Installing the command-line executable

Assuming you have Rust/Cargo installed, run this command in a terminal:

cargo install henri

It will make the henri command available in your PATH if you've allowed the PATH to be modified when installing Rust. cargo uninstall henri uninstalls.

Back to the crate overview.

Readme

Henri 🐕

This is an LLM coding assistant. Mostly an experiment to see if I could vibe code a vibe coding tool, and it turns out you can. Named after my Golden Retriever after hearing that AI coding agents were much like letting a Golden Retriever code.

There is no way this tool can keep up with the progress of Claude Code or OpenCode, but sometimes I just prefer its simplicity.

Henri remains simple. It executes one task at a time serially, providing verbose output so you can see exactly what's going on. It uses no sub-agents or background tasks. In some ways, I prefer this to what the more advanced agents are doing these days.

Features

Multi Provider / Multi Model

Built-in support for the following providers:

GitHub Copilot
Anthropic Claude Pro/Max
OpenAI ChatGPT Pro
Google Antigravity
OpenCode Zen
OpenAI Compatible APIs (like Z.ai)
OpenRouter

Sandboxing

Henri has three security modes:

Read-Write (RW): Tools and shell commands can write only inside the current directory (and children), plus /tmp. This is the default.
Read-Only (RO): Tools and shell commands cannot write files at all.
YOLO: No sandbox restrictions—tools and shell can write anywhere.

Switch modes with /read-write, /read-only, /yolo, or Ctrl+X to cycle through them. Start in read-only mode with henri cli --read-only.

Sandboxing uses Linux Landlock; on unsupported systems, restrictions are best-effort.

Installation

Currently, the only way to install is with Cargo:

cargo install --locked henri

This will install to ~/.cargo/bin. Ensure that directory is in your PATH, or move the binary after installation:

mv ~/.cargo/bin/henri ~/.local/bin/henri

Running

henri

On first start, you must configure a provider/model with the "/provider" command.

Adding a Provider

Henri supports multiple AI providers. Add one with:

henri provider add

To remove a provider:

henri provider remove

Configuration is stored in ~/.config/henri/config.toml.