Server Capabilities

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, openWorldHint=false, so behavior is largely covered. The description adds one useful behavioral claim, that write and path limitations are governed by service capabilities, but it does not explain what is returned or when capabilities can change. No contradiction with annotations.

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?

The description is short, but it is not front-loaded and the second clause is vague boilerplate about 'verifiable structured results' rather than actionable content. Brevity here reflects under-specification rather than efficiency.

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?

An output schema exists, so return values need not be described, but the description still fails to say what capability domain is covered, which keys matter, or why an agent should call this rather than environment_info or tool_info. In a 200-plus tool server, routing context is essential and this description provides none.

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?

The tool has zero parameters and schema description coverage is 100%, so the baseline for a no-parameter tool is 4. The description adds no parameter information, but none is needed.

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?

The description restates the title ('capabilities服务能力') rather than naming a specific operation. It does not explain what 'server capabilities' means for this ArcGIS Pro MCP server (tool availability, tool version, workspace limits?) or how it differs from siblings like arcgis_pro_environment_info or arcgis_pro_sdk_context. An agent cannot infer the concrete content from this text.

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?

There is no statement of when to invoke this tool versus alternatives. The phrase '写入和路径限制以服务能力为准' implies capability limits exist, but nothing tells the agent whether to call it first, before writes, or instead of environment_info.

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