The 5-Minute Claude Code Setup: What 'Bare Minimum' Actually Means in 2026

Forget complex configs. The 'bare minimum' Claude Code setup is now just three files: CLAUDE.md, .claudeignore, and a skills registry. Here's how to structure them. The Technique — Defining the Modern Minimum A 'bare minimum' setup for Claude Code no longer means just installing the CLI. Based on widespread developer practice and recent ecosystem developments, the true foundation is a three-file configuration that establishes context, boundaries, and reusable logic. This setup is what enables Claude Code to act as a true agentic co-pilot rather than a simple code generator. The core trio is: CLAUDE.md : Your project's single source of truth for the AI. .claudeignore : The guardrails that prevent wasted tokens and context pollution. A Centralized Skills Registry (or local .claude/skills/ ) : A directory of reusable prompts and workflows. Why It Works — Context, Efficiency, and Control This structure works because it directly addresses Claude Code's operational model. The CLAUDE.md file