click

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

Annotations provide destructiveHint=true but the description adds no behavioral context beyond the bare verb. It does not disclose possible side effects such as navigation, form submission, or state changes, nor any confirmation behavior. The description neither contradicts nor meaningfully supplements the annotation; with a destructive hint present, some elaboration would add value.

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 is maximally concise for what it conveys, though the brevity comes at the cost of missing valuable context.

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 one-parameter, no-output-schema tool, the description is minimally adequate - an agent can infer the basic action. However, given destructiveHint=true and an unexplained uid provenance, an agent acting on this description alone could click the wrong element or trigger an unintended side effect without warning.

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 description coverage is 0% and the schema only defines uid as a plain string. The description adds minimal meaning by tying uid to 'the element identified by,' but it does not explain what a uid is, where it originates (e.g., from an observe call), or how to obtain a valid one - information an agent needs since the schema provides no detail.

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 ('Click') and resource ('the element identified by uid'), which is clear and unambiguous. The verb itself distinguishes it from sibling interaction tools like type, hover, scroll, select, and press, even without explicit differentiation wording.

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?

There is no guidance on when to use this tool versus alternatives such as press, hover, or select, nor any exclusions or prerequisites. The implied usage is only that clicking is needed for an element, but no context is provided about when clicking is appropriate versus other interactions.

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