sickn33/antigravity-awesome-skills: 1,500+ Installable Agentic Skills Spanning Claude Code, Cursor, Codex, Gemini CLI and Antigravity

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This installable library aggregates 1,500+ agentic skills across Claude Code, Cursor, Codex CLI, Gemini CLI, and Google's Antigravity, reaching ~40,000 stars. Its cross-harness coverage — including Antigravity — is a useful read on which agent platforms now expect a shared skills ecosystem. For builders, it lowers the cost of staying tool-agnostic as the harness landscape fragments.