spine_create_loading_animation_preset

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

With no annotations, the description carries full burden. It discloses that the tool writes JSON + manifest only, preserves the source file unchanged, and explains the overwrite behavior. It does not cover permissions, error states, or side effects beyond file writing.

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 four sentences, each serving a clear purpose: purpose, presets, output scope, and exclusions. It is front-loaded with the most important information and contains no filler.

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 6 parameters, no output schema, and no annotations, the description covers the key aspects: what it does, what it outputs, and what it excludes. It lacks explanation of return values or post-creation behavior, but is otherwise sufficient for an agent to select and invoke the tool.

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 baseline is 3. The description repeats the preset list but adds no additional meaning or usage context beyond the schema. It does not explain parameter interactions or provide examples.

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), names the resource (loading animation preset on a Spine JSON copy), lists all five presets, and explicitly states what it is not for (mesh, IK, weights, UI automation), clearly distinguishing it from siblings.

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 tells when not to use the tool ('Not for mesh, IK, weights, or UI automation') and implicitly defines usage via preset names. However, it does not explicitly reference alternative sibling tools or provide context for when to choose this over others.

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