[BUG] :ClaudeCodeSend raises an error message if Claude Code buffer is hidden

[mikkelsvartveit]

Bug Description

When running :ClaudeCodeSend while Claude Code is not in a visible buffer, an error message is shown in Neovim. After dismissing the error with Enter, the context is still sent to Claude Code as expected.

To Reproduce

1. Open Neovim
2. Run :ClaudeCode twice to launch and then hide Claude Code.
3. Make a selection with visual mode
4. Run :ClaudeCodeSend

Expected Behavior

The selected code should be sent to Claude Code without throwing an error. Personally, I would want this command to also open the hidden Claude Code buffer.

Environment

• Neovim version: 0.11.1
• Claude Code CLI version: 1.0.24
• OS: macOS 15.5
• Plugin version: commit da78309

Error Messages

Error executing vim.schedule lua callback: .../lazy/claudecode.nvim/lua/claudecode/terminal/native.lua:147: Invalid 'window': Expected Lua number
stack traceback:
        [C]: in function 'nvim_set_current_win'
        .../lazy/claudecode.nvim/lua/claudecode/terminal/native.lua:147: in function 'focus_terminal'
        .../lazy/claudecode.nvim/lua/claudecode/terminal/native.lua:256: in function 'open'
        ...re/nvim/lazy/claudecode.nvim/lua/claudecode/terminal.lua:199: in function 'open'
        .../share/nvim/lazy/claudecode.nvim/lua/claudecode/init.lua:498: in function 'callback'
        .../lazy/claudecode.nvim/lua/claudecode/visual_commands.lua:52: in function <.../lazy/claudecode.nvim/lua/claudecode/visual_commands.lua:50>

[mikkelsvartveit]

Just wanted to say I really like this plugin! Thank you for your work @ThomasK33

[ThomasK33]

Hey @mikkelsvartveit thanks for opening this issue. I wanted to get back to you yesterday, but things got in the way.

I’ve refactored the tree file adding, text selection sending and :ClaudeCodeAdd command to open the terminal window if it’s hidden instead of resulting in an error.
Additionally, if no Claude Code instance is running in the background yet, those commands will now queue the mentions for up to 5 seconds (configurable) while waiting for a Claude Code instance to connect, all the while opening the terminal in parallel and running the claude command.