get_sketchfab_model_preview

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

No annotations present, so description carries full burden. Discloses return type (Image) and purpose, but lacks details on error behavior, rate limits, or any side effects. Adequate but not comprehensive.

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?

Description is concise (three sentences plus parameter list) and front-loaded with purpose. The parameter list adds context for uid but is somewhat redundant with schema. No wasted words.

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?

Given only two parameters, no output schema, and no annotations, the description covers core purpose and usage guidelines but falls short on parameter semantics for 'user_prompt' and return format details beyond 'Image'. Adequate but incomplete.

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?

Schema description coverage is 0%, and description only clarifies the 'uid' parameter (obtained from search_sketchfab_models) while completely ignoring the 'user_prompt' parameter. This is a significant gap.

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?

Explicitly states the verb 'Get' and the resource 'preview thumbnail of a Sketchfab model by its UID', clearly distinguishing it from sibling tools like search_sketchfab_models and download_sketchfab_model.

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?

Provides clear context: 'Use this to visually confirm a model before downloading.' Indicates relationship with search_sketchfab_models for obtaining the UID, effectively guiding when and 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.