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download_sketchfab_model

Download a Sketchfab model by its unique ID and import it into Blender, scaled to a specified target size in Blender units.

Instructions

Download and import a Sketchfab model by its UID.
The model will be scaled so its largest dimension equals target_size.

Parameters:
- uid: The unique identifier of the Sketchfab model
- target_size: REQUIRED. The target size in Blender units/meters for the largest dimension.
              You must specify the desired size for the model.
              Examples:
              - Chair: target_size=1.0 (1 meter tall)
              - Table: target_size=0.75 (75cm tall)
              - Car: target_size=4.5 (4.5 meters long)
              - Person: target_size=1.7 (1.7 meters tall)
              - Small object (cup, phone): target_size=0.1 to 0.3

Returns a message with import details including object names, dimensions, and bounding box.
The model must be downloadable and you must have proper access rights.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
uidYes
target_sizeYes
user_promptNo
Behavior3/5

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

Discloses scaling and return of import details, but omits potential side effects (e.g., scene impact) and error conditions. No annotations to supplement.

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?

Concise with clear structure: main purpose, scaling, then parameter details with examples. No redundancy.

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?

Adequately covers main operation but lacks details on error handling and omission of user_prompt. Output is described but no schema.

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?

Describes uid and target_size with examples, covering the two required params. However, user_prompt parameter is not mentioned in description despite being in schema.

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?

Clearly states download and import of Sketchfab model by UID with scaling. Distinguishes from sibling search and preview tools.

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

Usage Guidelines4/5

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

Provides prerequisites (downloadable, access rights) and examples for target_size, but doesn't explicitly mention alternatives or when not to use.

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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