Close browser page

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

Annotations already mark destructiveHint:true and readOnlyHint:false, so the description only adds the context that there is no global session/page. This is helpful but does not disclose other behavioral details like side effects on the session if it's the last page. With annotations provided, this is adequate.

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 sentence, front-loaded with the action and purpose, and adds no unnecessary details.

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 simple close operation with annotations covering destructive behavior and an output schema present, the description provides the essential context about why both IDs are needed. It is concise and adequate, though it could note potential side effects if the last page is closed.

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 schema has 0% coverage, so the description must compensate. It explains that both IDs are needed to unambiguously address a page, but does not individually describe what each ID refers to. It adds some context but leaves the distinction between sessionId and pageId implied

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 clearly states the tool's action: 'Close one explicitly addressed page in its owning session.' It specifies the resource (page) and context (session), and distinguishes from siblings like browser_session_close and browser_page_create.

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 that both IDs are required because 'BrowserMesh has no global current session or page,' but it does not explicitly state when to use this tool over alternatives, nor provide exclusion criteria. It lacks explicit usage guidance.

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