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drag_and_drop

Drag a source element to a target element using CSS selectors. Automates drag-and-drop interactions in browser automation tests.

Instructions

Drag one element and drop it onto another.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
source_selectorYes
target_selectorYes
byNocss
Behavior2/5

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

No annotations are provided, and the description does not disclose behavioral traits such as whether it simulates mouse events, requires viewport visibility, or handles asynchronous behavior. The description is too minimal to inform the agent of important details.

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?

The description is very concise (one sentence) but lacks necessary details. It is front-loaded but too terse for a tool with no other documentation. Efficiency is high but at the cost of completeness.

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 the lack of annotations, output schema, and parameter descriptions, the description is incomplete. It does not explain expected behavior, error states, or how it fits among many sibling browser automation tools.

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

Parameters2/5

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

With 0% schema description coverage, the description adds no explanation for the parameters. 'source_selector' and 'target_selector' are not clarified, and the 'by' default is not explained. The description adds minimal meaning beyond the schema field names.

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

Purpose5/5

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

The description 'Drag one element and drop it onto another' clearly states the action (drag and drop) and the resource (one element onto another). It distinguishes itself from sibling tools like click, hover, double_click, etc.

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 is provided on when to use this tool versus alternatives. It does not mention prerequisites (e.g., element must be draggable), context (e.g., within the same page or across frames), or when not to use it.

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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