This skill should be used when creating extensions for Claude Code or OpenCode, including plugins, commands, agents, skills, and custom tools. Covers both platforms with format specifications, best practices, and the ai-eng-system build system.
Inherits all available tools
Additional assets for this skill
This skill inherits all available tools. When active, it can use any tool Claude has access to.
references/agent-format.mdreferences/claude-code-plugins.mdreferences/command-format.mdreferences/opencode-plugins.mdreferences/opencode-tools.mdreferences/skill-format.md