boss_ai_cover_letter

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

没有 annotations，描述需要承担行为披露职责；'仅草稿，不发送'清楚排除了发送副作用，这是关键行为信息。但描述未补充参数组合要求（job_id 与 jd_text 二选一）或返回内容形态，行为透明性只达到基本合格。

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?

一句话承载了用途、输入、输出边界三个关键信息，信息密度高且核心动作前置。唯一瑕疵是可用性片段中'可用性:'重复，略微影响整洁度。

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?

对草稿生成类工具，描述配合完整 schema 已覆盖用途、可用角色/平台和关键副作用。虽然没有 output schema，但'草稿'已足够表达返回的是文本内容，整体对智能体选择与调用足够完整。

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 schema 对 5 个参数的描述覆盖率为 100%，枚举值和互斥关系已在 schema 中说明。描述本身没有增加超越 schema 的参数语义，因此按 100% 覆盖率的基线给 3 分。

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?

动词'起草'与资源'求职信/自我介绍草稿'明确，且限定输入为'本地简历与目标岗位'并强调'仅草稿，不发送'。仅凭描述即可与发送类工具（boss_apply/boss_greet）和简历优化类工具（boss_ai_resume_optimize）区分。

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?

描述给出明确使用边界：角色限 candidate、平台限 zhilian/zhipin、recruiter_platforms=-，并说明只产出草稿不发送。但未点名具体替代工具或何时改用其他 boss_ai_* 工具，尚非完全显式的路由指引。

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