create_progress_bar_video

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

With no annotations, the description carries the full burden of behavioral disclosure, but it only says 'Create...' and discloses no side effects, defaults, output format, or constraints. For a generative tool that produces a video, this is a meaningful gap.

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 one short sentence with no filler and front-loads the action. It is concise to a fault, but the under-specification is penalized in other dimensions.

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?

The tool has three parameters and no annotations or output schema, yet the description does not explain how the parameters shape the result, what the default behavior is, or what is returned. This is adequate only for the most trivial no-argument invocation.

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 0%, and the description does not mention width, height, or duration. The default values in the schema are the only semantic information available, so the description adds no parameter-level value.

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 uses a specific verb ('Create') and a concrete resource ('animated loading/progress bar'), which distinguishes it from many sibling animation tools such as create_countdown_video. It doesn't explicitly say 'video', but the tool name and schema make that clear.

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 given about when to prefer this tool over siblings; it doesn't name alternatives like create_countdown_video or create_custom_animation, nor state any exclusion conditions. The only usage cue is the generic purpose sentence.

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