ClaudSkills / Engineering / architecture

Fallow

Quality score: 70/100 · Category: Engineering · Sub-category: architecture

lang:typescriptlang:javascripttype:review

Codebase intelligence for JavaScript and TypeScript. Free static layer finds unused code (files, exports, types, dependencies), code duplication, circular dependencies, complexity hotspots, architecture boundary violations, and feature flag patterns. Optional paid runtime layer (Fallow Runtime) merges production execution data into the same health report for hot-path review, cold-path deletion confidence, and stale-flag evidence. 90 framework plugins, zero configuration, sub-second static analysis. Use when asked to analyze code health, find unused code, detect duplicates, check circular dependencies, audit complexity, check architecture boundaries, detect feature flags, clean up the codebase, auto-fix issues, merge runtime coverage, or run fallow.

What this skill does

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

When to invoke it: Use when asked to analyze code health, find unused code, detect duplicates, check circular dependencies, audit complexity, check architecture boundaries, detect feature flags, clean up the codebase, auto-fix issues, merge runtime coverage, or run fallow.

Who uses this skill

The Fallow 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 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/fallow
curl -L https://claudskills.com/skills/fallow/SKILL.md \
  -o ~/.claude/skills/fallow/SKILL.md

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

Skills live at ~/.claude/skills/fallow/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\fallow\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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