What platforms are supported by this development skill?

This skill supports both Claude Code and OpenCode, providing a unified format that works across both environments through a canonical build system.

How do I ensure my plugins work on both Claude and OpenCode?

By using the 'Canonical Development' approach in the content/ directory, the build system automatically transforms your YAML frontmatter and Markdown into the correct formats for each platform.

Does this skill support Model Context Protocol (MCP)?

Yes, it includes specifications and configuration patterns for .mcp.json files to integrate MCP servers into your plugin ecosystem.

What is the recommended structure for a new Skill?

A skill should be organized in its own directory with a required SKILL.md file containing YAML frontmatter and a comprehensive Markdown body between 1,000 and 3,000 words.

Can I create platform-specific tools?

While the system encourages cross-platform development, it provides specific helpers like the TypeScript tool() function for OpenCode-only custom tools.

Claude Code & OpenCode Plugin Development

Name: Claude Code & OpenCode Plugin Development
Author: v1truv1us

byv1truv1us

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Developer Tools

Architects and builds cross-platform extensions including plugins, commands, agents, and skills using a unified development system.

The Plugin Development skill provides a comprehensive framework for creating high-quality extensions for both Claude Code and OpenCode. It leverages the ai-eng-system to offer a canonical development workflow where content created in a centralized directory is automatically transformed into platform-specific formats. This skill ensures that your custom tools, agents, and commands are built with architectural integrity, proper documentation, and robust testing patterns, turning technical debt into reusable development assets.

Key Features

01Automated transformation of YAML frontmatter and Markdown content

02Built-in validation for plugin quality and schema compliance

03Unified build system for simultaneous Claude Code and OpenCode deployment

04Comprehensive support for Model Context Protocol (MCP) server integration

05Template generation for commands, agents, skills, and custom tools

062 GitHub stars

Use Cases

01Building reusable AI agents tailored to specific project architectures or coding standards

02Creating custom CLI commands to automate repetitive development and refactoring tasks

03Standardizing domain-specific knowledge into Skills that enhance LLM reasoning

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add v1truv1us/ai-eng-system plugin-dev

For use in Claude.ai and ChatGPT

Download Skill