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system-prompt-creator

85 / 100 · Low risk

Fine to try.

By tronghieu/agent-skills (GitHub) · design · 105 stars · scanned at commit 831d1ae

Create high-quality, model-aware system prompts for any LLM (Claude, GPT, Gemini, open-source, etc.). Use this skill whenever the user wants to create, write, build, design, draft, or improve a system prompt, system instructions, or custom instructions for any AI model. Also trigger when the user asks about prompt engineering, prompt design, prompt optimization, or wants to define behavior for an AI assistant, chatbot, agent, or any LLM-powered application — even if they don't explicitly say "s…

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

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

if [ -e ~/.agents/skills/'system-prompt-creator' ] || [ -L ~/.agents/skills/'system-prompt-creator' ]; then echo 'A skill folder named system-prompt-creator already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/tronghieu/agent-skills' "$d" && git -C "$d" checkout --quiet '831d1ae5c686a81b10f9c5b9cca04a7b8b97303d' -- 'skills/system-prompt-creator' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/system-prompt-creator' ~/.agents/skills/'system-prompt-creator' && 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/'system-prompt-creator' ~/.claude/skills/'system-prompt-creator' (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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