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msawayda

unified-browser-mcp

by msawayda

click_element

Find and click a web element using a CSS selector. Optionally wait for page navigation after clicking.

Instructions

Click an element

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
selectorYesCSS selector for the element
waitForNavigationNoWait for navigation after click
Behavior2/5

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

No annotations provided, and the description does not disclose behavioral traits such as whether the click triggers navigation, waits for elements, or has side effects. The waitForNavigation parameter in the schema hints at navigation behavior, but the description does not mention it.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is very short and to the point, but sacrifices useful context for brevity. It is front-loaded but not sufficiently informative for an agent.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given sibling tools and no output schema, the description is too minimal. It does not explain how this tool relates to other browser interaction tools, nor does it cover return values or side effects.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds no meaning beyond the schema; it simply states 'Click an element' without elaborating on parameters.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Click an element' is clear and specific about the action, but does not distinguish from sibling tools like submit_form which also involves clicking. The verb-resource pairing is direct.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like submit_form or fill_form_field. The description lacks any usage context or prerequisites.

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

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