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test-animation

Test a keyframe or expression animation on a specified composition layer in After Effects.

Instructions

Test animation functionality in After Effects

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
compIndexYesComposition index (usually 1)
operationYesThe animation operation to test
layerIndexYesLayer index (usually 1)
Behavior2/5

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

With no annotations, the description carries full burden for behavioral disclosure. It does not mention side effects, permissions, return values, or whether testing executes the animation or just validates parameters. This is a significant gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence with no superfluous words. However, it sacrifices informativeness for brevity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the absence of output schema and the complexity of animation testing, the description is incomplete. It fails to explain what the tool actually does (e.g., validate, simulate, return status) and how to interpret results.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

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 adds no extra meaning beyond the schema's parameter definitions, which already include enums and descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a generic verb 'Test' and resource 'animation functionality', which is vague and does not clearly distinguish from sibling tools like 'setLayerKeyframe' or 'setLayerExpression'. It avoids tautology but lacks specificity about what testing entails.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. Sibling tools such as 'setLayerKeyframe' and 'setLayerExpression' are functionally related, but the description offers no context for selection.

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

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