Getting started for Skills for Java

July 7, 2026 ยท View on GitHub

If you are interested in getting the benefits of these Skills for Java, read this document.

What is a Skill?

Agent Skills are a lightweight, open format for extending AI agent capabilities with specialized knowledge and workflows.

At its core, a skill is a folder containing a SKILL.md file. This file includes metadata (name and description, at minimum) and instructions that tell an agent how to perform a specific task. Skills can also bundle scripts, templates, and reference materials.

How to install the Skills?

Using a Registry: npx skills

Use the following commands to list and install the Skills:

#To install npx
brew install node
sudo apt install nodejs npm

# Install at User level
npx skills add jabrena/plinth --global --agent cursor --all
npx skills add jabrena/plinth --global --agent claude-code --skill '*' -y

npx skills remove --global --agent cursor -y
npx skills remove --global --agent claude-code --skill '*' -y
npx skills remove --global -y \
  $(jq -r '.skills | to_entries[] | select(.value.source == "jabrena/plinth") | .key' ~/.agents/.skill-lock.json)

# Install at project level
npx skills --help
npx skills add jabrena/plinth --list
npx skills add jabrena/plinth --agent cursor --all
npx skills add jabrena/plinth --agent claude-code --all

Using Claude plugins

claude plugin marketplace add https://github.com/jabrena/plinth

Using Skillsjars

https://www.skillsjars.com/ https://github.com/skillsjars/skillsjars-maven-plugin

<build>
    <plugins>
        <plugin>
            <groupId>com.skillsjars</groupId>
            <artifactId>maven-plugin</artifactId>
            <version>0.0.5</version>
            <dependencies>
                <!-- Your SkillsJars -->
                <dependency>
                    <groupId>com.skillsjars</groupId>
                    <artifactId>SKILLJAR_ARTIFACT_ID</artifactId>
                    <version>SKILLJAR_VERSION</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>

Extract Skills in a directory compatible with your AI Tool like Cursor, Claude Code or Github Copilot:

./mvnw skillsjars:extract -Ddir=.agents/skills
./mvnw skillsjars:extract -Ddir=.claude/skills
./mvnw skillsjars:extract -Ddir=.github/skills

Using Skill portals