Looking for alternatives to antigravity-awesome-skills in Prompt tooling? Here are 4 comparable open-source projects, with our health scores and licenses so you can choose with confidence.
system-prompts-and-models-of-ai-tools is an open-source project in the prompt tooling space with 138.9k GitHub stars. The repository is actively maintained, with recent commits.
A curated collection of ready-to-use DESIGN.md files — plain-markdown design system documents reverse-engineered from real companies' websites — that AI coding agents read to generate UI consistent with a given brand's visual language. Each entry analyzes a brand's color, typography, and layout patterns into a drop-in markdown spec.
A community-maintained archive documenting the leaked and extracted system prompts of major commercial AI chatbots and coding agents — Claude, ChatGPT, Gemini, Grok, Perplexity, Copilot and others — organized by vendor, model version, tool, and persona, often with diffs between releases.
A file-format specification and CLI/library from Google Labs for describing a design system to coding agents. A DESIGN.md combines machine-readable design tokens (YAML front matter) with human-readable rationale (markdown prose), and the tooling lints, diffs, and exports those tokens to formats like Tailwind and W3C DTCG.
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