The safety model costs you nothing in the daily flow. Commands in the sandbox run without a question.
Chat or headlessAn Ink chat with @files, !commands, /diff and sessions. Or -p with JSON output in Claude Code's headless format.
Any modelClaude, or open models through Ollama, LM Studio, llama.cpp, vLLM, OpenRouter or any OpenAI-compatible server.
Plan mode and undoPlan first, then build. /undo and /redo restore the files and the conversation of a turn.
ExtensionsMCP servers (stdio and remote, with OAuth), skills, custom agents, slash commands and hooks.
Code intelligenceA local index for TypeScript, Python, Java, Go and Rust: symbols, references, callers and impact.
Overnight jobsPlan now, build later on a job branch with an approval list. Proof of work: tests before and after, and a review.
EvalsBuilt-in task suites, and a benchmark made from your own repository's history.
DiagnosticsLanguage-server errors after each edit, and formatters, both opt-in.