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

Annotations already cover read-only, idempotent, non-destructive, closed-world behavior. The description adds that the catalog is live and searchable by two facets, but it does not mention result limits, pagination, empty-query behavior, or failure modes; with annotations present, this is adequate but thin.

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?

A single front-loaded sentence with no wasted words, and the search action is immediately clear.

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?

For a simple two-parameter discovery tool with annotations covering safety, the core operation is stated. However, with no output schema, the description does not explain what the search returns or how results chain into model-detail tools, leaving a meaningful gap.

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%, so the description must carry parameter meaning. It maps the two search facets to capability/name at a high level, but it does not clarify that kind accepts image/video/audio or explain query matching semantics, so it only partially compensates.

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 states a specific verb and resource: search the live Canvas model catalog, filtered by capability or name. It is clearly a discovery/search tool rather than a model-detail tool, though it does not explicitly name or contrast with siblings such as aimixer_canvas_describe_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?

The phrase 'by capability or name' implies when the tool is useful for finding models, but it gives no explicit when-to-use/when-not-to-use guidance. It also does not route the agent to alternatives like aimixer_canvas_describe_model or aimixer_catalog.

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