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batch_screenshot_urls

Capture screenshots of multiple URLs and display them in a grid for visual comparison.

Instructions

Take screenshots of multiple URLs and display them in a grid

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlsYesArray of URLs to capture screenshots of
pathsNoOptional array of paths to label the screenshots with
fullPageNoWhether to capture full page or just viewport. Default: false
waitTimeNoTime to wait in milliseconds before taking each screenshot. Default: 5000 (configurable via VUDA_STABILITY_WAIT)
gridSizeNoSize of grid (2 for 2x2, 4 for 4x4). Default: 2
Behavior2/5

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

No annotations are provided, so the description carries full burden. It does not disclose important behaviors: error handling for failed URLs, concurrency, JavaScript requirements, or rate limits. The description is minimal and lacks behavioral context.

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

Conciseness5/5

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

The description is a single sentence, front-loaded with the core purpose. No wasted words; every sentence earns its place.

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?

Despite 5 parameters and no output schema, the description does not explain return format, error handling, or prerequisites. It lacks completeness for a tool of this complexity, especially given no annotations to supplement.

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 schema already documents all parameters. The description adds no additional meaning to parameters; it does not explain how parameters like 'gridSize' or 'waitTime' affect behavior beyond the schema.

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 clearly states the action ('take screenshots'), the resource ('multiple URLs'), and the output format ('display them in a grid'). It distinguishes from sibling tools like 'screenshot_url' (single URL) and 'screenshot_local_files' (local files).

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

Usage Guidelines3/5

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

The description implies when to use (multiple URLs in a grid) but lacks explicit guidance on when not to use or alternatives. No mention of 'screenshot_url' for single URLs or 'visual_comparison' for comparisons.

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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