Harneo Library Installs Claude Code Skills Into Any Repo

Harneo, an open-source library designed to bring reusable Claude Code skills into any code repository, officially launched on GitHub on November 3, 2026. Created by developer Ibrahim Kobeissy, the library aims to solve a common challenge: extending Claude Code workflows with custom tools, integrations, and automation capabilities without reinventing the wheel for each project.

What Harneo Does

Harneo functions as a skill packaging system for Claude Code. Instead of building one-off scripts or manually configuring Claude Code for every repository, developers can install pre-built skills from the Harneo library or create their own. These skills range from simple code linters and test runners to more complex integrations with CI/CD pipelines, documentation generators, and deployment tools.

The library follows a modular architecture. Each skill is a self-contained module that can be versioned, shared, and composed with other skills. This approach allows teams to build a standard toolkit of Claude Code capabilities that work consistently across multiple projects. For organizations already using Claude Code, Harneo provides a way to standardize AI-assisted workflows and share best practices through code.

Release Date and Availability

Harneo was officially released on November 3, 2026, as an open-source project on GitHub. The library is available for immediate installation via npm or direct cloning from the repository. Documentation includes setup instructions, a catalog of existing skills, and a contributor guide for developers who want to build and share their own skills with the community.

Technical Architecture

The library is built on a plugin system that integrates with Claude Code's API surface. Skills are defined as JSON configuration files paired with executable code. When installed into a repository, Harneo reads the skill definitions and exposes them to Claude Code as available actions. This design keeps the core library lightweight while allowing unlimited extensibility through community-contributed skills.

• Modular skill system with version control and dependency management
• JSON-based skill definitions for easy authoring and sharing
• Direct integration with Claude Code's command and action APIs
• Support for both synchronous and asynchronous skill execution

Use Cases and Adoption

Early adopters are using Harneo to automate repetitive tasks like generating boilerplate code, running test suites after every change, and syncing documentation with code updates. Some teams have built custom skills for internal tools, enabling Claude Code to interact with proprietary systems without exposing credentials or business logic to external services.

The library also opens the door for third-party vendors to package integrations as Harneo skills. A database provider, for example, could distribute a skill that helps Claude Code generate optimized queries for their platform. This ecosystem approach positions Harneo as infrastructure for a marketplace of Claude Code extensions.

What This Means

Harneo represents a shift toward composable AI developer tools. By treating Claude Code skills as installable, shareable artifacts, the library lowers the barrier to customizing AI coding workflows. For individual developers, it means faster setup and access to community knowledge. For organizations, it offers a path to standardize how teams use Claude Code across dozens or hundreds of repositories. As the skill library grows, Harneo could become a critical piece of infrastructure in the Claude Code ecosystem.