Skills

Skills are reusable workflows that extend what Jarvis can do. They combine multiple steps — tool calls, conditional logic, and structured output — into named operations that Jarvis can invoke automatically or on request.

What Are Skills?

A skill is a SKILL.md file that defines a multi-step workflow. Unlike individual tool calls, skills can:

• Chain multiple tools together
• Include conditional logic
• Maintain state across steps
• Present results in a structured format

Using Skills

Jarvis automatically discovers available skills and can invoke them when appropriate. You can also explicitly request a skill:

Run the code-review skill on the current changes

Skill Definition Format

Each skill is a Markdown file (SKILL.md) with structured sections. Here's a minimal example:

# My Skill

Short description of what this skill does.

## What This Skill Does

Longer explanation for the AI agent executing this skill.

## Steps

### Step 1: Gather context
Read the current project state and identify relevant files.

### Step 2: Execute action
Call the appropriate tools with the gathered context.

### Step 3: Report results
Summarize what was done and any follow-up actions.

Skills live in the skills/ directory. Each skill gets its own folder:

skills/
└── corelayer-mcp-adapter/
    └── SKILL.md

Skill Sources

Skills can come from:

• Built-in — shipped with CoreLayer (e.g., corelayer-mcp-adapter)
• Community — shared by other users
• Custom — written by you

Built-in Skills

Writing a Custom Skill

1. Create a folder under skills/: skills/my-skill/
2. Add a SKILL.md file with your workflow definition
3. Restart CoreLayer — Jarvis will discover the new skill automatically

The corelayer-mcp-adapter skill is a good reference for how to structure multi-step workflows with clear instructions, checklists, and examples.

Next Steps

• Tool Registry — how skills are registered
• Add a Custom Tool — create your own extensions
• Connect an MCP App — the MCP adapter skill in action