click

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

No annotations are present, so the description carries the full burden. It only states 'Click the first element... on the monitored tab,' omitting important behavioral details such as whether it waits for the element to be interactable, scrolls into view, triggers events, or handles failures (e.g., element not found).

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?

Two concise sentences: one for the action, one for the requirement. No unnecessary words or repetition, making it easy to parse quickly.

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 one-parameter tool, the description is adequate but lacks edge-case context (e.g., behavior when selector matches multiple elements, timeout, or error handling). Without annotations or output schema, more completeness could benefit the agent.

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?

Schema coverage is 100% with a clear description ('CSS selector to click'). The tool description adds no further meaning beyond what the schema already provides, meeting the baseline for high coverage.

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 clicks the first element matching a CSS selector on the monitored tab. The verb 'click' and resource 'element matching CSS selector' are specific and distinguish it from sibling tools like query_dom (query) or fill (form input).

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?

Only a capability requirement ('Requires the interact capability') is provided. No guidance on when to use this tool versus alternatives (e.g., when a simple click is needed vs. form fills or navigation), nor any conditions that might make it unsuitable.

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