找店

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

With no annotations, the description bears full burden. It clearly describes the tool's behavior: queries by name/mall/city, returns storeId and status, and optionally business hours. No side effects are mentioned but none are implied.

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?

Two concise sentences with no wasted words. First sentence covers functionality and return values; second sentence provides critical contextual guidance ('first step of ordering').

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 simplicity (one parameter, no output schema, no annotations), the description is adequately complete. It covers the input, output, and usage context. Could be slightly more specific about multiple matches, but the '唯一命中' condition implies this.

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 has 100% description coverage for the query parameter. The description adds value by providing concrete examples ('深圳湾', '太古里', '北京') and clarifying that the query can be a store name, mall, or city.

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?

Clearly states the tool finds stores by name, mall, or city, and returns storeId and status, with business hours on unique match. Distinct from siblings (get_menu, get_item_detail, preview_order) which serve later ordering steps.

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?

Explicitly says '点单第一步先找店' (first step of ordering is to find the store), establishing the tool as the entry point. Could more explicitly state when not to use, but the context and sibling list make the guidance clear.

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