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firyomaefx

Chrome MCP Control Center

by firyomaefx

browser_wait_for

Wait for a specific element to appear on a web page, with a configurable timeout to handle dynamic content loading.

Instructions

Wait for a selector or timeout

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tabIdNo
selectorNo
timeoutMsNo
Behavior2/5

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

The description does not disclose behavior such as whether it throws on timeout, side effects on UI, or return value. No annotations exist to compensate.

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 concise with no extraneous text, but could be slightly improved by front-loading key constraints.

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 no output schema and basic three-parameter schema, the description should explain behavior and return values, which it entirely omits.

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%, and the tool description does not explain the meaning or format of parameters (e.g., selector type, timeout units).

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 that it waits for a selector or timeout, differentiating it from sibling tools like click/type.

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 vs alternatives, nor any contextual hints about prerequisites.

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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