Close all folder windows

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

No annotations are provided, so the description carries the behavioral disclosure burden. It clearly states that the action affects every currently open File Explorer folder window, which tells the agent the operation is a bulk close with a defined scope. It does not mention confirmation or undo behavior, but for this simple, non-destructive-in-data operation that is a minor gap.

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. It states the action, target, and scope immediately, making it easy for an agent to parse and act on.

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?

For a zero-parameter tool with no output schema and simple behavior, the description is complete. An agent knows exactly what the tool does and what will be affected, and there are no inputs or return values that need additional context.

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, so there is no parameter semantics to explain. With 100% schema coverage and an empty properties object, the description does not need to add parameter-level detail. The baseline of 4 applies.

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 ('Close') and a precise resource ('every currently open File Explorer folder window'), clearly distinguishing this batch operation from the sibling close_folder_window, which targets a single window. The 'every currently open' qualifier makes the tool's scope unambiguous.

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 provides clear context: use this tool when all open File Explorer folder windows should be closed. It does not explicitly name the alternative close_folder_window for closing a single window, but the contrast is strongly implied by the wording and sibling tool names.

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