批量生成图片

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

描述补充了注释未覆盖的关键行为：按顺序执行、默认遇错停止、可配置继续处理并返回成功/失败/跳过统计。这些信息对调用方非常重要，且与 openWorldHint=true 等注释一致，无矛盾。

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?

描述为单句话，信息密度高且无冗余，先说明核心动作，再补充错误处理与返回统计。虽然紧凑，但结构不算条理化，较长的单句可能稍显拥塞。

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?

输出 schema 已提供返回统计的结构，注释也标记了副作用特性，描述则提供了调用策略（顺序、错误处理）。但 schema 覆盖率 0% 时，描述未能点明 items 参数的基础要求（如每项需 prompt 和 size），调用 agent 仍需完全依赖 schema。

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 描述覆盖率为 0%，描述需要补偿参数含义，但仅间接提到了 continueOnError（'可选择继续处理'），未解释 items 数组的结构、prompt 和 size 要求，也未提及 concurrency 固定为 1。描述几乎没有为参数提供超出 schema 的额外含义。

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?

描述使用明确动词'批量调用 Agnes 生成图片'，指明资源与动作，并强调'批量'，与兄弟工具 generate_image 形成清晰区分。读者无需查看其他工具即可理解这是批量生成图片的工具。

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?

描述通过'批量'一词隐含适用于一次生成多张图片的场景，但未明确说明何时应改用 generate_image 或与其他兄弟工具的关系。没有给出 when-not-to-use 或替代工具的指引。

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