create_typing_text_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 states the high-level effect. It does not mention input validation, output format, rendering behavior, defaults, or side effects. The agent is left unaware of what happens beyond 'create a typing animation'.

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 focused sentence with no filler, and the core purpose is front-loaded. It is concise and easy to parse, though it may be too short to carry the information burden required by the tool's complexity.

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 five parameters, no annotations, no output schema, and a large sibling set, this description is incomplete. It does not explain parameter semantics, expected output, or how it differs from similar animation-creation tools, so an agent has only minimal information to select and invoke it correctly.

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 adds no parameter-level meaning. Width, height, duration, and font_size are completely unexplained; even 'text' is only implied by the tool name. The description fails to compensate for the schema's lack of documentation.

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 clear resource ('typing-machine style text animation'), which is more distinctive than a generic 'text video'. However, it does not explicitly differentiate itself from siblings like create_text_video or create_animated_text, leaving some ambiguity.

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 about when to use this tool versus alternatives. While the description implies a special text animation style, it never states when to prefer this over create_text_video or other animation tools. The agent must infer usage entirely from the name and sibling list.

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