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Sucker Punch: Async Processing

Name: Sucker Punch: Async Processing
Author: brandonhilkert

Founder, get efficient async processing with Sucker Punch, a Ruby library, backed by 2.6k+ GitHub stars.

From the repo · “Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.”

2,627 stars108 forksRubyGuide quality 8/10 · reviewed Jul 31Updated 12/24/2025100% free · open source

What it does

Sucker Punch is a Ruby library that allows you to run tasks asynchronously in the background, improving the performance and responsiveness of your application

When to use it

•When you need to perform time-consuming tasks, such as sending emails or processing large datasets, without blocking the main thread of your application
•When you want to scale your application horizontally by adding more workers to handle tasks in parallel
•When you need to retry failed tasks with a built-in retry mechanism

Ready-to-paste prompt

MyWorker.async.perform('user_id', 'newsletter_id') to queue a task to send a newsletter to a specific user

Heads up: Make sure to configure the `queue` setting in the `config/initializers/sucker_punch.rb` file to specify the concurrency level and other settings for your workers, as the default settings may not be suitable for production environments

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/sucker-punch && curl -fsSL https://workflowstacks.com/api/skills/sucker-punch/claude-skill -o ~/.claude/skills/sucker-punch/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Sucker Punch: Async Processing works

Codeflow

Free to inspect

Sucker Punch: Async Processing is a tiny Ruby project (~350 lines across 11 code files, plus 7 test files). Setup is light: install Ruby, run one command. Last commit 10 months ago, MIT license, has a test suite.

Size

Tiny codebase

~350 lines · 11 code files · 3 min skim

Setup

Light setup

Install Ruby, run one command.

Runs on

Ruby

No API keys detected

Ruby 100%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
lib/sucker_punch.rb
Inside lib/ — the main logic begins here

What's in each folder

lib/Core code — the actual logic12 files

test/Tests — proof it works6 files

.github/CI / automation (GitHub Actions)1 files

READMEHas testsThin docsCI checksMIT licenseLast update 10 mo ago