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AE MCP Server

AE MCP Server

by p10q
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

apply_animation_preset

Apply predefined animation presets like fade, slide, scale, or bounce to layers in After Effects compositions to create consistent motion effects.

Instructions

Apply predefined animation presets

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "compId": "<compId>",
      "layerIndex": "<layerIndex>",
      "preset": "<preset>"
    },
    "name": "apply_animation_preset"
  }
}

Input Schema

NameRequiredDescriptionDefault
compIdYesID of the composition
layerIndexYesIndex of the layer
presetYesAnimation preset to apply
durationNoAnimation duration in seconds
startTimeNoStart time (defaults to current time)
propertiesNoWhich properties to animate (defaults based on preset)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. 'Apply' suggests a mutation operation, but the description doesn't mention whether this requires specific permissions, whether the changes are reversible, what happens to existing animations on the layer, or what the expected outcome looks like. This is inadequate for a tool that modifies compositions.

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

Conciseness5/5

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

The description is extremely concise at just three words, with zero wasted language. It's front-loaded with the core action and resource, making it immediately understandable despite its 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?

For a mutation tool with 6 parameters and no annotations or output schema, the description is insufficient. It doesn't explain what 'applying' entails operationally, what happens to existing animations, whether there are side effects, or what success looks like. The context demands more behavioral detail than provided.

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 schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description doesn't add any additional parameter semantics beyond what's in the schema, which meets the baseline expectation when schema coverage is complete.

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

Purpose4/5

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

The description clearly states the verb 'apply' and the resource 'predefined animation presets', making the purpose understandable. However, it doesn't differentiate this tool from sibling animation tools like 'apply_easy_ease' or 'create_animation_curve', which would require more specific language about what makes this tool unique.

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?

The description provides no guidance on when to use this tool versus alternatives. With many sibling tools for animation and effects (like 'apply_easy_ease', 'apply_effect', 'create_animation_curve'), there's no indication of when this preset application is preferred over other animation methods.

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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