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create-adjustment-layer

Creates an adjustment layer in After Effects compositions, specifying properties like position, size, duration, and start time. Supports active or named compositions.

Instructions

Create an adjustment layer in the specified composition (or active comp).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoLayer name (default: Adjustment Layer).
sizeNoLayer size [width,height]. Defaults to comp dimensions.
compNameNoComposition name. If omitted, active composition is used.
durationNoLayer duration in seconds.
positionNoLayer position [x,y] or [x,y,z].
startTimeNoLayer start time in seconds.
Behavior2/5

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

No annotations are provided, so the description bears full burden. It does not disclose side effects, permissions, or system impacts. For a mutation tool, this is insufficient.

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 wasted words. However, it could be slightly more detailed without losing conciseness.

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?

With 6 optional parameters, no annotations, and no output schema, the description lacks essential context such as return behavior, error handling, and parameter usage beyond names. It is incomplete for a mutation tool.

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?

The input schema has 100% coverage with inline descriptions for each parameter. The tool description adds no additional meaning beyond the schema, so baseline 3 applies.

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

Purpose5/5

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

The description clearly states the action ('Create') and the resource ('adjustment layer'), with a qualifier ('in the specified composition or active comp'). It distinguishes from sibling tools like 'create-camera' or 'create-text-layer'.

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 explicit guidance on when to use this tool over alternatives (e.g., other layer creation tools or effects). The description does not mention prerequisites, conditions, or when not to use it.

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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