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

The description adds some behavioral context beyond annotations by noting the tool works from a 2D image, requires no 3D modeling, and produces realistic lighting and physically accurate motion. It does not disclose task lifecycle, potential long-running execution, or limitations, but the annotations already cover the basic safety profile.

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?

The description is only three sentences and reasonably brief, but the first two sentences are redundant marketing that echo the title. The third sentence contains the most useful information, though typos like 'vitual' and promotional phrases reduce overall clarity and professionalism.

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?

This is a complex tool with a large, multi-variant request schema and async polling behavior, but the description provides almost no operational context—it does not explain how to assemble source/reference inputs, when to use masks, or how to handle polling. The output schema mitigates return-value concerns, but the selection and invocation context remains thin.

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?

The description does not explain or clarify any parameters; it only hints at 2D source images and earring SKUs. The schema itself contains detailed parameter descriptions, but given the complex multi-variant request structure and only ~50% schema coverage, the description should have added more guidance—such as choosing between URLs and file IDs—but does not.

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?

The description clearly states the tool performs earring virtual try-on and mentions piercing simulation, which distinguishes it from sibling tools by product type. However, it is phrased as marketing copy and does not precisely describe the underlying operation of compositing a product image onto a source photo.

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?

The description implies this tool is for earring-specific try-on tasks and the sibling names make the product category obvious, but it gives no explicit guidance on when to choose this tool over alternatives, nor does it mention prerequisites such as needing a source photo and earring product images.

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