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u2n4

video-url-analyzer-mcp

by u2n4

get_video_clip

Extract a local video clip up to 30 seconds from a video URL, returning metadata. Specify start and end times to get the exact segment.

Instructions

Extract a local video clip under 30 seconds and return metadata.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
endYes
startYes
reasonNo
force_refreshNo
output_formatNomp4
video_id_or_urlYes
max_duration_secondsNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states extraction and metadata return, omitting side effects, authorization needs, error conditions, or whether the operation is read-only. Minimal transparency beyond basic purpose.

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 a single sentence, making it concise. However, it sacrifices essential detail for brevity. It is not optimally front-loaded with critical information like parameter format or usage 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 the tool has 7 parameters (3 required) and no schema descriptions, the description is incomplete. It does not describe the output metadata, the required input formats, or how the tool differs from many sibling tools. The output schema exists but the description adds no contextual detail.

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

Parameters1/5

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

Schema description coverage is 0%, yet the description fails to explain key parameters like start, end, output_format, or force_refresh. Only implicit reference to 'under 30 seconds' hints at max_duration_seconds. No parameter meaning is clarified for the agent.

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 uses a specific verb 'Extract' and identifies the resource 'local video clip', distinguishing it from sibling tools like get_video_frame or analyze_video. However, the term 'local' may be misleading as the input parameter accepts URLs, causing slight ambiguity.

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 does not provide any guidance on when to use this tool versus alternatives such as get_video_frame or analyze_video. It lacks explicit when/when-not context or differentiation from siblings.

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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