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challenge

100 / 100 · Low risk

Fine to try.

By sinhoneyy/master-skills (GitHub) · coding · 17 stars · scanned at commit 8e70b78

Pre-mortem plan analysis. Imagine the plan failed 12 months from now and work backwards to find the weaknesses. Surfaces assumptions, dependencies, and execution risks before committing resources. Use when before significant resource commitment, before presenting to a board or investors, when feedback has been one-sidedly positive, or when there is pressure to move fast and figure it out later.

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/'challenge' ] || [ -L ~/.agents/skills/'challenge' ]; then echo 'A skill folder named challenge already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/sinhoneyy/master-skills' "$d" && git -C "$d" checkout --quiet '8e70b780359915a1f197ca37a1add2d4016115a2' -- 'skills/challenge' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/challenge' ~/.agents/skills/'challenge' && 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/'challenge' ~/.claude/skills/'challenge' (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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