Create Render Data

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

With no annotations, the description carries the behavioral disclosure burden. It does disclose the update-if-exists behavior and the returned handle, which is helpful. However, it omits side effects, such as the update_if_exists flag condition, make_active effects, default parent handling, or what happens to unspecified settings during an update.

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?

Two compact sentences that front-load the core action, summarize the key parameter groups, and state the return value. There is no fluff or repetition of schema details.

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 description plus the fully documented schema give an agent enough to invoke the tool correctly. The return handle and chaining hint fill the main gap left by the missing output schema, though a note about the update_if_exists condition would make it fully 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 every parameter. The description adds only a high-level grouping of resolution, renderer, fps, and frame range, which is useful but does not materially extend what the schema already provides.

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 names a specific action (create/update), a specific resource (RenderData), and the key attribute groups (resolution, renderer, fps, frame range). It also states the return value, making the tool's purpose unmistakable and distinguishing it from generic create tools like create_entity or create_take.

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?

The description clearly frames the tool as a one-call setup operation and explains that the returned handle is meant for chaining with create_take or set_params. It does not explicitly name alternatives or exclusions, but the intended workflow context is clear.

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