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 reveals auth and plan requirements, but does not state whether the original generation is modified, whether video creation is asynchronous, what the output artifact is, or any cost/rate implications. The word 'turn' implies transformation without clarifying side effects.

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 core purpose first, then the key prerequisites. There is no filler, repetition, or unnecessary detail.

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 simple two-parameter tool, the description plus schema covers the basic inputs and prerequisites. However, with no output schema and no annotations, it leaves out what the agent should expect as a return value, whether the operation is synchronous, and what failure modes may occur, so it is only minimally complete.

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 schema already documents generation_id and motion. The description adds no new parameter-level meaning beyond reinforcing that the generation must be finished, which matches the schema's 'ready' wording.

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 opens with a specific verb and resource: 'Turn a finished PromptFrenzy image generation into a short video clip.' This clearly distinguishes it from sibling tools like generate, get_generation, and search_prompts, which handle creation or retrieval rather than animation.

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 provides clear invocation context by requiring a finished image generation and stating the user's API key and plan-level video support. It does not explicitly name alternatives or exclusion cases, but the prerequisite guidance makes when-to-use reasonably explicit.

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