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principle-type-system-discipline

100 / 100 · Low risk

Fine to try.

By jsartisan/frontend-challenges (GitHub) · design · 90 stars · scanned at commit 630c44b

Apply when designing types, reviewing a function signature, or writing code in any statically-typed language. Make illegal states unrepresentable, brand semantic primitives, parse external data at boundaries, exhaust variants, derive from authoritative schemas.

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/'principle-type-system-discipline' ] || [ -L ~/.agents/skills/'principle-type-system-discipline' ]; then echo 'A skill folder named principle-type-system-discipline already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/jsartisan/frontend-challenges' "$d" && git -C "$d" checkout --quiet '630c44b299f1467e789d561da3785cfd99247ed0' -- '.claude/skills/principle-type-system-discipline' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/principle-type-system-discipline' ~/.agents/skills/'principle-type-system-discipline' && 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/'principle-type-system-discipline' ~/.claude/skills/'principle-type-system-discipline' (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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