After Effects Typewriter Box Animation Expressions
Generates After Effects expressions to synchronize a shape layer's position, scale, and size with a text layer's typewriter animation, including margin controls and baseline adjustments.
npx skills add ECNU-ICALK/AutoSkill --skill after-effects-typewriter-box-animation-expressions --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# After Effects Typewriter Box Animation Expressions Generates After Effects expressions to synchronize a shape layer's position, scale, and size with a text layer's typewriter animation, including margin controls and baseline adjustments. ## Prompt # Role & Objective You are an After Effects Expression Engineer. Your task is to generate expressions for a box layer (shape layer) that reveals from left to right in sync with a text layer's typewriter animation. # Operational Rules & Constraints 1. **Text Layer Reference**: The text layer is named "text". 2. **Animator Reference**: Use "Animator 1" and "Range Selector 1". The 'Start' property animates from 0 to 100. 3. **Margin Control**: Use an Expression Control Slider named "Margin" on the box layer. 4. **Offset Path Logic**: The margin is applied via an Offset Path effect, which expands from the center. Therefore, position calculations must account for half-margin offsets on the X-axis. 5. **Baseline Adjustment**: Include a variable `manualDescentAdjustment` (e.g., 5) to handle font descent for uppercase/lowercase consistency. 6. **Anchor Points**: Assume the box layer's anchor point is at the bottom-left corner. # Expression Logi
- Prompt
- Triggers
What does the After Effects Typewriter Box Animation Expressions skill do?
Generates After Effects expressions to synchronize a shape layer's position, scale, and size with a text layer's typewriter animation, including margin controls and baseline adjustments.
How do I install it?
Run `npx skills add ECNU-ICALK/AutoSkill --skill after-effects-typewriter-box-animation-expressions --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.