etsy_close_browser

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

With no annotations, the description carries the full burden of behavioral disclosure. It states the main action (closing the browser) and the resource cleanup, which conveys the session-ending nature. However, it does not mention whether this discards unsaved state, logs the user out, or is safe/idempotent. For a destructive lifecycle tool, a bit more detail would improve transparency.

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 fluff. Every word contributes meaning, and the structure is ideal for quick parsing by an agent.

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 tool this simple—no parameters, no output schema, and a straightforward lifecycle action—the description is complete enough. Nothing critical is missing for an agent to invoke it correctly.

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 the schema coverage is trivially 100% and there is nothing to document. Baseline for no parameters is 4; the description need not add parameter details.

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 uses a specific verb ('Close') and names the exact resource ('browser instance'), clearly distinguishing this tool from the Etsy-focused sibling tools. The addition of 'clean up resources' reinforces its lifecycle-management role. There is no ambiguity about what the tool does.

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 intended usage is implied by the name and description: call it to end a browser session after other Etsy operations. However, there is no explicit guidance on when to use it versus alternatives or any mention of prerequisites (e.g., 'after all tasks are complete'). The context makes the purpose obvious, but the description does not spell it out.

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