read_articles_batch

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

由于无注释，描述承担全部行为披露责任。详细说明了自动间隔5秒的速率限制、最多5篇、超时默认30秒、单篇失败不影响其他、预计耗时等，透明性极高。

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?

描述结构清晰：一行摘要、典型流程、参数说明、返回格式、示例、注意事项。每句话都有价值，无冗余，信息密度高。

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?

对于这个相对简单的工具，描述覆盖了输入、行为、限制、错误处理、耗时估计，并配合输出模式无需额外说明，完成度很高。

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?

输入模式中参数无描述（coverage 0%），描述明确解释了urls（必需，列表）和timeout（默认30），并给出示例和限制，完全补偿了模式缺失。

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?

描述明确说明工具用于批量读取多篇文章内容，最多5篇，间隔5秒。与兄弟工具read_article（单篇）形成鲜明对比，使用流程中强调了先search_news再批量读取，目的清晰。

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?

描述了典型使用流程（搜索-批量-分析），暗示了何时使用该工具。但未明确说明在单篇文章场景下应使用read_article，也未列举排除情况，指南性略有不足。

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