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video_reverse

Reverse video and audio to play backwards by specifying an input video path to generate a reversed output file.

Instructions

Reverse video and audio playback so it plays backwards.

Args: input_path: Absolute path to the input video. output_path: Where to save the output. Auto-generated if omitted.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
input_pathYes
output_pathNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

With no annotations provided, the description carries full responsibility for behavioral disclosure. It mentions that audio is also reversed and that output can be auto-generated, but it does not address whether the operation is destructive, what file formats are supported, or any side effects (e.g., time length remains same). This is insufficient for a tool with no annotation support.

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 extremely concise: a single sentence defining the tool's purpose followed by a clear, structured argument list. Every sentence adds value, and the format is easy to scan. No wasted words.

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 (2 parameters, 1 required) and the presence of an output schema, the description covers the essential purpose and parameters. However, it lacks information about input file constraints, output format, or potential errors, leaving room for improvement. Still, it is sufficiently complete for a straightforward operation.

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?

Schema coverage is 0%, so the description is the sole source of parameter meaning. It explains that input_path requires an absolute path and output_path is optional with auto-generation. This adds useful context beyond the schema's basic type and title information. However, it could specify format requirements or constraints (e.g., file extension).

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 states a specific verb ('reverse') and resource ('video and audio') and clearly indicates the result ('plays backwards'). This is unique among sibling tools, which include many video editing operations but no other tool focused on reversing playback.

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 is provided on when to use this tool versus alternatives. There is no mention of use cases, prerequisites, or exclusions. The description simply states what the tool does without context for selection.

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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