get-9to5mac-news

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

No annotations are provided, so the description carries full burden. It states the tool fetches news but doesn't disclose behavioral traits such as rate limits, authentication needs, data freshness, pagination, or output format. It mentions the content is in English ('英文资讯'), which is useful context, but overall lacks critical operational details for a news-fetching tool.

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?

The description is a single, efficient sentence in Chinese that front-loads the core purpose ('获取 9to5Mac 苹果相关新闻') and lists specific content categories. Every part adds value without redundancy, making it appropriately sized and well-structured for a no-parameter tool.

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 low complexity (0 parameters, no output schema, no annotations), the description is moderately complete. It clearly states what news is fetched and the language, but lacks details on behavior, output format, and usage context. For a simple news retrieval tool, this is adequate but has gaps in operational transparency.

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?

The tool has 0 parameters, and schema description coverage is 100% (since there are no parameters to describe). The description doesn't need to add parameter semantics, so it meets the baseline of 4 for zero-parameter tools. It appropriately focuses on the tool's function without unnecessary parameter details.

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 the tool's purpose: '获取 9to5Mac 苹果相关新闻' (get 9to5Mac Apple-related news) with specific content categories like product releases, iOS updates, Mac hardware, app recommendations, and company news. It distinguishes from siblings by specifying the source (9to5Mac) and topic (Apple), but doesn't explicitly contrast with other news tools beyond the name.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention when to choose 9to5Mac over other news sources like BBC, NYTimes, or TheVerge, or any prerequisites or exclusions. Usage is implied by the topic but not explicitly stated.

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