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babelwrap

io.github.soulfir/babelwrap-mcp

by babelwrap

babelwrap_hover

Hover over a webpage element by describing it in natural language or using a saved element ID for direct targeting.

Instructions

Hover over an element on the page.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYesThe active session ID.
targetYesNatural language description of the element to hover over. TIP: Pass an element ID from a previous snapshot to bypass LLM resolution entirely for instant, deterministic targeting.
compactNoIf True, return a compact snapshot with minimal whitespace.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states the action but does not mention whether it triggers events, returns a snapshot, or changes the page state. The output schema exists but is not referenced.

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 a single sentence with minimal words. While concise, it could be expanded to include key details without becoming verbose. It is appropriately sized but lacks structure for important contextual information.

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 tool has 3 parameters, an output schema, and many sibling tools, the description is insufficient. It does not explain the return value (if any), preconditions, or how it fits into the babelwrap workflow. It feels incomplete.

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 description adds no additional meaning beyond the schema. The baseline is 3, and the description does not enhance parameter understanding further.

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 clearly states the action 'hover over an element', but it does not distinguish from sibling tools like babelwrap_click that also target elements. The purpose is clear but lacks differentiation.

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 explicit guidance on when to use this tool versus alternatives. The schema includes a tip about using element IDs, but the description does not provide usage context or exclude cases. The agent has no basis to decide between hover and click.

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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