Show HN: SkillDeck – macOS app to manage skills across multiple AI agents (github.com)

A new macOS application, SkillDeck, has been launched as the first desktop GUI for managing skills across multiple AI code agents, including Claude Code, Codex, Gemini CLI, and Copilot CLI. This tool simplifies the management of AI skills by eliminating the need for manual file editing, symlink juggling, and cumbersome YAML parsing, making it more accessible for developers working in the AI/ML space. Key features include a unified dashboard for viewing skills, one-click installation that automates symlink creation, and an update checker that detects and pulls changes quickly. SkillDeck's significance lies in its support for multiple agents, allowing developers to manage different skills seamlessly from one interface. The application employs a sophisticated architecture based on Swift actors for thread-safe file access and utilizes a split-pane SKILL.md editor with live preview capabilities. By serving as a centralized hub for skill management, SkillDeck aims to enhance productivity among developers and streamline the integration of skills in AI applications, marking a notable advancement in the usability of AI development tools.