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

The readOnlyHint annotation already establishes the safety profile, but the description still contributes the login precondition and the fact that results span every status, including pending-claim, published, and delisted, and include all links. That is meaningful extra context, but nothing is said about result volume, pagination, or ordering, which matters when it returns 'all' products.

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?

It is extremely compact and front-loads the login precondition and the core scope. The semicolon-delimited fragment style is dense and the status list is tacked onto the end, but no sentence is wasted.

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 parameterless read tool with no output schema, the description covers scope, the statuses returned, and the downstream reason to call it. It leaves out how large the result can get and whether ordering is defined, gaps that matter for an 'all products' listing.

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?

With zero input parameters there is nothing for the description to disambiguate, so the baseline applies. The mention of productId is really about output consumed by the update flow rather than an input, which does not create confusion but also does not add schema meaning.

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 gives a specific verb and resource: list the caller's own products across all statuses plus all links. The possessive scope ('本人') distinguishes it from the many other product tools (list_products, list_products_discover, search_products), though no sibling is named explicitly.

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 implies one concrete use case, retrieving productId before an update, which is genuinely useful routing guidance toward update_my_product. However, it never states when not to use it or names alternatives, so the agent must infer the boundary against search_products and list_products on its own.

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