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Bright Data MCP

Bright Data MCP

Official
by brightdata

scraping_browser_scroll

Read-only

Scrolls to the bottom of the current page to reveal content that loads only after scrolling, helping AI assistants access complete web data.

Instructions

Scroll to the bottom of the current page

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv3.1.0

TDQS

B3.1/5.0
Behavior2/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, openWorldHint=true, so safety is covered, but the description adds nothing beyond the action itself. It doesn't say whether the scroll waits for lazy-loaded content, whether it pages in one jump or incrementally, or whether any state/result is returned. For a browser-automation tool, those are the traits an agent needs.

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?

One short, front-loaded sentence with no filler. Its brevity is appropriate, though it edges toward under-specification rather than crispness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is simple (no params, no output schema) and the annotations carry the risk profile, so the description is close to sufficient. Missing is any statement about post-scroll behavior or page state, which is the one thing an agent would need to chain it with snapshot/get_text calls.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool takes zero parameters and the schema is a closed empty object, so there is nothing for the description to disambiguate. Baseline 4 applies.

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?

States a specific verb and target ("scroll to the bottom of the current page"), which lets an agent tell it apart from scraping_browser_scroll_to_ref by inference. It stops short of naming that sibling, so the differentiation is implicit rather than stated.

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?

The description contains no when-to-use guidance, no prerequisites (e.g. a browser session/page must already be open), and never mentions the alternative scrolling sibling. The agent must infer that this is for reaching page-bottom content while scroll_to_ref targets a specific element.

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