Claude Code parallel agents: run 4 tasks simultaneously and merge with git

Claude Code parallel agents: run 4 tasks simultaneously and merge with git One of the most underused Claude Code patterns is parallel subagents. Instead of waiting for Claude to finish one task before starting the next, you can spawn multiple agents working simultaneously — then merge. Here's how to actually do it. The problem with sequential Claude Code Default Claude Code is sequential. You give it a task, it works, you give it the next task. This is fine for small changes. But for big refactors — migrating an API, updating a design system, adding tests to 50 files — sequential means waiting hours for something that could take 20 minutes. The parallel pattern The idea is simple: split your work into bounded, independent chunks, run them in parallel, merge the results. # Terminal 1 — auth module cd /your/project && git checkout -b agent/auth claude "Refactor auth.js: add JWT refresh tokens, add rate limiting, add tests. Work only in src/auth/" # Terminal 2 — user module cd /yo