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prototyping

100 / 100 · Low risk

Fine to try.

By hashgraph-online/awesome-codex-plugins (GitHub) · coding · 1,563 stars · scanned at commit 6d2e63f

Use this skill whenever the design has unknowns that need testing — when a sketch could resolve a debate, when assumptions about user behavior could be checked cheaply, when a high-fidelity build would benefit from a low-fidelity draft first. Trigger when planning research, when scoping a new feature, when stakeholders want to see something concrete, or when the team is stuck arguing about an approach. Prototyping is one of the foundational principles in 'Universal Principles of Design' (Lidwel…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'prototyping' ] || [ -L ~/.agents/skills/'prototyping' ]; then echo 'A skill folder named prototyping already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/hashgraph-online/awesome-codex-plugins' "$d" && git -C "$d" checkout --quiet '6d2e63f73f845eb5dd94c1debba627d4b6e32fba' -- 'plugins/HDeibler/universal-design-principles/plugins/process-and-robustness-principles/skills/prototyping' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/HDeibler/universal-design-principles/plugins/process-and-robustness-principles/skills/prototyping' ~/.agents/skills/'prototyping' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'prototyping' ~/.claude/skills/'prototyping' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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