Extension Status

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds a useful behavioral clarification beyond the annotations: it only reads status and does not perform a license checkout. It still omits any auth requirements or result format details, but the no-checkout statement is meaningful context.

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 a single front-loaded sentence with no wasted words, clearly separating the main action from the non-checkout constraint. It is appropriately sized for a simple read-only status tool.

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?

Given the tool has an output schema, the description need not explain return values. It covers the core purpose and the important no-checkout behavior, and annotations plus the output schema handle much of the rest. The main remaining gap is the optional extension_names parameter's default and filtering behavior, which is not fully described.

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 input schema has one optional extension_names parameter with no schema description, so the description carries the burden of parameter semantics. It provides example extension names (Spatial, 3D, Image Analyst, Network), which helps an agent understand possible values. However, it does not explain whether the parameter filters results, what happens when it is omitted, or the expected array/string format.

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 states a specific verb and resource: reading ArcGIS extension license status, with examples such as Spatial, 3D, Image Analyst, and Network. It also clarifies it does not perform checkout, which sharpens the action scope. However, it does not explicitly distinguish itself from sibling status tools such as portal_status or sdk_bridge_status.

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?

The description implies usage by stating it reads license status and does not check out licenses, giving a clear when-not signal for the checkout operation. But it does not tell the agent when to select this tool over alternatives, nor does it name any sibling tool or workflow context.

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