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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds only that it retrieves additional information and does not clarify what kinds of functions or identifiers are involved, what is returned, or any limitations.

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?

It is a single sentence but is rambling and front-loaded with filler ('Sometimes when we want to...'). It does not clearly lead with the operation or purpose.

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?

An output schema exists, so return values need not be explained. However, the description still leaves the two required inputs undefined and does not situate the tool among the many video-related siblings, making it inadequate for correct 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?

Both required parameters, identifier and functionName, have 0% schema description coverage. The description never mentions either parameter or explains what an identifier or function name means in this context.

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 vaguely says it may get additional information like voice_id when generating videos, but does not state a specific operation or resource. It is not clearly distinguishable from siblings such as generateVideoOptions or generateVideoTool.

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?

It implies the tool is used when extra video-generation information is needed, but gives no explicit when-to-use guidance, prerequisites, exclusions, or alternatives. The agent is left to infer its role among several video-related siblings.

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