spine_create_animation

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

The description discloses only the default overwrite behavior. With no annotations provided, the description carries the full burden of behavioral disclosure, but it does not explain side effects like file modification, the effect of dryRun, expectedHash, or allowUnsupportedVersion parameters.

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 very concise, consisting of two short sentences. It front-loads the main action and adds a behavioral note. However, it could be more structured to include parameter 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?

Given the complexity of having 6 parameters with low schema coverage, no output schema, and being a mutation tool, the description is insufficient. It only addresses one behavioral aspect and fails to provide a complete understanding of the tool's behavior and parameters.

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 only 17%, with only filePath having a schema description. The tool description does not explain the meaning or usage of the animation parameter, nor does it provide context for overwrite, dryRun, expectedHash, or allowUnsupportedVersion. This is insufficient for a 6-parameter tool.

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 clearly states the tool's purpose: creating a new empty animation. It differentiates from sibling tools like clone, delete, and get animations by using the specific verb 'create' and specifying 'empty animation.' The default behavior is also mentioned.

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 does not provide any guidance on when to use this tool versus alternatives. No mention of prerequisites, when not to use it, or comparison with other tools like spine_clone_animation or spine_apply_pose_keyframes.

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