Enhanced Web Scraper MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'enhanced interactions and mobile gestures,' which adds some context beyond basic testing, but fails to cover critical aspects like whether this is a read-only or destructive operation, performance implications, error handling, or output format. For a complex testing tool with multiple parameters, this is insufficient.

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?

The description is a single, efficient sentence that front-loads the core purpose without unnecessary details. It uses parentheses for clarification and avoids redundancy, making it appropriately sized for its informational value.

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's complexity (5 parameters, no output schema, no annotations), the description is incomplete. It lacks details on behavioral traits, output expectations, error conditions, and how it differs from siblings. Without annotations or output schema, the description should compensate more to guide effective use.

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?

The description adds no specific parameter semantics beyond what the input schema provides. Since schema description coverage is 100%, the baseline score is 3. The description does not elaborate on parameter usage, relationships, or examples, such as how 'actions' interact with 'device' emulation or 'waitForHydration' timing.

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 clearly states the tool's purpose: 'Test any React app (regular React or React Native web) with enhanced interactions and mobile gestures.' It specifies the verb ('test'), resource ('React app'), and scope ('regular React or React Native web'), though it doesn't explicitly differentiate from sibling tools like 'test_dropdown_with_error_capture' or 'inspect_react_app'.

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 provides minimal guidance on when to use this tool. It mentions 'enhanced interactions and mobile gestures,' which hints at its capabilities, but offers no explicit when-to-use or when-not-to-use advice compared to alternatives like 'scrape_page' or 'execute_in_react_context.' No prerequisites or exclusions are stated.

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