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Claude Code LangChain plugins and skills

Flowy lists 2 plugins for LangChain work in Claude Code. Each one bundles skills a Claude Code agent can load while you work. Every listing shows what is inside before you install, who built it, and whether it is Auto-invoked, meaning a FLOW.md router fires the right skill as you prompt instead of leaving them dormant.

harness
automation

harness

English | 한국어 | 日本語 Harness is a team-architecture factory for Claude Code. Say "build a harness for this project" (English) or "하네스 구성해줘" (한국어) or "ハーネスを構成して" (日本語), and the plugin turns your domain description into an agent team and the skills they use — picked from six pre-defined team-architecture patterns.

1 skills
@revfactory@revfactoryView Plugin
skill-seekers
data

skill-seekers

English | 简体中文 | 日本語 | 한국어 | Español | Français | Deutsch | Português | Türkçe | العربية | हिन्दी | Русский 🧠 The data layer for AI systems.

2 skills
@yusufkaraaslan@yusufkaraaslanView Plugin

FAQ

What are the best Claude Code LangChain plugins?
Flowy lists 2 plugins for LangChain, ranked by fit and signal rather than raw install count. Open any listing to read every skill in full before you install it.
Do these LangChain skills run automatically?
The Auto-invoked ones do. They ship a FLOW.md router and a hook, so Claude Code loads the matching skill as you prompt. Indexed listings install normally and you invoke them yourself.
How does Flowy decide a plugin is a LangChain plugin?
The tag is derived from the plugin's own content, its skill names, descriptions, README and file types, not from a tag someone typed. A plugin appears here only when its real content matches.
Are these LangChain plugins free?
Yes. Flowy is free and open source with nothing gated. You can read every skill before installing, and each listing links to its upstream repository and its creator.

Browse every plugin