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

The description discloses meaningful behavioral nuance: provided front/back assets replace singleton roles, side/detail assets are added, and omitted assets are preserved. This complements the destructiveHint=true annotation by clarifying exactly what gets modified and what remains untouched, although it does not discuss reversibility or other side effects.

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 concise—three sentences—and front-loaded with the core purpose before diving into asset semantics. Every sentence earns its place, and no redundant or filler content is present.

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 tool's large parameter surface and array-based asset input, the description plus the comprehensive schema covers the essential call semantics well. It stops short of explicitly explaining the image_file_1..image_file_20 wiring and the deprecation of asset_role, but those details are documented in the schema, so an agent can still invoke the tool correctly.

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 100%, so the schema already documents all parameter meanings thoroughly, including the assets patch rules. The description reinforces the front/back replace vs side/detail add concept, but it adds little new parameter-level meaning beyond what the schema already states.

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 opens with a specific verb and resource—'update a garment's metadata or patch its product photos'—which clearly defines the operation. It distinguishes the tool from siblings like upload_garment_from_chat_file, upload_garment_from_public_url, and get_garment by framing it as an update/patch operation on an existing garment.

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?

It states clear context for use: updating an existing garment's metadata or photos, and it directs image changes through assets[]. It does not explicitly name alternatives or list when-not-to-use cases, but the 'update' versus 'upload' framing strongly implies the appropriate use case.

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