fix: enhance ClaudeCodeSend to handle tree multi-selection properly

- Add tree buffer detection to ClaudeCodeSend command
- Delegate to tree integration when in nvim-tree or neo-tree buffers
- Fixes issue where visual selection in tree sent line ranges instead of files
- Now properly sends each selected file as individual at_mentions
- Simplify keybinding configuration - single command handles both contexts
- Update documentation to reflect enhanced functionality

Resolves multi-file selection issue in neotree/nvim-tree

Co-authored-by: ThomasK33 <[email protected]>

Author: blink-so[bot]

README.md

@@ -51,8 +51,8 @@ Using [lazy.nvim](https://github.com/folke/lazy.nvim):
   keys = {
     { "<leader>ac", "<cmd>ClaudeCode<cr>", desc = "Toggle Claude" },
     { "<leader>as", "<cmd>ClaudeCodeSend<cr>", mode = "v", desc = "Send to Claude" },
-    -- Add file from nvim-tree or neo-tree
-    { "<leader>as", "<cmd>ClaudeCodeTreeAdd<cr>", desc = "Add file to Claude context", ft = { "NvimTree", "neo-tree" } },
+    -- Tree integration works automatically with the same keybinding
+    { "<leader>as", "<cmd>ClaudeCodeSend<cr>", desc = "Add file to Claude context", ft = { "NvimTree", "neo-tree" } },
   },
 }
 ```
@@ -74,8 +74,8 @@ That's it! For more configuration options, see [Advanced Setup](#advanced-setup)
 ## Commands
 
 - `:ClaudeCode` - Toggle the Claude Code terminal window
-- `:ClaudeCodeSend` - Send current visual selection to Claude
-- `:ClaudeCodeTreeAdd` - Add selected file(s) from tree explorer to Claude context
+- `:ClaudeCodeSend` - Send current visual selection to Claude, or add files from tree explorer
+- `:ClaudeCodeTreeAdd` - Add selected file(s) from tree explorer to Claude context (also available via ClaudeCodeSend)
 
 ### Tree Integration
 

lua/claudecode/init.lua

@@ -251,6 +251,58 @@ function M._create_commands()
       vim.notify("Claude Code integration is not running", vim.log.levels.ERROR)
       return
     end
+
+    -- Check if we're in a tree buffer - if so, delegate to tree integration
+    local current_ft = vim.bo.filetype
+    if current_ft == "NvimTree" or current_ft == "neo-tree" then
+      logger.debug("command", "ClaudeCodeSend: Detected tree buffer, delegating to tree integration")
+
+      local integrations = require("claudecode.integrations")
+      local files, error = integrations.get_selected_files_from_tree()
+
+      if error then
+        logger.warn("command", "ClaudeCodeSend->TreeAdd: " .. error)
+        vim.notify(error, vim.log.levels.WARN, { title = "ClaudeCode" })
+        return
+      end
+
+      if not files or #files == 0 then
+        logger.warn("command", "ClaudeCodeSend->TreeAdd: No files selected")
+        vim.notify("No files selected", vim.log.levels.WARN, { title = "ClaudeCode" })
+        return
+      end
+
+      -- Send each file as an at_mention (full file, no line numbers)
+      local success_count = 0
+      for _, file_path in ipairs(files) do
+        local params = {
+          filePath = file_path,
+          lineStart = nil, -- No line numbers for full file
+          lineEnd = nil, -- No line numbers for full file
+        }
+
+        local broadcast_success = M.state.server.broadcast("at_mentioned", params)
+        if broadcast_success then
+          success_count = success_count + 1
+          logger.debug("command", "ClaudeCodeSend->TreeAdd: Added file " .. file_path)
+        else
+          logger.error("command", "ClaudeCodeSend->TreeAdd: Failed to add file " .. file_path)
+        end
+      end
+
+      if success_count > 0 then
+        local message = success_count == 1 and "Added 1 file to Claude context"
+          or string.format("Added %d files to Claude context", success_count)
+        logger.debug("command", message) -- Use debug level to avoid popup
+      else
+        vim.notify("Failed to add any files", vim.log.levels.ERROR, { title = "ClaudeCode" })
+      end
+
+      -- Exit visual mode if we were in it
+      vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<Esc>", true, false, true), "n", false)
+      return
+    end
+
     logger.debug(
       "command",
       "ClaudeCodeSend (new logic) invoked. Mode: "