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import-on-interaction

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Use when reviewing slow initial loads caused by optional features. Prioritize code that is expensive to download or execute and not required for the first viewport, first input, or core task completion.

skills/import-on-interaction/SKILL.md

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Oct 31, 2026
License
MIT

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# Load non-critical code on user interaction

Users should not pay the download, parse, and execution cost for features they may never use. Import-on-interaction shrinks initial JavaScript, reduces main-thread work during page load, and keeps the first view focused on content that matters immediately.

## Quick Reference

- Move non-essential code behind clicks, focus, hovers, or explicit user actions
- Use dynamic import() so the code is absent from the initial route bundle
- Show immediate UI feedback while the deferred chunk loads
- Use this for chat widgets, editors, maps, filters, and export flows that are not needed on first paint

## Check

Inspect this route or component for heavy modules, widgets, or third-party scripts that load on first render but are only needed after a user clicks, focuses, hovers, or opens a panel.
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