get_latest_campaigns

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

Annotations already provide readOnlyHint=true and idempotentHint=true indicating safe operation. Description adds behavioral detail that it queries activities effective on specified date or current date, and returns applicable stores. Provides useful context beyond annotations.

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?

Single, well-structured Chinese sentence. Front-loaded with summary phrase, no unnecessary words. Every part adds value.

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 read-only query tool with optional parameters and no output schema, description covers main aspects: what it retrieves, date handling, and store association. Lacks explicit mention of output format or limits, but adequate given tool 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 covers 100% of parameters with descriptions. Description enriches by explaining that date controls effective period ('当前有效或指定日期有效') and implying store_id filters applicable stores. Adds value beyond schema.

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?

Description clearly states it queries latest activities and new arrivals, specifying it can query current or date-specific items. Includes three distinct entities (activities, seasonal new arrivals, applicable stores). Distinct from sibling tools which focus on orders, products, stores, and inventory.

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?

Description implies usage for querying current or date-specific campaigns, but does not explicitly state when to use vs alternatives or provide exclusions. Sibling tools provide context but description lacks explicit guidance.

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