Hypothesis Tester is a well-rated Claude Code skill (quality score 80/100) in the research-methods sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/hypothesis-tester/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user needs to validate an assumption, design an A/B test, evaluate experiment results, or decide whether to ship based on data. Triggers include "hypothesis", "A/B test", "experiment", "validate assumption", "test this", "should we ship", or when making a decision that should be data-informed.
The Hypothesis Tester skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. 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.
mkdir -p ~/.claude/skills/hypothesis-tester curl -L https://claudskills.com/skills/hypothesis-tester/SKILL.md \ -o ~/.claude/skills/hypothesis-tester/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/hypothesis-tester/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/hypothesis-tester/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\hypothesis-tester\SKILL.md on Windows. See the full install guide for step-by-step instructions.
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.
Browse all Science & Research skills in the ClaudSkills registry, or explore these top-rated picks from the same category: