niksi: install, review, and share agent skills

nik lets you install skills from Git repositories and keeps them up to date. Each skill is stored once and symlinked into your favourite agents: Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode, Windsurf, Amp, Kiro, Cline, Qwen Code, and any agent that reads .agents/skills.

Niksi is the Finnish word for “trick”

What you get

• Install only what you need: nik add owner/repo lists the skills in a repository. Pick the ones you want and which agents can use them.
• Choose a scope: install skills in a specific project or globally.
• See what you are installing: before anything is written, nik lists every file, scans the contents, and tells you if something looks harmful.
• Scan installed skills again: nik audit runs the current rules over the skills on disk, offline. Run it after you upgrade niksi.
• Keep skills up to date: nik update fetches each source and shows you the diff. Approve it, or keep what you have.
• Pin what should never change: nik add owner/repo@v1.2.0. Everything else follows the latest stable tag, or the default branch.
• Share skills with your team:…