Plandex

An AI coding agent designed for big, real-world projects. It breaks your request into steps, builds context from your entire codebase, tracks every change with version control, and lets you review before applying. One of the top performers on the SWE-bench coding benchmark.

1. curl -sL https://plandex.ai/install.sh | bash 2. plandex sign-in (or use your own API key) 3. cd your-project && plandex new 4. plandex load src/ --tree (adds codebase context) 5. plandex tell "add user authentication with JWT" 6. plandex changes — review diff; plandex apply to apply