shangou_set_address

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

No annotations provided, so the description must carry the burden. It states the tool selects an address to enable nearby store search, implying it modifies state. However, it doesn't disclose authentication requirements, side effects, or reversibility.

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 sentences effectively communicate purpose, parameter guidance, and post-action. No wasted words; front-loaded with the main goal.

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 selection tool with no output schema, the description covers purpose, parameter usage, and outcome. It lacks details on return value or error handling, but remains sufficient for the tool's simplicity.

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 coverage is 100%, and the description adds value by giving examples ('马家店春华园') and clarifying the relationship between keyword and index (index from shangou_list_addresses starting at 0), beyond what the schema provides.

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 clearly states '选择收货地址以确定配送范围' (select delivery address to determine delivery range), providing a specific verb and resource. It distinguishes itself from sibling tools like shangou_list_addresses (lists addresses) and shangou_search.

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 description explains parameter usage (keyword or index from shangou_list_addresses) and the follow-up action '选好后即可搜附近店' (after selection, can search nearby stores). It implies use after listing addresses, but does not explicitly exclude other scenarios.

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