获取股票/加密货币相关新闻

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

With no annotations provided, the description must fully disclose behavioral traits. It only mentions 'recent' (近期), hinting at a time scope, but fails to describe return format, error handling, language of news, or any side effects. This is a significant gap for a tool that fetches external data.

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 sentence that directly states the tool's function without any filler or redundancy. It earns its place by being concise and efficient, typical of a well-sized tool description.

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?

The tool is simple with only two parameters, but the absence of an output schema and annotations means the description should cover more ground. It lacks a clear distinction from stock_news_global and does not describe what the response looks like, making it minimally complete for a news-fetching 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 100% for both parameters, so the baseline is 3. The description repeats the symbol semantics already in the schema ('股票代码或加密货币符号') and adds no additional meaning for the limit parameter. It does not compensate beyond the schema's existing field descriptions.

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 uses the specific verb '获取' (get) and identifies the resource as '近期相关新闻' (recent related news) for a given stock code or cryptocurrency symbol. This clearly distinguishes it from sibling tools like stock_prices, stock_info, and stock_news_global, making the tool's purpose unambiguous.

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 implies usage for fetching news about a specific symbol but does not explicitly state when to use this tool versus alternatives such as stock_news_global or search. There is no mention of exclusions or preferred contexts, leaving the when-to-use guidance implicit at best.

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