Logic

Quality score: 70/100 · Category: General · Sub-category: general-misc

Master formal and informal logic - valid reasoning, fallacies, paradoxes. Use for: argument analysis, validity, soundness, logical form, fallacies, paradoxes. Triggers: 'valid', 'validity', 'fallacy', 'premise', 'conclusion', 'modus ponens', 'modus tollens', 'paradox', 'logical', 'syllogism', 'deduction', 'induction', 'inference', 'argument form', 'soundness', 'entailment', 'contradiction'.

What this skill does

Logic is a production-ready Claude Code skill (quality score 70/100) in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/logic/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Logic skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/logic
curl -L https://claudskills.com/skills/logic/SKILL.md \
  -o ~/.claude/skills/logic/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/logic/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/logic/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\logic\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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