Fetch a paginated list of followers' OpenIDs from a WeChat Official Account. Pass the next_openid cursor from a previous response to retrieve the following page.
分页获取关注者 OpenID。
| Name | Required | Description | Default |
|---|---|---|---|
| next_openid | No |
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
v0.1.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
注解已经覆盖了只读、幂等、非破坏等安全特征，描述额外补充了分页行为，这是有价值的信息。但它没有说明游标的语义、分页大小、排序方式或响应结构；不过输出 schema 已经存在，可以承担一部分说明义务。没有与注解矛盾。
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?
描述只有一句话，动作和资源对象前置，没有多余内容，结构高效。虽然信息量偏少，但作为简洁性评估，它没有浪费任何字符。
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?
对于首次无参数调用，描述加上注解和输出 schema 基本够用；但对于完整的分页迭代调用，缺少 next_openid 游标语义和与兄弟工具的选用规则。整体处于最低可用的水平，但还有明确缺口。
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 对参数的描述覆盖率为 0%，描述必须补偿这一缺口，但描述完全没有解释 next_openid 的含义。虽然“分页”暗示该参数与分页有关，但 agent 无法确定它到底是游标、起始位置还是上一页最后一个 OpenID，这对后续翻页调用存在实际风险。
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?
描述明确说明操作为分页获取关注者 OpenID，动词和资源对象清晰。它与其他兄弟工具如 get_user_info（单个用户信息）、batch_get_user_info（批量用户信息）、get_user_ids_by_tag（按标签获取用户 ID）能够明显区分，不会产生歧义。
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?
从描述中可以推断该工具用于分页列出所有关注者的 OpenID，属于隐含用法。但没有明确说明何时使用它而非 get_user_ids_by_tag 或 batch_get_user_info，也没有给出任何排除条件或备选工具指引。
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.