diff --git a/lua/gemini/chat.lua b/lua/gemini/chat.lua
index 9c8eaf6..608b26b 100644
--- a/lua/gemini/chat.lua
+++ b/lua/gemini/chat.lua
@@ -122,6 +122,12 @@ end
 local function setup_buffer_keymaps(bufnr)
     local opts = { buffer = bufnr, nowait = true, silent = true }
     
+    -- Block ALL leader key combinations
+    vim.keymap.set({'n', 'v'}, '<leader>', function()
+        vim.notify('Leader key commands are disabled in chat window', vim.log.levels.WARN)
+        return '<Esc>'
+    end, opts)
+    
     -- Disable ALL commands
     vim.keymap.set('n', ':', function()
         vim.notify('Commands are disabled in chat window', vim.log.levels.WARN)
@@ -133,7 +139,9 @@ local function setup_buffer_keymaps(bufnr)
         'ZZ', 'ZQ', 'gf', '<C-w>f', '<C-w>gf', '<C-w>F',
         '<C-w>v', '<C-w>s', '<C-w>n', '<C-^>', '<C-6>',
         '<C-w>^', '<C-w>6', 'gF', '<C-w>gF',
-        '<C-w>o', '<C-w>T', '<C-w>H', '<C-w>J', '<C-w>K', '<C-w>L'
+        '<C-w>o', '<C-w>T', '<C-w>H', '<C-w>J', '<C-w>K', '<C-w>L',
+        -- Add specific telescope/file finder bindings
+        '<leader>sf', '<leader>ff', '<leader>fg',
     }
     
     for _, key in ipairs(blocked_keys) do
@@ -158,11 +166,14 @@ local function setup_buffer_keymaps(bufnr)
         require("gemini").prompt_query(state.current_context)
     end, opts)
 
-    -- Allow basic navigation
+    -- Allow only basic navigation
     local allowed_keys = {'j', 'k', '<C-d>', '<C-u>', '<C-f>', '<C-b>', 'G', 'gg'}
     for _, key in ipairs(allowed_keys) do
         vim.keymap.set('n', key, key, opts)
     end
+
+    -- Block all other keys
+    vim.keymap.set({'n', 'v', 'i'}, '<Space>', '<Nop>', opts)
 end
 
 function M.create_window()