Convert video format

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 mentions re-encoding and quality affects file size, but does not disclose critical behaviors: what happens if output_path is omitted, whether existing files are overwritten, whether the source is modified, or what the tool returns upon success/failure. This is a significant gap for a mutation tool.

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

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

The description is a single, front-loaded sentence that states the action, target formats, and quality setting with no wasted words. It earns every word and is easy to scan.

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

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

For a tool that re-encodes files, this description is incomplete. It lacks explanation of output path default behavior, overwrite policy, return values, or possible errors. With no output schema and no annotations, the description should cover these operational details, but it covers only the basic purpose and quality.

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

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

Schema description coverage is 100%, so the baseline is 3. The description adds minor context by naming the format list and quality setting, but the schema already describes each parameter, including the quality/size tradeoff. No additional meaning is given for input_path or output_path beyond their schema descriptions.

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

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

The description clearly states the tool re-encodes videos to specific target formats (mp4, webm, mov, mkv), which distinguishes it from most siblings like trim_video or resize_video. However, it does not explicitly differentiate from compress_video, which also involves re-encoding and could overlap in use cases.

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

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

The description implies the tool should be used when a video needs to be converted to another container/format, but it provides no explicit guidance on when not to use it or how it compares to alternatives like compress_video. No exclusions or alternative tool references are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.