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

With no annotations, the description carries the full burden and delivers real behavioral detail: login token or bound cloud-market instance credential required, 401 when unauthenticated, code=40003 with data.bindUrl when the instance has no bound user. It also discloses that partner identity is resolved server-side so partnerid must not be passed. Missing only pagination/ordering behavior.

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?

Front-loads the login requirement and the core action in the first clause, then auth details. Every sentence carries information, though the auth paragraph is somewhat long for the amount of content and could be tightened.

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?

No output schema exists, so the description should say more about what a call returns — shape of the order list, whether pagination metadata is included, total counts. Auth and filter-capability coverage are good, but the response side and pagination semantics are absent for a 3-parameter list 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?

Schema description coverage is 0%, so the description must compensate, and it partially does: filter supports $gte/$lte date ranges and $in/$or multi-value matching, and partnerid must be omitted. However page and limit are entirely unexplained — no defaults, bounds, or ordering semantics.

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?

States a specific verb+resource ("查订单") and names the backing collection (userOrders), plus an ontology mapping ("本体: order → Action: list"). It is clearly a list operation distinguished by name from the sibling order_detail, though the description never explicitly contrasts them.

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?

Usage is only implied by the single phrase "查订单"; there is no guidance on when to call this versus order_detail, or on typical search scenarios. The rest of the text is auth prerequisites, not selection advice.

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