video_reframe

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

The description only says 'crops', implying a destructive or transformative operation, but provides no details on whether it modifies the original, creates a new file, or any side effects. No annotations exist to compensate.

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 extremely short but incomplete—it ends mid-sentence. It is underspecified rather than concisely complete.

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?

Given no parameters, no output schema, and a truncated description, the tool is severely incomplete. An agent cannot understand how to invoke it or what result to expect.

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?

The input schema has no parameters, yet the description mentions a target aspect ratio without explaining how it is specified. The description adds no value beyond the empty schema.

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 starts to say it crops a video to a target aspect ratio but is cut off, leaving ambiguity about what exactly it does. It fails to distinguish from sibling tools like video_trim or video_concat.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, typical use cases, or comparisons to related tools.

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