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garylab

pexels-mcp-server

by garylab

videos_popular

Retrieve a list of popular videos from Pexels, with optional filters for minimum width, height, duration, and results per page.

Instructions

List popular videos

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
per_pageNoResults per page (string, 1-80)15
pageNoPage number (string, minimum 1)1
min_widthNoMinimum video width (string, positive integer)
min_heightNoMinimum video height (string, positive integer)
min_durationNoMinimum duration in seconds (string, positive integer)
max_durationNoMaximum duration in seconds (string, positive integer)
Behavior1/5

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

No annotations are provided, so the description must fully disclose behavioral traits. It only states 'List popular videos' without mentioning pagination, ordering, scope, or what constitutes 'popular'. This is a significant omission for a listing endpoint.

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 brief (4 words) and front-loaded, but it is too sparse. While concise, it fails to provide necessary detail, making it under-specified rather than efficiently informative.

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 6 optional parameters and no output schema, the description should clarify return type, pagination behavior, and the definition of 'popular'. It lacks this context, leaving the agent with incomplete information to use the tool effectively.

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 coverage is 100%, so baseline is 3. The description adds no additional context about parameters; it does not explain how parameters affect results or any special behavior (e.g., filtering by width/height). Thus, it meets the baseline but does not exceed.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description provides a verb and resource ('List popular videos'), but lacks specificity on what 'popular' means and how it differs from sibling tools like videos_search. It is clear enough for a basic understanding but insufficient for precise tool selection.

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 on when to use this tool versus alternatives such as videos_search or photo_get. The description does not mention context, prerequisites, or exclusions, leaving the agent without decision support.

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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