tmux-sendit.nvim

Send selected buffer contents, file paths, or diagnostics to another tmux pane without leaving neovim.

Select code, a file path, or diagnostics, pick a target pane, and the content is inserted as if you typed it. Useful for feeding code snippets, file references, diagnostics, or context to a CLI tool running in another pane - like sending selections to a claude code session without constantly switching between tmux panes.

Requirements

• neovim >= 0.9
• tmux

Installation

lazy.nvim

{
  "js/tmux-sendit.nvim",
  opts = {},
}

packer.nvim

use {
  "js/tmux-sendit.nvim",
  config = function()
    require("sendit").setup({})
  end,
}

mini.deps

MiniDeps.add({
  source = "js/tmux-sendit.nvim",
})
require("sendit").setup({})

Configuration

These are the defaults — pass any overrides to setup():

require("sendit").setup({
  -- shell command used to send text to a tmux pane
  cmd = { "tmux", "send-keys", "-t" },

  -- only list panes from the current tmux session in the picker
  only_current_session = true,

  -- prefix/suffix wrapped around selections sent to the pane
  selection_prefix = "\n```",
  selection_suffix = "```\n",

  -- prefix/suffix wrapped around file paths sent to the pane
  path_prefix = "@",
  path_suffix = " ",
})

Commands & Keybindings

No keybindings are set by default. Bind the functions you need in your config:

-- lazy.nvim example with keybindings
{
  "js/tmux-sendit.nvim",
  keys = {
    { "<leader>a", group = "sendit", icon = "", desc = "sendit to tmux" },
    { "<leader>as", function() require("sendit").send_selection() end, mode = "v", desc = "Send selection to tmux pane" },
    { "<leader>af", function() require("sendit").send_rel_path() end, mode = { "n", "v" }, desc = "Send relative file path to tmux pane" },
    { "<leader>aF", function() require("sendit").send_abs_path() end, mode = { "n", "v" }, desc = "Send absolute file path to tmux pane" },
    { "<leader>ad", function() require("sendit").send_diagnostic() end, mode = { "n", "v" }, desc = "Send diagnostics to tmux pane" },
  },
  opts = {},
}

Commands

command / key	mode	description
:Sendit selection	visual	send the current visual selection
:Sendit path	normal	send the project-relative file path
:Sendit fullpath	normal	send the absolute file path
:Sendit diagnostic	normal	send diagnostics to tmux pane

License

MIT