arcgis_pro_clip_map_layersClip the current map's displayed layers, including basemap, to a polygon layer's outline without changing data; clear layer_name to cancel.
按多边形图层轮廓裁剪当前地图的图层显示（含底图），不改数据。layer_name 为空则取消裁剪。
| Name | Required | Description | Default |
|---|---|---|---|
| aprx_path | Yes | ||
| selection | No | ALL | |
| layer_name | No |
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
v2.0.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
注解已声明 readOnlyHint=false、destructiveHint=false、idempotentHint=true，说明这是非破坏性且幂等的操作；描述进一步补充了“不改数据”“含底图”以及“layer_name 为空则取消裁剪”等行为细节。这些是注解未覆盖的有价值上下文，但未说明裁剪状态是否持久化等其他行为。
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?
仅两句话，信息前置且无冗余，第一句说明核心动作和约束，第二句说明取消条件。表述紧凑，直接服务于工具调用。
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?
已有输出 schema，因此描述无需解释返回值；注解也提供了安全性和幂等性信息。但参数 schema 覆盖率为 0%，而描述只解释了 layer_name，未说明 selection 和 aprx_path 的用法，对完整调用而言仍有关键缺口。
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?
参数 schema 描述覆盖率为 0%，描述必须承担解释参数的责任。描述只说明了 layer_name 为空时的语义，未解释必需的 aprx_path，也未说明 selection 参数的作用及默认值 ALL，三个参数中仅覆盖了一个。
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?
明确说明了具体动作、对象和范围：按多边形图层轮廓裁剪当前地图的图层显示（含底图），且不改数据。与 arcgis_pro_gp_clip 等数据裁剪工具的差异也通过“不改数据”和“图层显示”被清晰区分。
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?
给出了 layer_name 为空时取消裁剪的条件，属于使用上下文，但未明确说明何时该用本工具而非 arcgis_pro_gp_clip 等替代工具。使用场景主要是隐含的，而非显式引导。
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.