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Delete Animation Track

delete_track
Destructive

Removes an entire CTrack from a Cinema 4D target using its parameter ID and optional vector component, returning whether removal succeeded.

Instructions

Remove an entire CTrack (identified by param_id + optional component) from the target. Returns {removed: bool}.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
handleYesAnimated target.
param_idYesTop-level description id.
componentNoVector sub-component. null / omitted for scalar tracks.

Schema Changelog

Changes observed during successful MCP inspections.

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  2. Changed1 schema field changedv0.4.3
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      +            "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

B3.3/5.0
Behavior3/5

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

destructiveHint=true already covers the safety profile, and the description is consistent with it. It adds useful context that the whole track (not individual keys) is removed and that the result is `{removed: bool}`, but says nothing about reversibility, undo, or side effects on existing keyframes.

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

Conciseness5/5

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

Two compact sentences, front-loaded with the action and identifier, closing with the return shape. No filler.

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

Completeness3/5

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

Acceptable for a destructive mutation: the target identity and return value are covered and no output schema is needed. However, with no annotations beyond destructiveHint and no usage context, an agent lacks guidance on when this is the correct tool versus delete_keyframe.

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

Parameters3/5

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

Schema description coverage is 100%, so the schema already documents handle, param_id, and component. The description restates the identity rule (param_id + optional component) but adds no format or edge-case detail beyond it, matching the baseline 3.

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

Purpose4/5

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

States a specific verb (Remove) and resource (an entire CTrack), plus its identifier (param_id + optional component). It implicitly separates itself from delete_keyframe by emphasizing 'entire track', though it never names that sibling explicitly.

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

Usage Guidelines2/5

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

No when-to-use guidance, prerequisites, or alternatives are given. An agent must infer that this is the track-level counterpart to delete_keyframe rather than keyframe-level deletion, since the description never routes between them.

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