Plugin

Fullstack Dev Skills

Comprehensive skill pack with 67 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.

Type: Plugin
Repository: Jeffallan/claude-skills
GitHub stars: 11.6k
License: MIT
Repo last updated: Aug 7, 2026
Source file: .claude-plugin/plugin.json
Version: 0.4.16
Author: Jeffallan

What Fullstack Dev Skills is

Fullstack Dev Skills is a plugin published in the Jeffallan/claude-skills repository on GitHub, which has about 11.6k stars. The repository describes itself as: “67 Specialized Skills for Full-Stack Developers. Transform Claude Code into your expert pair programmer.”

A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.

Installing Fullstack Dev Skills adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.

How to install Fullstack Dev Skills

Claude Code

Add the repository as a plugin marketplace: claude plugin marketplace add Jeffallan/claude-skills
Install the plugin: claude plugin install fullstack-dev-skills@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
Restart the session if the new skills or commands don't appear straight away.

Claude Cowork

Open Customize → Plugins and choose Add marketplace.
Enter Jeffallan/claude-skills (the owner/repo shorthand works for GitHub).
Find Fullstack Dev Skills in the list, click Install, then connect any connectors it needs from its Connectors tab.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from .claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.

Quick Start

/plugin marketplace add jeffallan/claude-skills

Then, install the skills:

/plugin install fullstack-dev-skills@jeffallan

For all installation methods and first steps, see the Quick Start Guide.

Full documentation: jeffallan.github.io/claude-skills

Skills

67 specialized skills across 12 categories covering languages, backend/frontend frameworks, infrastructure, APIs, testing, DevOps, security, data/ML, and platform specialists.

See Skills Guide for the full list, decision trees, and workflow combinations.

Usage Patterns

Context-Aware Activation

Skills activate automatically based on your request:

# Backend Development
"Implement JWT authentication in my NestJS API"
→ Activates: NestJS Expert → Loads: references/authentication.md

# Frontend Development
"Build a React component with Server Components"
→ Activates: React Expert → Loads: references/server-components.md

Multi-Skill Workflows

Complex tasks combine multiple skills:

Feature Development: Feature Forge → Architecture Designer → Fullstack Guardian → Test Master → DevOps Engineer
Bug Investigation:   Debugging Wizard → Framework Expert → Test Master → Code Reviewer
Security Hardening:  Secure Code Guardian → Security Reviewer → Test Master

Context Engineering

Surface and validate Claude's hidden assumptions about your project with /common-ground. See the Common Ground Guide for full documentation.

Project Workflow

The 9 workflow commands manage epics from discovery through retrospectives, integrating with Jira and Confluence. See Workflow Commands Reference for the full command reference and lifecycle diagrams.

> [!TIP] > Setup: Workflow commands require an Atlassian MCP server. See the Atlassian MCP Setup Guide.

Documentation

Quick Start Guide - Installation and first steps
Skills Guide - Skill reference and decision trees
Common Ground - Context engineering with /common-ground
Workflow Commands - Project workflow commands guide
Atlassian MCP Setup - Atlassian MCP server setup
Local Development - Local skill development
Contributing - Contribution guidelines
skills/\*/SKILL.md - Individual skill documentation
skills/\*/references/ - Deep-dive reference materials

Contributing

See Contributing for guidelines on adding skills, writing references, and submitting pull requests.

Changelog

See Changelog for full version history and release notes.

License

MIT License - See LICENSE file for details.

Support

Issues: GitHub Issues
Discussions: GitHub Discussions
Repository: github.com/jeffallan/claude-skills

Author

Built by jeffallan

Principal Consultant at Synergetic Solutions

Fullstack engineering, security engineering, compliance, and technical due diligence.

Community

Star History

Built for Claude Code | 9 Workflows | 371 Reference Files | 67 Skills

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Fullstack Dev Skills?

Fullstack Dev Skills is a plugin for Claude Code and Claude Cowork from the Jeffallan/claude-skills repository on GitHub. Comprehensive skill pack with 67 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.

How do I install Fullstack Dev Skills in Claude Code?

Add the repository as a plugin marketplace: claude plugin marketplace add Jeffallan/claude-skills Install the plugin: claude plugin install fullstack-dev-skills@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.

Can I use Fullstack Dev Skills in Claude Cowork?

Open Customize → Plugins and choose Add marketplace. Enter Jeffallan/claude-skills (the owner/repo shorthand works for GitHub). Find Fullstack Dev Skills in the list, click Install, then connect any connectors it needs from its Connectors tab.

Is Fullstack Dev Skills safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.