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blender_transform

Modify object position, rotation, scale, or apply and reset transforms in Blender 3D scenes using multiple operation types.

Instructions

Transform objects in 3D space.

Supports multiple operations through the operation parameter:

  • set_location: Set object position

  • set_rotation: Set object rotation (degrees)

  • set_scale: Set object scale

  • translate: Move object by offset

  • rotate: Rotate object by angle

  • scale: Scale object by factor

  • apply_transform: Apply transforms to mesh

  • reset_transform: Reset transforms to identity

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
operationNoTransform operation typeset_location
object_namesNoName(s) of object(s) to transform
xNo
yNo
zNo
rotation_xNo
rotation_yNo
rotation_zNo
scale_xNo
scale_yNo
scale_zNo
spaceNoCoordinate space (WORLD, LOCAL, CURSOR, PARENT)WORLD
relativeNoApply transformation relative to current values

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, and the description does not disclose behavioral traits such as side effects (e.g., apply_transform being destructive), authorization needs, or rate limits. It only lists operations without addressing safety or mutation behavior.

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?

The description is front-loaded with purpose and uses a well-structured bulleted list for operations. It is concise without extraneous text, though it could be slightly more compact.

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

Completeness2/5

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

Despite having 13 parameters and an output schema, the description lacks crucial context on parameter interactions (e.g., required params per operation) and does not explain coordinate spaces or relative flag behavior. This leaves significant gaps for agent use.

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 only 31%, but the description adds value by enumerating operation types. However, it fails to clarify which parameters are used for each operation (e.g., x/y/z for set_location) and does not fully compensate for the low schema coverage.

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?

The description clearly states the tool transforms objects in 3D space and explicitly lists all supported operations (set_location, set_rotation, etc.). It distinguishes from sibling tools by its specific focus on transformations, providing a specific verb and resource.

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

Usage Guidelines3/5

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

The description implicitly suggests use for 3D object transforms but lacks explicit guidance on when to use this tool vs alternatives (e.g., translate vs set_location). No exclusionary language or alternative tool references are provided.

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

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