Neovim RPC

When Claude Code runs inside a Neovim terminal, the $NVIM environment variable points to the parent Neovim's Unix socket. This gives full access to Neovim's msgpack-RPC API without any plugins or HTTP servers.

Prerequisites

Before sending any commands, verify the socket is available:

echo "$NVIM"

If $NVIM is empty, you are not running inside a Neovim terminal and cannot communicate with a Neovim instance.