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PPiai

youtube-mcp

by PPiai

get_playlist_videos

Retrieve videos from a YouTube playlist by providing the playlist ID and optional maximum results.

Instructions

Get videos from a YouTube playlist

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
playlist_idYesYouTube playlist ID
max_resultsNoMaximum number of results (1-50)
Behavior2/5

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

With no annotations provided, the description must fully disclose behavioral traits. It fails to mention pagination, return format, ordering, or any side effects. The brief description does not add value beyond naming the operation.

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 a single concise sentence that gets straight to the point. It is front-loaded and efficient, though it could be slightly 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 simplicity of the tool (2 params, no output schema), the description is incomplete. It does not explain what is returned (e.g., video details or just IDs) or the impact of the max_results parameter beyond what the schema states.

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?

The input schema has 100% coverage with basic descriptions for both parameters (playlist_id and max_results). The tool description adds no additional meaning over the schema, achieving baseline adequacy.

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 'Get videos from a YouTube playlist' clearly states the action (get), resource (videos), and source (YouTube playlist). It is specific enough to differentiate from sibling tools like get_channel_videos or search_videos, though it does not explicitly mention the uniqueness.

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 provides no guidance on when to use this tool versus alternatives, such as when a specific playlist ID is known vs searching for playlists. No prerequisites or exclusions are mentioned.

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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