params', plus an explicit exclusion ('for node-material graphs use list_graph_nodes'). It also names the condition that makes inline reads preferable to exec_python.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.