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harnessprotocol
harnessprotocolOFFICIAL
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harness-docs

Answers questions about installing, configuring, and understanding harness-kit plugins and workflows.

9|2|Updated Mar 7, 2026
Search Tags:#documentation#Claude Code#SKILL.md#plugin catalog#harness-kit#harness.yaml#cross-harness setup
One-click install
npx skills add https://github.com/harnessprotocol/harness-kit --skill harness-docs-harnessprotocol
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: harness-docs
Source: https://github.com/harnessprotocol/harness-kit/tree/main/skills/harness-docs
Command: npx skills add https://github.com/harnessprotocol/harness-kit --skill harness-docs-harnessprotocol

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

The harness-docs skill helps you quickly understand harness-kit’s installation, plugin/skill catalog, architecture, and cross-harness setup without hunting through scattered docs.

Core Features & Use Cases

  • Installation and Setup Guidance: Answers questions about installing skills/plugins and verifying installation for Claude Code and beyond.
  • Plugin Catalog & How to Use It: Covers what each bundled plugin does and when to use specific skills.
  • Architecture, Concepts, and FAQ: Explains core ideas like skills vs plugins, harness.yaml portability, and comparisons to MCP and other approaches.
  • Authoring and Integration Help: Guides how to write SKILL.md files (frontmatter and best practices) and how to use harness-kit with Copilot, Cursor, and Codex.

Quick Start

Ask about how to install a specific harness-kit plugin and what it does, for example: Determine how to install the research plugin and how to verify that it works in Claude Code.

Frequently Asked Questions about harness-docs

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I install and verify a harness-kit plugin in Claude Code?▼

Installing a harness-kit plugin involves following the setup guidance for your specific environment. You can verify the installation in Claude Code by checking if the plugin loads correctly and responds to designated queries about its functionality.

What is the difference between skills and plugins in harness-kit?▼

In harness-kit, skills and plugins are distinct architectural concepts. Skills define specific capabilities often authored via SKILL.md, while plugins bundle these functionalities into a distributable catalog for cross-harness setup.

Can I use harness.yaml to port skills across Claude Code, Copilot, Cursor, and Codex?▼

Yes, harness.yaml enables portability for skills across Claude Code, Copilot, Cursor, and Codex. The architecture supports cross-harness setup, allowing integration of workflows across multiple platforms.

How do I author a SKILL.md file with the correct frontmatter?▼

Authoring a SKILL.md file requires following specific best practices for frontmatter and content structure. The documentation provides integration help for writing these files to ensure your skill is properly formatted and recognized by the harness-kit system.

How does harness-kit compare to MCP for building agent capabilities?▼

Harness-kit differs from MCP by focusing on a portable plugin and skill catalog architecture defined by harness.yaml. It emphasizes cross-harness portability and SKILL.md authoring across Claude Code, Copilot, Cursor, and Codex.

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