Goldmask is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/goldmask/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when assessing blast radius of changes, when understanding WHY code was written a certain way, when planning risky modifications, or when a refactor could have hidden side effects. Traces WHAT changes, WHY it exists (git archaeology), and HOW RISKY the area is (churn + ownership metrics).
The Goldmask skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. 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/goldmask curl -L https://claudskills.com/skills/goldmask/SKILL.md \ -o ~/.claude/skills/goldmask/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/goldmask/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/goldmask/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\goldmask\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 Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:
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