transfer_outfit

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

Although no annotations exist, the description discloses frame count limits (2-16) and pixel size range (32-256px), adding behavioral context beyond the schema. It does not detail other behavioral traits like seed determinism or background handling, but covers key constraints.

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 sentences: first states action and constraints, second states purpose. No redundancy, every sentence earns its place.

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 tool with 5 parameters, nested objects, no output schema, and many siblings, the description covers core purpose and constraints. Lacks explanation of return value or process details, but is sufficient for an AI agent given the context.

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 coverage is 100%, baseline 3. The description adds the 32-256px size constraint not present in schema descriptions, providing additional value. It does not repeat schema parameter details, which is acceptable.

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 'transfer' and resource 'outfit/costume from reference image onto animation frames', clearly distinguishing it from siblings that generate or edit animations differently.

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 states when to use: 'reskin an existing animation with a different character appearance'. It implies a specific use case, but does not explicitly exclude or compare to alternatives.

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