Zerostack is a minimal Rust-based coding agent that integrates with multiple AI providers and offers file tools, bash execution with optional sandboxing, and a crossterm terminal UI.

It includes configurable permission modes, session management, iterative loop-based coding for long tasks, and Git worktree workflows via slash commands. Installation is via `cargo install zerostack`, with optional Bubblewrap for sandboxed shell commands and support for custom prompts and providers through configuration files.