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babelcloud
by babelcloud

browser_verify_element_visible

Confirm an element is visible by providing its ARIA role and accessible name.

Instructions

Verify an element is visible on the page

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
roleYesARIA role of the element (e.g., 'button', 'heading')
accessibleNameYesAccessible name of the element
Behavior2/5

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

No annotations provided. Description does not disclose behavioral traits like whether the tool waits for visibility, returns a boolean, or throws an error if not visible. For a verification tool, this is a significant gap.

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

Conciseness4/5

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

Single sentence, no wasted words. Could be improved by front-loading key behavioral info, but it is concise and to the point.

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?

No output schema, no annotations, and minimal description. Given the tool's verification nature (likely returns boolean or throws), the description does not specify return value or error conditions, making it incomplete for an agent to invoke correctly.

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 coverage is 100% with descriptions for 'role' and 'accessibleName'. The description adds no extra meaning beyond the schema, so baseline 3 is appropriate.

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 'Verify an element is visible on the page' clearly states the action (verify) and resource (element visibility). It distinguishes from siblings like 'browser_verify_text_visible' and 'browser_verify_value' by focusing on element visibility, but it does not elaborate on what 'visible' means (e.g., scrolled into view, not hidden).

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 'browser_verify_text_visible' or when not to use it. Lacks context such as prerequisites (element must exist) or relationship to other tools.

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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