nighthawk

Open-source, local-first, cross-platform AI terminal autocomplete. The spiritual successor to Fig.

What is this?

Type a command, see gray ghost text with the completion. Press Tab to accept. No login, no telemetry, no cloud required. Works in any terminal, any shell.

Features

• Inline ghost text via ANSI escapes — works in any terminal emulator
• 689+ CLI specs from the withfig/autocomplete community repo
• Auto-parse --help for any CLI without a spec
• History-based predictions — your most-used commands surface first
• Full-token replacement — typo-aware (ccla → claude, not cclaude)
• Zero config — works immediately with no API key, no login, no account
• Cross-platform — macOS, Linux, Windows
• Multi-shell — zsh and PowerShell (5.1+, 7+)
• Local LLM support — AI completions via local Ollama / llama.cpp / vLLM, never leave your machine (opt-in via --features local-llm)
• BYOK cloud — bring your own API key for OpenAI, Anthropic, or Groq (opt-in via --features cloud-llm)

Architecture

Lightweight Rust daemon + thin shell plugins (~50 lines each). The daemon runs a tiered prediction cascade:

Status

Early development. Building in public.

License

MIT