babelwrap_close_session

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

No annotations are provided, so the description carries the full burden. 'Clean up' implies side effects (e.g., releasing resources), but the description does not detail what cleanup entails, such as closing all pages or releasing handles. It is minimally transparent about the destructive nature but lacks specifics.

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, concise phrase with no wasted words. However, it could be slightly more informative without becoming verbose, e.g., specifying that it ends the session lifecycle.

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 tool with one parameter, the description is somewhat complete, but it does not address return values (output schema exists) or error behavior (e.g., invalid session ID). Given the complexity of the sibling tools, more context on when to close would help.

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 one parameter (session_id) with description 'The session ID to close.' The tool description adds no meaning beyond that. Schema coverage is 100%, so baseline is 3; no extra value is provided.

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 'Close and clean up a browser session' uses a specific verb (close) and resource (browser session). It clearly distinguishes from sibling tools like babelwrap_new_session (creates) and babelwrap_navigate (navigates).

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 no guidance on when to use this tool versus alternatives. It does not mention that it should be called after finishing work with a session, nor does it exclude usage scenarios or mention prerequisites. With 16 sibling tools, lifecycle context is missing.

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