Contagious

Contagious is an AI Engineering skill for Claude Code, published by jeremylongshore in claude-code-plugins-plus-skills.

2.6K stars384 forkson jeremylongshore/claude-code-plugins-plus-skillsAdded 2026/08/12Repository updated 2026/08/12

agent-skillsaiai-agentsanthropicautomationclaude-codeclaude-code-pluginsdeveloper-toolsdevopsllmmarketplacemcpplugin-marketplaceplugin-systemsaasskills

Install in seconds

Install Contagious

Copy Contagious into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/main/plugins/business-tools/wondelai-contagious ~/.claude/skills/wondelai-contagious

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/jeremylongshore/claude-code-plugins-plus-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: plugins/business-tools/wondelai-contagious/SKILL.md in jeremylongshore/claude-code-plugins-plus-skills
Installs to: ~/.claude/skills/wondelai-contagious
Collection: One of 53 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Contagious does

Contagious helps you engineer word-of-mouth using the STEPPS framework: Social Currency, Triggers, Emotion, Public, Practical Value, and Stories. Use it when designing shareable features, campaigns, or products meant to spread by peer recommendation.

Contagious is cataloged under AI Engineering on DirSkills. Contagious comes from a repository tagged agent-skills, ai, ai-agents, anthropic and automation.

Documentation

README

Excerpt

Word-of-Mouth & Virality Framework

A framework for engineering word-of-mouth and making products, ideas, and content contagious, based on Jonah Berger's research into why things catch on. Use it to design shareability into products, campaigns, and content instead of hoping for luck.

Core Principle

Virality is not born — it is engineered. Products spread because they were designed — consciously or not — to be shared. Only 7% of word-of-mouth happens online; the other 93% happens in offline conversations, so virality is about the psychology of sharing, not social media mechanics. Those psychological patterns are predictable and can be engineered into anything using the STEPPS framework.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Contagious

What else does jeremylongshore publish alongside Contagious?
Contagious is one of 53 skills that DirSkills catalogs from jeremylongshore/claude-code-plugins-plus-skills, the repository it ships in. Its siblings there include Agency OS, Anti-Deception and Audit. Each one is a separate skill with its own page in this directory, installs the same way Contagious does, and is maintained by jeremylongshore in that same repository. The rest of the collection is listed on the jeremylongshore/claude-code-plugins-plus-skills page.
How does Contagious compare to other AI Engineering skills?
Contagious ranks #761 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Contagious against them. Open each page to compare what they document and how they install.