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

The description adds context about AR simulation and high-fidelity visualization, but it does not disclose operational traits such as asynchronous execution, polling behavior, or the nature of the output (e.g., a generated image). Annotations already mark the tool as not read-only and not destructive, and the description does not contradict them. It also includes a behavioral requirement for gender, which is useful context beyond the schema.

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 padded with marketing language like 'Enhance your fashion experience' and 'high-fidelity AR simulation,' repeating the concept of virtual try-on multiple times. The useful instruction about gender is appended awkwardly after a space, forming 'anywhere.gender' typo. It could be trimmed to one or two sentences focusing on purpose and the gender requirement.

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 the complex input schema with four anyOf variants, a polling parameter, and an output schema, the description is far too high-level. It omits guidance on choosing between URL and ID inputs, the asynchronous nature of the task, and the expected result. The gender requirement is the only operational detail provided, which is insufficient for an agent to confidently invoke this tool.

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 explicitly stresses that gender must be provided and instructs the agent to ask if missing, adding semantic weight to that parameter beyond the schema's required flag. However, it does not clarify the meaning of src_file_url vs ref_file_url or the file ID variants, and with only 50% schema description coverage, it does not fully compensate. The mention of 'styles and colors' loosely aligns with the style parameter but adds little detail.

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 identifies the tool as a virtual scarf try-on service, using active language like 'drape scarves over their outfits' and 'see how patterns flow in real life.' This distinguishes it from sibling tools for other accessories/clothing. The resource (scarf) and action (virtual try-on) are both explicit, earning a 5.

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 usage for shoppers interested in virtually trying on scarves, but it does not explicitly contrast with sibling try-on tools or state when not to use it. It does provide a clear operational guideline that 'gender must be explicitly provided' and instructs the agent to ask for clarification if missing, which is helpful. However, this is not about tool selection, so the overall guidance is only implied rather than explicit.

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