Swift Library Design is a production-ready Claude Code skill (quality score 70/100) in the architecture sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/swift-library-design/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when developers mention: (1) designing a Swift library or framework, (2) public API design patterns, (3) protocol-oriented architecture or associated types, (4) result builders or DSL design, (5) performance optimization for libraries, (6) @inlinable or @usableFromInline, (7) noncopyable types for APIs, (8) progressive disclosure in API design, (9) ResponseGenerator or builder patterns.
The Swift Library Design skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.
mkdir -p ~/.claude/skills/swift-library-design curl -L https://claudskills.com/skills/swift-library-design/SKILL.md \ -o ~/.claude/skills/swift-library-design/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/swift-library-design/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/swift-library-design/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\swift-library-design\SKILL.md on Windows. See the full install guide for step-by-step instructions.
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
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