hiharin

Reducio — Development skill for Claude Code

Development community

Shrink it — simplify and de-nest without changing behavior.

How to install Reducio

Installs to ~/.claude/skills/hiharin-claude-spellbook-reducio/SKILL.md

Terminal

mkdir -p ~/.claude/skills/hiharin-claude-spellbook-reducio && curl -fsSL https://raw.githubusercontent.com/hiharin/claude-spellbook/HEAD/commands/reducio.md -o ~/.claude/skills/hiharin-claude-spellbook-reducio/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Reducio does

description: Shrink it — simplify and de-nest without changing behavior argument-hint: "[file, function, or path]"

Cast **Reducio** on $ARGUMENTS.

Reduce complexity while preserving behavior exactly:

flatten deep nesting with early returns / guard clauses
remove redundant branches, dead conditions, and needless intermediates
collapse duplicated logic into one place
replace clever code with plain code
prefer the language's idioms and standard library over hand-rolled versions

Alternatives in Development

Code Simplify 21.9k ★
Code Simplifier — Simplify code while preserving functionality 14k ★
Claude Skills Project Configuration — This file governs Claude's behavior when working on the claude-skills repository 6.8k ★