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nayakprashant

Selenium MCP Server

maximize_browser

Maximize the browser window to full screen, enhancing visibility for automated tests and screenshot capture.

Instructions

Maximize the browser window.

Parameters

session_id : str Active browser session identifier.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYes
Behavior2/5

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

With no annotations, the description must disclose behavioral traits, but it only states the action without any details on side effects, error conditions, or whether the window is already maximized.

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) and well-structured, though it could be more informative without losing brevity.

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 complexity of browser interactions and the existence of sibling tools, the description is insufficient. It does not mention prerequisites (e.g., browser must be open) or return behavior.

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?

Schema description coverage is 0%, but the description adds no extra meaning beyond the parameter name and type already in the schema. No format, constraints, or examples are provided.

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 ('Maximize the browser window') with a specific verb and resource. However, it does not differentiate from the sibling tool 'fullscreen_browser', which might have a similar purpose.

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

Usage Guidelines1/5

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 like 'fullscreen_browser', or on prerequisites such as having an active browser session.

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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