Hdd is a community-contributed Claude Code skill in the research-methods sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/hdd/ and loads when your prompt matches the skill's trigger.
The Hdd 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 56,000+ capabilities you can install for Claude Code — the Claude CLI agent.
mkdir -p ~/.claude/skills/hdd curl -L https://claudskills.com/skills/hdd/SKILL.md \ -o ~/.claude/skills/hdd/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/hdd/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/hdd/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\hdd\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.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Browse all Science & Research skills in the ClaudSkills registry, or explore these other picks from the same category:
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