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vapagentmedia

VAP Media · Unified MCP Server for AI Agents (Flux · Veo · Suno)

video_merge

Combine multiple video clips into one continuous video by providing the URLs in the desired playback order.

Instructions

Merge multiple video clips into one continuous video. Cost: $0.05. Requires Tier 1+.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
media_urlsYesURLs of videos to merge (in playback order)
Behavior3/5

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

With no annotations, the description carries full burden. It discloses the merge operation and cost/tier but lacks details on output format, failure modes, or processing behavior. Adequate but not thorough.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is one sentence with no wasted words. It efficiently conveys the core function and additional cost/tier info.

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

Completeness4/5

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

Given the simplicity of the tool (one parameter, no output schema), the description covers the essential behavior and access constraints. Minor gap: no mention of return value or error handling, but acceptable for a straightforward operation.

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%, and the schema property description already includes 'in playback order'. The tool description adds no further meaning to the parameter, so baseline score of 3 is appropriate.

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

Purpose5/5

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

The description clearly states it merges multiple video clips into one continuous video. It is specific to the video_merge operation and distinguishes it from siblings like video_trim.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description mentions cost and tier requirement, providing some context, but it does not explicitly guide when to use this tool versus alternatives like video_trim or other merge-related tools.

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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