async-parallel
When async operations have no interdependencies, execute them concurrently using Promise.all().
- Skills
- Web development
- 1
What it does and how to use it
A skill that teaches Claude Code to do web development tasks well. It is packaged knowledge the model uses whenever it is relevant.
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Install (Claude Code)
mkdir -p .claude/skills/async-parallel && curl -fsSL https://doutorai.pt/data/lib/skills__async-parallel.md -o .claude/skills/async-parallel/SKILL.mdPaste this command into the terminal, in your project folder, and the component installs automatically.
Content
---
title: Promise.all() for Independent Operations
impact: CRITICAL
impactDescription: 2-10× improvement
tags: async, parallelization, promises, waterfalls
---
## Promise.all() for Independent Operations
When async operations have no interdependencies, execute them concurrently using `Promise.all()`.
**Incorrect (sequential execution, 3 round trips):**
```typescript
const user = await fetchUser()
const posts = await fetchPosts()
const comments = await fetchComments()
```
**Correct (parallel execution, 1 round trip):**
```typescript
const [user, posts, comments] = await Promise.all([
f
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