What is after-effects?

An automation tool for Adobe After Effects projects on macOS. It uses scripts to inspect and change compositions, layers, keyframes, effects, assets, and rendering settings.

Creating or editing animations, querying project state, changing layers and effects, rendering compositions, and running batch operations.

It removes repetitive manual work when managing After Effects projects or processing many items at once.

after-effects — Skill for Claude Code by aedev-tools

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add aedev-tools/adobe-agent-skills --skill after-effects

Clone the repo

git clone --depth 1 https://github.com/aedev-tools/adobe-agent-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aedev-tools/adobe-agent-skills/after-effects/github.svg)](https://agentmods.dev/skills/aedev-tools/adobe-agent-skills/after-effects)

Your own site

<a href="https://agentmods.dev/skills/aedev-tools/adobe-agent-skills/after-effects"><img src="https://agentmods.dev/badge/skills/aedev-tools/adobe-agent-skills/after-effects/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aedev-tools/adobe-agent-skills/after-effects"><img src="https://agentmods.dev/badge/skills/aedev-tools/adobe-agent-skills/after-effects.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,640 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

Socket warn 15 Sept 2026
Snyk pass 15 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.05640
Opus 5.5	$0.00025	$0.02256
Sonnet 5.5	$0.00013	$0.01128
Haiku 4.5	$0.00006	$0.00564

Measured 1mo ago against content hash 665cf3286229, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

after-effects scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/runner.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/after-effects/SKILL.md · 432 lines

How it starts

The opening of the file, as written. The whole thing — 432 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Overview

This skill automates After Effects by generating ExtendScript (.jsx) and executing it via osascript. It reads project state through query scripts, uses rule files for domain knowledge, and wraps all mutations in undo groups.

First-Time Setup

Run scripts/runner.sh with any query script to detect the AE version
If multiple AE versions are installed, the user must choose one — runner.sh will prompt
Ensure AE Preferences > Scripting & Expressions > "Allow Scripts to Write Files and Access Network" is enabled

Workflow

For every user request:

Step 1: Gather context (auto-run, no confirmation needed)

Use --background for all query scripts — this skips ae.activate() so AE doesn't steal focus:

bash scripts/runner.sh --background scripts/active-state.jsx

Then read /tmp/ae-assistant-result.json for active comp, selected layers, CTI.

If this is the first interaction or the project context is unknown, also run:

bash scripts/runner.sh --background scripts/project-overview.jsx

This returns a summary by default: folder tree with counts, all comps listed, footage grouped by file type. NOT every individual file.

To drill into a specific folder:

bash scripts/runner.sh --background scripts/project-overview.jsx '{"mode": "folder", "folderName": "Images"}'

Only use full mode when you actually need every item listed:

bash scripts/runner.sh --background scripts/project-overview.jsx '{"mode": "full"}'

Step 2: Drill down if needed (auto-run)

If the task targets a specific comp:

bash scripts/runner.sh --background scripts/comp-detail.jsx '{"compName": "Comp Name"}'

If the task targets specific layers:

bash scripts/runner.sh --background scripts/layer-detail.jsx '{"layerNames": ["Layer 1", "Layer 2"]}'

Omit compName to use the active comp. Omit layerNames to use selected layers.

Additional query scripts

Expression errors — scan for broken expressions:

bash scripts/runner.sh --background scripts/expression-errors.jsx
bash scripts/runner.sh --background scripts/expression-errors.jsx '{"compName": "Main Comp"}'

Read the full file on GitHub · 432 lines

Files

What ships with it

52 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 432 lines · 63 tokens per session scan A 665cf3286229

Subscribe to this mod's changes

after-effects is a skill published in the GitHub repository aedev-tools/adobe-agent-skills (114 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 63 tokens to every session and 5,640 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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