click_element

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

Annotations only declare destructiveHint=false, which is obvious for a click. The description adds transparency by noting it does not require window focus/foreground—a non-obvious behavioral detail that helps the agent understand side effects and constraints.

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 short, front-loaded sentences with no wasted words. Every sentence adds unique value: the first defines the action, the second clarifies a key behavioral trait.

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?

Given the tool has a single parameter, no output schema, and simple semantics, the description is adequate. It explains the unique behavior (no focus requirement) that an agent might not infer. Could optionally mention what happens if the element is not found or not clickable, but that is a minor gap.

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 the single parameter elementId already described in the schema. The description adds no additional semantics about the parameter (e.g., how to obtain it, format constraints), so baseline 3 is appropriate.

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 ('Click') and resource ('UI element by its element ID'). It clearly states what the tool does and distinguishes it from siblings like 'advanced_click', 'invoke_element', or simply 'click' (which may behave differently).

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 implicitly suggests when to use (when you have an element ID and want to click without focusing the window), but does not explicitly state when not to use or offer alternatives among the many sibling tools (e.g., 'advanced_click' for double-click, 'invoke_element' for non-click actions).

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